diff --git a/sys/amd64/linux/linux.h b/sys/amd64/linux/linux.h
index 1bd2771b7ab3..82a700dd8554 100644
--- a/sys/amd64/linux/linux.h
+++ b/sys/amd64/linux/linux.h
@@ -37,15 +37,6 @@
 
 #define	LINUX_LEGACY_SYSCALLS
 
-/*
- * debugging support
- */
-extern u_char linux_debug_map[];
-#define	ldebug(name)	isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
-#define	ARGS(nm, fmt)	"linux(%ld/%ld): "#nm"("fmt")\n",			\
-			(long)td->td_proc->p_pid, (long)td->td_tid
-#define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
-			(long)td->td_proc->p_pid, (long)td->td_tid
 #define	LINUX_DTRACE	linuxulator
 
 #define	PTRIN(v)	(void *)(v)
diff --git a/sys/amd64/linux/linux_sysvec.c b/sys/amd64/linux/linux_sysvec.c
index 687fc70d9924..caef96cffa19 100644
--- a/sys/amd64/linux/linux_sysvec.c
+++ b/sys/amd64/linux/linux_sysvec.c
@@ -86,20 +86,6 @@ __FBSDID("$FreeBSD$");
 
 MODULE_VERSION(linux64, 1);
 
-#if defined(DEBUG)
-SYSCTL_PROC(_compat_linux, OID_AUTO, debug,
-	    CTLTYPE_STRING | CTLFLAG_RW,
-	    0, 0, linux_sysctl_debug, "A",
-	    "Linux 64 debugging control");
-#endif
-
-/*
- * Allow the sendsig functions to use the ldebug() facility even though they
- * are not syscalls themselves.  Map them to syscall 0.  This is slightly less
- * bogus than using ldebug(sigreturn).
- */
-#define	LINUX_SYS_linux_rt_sendsig	0
-
 const char *linux_kplatform;
 static int linux_szsigcode;
 static vm_object_t linux_shared_page_obj;
@@ -645,9 +631,6 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 
 	/* Copy the sigframe out to the user's stack. */
 	if (copyout(&sf, sfp, sizeof(*sfp)) != 0) {
-#ifdef DEBUG
-		printf("process %ld has trashed its stack\n", (long)p->p_pid);
-#endif
 		PROC_LOCK(p);
 		sigexit(td, SIGILL);
 	}
diff --git a/sys/amd64/linux32/linux.h b/sys/amd64/linux32/linux.h
index 0b50abd50e0b..aed70f5e4036 100644
--- a/sys/amd64/linux32/linux.h
+++ b/sys/amd64/linux32/linux.h
@@ -40,15 +40,6 @@
 
 #define	LINUX_LEGACY_SYSCALLS
 
-/*
- * debugging support
- */
-extern u_char linux_debug_map[];
-#define	ldebug(name)	isclr(linux_debug_map, LINUX32_SYS_linux_ ## name)
-#define	ARGS(nm, fmt)	"linux(%ld/%ld): "#nm"("fmt")\n",			\
-			(long)td->td_proc->p_pid, (long)td->td_tid
-#define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
-			(long)td->td_proc->p_pid, (long)td->td_tid
 #define	LINUX_DTRACE	linuxulator32
 
 #define	LINUX32_MAXUSER		((1ul << 32) - PAGE_SIZE)
diff --git a/sys/amd64/linux32/linux32_machdep.c b/sys/amd64/linux32/linux32_machdep.c
index a438395c4f08..d6bb4eefd2f5 100644
--- a/sys/amd64/linux32/linux32_machdep.c
+++ b/sys/amd64/linux32/linux32_machdep.c
@@ -133,11 +133,6 @@ linux_execve(struct thread *td, struct linux_execve_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(execve))
-		printf(ARGS(execve, "%s"), path);
-#endif
-
 	error = freebsd32_exec_copyin_args(&eargs, path, UIO_SYSSPACE,
 	    args->argp, args->envp);
 	free(path, M_TEMP);
@@ -382,11 +377,6 @@ linux_old_select(struct thread *td, struct linux_old_select_args *args)
 	struct linux_select_args newsel;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(old_select))
-		printf(ARGS(old_select, "%p"), args->ptr);
-#endif
-
 	error = copyin(args->ptr, &linux_args, sizeof(linux_args));
 	if (error)
 		return (error);
@@ -410,29 +400,19 @@ linux_set_cloned_tls(struct thread *td, void *desc)
 
 	error = copyin(desc, &info, sizeof(struct l_user_desc));
 	if (error) {
-		printf(LMSG("copyin failed!"));
+		linux_msg(td, "set_cloned_tls copyin info failed!");
 	} else {
+
 		/* We might copy out the entry_number as GUGS32_SEL. */
 		info.entry_number = GUGS32_SEL;
 		error = copyout(&info, desc, sizeof(struct l_user_desc));
 		if (error)
-			printf(LMSG("copyout failed!"));
+			linux_msg(td, "set_cloned_tls copyout info failed!");
 
 		a[0] = LINUX_LDT_entry_a(&info);
 		a[1] = LINUX_LDT_entry_b(&info);
 
 		memcpy(&sd, &a, sizeof(a));
-#ifdef DEBUG
-		if (ldebug(clone))
-			printf("Segment created in clone with "
-			    "CLONE_SETTLS: lobase: %x, hibase: %x, "
-			    "lolimit: %x, hilimit: %x, type: %i, "
-			    "dpl: %i, p: %i, xx: %i, long: %i, "
-			    "def32: %i, gran: %i\n", sd.sd_lobase,
-			    sd.sd_hibase, sd.sd_lolimit, sd.sd_hilimit,
-			    sd.sd_type, sd.sd_dpl, sd.sd_p, sd.sd_xx,
-			    sd.sd_long, sd.sd_def32, sd.sd_gran);
-#endif
 		pcb = td->td_pcb;
 		pcb->pcb_gsbase = (register_t)info.base_addr;
 		td->td_frame->tf_gs = GSEL(GUGS32_SEL, SEL_UPL);
@@ -461,13 +441,6 @@ int
 linux_mmap2(struct thread *td, struct linux_mmap2_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(mmap2))
-		printf(ARGS(mmap2, "0x%08x, %d, %d, 0x%08x, %d, %d"),
-		    args->addr, args->len, args->prot,
-		    args->flags, args->fd, args->pgoff);
-#endif
-
 	return (linux_mmap_common(td, PTROUT(args->addr), args->len, args->prot,
 		args->flags, args->fd, (uint64_t)(uint32_t)args->pgoff *
 		PAGE_SIZE));
@@ -483,13 +456,6 @@ linux_mmap(struct thread *td, struct linux_mmap_args *args)
 	if (error)
 		return (error);
 
-#ifdef DEBUG
-	if (ldebug(mmap))
-		printf(ARGS(mmap, "0x%08x, %d, %d, 0x%08x, %d, %d"),
-		    linux_args.addr, linux_args.len, linux_args.prot,
-		    linux_args.flags, linux_args.fd, linux_args.pgoff);
-#endif
-
 	return (linux_mmap_common(td, linux_args.addr, linux_args.len,
 	    linux_args.prot, linux_args.flags, linux_args.fd,
 	    (uint32_t)linux_args.pgoff));
@@ -526,12 +492,6 @@ linux_sigaction(struct thread *td, struct linux_sigaction_args *args)
 	l_sigaction_t act, oact;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sigaction))
-		printf(ARGS(sigaction, "%d, %p, %p"),
-		    args->sig, (void *)args->nsa, (void *)args->osa);
-#endif
-
 	if (args->nsa != NULL) {
 		error = copyin(args->nsa, &osa, sizeof(l_osigaction_t));
 		if (error)
@@ -568,11 +528,6 @@ linux_sigsuspend(struct thread *td, struct linux_sigsuspend_args *args)
 	sigset_t sigmask;
 	l_sigset_t mask;
 
-#ifdef DEBUG
-	if (ldebug(sigsuspend))
-		printf(ARGS(sigsuspend, "%08lx"), (unsigned long)args->mask);
-#endif
-
 	LINUX_SIGEMPTYSET(mask);
 	mask.__mask = args->mask;
 	linux_to_bsd_sigset(&mask, &sigmask);
@@ -586,12 +541,6 @@ linux_rt_sigsuspend(struct thread *td, struct linux_rt_sigsuspend_args *uap)
 	sigset_t sigmask;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigsuspend))
-		printf(ARGS(rt_sigsuspend, "%p, %d"),
-		    (void *)uap->newset, uap->sigsetsize);
-#endif
-
 	if (uap->sigsetsize != sizeof(l_sigset_t))
 		return (EINVAL);
 
@@ -609,11 +558,6 @@ linux_pause(struct thread *td, struct linux_pause_args *args)
 	struct proc *p = td->td_proc;
 	sigset_t sigmask;
 
-#ifdef DEBUG
-	if (ldebug(pause))
-		printf(ARGS(pause, ""));
-#endif
-
 	PROC_LOCK(p);
 	sigmask = td->td_sigmask;
 	PROC_UNLOCK(p);
@@ -627,11 +571,6 @@ linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap)
 	l_stack_t lss;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sigaltstack))
-		printf(ARGS(sigaltstack, "%p, %p"), uap->uss, uap->uoss);
-#endif
-
 	if (uap->uss != NULL) {
 		error = copyin(uap->uss, &lss, sizeof(l_stack_t));
 		if (error)
@@ -657,12 +596,6 @@ int
 linux_ftruncate64(struct thread *td, struct linux_ftruncate64_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(ftruncate64))
-		printf(ARGS(ftruncate64, "%u, %jd"), args->fd,
-		    (intmax_t)args->length);
-#endif
-
 	return (kern_ftruncate(td, args->fd, args->length));
 }
 
@@ -743,15 +676,6 @@ linux_set_thread_area(struct thread *td,
 	if (error)
 		return (error);
 
-#ifdef DEBUG
-	if (ldebug(set_thread_area))
-		printf(ARGS(set_thread_area, "%i, %x, %x, %i, %i, %i, "
-		    "%i, %i, %i"), info.entry_number, info.base_addr,
-		    info.limit, info.seg_32bit, info.contents,
-		    info.read_exec_only, info.limit_in_pages,
-		    info.seg_not_present, info.useable);
-#endif
-
 	/*
 	 * Semantics of Linux version: every thread in the system has array
 	 * of three TLS descriptors. 1st is GLIBC TLS, 2nd is WINE, 3rd unknown.
@@ -805,25 +729,6 @@ linux_set_thread_area(struct thread *td,
 	}
 
 	memcpy(&sd, &a, sizeof(a));
-#ifdef DEBUG
-	if (ldebug(set_thread_area))
-		printf("Segment created in set_thread_area: "
-		    "lobase: %x, hibase: %x, lolimit: %x, hilimit: %x, "
-		    "type: %i, dpl: %i, p: %i, xx: %i, long: %i, "
-		    "def32: %i, gran: %i\n",
-		    sd.sd_lobase,
-		    sd.sd_hibase,
-		    sd.sd_lolimit,
-		    sd.sd_hilimit,
-		    sd.sd_type,
-		    sd.sd_dpl,
-		    sd.sd_p,
-		    sd.sd_xx,
-		    sd.sd_long,
-		    sd.sd_def32,
-		    sd.sd_gran);
-#endif
-
 	pcb = td->td_pcb;
 	pcb->pcb_gsbase = (register_t)info.base_addr;
 	set_pcb_flags(pcb, PCB_32BIT);
diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c
index 11353bcee8ca..d49be15d04f8 100644
--- a/sys/amd64/linux32/linux32_sysvec.c
+++ b/sys/amd64/linux32/linux32_sysvec.c
@@ -91,14 +91,6 @@ __FBSDID("$FreeBSD$");
 
 MODULE_VERSION(linux, 1);
 
-/*
- * Allow the sendsig functions to use the ldebug() facility even though they
- * are not syscalls themselves.  Map them to syscall 0.  This is slightly less
- * bogus than using ldebug(sigreturn).
- */
-#define	LINUX32_SYS_linux_rt_sendsig	0
-#define	LINUX32_SYS_linux_sendsig	0
-
 const char *linux_kplatform;
 static int linux_szsigcode;
 static vm_object_t linux_shared_page_obj;
@@ -286,11 +278,6 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	regs = td->td_frame;
 	oonstack = sigonstack(regs->tf_rsp);
 
-#ifdef DEBUG
-	if (ldebug(rt_sendsig))
-		printf(ARGS(rt_sendsig, "%p, %d, %p, %u"),
-		    catcher, sig, (void*)mask, code);
-#endif
 	/* Allocate space for the signal handler context. */
 	if ((td->td_pflags & TDP_ALTSTACK) && !oonstack &&
 	    SIGISMEMBER(psp->ps_sigonstack, sig)) {
@@ -349,23 +336,11 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	frame.sf_sc.uc_mcontext.sc_cr2    = (u_int32_t)(uintptr_t)ksi->ksi_addr;
 	frame.sf_sc.uc_mcontext.sc_trapno = bsd_to_linux_trapcode(code);
 
-#ifdef DEBUG
-	if (ldebug(rt_sendsig))
-		printf(LMSG("rt_sendsig flags: 0x%x, sp: %p, ss: 0x%lx, mask: 0x%x"),
-		    frame.sf_sc.uc_stack.ss_flags, td->td_sigstk.ss_sp,
-		    td->td_sigstk.ss_size, frame.sf_sc.uc_mcontext.sc_mask);
-#endif
-
 	if (copyout(&frame, fp, sizeof(frame)) != 0) {
 		/*
 		 * Process has trashed its stack; give it an illegal
 		 * instruction to halt it in its tracks.
 		 */
-#ifdef DEBUG
-		if (ldebug(rt_sendsig))
-			printf(LMSG("rt_sendsig: bad stack %p, oonstack=%x"),
-			    fp, oonstack);
-#endif
 		PROC_LOCK(p);
 		sigexit(td, SIGILL);
 	}
@@ -423,12 +398,6 @@ linux_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	regs = td->td_frame;
 	oonstack = sigonstack(regs->tf_rsp);
 
-#ifdef DEBUG
-	if (ldebug(sendsig))
-		printf(ARGS(sendsig, "%p, %d, %p, %u"),
-		    catcher, sig, (void*)mask, code);
-#endif
-
 	/* Allocate space for the signal handler context. */
 	if ((td->td_pflags & TDP_ALTSTACK) && !oonstack &&
 	    SIGISMEMBER(psp->ps_sigonstack, sig)) {
@@ -521,10 +490,6 @@ linux_sigreturn(struct thread *td, struct linux_sigreturn_args *args)
 
 	regs = td->td_frame;
 
-#ifdef DEBUG
-	if (ldebug(sigreturn))
-		printf(ARGS(sigreturn, "%p"), (void *)args->sfp);
-#endif
 	/*
 	 * The trampoline code hands us the sigframe.
 	 * It is unsafe to keep track of it ourselves, in the event that a
@@ -606,10 +571,6 @@ linux_rt_sigreturn(struct thread *td, struct linux_rt_sigreturn_args *args)
 
 	regs = td->td_frame;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigreturn))
-		printf(ARGS(rt_sigreturn, "%p"), (void *)args->ucp);
-#endif
 	/*
 	 * The trampoline code hands us the ucontext.
 	 * It is unsafe to keep track of it ourselves, in the event that a
@@ -674,11 +635,6 @@ linux_rt_sigreturn(struct thread *td, struct linux_rt_sigreturn_args *args)
 	ss.ss_size = lss->ss_size;
 	ss.ss_flags = linux_to_bsd_sigaltstack(lss->ss_flags);
 
-#ifdef DEBUG
-	if (ldebug(rt_sigreturn))
-		printf(LMSG("rt_sigret flags: 0x%x, sp: %p, ss: 0x%lx, mask: 0x%x"),
-		    ss.ss_flags, ss.ss_sp, ss.ss_size, context->sc_mask);
-#endif
 	(void)kern_sigaltstack(td, &ss, NULL);
 
 	return (EJUSTRETURN);
@@ -869,11 +825,6 @@ static u_long	linux32_maxvmem = LINUX32_MAXVMEM;
 SYSCTL_ULONG(_compat_linux32, OID_AUTO, maxvmem, CTLFLAG_RW,
     &linux32_maxvmem, 0, "");
 
-#if defined(DEBUG)
-SYSCTL_PROC(_compat_linux32, OID_AUTO, debug, CTLTYPE_STRING | CTLFLAG_RW, 0, 0,
-    linux_sysctl_debug, "A", "Linux debugging control");
-#endif
-
 static void
 linux32_fixlimit(struct rlimit *rl, int which)
 {
diff --git a/sys/arm64/linux/linux.h b/sys/arm64/linux/linux.h
index 1b72869bf686..69be1f0a0aa4 100644
--- a/sys/arm64/linux/linux.h
+++ b/sys/arm64/linux/linux.h
@@ -34,14 +34,6 @@
 #include <compat/linux/linux.h>
 #include <arm64/linux/linux_syscall.h>
 
-/* Debugging support */
-#define DEBUG
-extern u_char linux_debug_map[];
-#define	ldebug(name)	isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
-#define	ARGS(nm, fmt)	"linux(%ld/%ld): "#nm"("fmt")\n",			\
-			(long)td->td_proc->p_pid, (long)td->td_tid
-#define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
-			(long)td->td_proc->p_pid, (long)td->td_tid
 #define	LINUX_DTRACE	linuxulator
 
 #define	PTRIN(v)	(void *)(v)
diff --git a/sys/arm64/linux/linux_sysvec.c b/sys/arm64/linux/linux_sysvec.c
index 55831a546709..f34538cc207a 100644
--- a/sys/arm64/linux/linux_sysvec.c
+++ b/sys/arm64/linux/linux_sysvec.c
@@ -59,11 +59,6 @@ __FBSDID("$FreeBSD$");
 
 MODULE_VERSION(linux64elf, 1);
 
-#if defined(DEBUG)
-SYSCTL_PROC(_compat_linux, OID_AUTO, debug, CTLTYPE_STRING | CTLFLAG_RW, 0, 0,
-    linux_sysctl_debug, "A", "64-bit Linux debugging control");
-#endif
-
 const char *linux_kplatform;
 static int linux_szsigcode;
 static vm_object_t linux_shared_page_obj;
diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index e27f167aaba9..67a606896c6e 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -76,10 +76,7 @@ linux_creat(struct thread *td, struct linux_creat_args *args)
 	int error;
 
 	LCONVPATHEXIST(td, args->path, &path);
-#ifdef DEBUG
-	if (ldebug(creat))
-		printf(ARGS(creat, "%s, %d"), path, args->mode);
-#endif
+
 	error = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE,
 	    O_WRONLY | O_CREAT | O_TRUNC, args->mode);
 	LFREEPATH(path);
@@ -165,14 +162,6 @@ linux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mod
 	}
 
 done:
-#ifdef DEBUG
-#ifdef LINUX_LEGACY_SYSCALLS
-	if (ldebug(open))
-#else
-	if (ldebug(openat))
-#endif
-		printf(LMSG("open returns error %d"), error);
-#endif
 	LFREEPATH(path);
 	return (error);
 }
@@ -188,11 +177,7 @@ linux_openat(struct thread *td, struct linux_openat_args *args)
 		LCONVPATH_AT(td, args->filename, &path, 1, dfd);
 	else
 		LCONVPATH_AT(td, args->filename, &path, 0, dfd);
-#ifdef DEBUG
-	if (ldebug(openat))
-		printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd,
-		    path, args->flags, args->mode);
-#endif
+
 	return (linux_common_open(td, dfd, path, args->flags, args->mode));
 }
 
@@ -206,11 +191,7 @@ linux_open(struct thread *td, struct linux_open_args *args)
 		LCONVPATHCREAT(td, args->path, &path);
 	else
 		LCONVPATHEXIST(td, args->path, &path);
-#ifdef DEBUG
-	if (ldebug(open))
-		printf(ARGS(open, "%s, 0x%x, 0x%x"),
-		    path, args->flags, args->mode);
-#endif
+
 	return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode));
 }
 #endif
@@ -219,11 +200,6 @@ int
 linux_lseek(struct thread *td, struct linux_lseek_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(lseek))
-		printf(ARGS(lseek, "%d, %ld, %d"),
-		    args->fdes, (long)args->off, args->whence);
-#endif
 	return (kern_lseek(td, args->fdes, args->off, args->whence));
 }
 
@@ -234,11 +210,6 @@ linux_llseek(struct thread *td, struct linux_llseek_args *args)
 	int error;
 	off_t off;
 
-#ifdef DEBUG
-	if (ldebug(llseek))
-		printf(ARGS(llseek, "%d, %d:%d, %d"),
-		    args->fd, args->ohigh, args->olow, args->whence);
-#endif
 	off = (args->olow) | (((off_t) args->ohigh) << 32);
 
 	error = kern_lseek(td, args->fd, off, args->whence);
@@ -327,10 +298,6 @@ linux_getdents(struct thread *td, struct linux_getdents_args *args)
 	int buflen, error;
 	size_t retval;
 
-#ifdef DEBUG
-	if (ldebug(getdents))
-		printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
-#endif
 	buflen = min(args->count, MAXBSIZE);
 	buf = malloc(buflen, M_TEMP, M_WAITOK);
 
@@ -408,10 +375,6 @@ linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
 	int buflen, error;
 	size_t retval;
 
-#ifdef DEBUG
-	if (ldebug(getdents64))
-		uprintf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count);
-#endif
 	buflen = min(args->count, MAXBSIZE);
 	buf = malloc(buflen, M_TEMP, M_WAITOK);
 
@@ -483,10 +446,6 @@ linux_readdir(struct thread *td, struct linux_readdir_args *args)
 	struct l_dirent *linux_dirent;
 	int buflen, error;
 
-#ifdef DEBUG
-	if (ldebug(readdir))
-		printf(ARGS(readdir, "%d, *"), args->fd);
-#endif
 	buflen = LINUX_RECLEN(LINUX_NAME_MAX);
 	buf = malloc(buflen, M_TEMP, M_WAITOK);
 
@@ -539,10 +498,6 @@ linux_access(struct thread *td, struct linux_access_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(access))
-		printf(ARGS(access, "%s, %d"), path, args->amode);
-#endif
 	error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0,
 	    args->amode);
 	LFREEPATH(path);
@@ -564,11 +519,6 @@ linux_faccessat(struct thread *td, struct linux_faccessat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(faccessat))
-		printf(ARGS(access, "%s, %d"), path, args->amode);
-#endif
-
 	error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode);
 	LFREEPATH(path);
 
@@ -585,11 +535,6 @@ linux_unlink(struct thread *td, struct linux_unlink_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(unlink))
-		printf(ARGS(unlink, "%s"), path);
-#endif
-
 	error = kern_funlinkat(td, AT_FDCWD, path, FD_NONE, UIO_SYSSPACE, 0, 0);
 	if (error == EPERM) {
 		/* Introduce POSIX noncompliant behaviour of Linux */
@@ -617,11 +562,6 @@ linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(unlinkat))
-		printf(ARGS(unlinkat, "%s"), path);
-#endif
-
 	if (args->flag & LINUX_AT_REMOVEDIR)
 		error = kern_frmdirat(td, dfd, path, FD_NONE, UIO_SYSSPACE, 0);
 	else
@@ -644,10 +584,6 @@ linux_chdir(struct thread *td, struct linux_chdir_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(chdir))
-		printf(ARGS(chdir, "%s"), path);
-#endif
 	error = kern_chdir(td, path, UIO_SYSSPACE);
 	LFREEPATH(path);
 	return (error);
@@ -662,10 +598,6 @@ linux_chmod(struct thread *td, struct linux_chmod_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(chmod))
-		printf(ARGS(chmod, "%s, %d"), path, args->mode);
-#endif
 	error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE,
 	    args->mode, 0);
 	LFREEPATH(path);
@@ -682,11 +614,6 @@ linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(fchmodat))
-		printf(ARGS(fchmodat, "%s, %d"), path, args->mode);
-#endif
-
 	error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0);
 	LFREEPATH(path);
 	return (error);
@@ -701,10 +628,6 @@ linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
 
 	LCONVPATHCREAT(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(mkdir))
-		printf(ARGS(mkdir, "%s, %d"), path, args->mode);
-#endif
 	error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, args->mode);
 	LFREEPATH(path);
 	return (error);
@@ -720,10 +643,6 @@ linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHCREAT_AT(td, args->pathname, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(mkdirat))
-		printf(ARGS(mkdirat, "%s, %d"), path, args->mode);
-#endif
 	error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode);
 	LFREEPATH(path);
 	return (error);
@@ -738,10 +657,6 @@ linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(rmdir))
-		printf(ARGS(rmdir, "%s"), path);
-#endif
 	error = kern_frmdirat(td, AT_FDCWD, path, FD_NONE, UIO_SYSSPACE, 0);
 	LFREEPATH(path);
 	return (error);
@@ -761,10 +676,6 @@ linux_rename(struct thread *td, struct linux_rename_args *args)
 		return (error);
 	}
 
-#ifdef DEBUG
-	if (ldebug(rename))
-		printf(ARGS(rename, "%s, %s"), from, to);
-#endif
 	error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE);
 	LFREEPATH(from);
 	LFREEPATH(to);
@@ -788,10 +699,6 @@ linux_renameat(struct thread *td, struct linux_renameat_args *args)
 		return (error);
 	}
 
-#ifdef DEBUG
-	if (ldebug(renameat))
-		printf(ARGS(renameat, "%s, %s"), from, to);
-#endif
 	error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE);
 	LFREEPATH(from);
 	LFREEPATH(to);
@@ -813,10 +720,6 @@ linux_symlink(struct thread *td, struct linux_symlink_args *args)
 		return (error);
 	}
 
-#ifdef DEBUG
-	if (ldebug(symlink))
-		printf(ARGS(symlink, "%s, %s"), path, to);
-#endif
 	error = kern_symlinkat(td, path, AT_FDCWD, to, UIO_SYSSPACE);
 	LFREEPATH(path);
 	LFREEPATH(to);
@@ -839,11 +742,6 @@ linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args)
 		return (error);
 	}
 
-#ifdef DEBUG
-	if (ldebug(symlinkat))
-		printf(ARGS(symlinkat, "%s, %s"), path, to);
-#endif
-
 	error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE);
 	LFREEPATH(path);
 	LFREEPATH(to);
@@ -859,11 +757,6 @@ linux_readlink(struct thread *td, struct linux_readlink_args *args)
 
 	LCONVPATHEXIST(td, args->name, &name);
 
-#ifdef DEBUG
-	if (ldebug(readlink))
-		printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
-		    args->count);
-#endif
 	error = kern_readlinkat(td, AT_FDCWD, name, UIO_SYSSPACE,
 	    args->buf, UIO_USERSPACE, args->count);
 	LFREEPATH(name);
@@ -880,12 +773,6 @@ linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->path, &name, dfd);
 
-#ifdef DEBUG
-	if (ldebug(readlinkat))
-		printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf,
-		    args->bufsiz);
-#endif
-
 	error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf,
 	    UIO_USERSPACE, args->bufsiz);
 	LFREEPATH(name);
@@ -900,11 +787,6 @@ linux_truncate(struct thread *td, struct linux_truncate_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(truncate))
-		printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
-#endif
-
 	error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
 	LFREEPATH(path);
 	return (error);
@@ -919,11 +801,6 @@ linux_truncate64(struct thread *td, struct linux_truncate64_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(truncate64))
-		printf(ARGS(truncate64, "%s, %jd"), path, args->length);
-#endif
-
 	error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
 	LFREEPATH(path);
 	return (error);
@@ -952,10 +829,6 @@ linux_link(struct thread *td, struct linux_link_args *args)
 		return (error);
 	}
 
-#ifdef DEBUG
-	if (ldebug(link))
-		printf(ARGS(link, "%s, %s"), path, to);
-#endif
 	error = kern_linkat(td, AT_FDCWD, AT_FDCWD, path, to, UIO_SYSSPACE,
 	    FOLLOW);
 	LFREEPATH(path);
@@ -983,12 +856,6 @@ linux_linkat(struct thread *td, struct linux_linkat_args *args)
 		return (error);
 	}
 
-#ifdef DEBUG
-	if (ldebug(linkat))
-		printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path,
-			args->newdfd, to, args->flag);
-#endif
-
 	follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW :
 	    FOLLOW;
 	error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow);
@@ -1110,12 +977,6 @@ linux_mount(struct thread *td, struct linux_mount_args *args)
 	if (error != 0)
 		goto out;
 
-#ifdef DEBUG
-	if (ldebug(mount))
-		printf(ARGS(mount, "%s, %s, %s"),
-		    fstypename, mntfromname, mntonname);
-#endif
-
 	if (strcmp(fstypename, "ext2") == 0) {
 		strcpy(fstypename, "ext2fs");
 	} else if (strcmp(fstypename, "proc") == 0) {
@@ -1424,11 +1285,6 @@ int
 linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(fcntl))
-		printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
-#endif
-
 	return (fcntl_common(td, args));
 }
 
@@ -1441,11 +1297,6 @@ linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
 	struct linux_fcntl_args fcntl_args;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(fcntl64))
-		printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
-#endif
-
 	switch (args->cmd) {
 	case LINUX_F_GETLK64:
 		error = copyin((void *)args->arg, &linux_flock,
@@ -1495,10 +1346,6 @@ linux_chown(struct thread *td, struct linux_chown_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(chown))
-		printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
-#endif
 	error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid,
 	    args->gid, 0);
 	LFREEPATH(path);
@@ -1518,11 +1365,6 @@ linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD :  args->dfd;
 	LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(fchownat))
-		printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid);
-#endif
-
 	flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
 	    AT_SYMLINK_NOFOLLOW;
 	error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid,
@@ -1540,10 +1382,6 @@ linux_lchown(struct thread *td, struct linux_lchown_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(lchown))
-		printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
-#endif
 	error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid,
 	    args->gid, AT_SYMLINK_NOFOLLOW);
 	LFREEPATH(path);
@@ -1605,11 +1443,6 @@ linux_pipe(struct thread *td, struct linux_pipe_args *args)
 	int fildes[2];
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(pipe))
-		printf(ARGS(pipe, "*"));
-#endif
-
 	error = kern_pipe(td, fildes, 0, NULL, NULL);
 	if (error != 0)
 		return (error);
@@ -1630,11 +1463,6 @@ linux_pipe2(struct thread *td, struct linux_pipe2_args *args)
 	int fildes[2];
 	int error, flags;
 
-#ifdef DEBUG
-	if (ldebug(pipe2))
-		printf(ARGS(pipe2, "*, %d"), args->flags);
-#endif
-
 	if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0)
 		return (EINVAL);
 
diff --git a/sys/compat/linux/linux_fork.c b/sys/compat/linux/linux_fork.c
index 2024e4b2ca9b..066640e2fc9c 100644
--- a/sys/compat/linux/linux_fork.c
+++ b/sys/compat/linux/linux_fork.c
@@ -74,11 +74,6 @@ linux_fork(struct thread *td, struct linux_fork_args *args)
 	struct proc *p2;
 	struct thread *td2;
 
-#ifdef DEBUG
-	if (ldebug(fork))
-		printf(ARGS(fork, ""));
-#endif
-
 	bzero(&fr, sizeof(fr));
 	fr.fr_flags = RFFDG | RFPROC | RFSTOPPED;
 	fr.fr_procp = &p2;
@@ -110,11 +105,6 @@ linux_vfork(struct thread *td, struct linux_vfork_args *args)
 	struct proc *p2;
 	struct thread *td2;
 
-#ifdef DEBUG
-	if (ldebug(vfork))
-		printf(ARGS(vfork, ""));
-#endif
-
 	bzero(&fr, sizeof(fr));
 	fr.fr_flags = RFFDG | RFPROC | RFMEM | RFPPWAIT | RFSTOPPED;
 	fr.fr_procp = &p2;
@@ -149,14 +139,6 @@ linux_clone_proc(struct thread *td, struct linux_clone_args *args)
 	int exit_signal;
 	struct linux_emuldata *em;
 
-#ifdef DEBUG
-	if (ldebug(clone)) {
-		printf(ARGS(clone, "flags %x, stack %p, parent tid: %p, "
-		    "child tid: %p"), (unsigned)args->flags,
-		    args->stack, args->parent_tidptr, args->child_tidptr);
-	}
-#endif
-
 	exit_signal = args->flags & 0x000000ff;
 	if (LINUX_SIG_VALID(exit_signal)) {
 		exit_signal = linux_to_bsd_signal(exit_signal);
@@ -212,7 +194,7 @@ linux_clone_proc(struct thread *td, struct linux_clone_args *args)
 		error = copyout(&p2->p_pid, args->parent_tidptr,
 		    sizeof(p2->p_pid));
 		if (error)
-			printf(LMSG("copyout failed!"));
+			linux_msg(td, "copyout p_pid failed!");
 	}
 
 	PROC_LOCK(p2);
@@ -240,13 +222,6 @@ linux_clone_proc(struct thread *td, struct linux_clone_args *args)
 		sx_xunlock(&proctree_lock);
 	}
 
-#ifdef DEBUG
-	if (ldebug(clone))
-		printf(LMSG("clone: successful rfork to %d, "
-		    "stack %p sig = %d"), (int)p2->p_pid, args->stack,
-		    exit_signal);
-#endif
-
 	/*
 	 * Make this runnable after we are finished with it.
 	 */
@@ -268,14 +243,6 @@ linux_clone_thread(struct thread *td, struct linux_clone_args *args)
 	struct proc *p;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(clone)) {
-		printf(ARGS(clone, "thread: flags %x, stack %p, parent tid: %p, "
-		    "child tid: %p"), (unsigned)args->flags,
-		    args->stack, args->parent_tidptr, args->child_tidptr);
-	}
-#endif
-
 	LINUX_CTR4(clone_thread, "thread(%d) flags %x ptid %p ctid %p",
 	    td->td_tid, (unsigned)args->flags,
 	    args->parent_tidptr, args->child_tidptr);
@@ -360,12 +327,6 @@ linux_clone_thread(struct thread *td, struct linux_clone_args *args)
 
 	tidhash_add(newtd);
 
-#ifdef DEBUG
-	if (ldebug(clone))
-		printf(ARGS(clone, "successful clone to %d, stack %p"),
-		(int)newtd->td_tid, args->stack);
-#endif
-
 	LINUX_CTR2(clone_thread, "thread(%d) successful clone to %d",
 	    td->td_tid, newtd->td_tid);
 
@@ -373,7 +334,7 @@ linux_clone_thread(struct thread *td, struct linux_clone_args *args)
 		error = copyout(&newtd->td_tid, args->parent_tidptr,
 		    sizeof(newtd->td_tid));
 		if (error)
-			printf(LMSG("clone_thread: copyout failed!"));
+			linux_msg(td, "clone_thread: copyout td_tid failed!");
 	}
 
 	/*
diff --git a/sys/compat/linux/linux_getcwd.c b/sys/compat/linux/linux_getcwd.c
index 49fa94720c60..e4c7dd52398c 100644
--- a/sys/compat/linux/linux_getcwd.c
+++ b/sys/compat/linux/linux_getcwd.c
@@ -65,11 +65,6 @@ linux_getcwd(struct thread *td, struct linux_getcwd_args *args)
 	char *path;
 	int error, lenused;
 
-#ifdef DEBUG
-	if (ldebug(getcwd))
-		printf(ARGS(getcwd, "%p, %ld"), args->buf, (long)args->bufsize);
-#endif
-
 	/*
 	 * Linux returns ERANGE instead of EINVAL.
 	 */
diff --git a/sys/compat/linux/linux_ioctl.c b/sys/compat/linux/linux_ioctl.c
index 234d58b194fe..9dd7d7234357 100644
--- a/sys/compat/linux/linux_ioctl.c
+++ b/sys/compat/linux/linux_ioctl.c
@@ -238,12 +238,7 @@ linux_ioctl_hdio(struct thread *td, struct linux_ioctl_args *args)
 		 */
 		bytespercyl = (off_t) sectorsize * fwheads * fwsectors;
 		fwcylinders = mediasize / bytespercyl;
-#if defined(DEBUG)
-		linux_msg(td, "HDIO_GET_GEO: mediasize %jd, c/h/s %d/%d/%d, "
-			  "bpc %jd",
-			  (intmax_t)mediasize, fwcylinders, fwheads, fwsectors,
-			  (intmax_t)bytespercyl);
-#endif
+
 		if ((args->cmd & 0xffff) == LINUX_HDIO_GET_GEO) {
 			struct linux_hd_geometry hdg;
 
@@ -404,19 +399,6 @@ bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
 {
 	int i;
 
-#ifdef DEBUG
-	if (ldebug(ioctl)) {
-		printf("LINUX: BSD termios structure (input):\n");
-		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
-		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
-		    bios->c_ispeed, bios->c_ospeed);
-		printf("c_cc ");
-		for (i=0; i<NCCS; i++)
-			printf("%02x ", bios->c_cc[i]);
-		printf("\n");
-	}
-#endif
-
 	lios->c_iflag = 0;
 	if (bios->c_iflag & IGNBRK)
 		lios->c_iflag |= LINUX_IGNBRK;
@@ -525,19 +507,6 @@ bsd_to_linux_termios(struct termios *bios, struct linux_termios *lios)
 			lios->c_cc[i] = LINUX_POSIX_VDISABLE;
 	}
 	lios->c_line = 0;
-
-#ifdef DEBUG
-	if (ldebug(ioctl)) {
-		printf("LINUX: LINUX termios structure (output):\n");
-		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
-		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
-		    lios->c_lflag, (int)lios->c_line);
-		printf("c_cc ");
-		for (i=0; i<LINUX_NCCS; i++)
-			printf("%02x ", lios->c_cc[i]);
-		printf("\n");
-	}
-#endif
 }
 
 static void
@@ -545,19 +514,6 @@ linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
 {
 	int i;
 
-#ifdef DEBUG
-	if (ldebug(ioctl)) {
-		printf("LINUX: LINUX termios structure (input):\n");
-		printf("i=%08x o=%08x c=%08x l=%08x line=%d\n",
-		    lios->c_iflag, lios->c_oflag, lios->c_cflag,
-		    lios->c_lflag, (int)lios->c_line);
-		printf("c_cc ");
-		for (i=0; i<LINUX_NCCS; i++)
-			printf("%02x ", lios->c_cc[i]);
-		printf("\n");
-	}
-#endif
-
 	bios->c_iflag = 0;
 	if (lios->c_iflag & LINUX_IGNBRK)
 		bios->c_iflag |= IGNBRK;
@@ -667,19 +623,6 @@ linux_to_bsd_termios(struct linux_termios *lios, struct termios *bios)
 
 	bios->c_ispeed = bios->c_ospeed =
 	    linux_to_bsd_speed(lios->c_cflag & LINUX_CBAUD, sptab);
-
-#ifdef DEBUG
-	if (ldebug(ioctl)) {
-		printf("LINUX: BSD termios structure (output):\n");
-		printf("i=%08x o=%08x c=%08x l=%08x ispeed=%d ospeed=%d\n",
-		    bios->c_iflag, bios->c_oflag, bios->c_cflag, bios->c_lflag,
-		    bios->c_ispeed, bios->c_ospeed);
-		printf("c_cc ");
-		for (i=0; i<NCCS; i++)
-			printf("%02x ", bios->c_cc[i]);
-		printf("\n");
-	}
-#endif
 }
 
 static void
@@ -2367,10 +2310,6 @@ linux_ioctl_socket(struct thread *td, struct linux_ioctl_args *args)
 	case LINUX_SIOCSPGRP:
 	case LINUX_SIOCGIFCOUNT:
 		/* these ioctls don't take an interface name */
-#ifdef DEBUG
-		printf("%s(): ioctl %d\n", __func__,
-		    args->cmd & 0xffff);
-#endif
 		break;
 
 	case LINUX_SIOCGIFFLAGS:
@@ -2392,10 +2331,6 @@ linux_ioctl_socket(struct thread *td, struct linux_ioctl_args *args)
 		error = copyin((void *)args->arg, lifname, LINUX_IFNAMSIZ);
 		if (error != 0)
 			return (error);
-#ifdef DEBUG
-		printf("%s(): ioctl %d on %.*s\n", __func__,
-		    args->cmd & 0xffff, LINUX_IFNAMSIZ, lifname);
-#endif
 		memset(ifname, 0, sizeof(ifname));
 		ifp = ifname_linux_to_bsd(td, lifname, ifname);
 		if (ifp == NULL)
@@ -2409,10 +2344,6 @@ linux_ioctl_socket(struct thread *td, struct linux_ioctl_args *args)
 		error = copyout(ifname, (void *)args->arg, IFNAMSIZ);
 		if (error != 0)
 			return (error);
-#ifdef DEBUG
-		printf("%s(): %s translated to %s\n", __func__,
-		    lifname, ifname);
-#endif
 		break;
 
 	default:
@@ -2555,9 +2486,6 @@ linux_ioctl_socket(struct thread *td, struct linux_ioctl_args *args)
 		/* restore the original interface name */
 		copyout(lifname, (void *)args->arg, LINUX_IFNAMSIZ);
 
-#ifdef DEBUG
-	printf("%s(): returning %d\n", __func__, error);
-#endif
 	return (error);
 }
 
@@ -3613,12 +3541,6 @@ linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
 	struct linux_ioctl_handler_element *he;
 	int error, cmd;
 
-#ifdef DEBUG
-	if (ldebug(ioctl))
-		printf(ARGS(ioctl, "%d, %04lx, *"), args->fd,
-		    (unsigned long)args->cmd);
-#endif
-
 	error = fget(td, args->fd, &cap_ioctl_rights, &fp);
 	if (error != 0)
 		return (error);
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 4b7c10bb6a42..a5e1260c86a0 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -200,10 +200,6 @@ linux_alarm(struct thread *td, struct linux_alarm_args *args)
 	u_int secs;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(alarm))
-		printf(ARGS(alarm, "%u"), args->secs);
-#endif
 	secs = args->secs;
 	/*
 	 * Linux alarm() is always successful. Limit secs to INT32_MAX / 2
@@ -235,10 +231,6 @@ linux_brk(struct thread *td, struct linux_brk_args *args)
 	struct vmspace *vm = td->td_proc->p_vmspace;
 	uintptr_t new, old;
 
-#ifdef DEBUG
-	if (ldebug(brk))
-		printf(ARGS(brk, "%p"), (void *)(uintptr_t)args->dsend);
-#endif
 	old = (uintptr_t)vm->vm_daddr + ctob(vm->vm_dsize);
 	new = (uintptr_t)args->dsend;
 	if ((caddr_t)new > vm->vm_daddr && !kern_break(td, &new))
@@ -271,11 +263,6 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
 
 	LCONVPATHEXIST(td, args->library, &library);
 
-#ifdef DEBUG
-	if (ldebug(uselib))
-		printf(ARGS(uselib, "%s"), library);
-#endif
-
 	a_out = NULL;
 	vp = NULL;
 	locked = false;
@@ -416,9 +403,6 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
 	 * (what a waste).
 	 */
 	if (file_offset & PAGE_MASK) {
-#ifdef DEBUG
-		printf("uselib: Non page aligned binary %lu\n", file_offset);
-#endif
 		/* Map text+data read/write/execute */
 
 		/* a_entry is the load address and is page aligned */
@@ -441,9 +425,6 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
 			goto cleanup;
 		}
 	} else {
-#ifdef DEBUG
-		printf("uselib: Page aligned binary %lu\n", file_offset);
-#endif
 		/*
 		 * for QMAGIC, a_entry is 20 bytes beyond the load address
 		 * to skip the executable header
@@ -470,10 +451,7 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
 		vm_map_unlock(map);
 		textset = false;
 	}
-#ifdef DEBUG
-	printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long *)vmaddr)[0],
-	    ((long *)vmaddr)[1]);
-#endif
+
 	if (bss_size != 0) {
 		/* Calculate BSS start address */
 		vmaddr = trunc_page(a_out->a_entry) + a_out->a_text +
@@ -516,13 +494,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
 	struct timeval tv0, tv1, utv, *tvp;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(select))
-		printf(ARGS(select, "%d, %p, %p, %p, %p"), args->nfds,
-		    (void *)args->readfds, (void *)args->writefds,
-		    (void *)args->exceptfds, (void *)args->timeout);
-#endif
-
 	/*
 	 * Store current time for computation of the amount of
 	 * time left.
@@ -532,11 +503,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
 			goto select_out;
 		utv.tv_sec = ltv.tv_sec;
 		utv.tv_usec = ltv.tv_usec;
-#ifdef DEBUG
-		if (ldebug(select))
-			printf(LMSG("incoming timeout (%jd/%ld)"),
-			    (intmax_t)utv.tv_sec, utv.tv_usec);
-#endif
 
 		if (itimerfix(&utv)) {
 			/*
@@ -559,11 +525,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
 
 	error = kern_select(td, args->nfds, args->readfds, args->writefds,
 	    args->exceptfds, tvp, LINUX_NFDBITS);
-
-#ifdef DEBUG
-	if (ldebug(select))
-		printf(LMSG("real select returns %d"), error);
-#endif
 	if (error)
 		goto select_out;
 
@@ -582,11 +543,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
 				timevalclear(&utv);
 		} else
 			timevalclear(&utv);
-#ifdef DEBUG
-		if (ldebug(select))
-			printf(LMSG("outgoing timeout (%jd/%ld)"),
-			    (intmax_t)utv.tv_sec, utv.tv_usec);
-#endif
 		ltv.tv_sec = utv.tv_sec;
 		ltv.tv_usec = utv.tv_usec;
 		if ((error = copyout(&ltv, args->timeout, sizeof(ltv))))
@@ -594,10 +550,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
 	}
 
 select_out:
-#ifdef DEBUG
-	if (ldebug(select))
-		printf(LMSG("select_out -> %d"), error);
-#endif
 	return (error);
 }
 #endif
@@ -609,15 +561,6 @@ linux_mremap(struct thread *td, struct linux_mremap_args *args)
 	size_t len;
 	int error = 0;
 
-#ifdef DEBUG
-	if (ldebug(mremap))
-		printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx"),
-		    (void *)(uintptr_t)args->addr,
-		    (unsigned long)args->old_len,
-		    (unsigned long)args->new_len,
-		    (unsigned long)args->flags);
-#endif
-
 	if (args->flags & ~(LINUX_MREMAP_FIXED | LINUX_MREMAP_MAYMOVE)) {
 		td->td_retval[0] = 0;
 		return (EINVAL);
@@ -670,11 +613,6 @@ linux_time(struct thread *td, struct linux_time_args *args)
 	l_time_t tm;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(time))
-		printf(ARGS(time, "*"));
-#endif
-
 	microtime(&tv);
 	tm = tv.tv_sec;
 	if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
@@ -713,11 +651,6 @@ linux_times(struct thread *td, struct linux_times_args *args)
 	struct proc *p;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(times))
-		printf(ARGS(times, "*"));
-#endif
-
 	if (args->buf != NULL) {
 		p = td->td_proc;
 		PROC_LOCK(p);
@@ -750,11 +683,6 @@ linux_newuname(struct thread *td, struct linux_newuname_args *args)
 	char osrelease[LINUX_MAX_UTSNAME];
 	char *p;
 
-#ifdef DEBUG
-	if (ldebug(newuname))
-		printf(ARGS(newuname, "*"));
-#endif
-
 	linux_get_osname(td, osname);
 	linux_get_osrelease(td, osrelease);
 
@@ -790,11 +718,6 @@ linux_utime(struct thread *td, struct linux_utime_args *args)
 
 	LCONVPATHEXIST(td, args->fname, &fname);
 
-#ifdef DEBUG
-	if (ldebug(utime))
-		printf(ARGS(utime, "%s, *"), fname);
-#endif
-
 	if (args->times) {
 		if ((error = copyin(args->times, &lut, sizeof lut))) {
 			LFREEPATH(fname);
@@ -826,11 +749,6 @@ linux_utimes(struct thread *td, struct linux_utimes_args *args)
 
 	LCONVPATHEXIST(td, args->fname, &fname);
 
-#ifdef DEBUG
-	if (ldebug(utimes))
-		printf(ARGS(utimes, "%s, *"), fname);
-#endif
-
 	if (args->tptr != NULL) {
 		if ((error = copyin(args->tptr, ltv, sizeof ltv))) {
 			LFREEPATH(fname);
@@ -871,11 +789,6 @@ linux_utimensat(struct thread *td, struct linux_utimensat_args *args)
 
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 
-#ifdef DEBUG
-	if (ldebug(utimensat))
-		printf(ARGS(utimensat, "%d, *"), dfd);
-#endif
-
 	if (args->flags & ~LINUX_AT_SYMLINK_NOFOLLOW)
 		return (EINVAL);
 
@@ -955,11 +868,6 @@ linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->filename, &fname, dfd);
 
-#ifdef DEBUG
-	if (ldebug(futimesat))
-		printf(ARGS(futimesat, "%s, *"), fname);
-#endif
-
 	if (args->utimes != NULL) {
 		if ((error = copyin(args->utimes, ltv, sizeof ltv))) {
 			LFREEPATH(fname);
@@ -1010,12 +918,6 @@ linux_waitpid(struct thread *td, struct linux_waitpid_args *args)
 {
 	struct linux_wait4_args wait4_args;
 
-#ifdef DEBUG
-	if (ldebug(waitpid))
-		printf(ARGS(waitpid, "%d, %p, %d"),
-		    args->pid, (void *)args->status, args->options);
-#endif
-
 	wait4_args.pid = args->pid;
 	wait4_args.status = args->status;
 	wait4_args.options = args->options;
@@ -1031,12 +933,6 @@ linux_wait4(struct thread *td, struct linux_wait4_args *args)
 	int error, options;
 	struct rusage ru, *rup;
 
-#ifdef DEBUG
-	if (ldebug(wait4))
-		printf(ARGS(wait4, "%d, %p, %d, %p"),
-		    args->pid, (void *)args->status, args->options,
-		    (void *)args->rusage);
-#endif
 	if (args->options & ~(LINUX_WUNTRACED | LINUX_WNOHANG |
 	    LINUX_WCONTINUED | __WCLONE | __WNOTHREAD | __WALL))
 		return (EINVAL);
@@ -1126,12 +1022,6 @@ linux_mknod(struct thread *td, struct linux_mknod_args *args)
 
 	LCONVPATHCREAT(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(mknod))
-		printf(ARGS(mknod, "%s, %d, %ju"), path, args->mode,
-		    (uintmax_t)args->dev);
-#endif
-
 	switch (args->mode & S_IFMT) {
 	case S_IFIFO:
 	case S_IFSOCK:
@@ -1177,11 +1067,6 @@ linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHCREAT_AT(td, args->filename, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(mknodat))
-		printf(ARGS(mknodat, "%s, %d, %d"), path, args->mode, args->dev);
-#endif
-
 	switch (args->mode & S_IFMT) {
 	case S_IFIFO:
 	case S_IFSOCK:
@@ -1226,11 +1111,6 @@ linux_personality(struct thread *td, struct linux_personality_args *args)
 	struct proc *p = td->td_proc;
 	uint32_t old;
 
-#ifdef DEBUG
-	if (ldebug(personality))
-		printf(ARGS(personality, "%u"), args->per);
-#endif
-
 	PROC_LOCK(p);
 	pem = pem_find(p);
 	old = pem->persona;
@@ -1260,12 +1140,6 @@ linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
 	struct l_itimerval ls;
 	struct itimerval aitv, oitv;
 
-#ifdef DEBUG
-	if (ldebug(setitimer))
-		printf(ARGS(setitimer, "%p, %p"),
-		    (void *)uap->itv, (void *)uap->oitv);
-#endif
-
 	if (uap->itv == NULL) {
 		uap->itv = uap->oitv;
 		return (linux_getitimer(td, (struct linux_getitimer_args *)uap));
@@ -1275,14 +1149,6 @@ linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
 	if (error != 0)
 		return (error);
 	B2L_ITIMERVAL(&aitv, &ls);
-#ifdef DEBUG
-	if (ldebug(setitimer)) {
-		printf("setitimer: value: sec: %jd, usec: %ld\n",
-		    (intmax_t)aitv.it_value.tv_sec, aitv.it_value.tv_usec);
-		printf("setitimer: interval: sec: %jd, usec: %ld\n",
-		    (intmax_t)aitv.it_interval.tv_sec, aitv.it_interval.tv_usec);
-	}
-#endif
 	error = kern_setitimer(td, uap->which, &aitv, &oitv);
 	if (error != 0 || uap->oitv == NULL)
 		return (error);
@@ -1298,10 +1164,6 @@ linux_getitimer(struct thread *td, struct linux_getitimer_args *uap)
 	struct l_itimerval ls;
 	struct itimerval aitv;
 
-#ifdef DEBUG
-	if (ldebug(getitimer))
-		printf(ARGS(getitimer, "%p"), (void *)uap->itv);
-#endif
 	error = kern_getitimer(td, uap->which, &aitv);
 	if (error != 0)
 		return (error);
@@ -1430,12 +1292,6 @@ linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
 	u_int which;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(setrlimit))
-		printf(ARGS(setrlimit, "%d, %p"),
-		    args->resource, (void *)args->rlim);
-#endif
-
 	if (args->resource >= LINUX_RLIM_NLIMITS)
 		return (EINVAL);
 
@@ -1460,12 +1316,6 @@ linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
 	struct rlimit bsd_rlim;
 	u_int which;
 
-#ifdef DEBUG
-	if (ldebug(old_getrlimit))
-		printf(ARGS(old_getrlimit, "%d, %p"),
-		    args->resource, (void *)args->rlim);
-#endif
-
 	if (args->resource >= LINUX_RLIM_NLIMITS)
 		return (EINVAL);
 
@@ -1501,12 +1351,6 @@ linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
 	struct rlimit bsd_rlim;
 	u_int which;
 
-#ifdef DEBUG
-	if (ldebug(getrlimit))
-		printf(ARGS(getrlimit, "%d, %p"),
-		    args->resource, (void *)args->rlim);
-#endif
-
 	if (args->resource >= LINUX_RLIM_NLIMITS)
 		return (EINVAL);
 
@@ -1529,12 +1373,6 @@ linux_sched_setscheduler(struct thread *td,
 	struct thread *tdt;
 	int error, policy;
 
-#ifdef DEBUG
-	if (ldebug(sched_setscheduler))
-		printf(ARGS(sched_setscheduler, "%d, %d, %p"),
-		    args->pid, args->policy, (const void *)args->param);
-#endif
-
 	switch (args->policy) {
 	case LINUX_SCHED_OTHER:
 		policy = SCHED_OTHER;
@@ -1569,11 +1407,6 @@ linux_sched_getscheduler(struct thread *td,
 	struct thread *tdt;
 	int error, policy;
 
-#ifdef DEBUG
-	if (ldebug(sched_getscheduler))
-		printf(ARGS(sched_getscheduler, "%d"), args->pid);
-#endif
-
 	tdt = linux_tdfind(td, args->pid, -1);
 	if (tdt == NULL)
 		return (ESRCH);
@@ -1601,11 +1434,6 @@ linux_sched_get_priority_max(struct thread *td,
 {
 	struct sched_get_priority_max_args bsd;
 
-#ifdef DEBUG
-	if (ldebug(sched_get_priority_max))
-		printf(ARGS(sched_get_priority_max, "%d"), args->policy);
-#endif
-
 	switch (args->policy) {
 	case LINUX_SCHED_OTHER:
 		bsd.policy = SCHED_OTHER;
@@ -1628,11 +1456,6 @@ linux_sched_get_priority_min(struct thread *td,
 {
 	struct sched_get_priority_min_args bsd;
 
-#ifdef DEBUG
-	if (ldebug(sched_get_priority_min))
-		printf(ARGS(sched_get_priority_min, "%d"), args->policy);
-#endif
-
 	switch (args->policy) {
 	case LINUX_SCHED_OTHER:
 		bsd.policy = SCHED_OTHER;
@@ -1665,11 +1488,6 @@ linux_reboot(struct thread *td, struct linux_reboot_args *args)
 {
 	struct reboot_args bsd_args;
 
-#ifdef DEBUG
-	if (ldebug(reboot))
-		printf(ARGS(reboot, "0x%x"), args->cmd);
-#endif
-
 	if (args->magic1 != REBOOT_MAGIC1)
 		return (EINVAL);
 
@@ -1718,10 +1536,6 @@ int
 linux_getpid(struct thread *td, struct linux_getpid_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(getpid))
-		printf(ARGS(getpid, ""));
-#endif
 	td->td_retval[0] = td->td_proc->p_pid;
 
 	return (0);
@@ -1732,11 +1546,6 @@ linux_gettid(struct thread *td, struct linux_gettid_args *args)
 {
 	struct linux_emuldata *em;
 
-#ifdef DEBUG
-	if (ldebug(gettid))
-		printf(ARGS(gettid, ""));
-#endif
-
 	em = em_find(td);
 	KASSERT(em != NULL, ("gettid: emuldata not found.\n"));
 
@@ -1750,11 +1559,6 @@ int
 linux_getppid(struct thread *td, struct linux_getppid_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(getppid))
-		printf(ARGS(getppid, ""));
-#endif
-
 	td->td_retval[0] = kern_getppid(td);
 	return (0);
 }
@@ -1763,11 +1567,6 @@ int
 linux_getgid(struct thread *td, struct linux_getgid_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(getgid))
-		printf(ARGS(getgid, ""));
-#endif
-
 	td->td_retval[0] = td->td_ucred->cr_rgid;
 	return (0);
 }
@@ -1776,11 +1575,6 @@ int
 linux_getuid(struct thread *td, struct linux_getuid_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(getuid))
-		printf(ARGS(getuid, ""));
-#endif
-
 	td->td_retval[0] = td->td_ucred->cr_ruid;
 	return (0);
 }
@@ -1791,11 +1585,6 @@ linux_getsid(struct thread *td, struct linux_getsid_args *args)
 {
 	struct getsid_args bsd;
 
-#ifdef DEBUG
-	if (ldebug(getsid))
-		printf(ARGS(getsid, "%i"), args->pid);
-#endif
-
 	bsd.pid = args->pid;
 	return (sys_getsid(td, &bsd));
 }
@@ -1813,11 +1602,6 @@ linux_getpriority(struct thread *td, struct linux_getpriority_args *args)
 	struct getpriority_args bsd_args;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(getpriority))
-		printf(ARGS(getpriority, "%i, %i"), args->which, args->who);
-#endif
-
 	bsd_args.which = args->which;
 	bsd_args.who = args->who;
 	error = sys_getpriority(td, &bsd_args);
@@ -1830,11 +1614,6 @@ linux_sethostname(struct thread *td, struct linux_sethostname_args *args)
 {
 	int name[2];
 
-#ifdef DEBUG
-	if (ldebug(sethostname))
-		printf(ARGS(sethostname, "*, %i"), args->len);
-#endif
-
 	name[0] = CTL_KERN;
 	name[1] = KERN_HOSTNAME;
 	return (userland_sysctl(td, name, 2, 0, 0, 0, args->hostname,
@@ -1846,11 +1625,6 @@ linux_setdomainname(struct thread *td, struct linux_setdomainname_args *args)
 {
 	int name[2];
 
-#ifdef DEBUG
-	if (ldebug(setdomainname))
-		printf(ARGS(setdomainname, "*, %i"), args->len);
-#endif
-
 	name[0] = CTL_KERN;
 	name[1] = KERN_NISDOMAINNAME;
 	return (userland_sysctl(td, name, 2, 0, 0, 0, args->name,
@@ -1861,11 +1635,6 @@ int
 linux_exit_group(struct thread *td, struct linux_exit_group_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(exit_group))
-		printf(ARGS(exit_group, "%i"), args->error_code);
-#endif
-
 	LINUX_CTR2(exit_group, "thread(%d) (%d)", td->td_tid,
 	    args->error_code);
 
@@ -1916,11 +1685,6 @@ linux_capget(struct thread *td, struct linux_capget_args *uap)
 		u32s = 2;
 		break;
 	default:
-#ifdef DEBUG
-		if (ldebug(capget))
-			printf(LMSG("invalid capget capability version 0x%x"),
-			    luch.version);
-#endif
 		luch.version = _LINUX_CAPABILITY_VERSION_1;
 		error = copyout(&luch, uap->hdrp, sizeof(luch));
 		if (error)
@@ -1968,11 +1732,6 @@ linux_capset(struct thread *td, struct linux_capset_args *uap)
 		u32s = 2;
 		break;
 	default:
-#ifdef DEBUG
-		if (ldebug(capset))
-			printf(LMSG("invalid capset capability version 0x%x"),
-			    luch.version);
-#endif
 		luch.version = _LINUX_CAPABILITY_VERSION_1;
 		error = copyout(&luch, uap->hdrp, sizeof(luch));
 		if (error)
@@ -2011,13 +1770,6 @@ linux_prctl(struct thread *td, struct linux_prctl_args *args)
 	char comm[LINUX_MAX_COMM_LEN];
 	int pdeath_signal;
 
-#ifdef DEBUG
-	if (ldebug(prctl))
-		printf(ARGS(prctl, "%d, %ju, %ju, %ju, %ju"), args->option,
-		    (uintmax_t)args->arg2, (uintmax_t)args->arg3,
-		    (uintmax_t)args->arg4, (uintmax_t)args->arg5);
-#endif
-
 	switch (args->option) {
 	case LINUX_PR_SET_PDEATHSIG:
 		if (!LINUX_SIG_VALID(args->arg2))
@@ -2103,11 +1855,6 @@ linux_sched_setparam(struct thread *td,
 	struct thread *tdt;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sched_setparam))
-		printf(ARGS(sched_setparam, "%d, *"), uap->pid);
-#endif
-
 	error = copyin(uap->param, &sched_param, sizeof(sched_param));
 	if (error)
 		return (error);
@@ -2129,11 +1876,6 @@ linux_sched_getparam(struct thread *td,
 	struct thread *tdt;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sched_getparam))
-		printf(ARGS(sched_getparam, "%d, *"), uap->pid);
-#endif
-
 	tdt = linux_tdfind(td, uap->pid, -1);
 	if (tdt == NULL)
 		return (ESRCH);
@@ -2156,11 +1898,6 @@ linux_sched_getaffinity(struct thread *td,
 	int error;
 	struct thread *tdt;
 
-#ifdef DEBUG
-	if (ldebug(sched_getaffinity))
-		printf(ARGS(sched_getaffinity, "%d, %d, *"), args->pid,
-		    args->len);
-#endif
 	if (args->len < sizeof(cpuset_t))
 		return (EINVAL);
 
@@ -2187,11 +1924,6 @@ linux_sched_setaffinity(struct thread *td,
 {
 	struct thread *tdt;
 
-#ifdef DEBUG
-	if (ldebug(sched_setaffinity))
-		printf(ARGS(sched_setaffinity, "%d, %d, *"), args->pid,
-		    args->len);
-#endif
 	if (args->len < sizeof(cpuset_t))
 		return (EINVAL);
 
@@ -2220,12 +1952,6 @@ linux_prlimit64(struct thread *td, struct linux_prlimit64_args *args)
 	int flags;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(prlimit64))
-		printf(ARGS(prlimit64, "%d, %d, %p, %p"), args->pid,
-		    args->resource, (void *)args->new, (void *)args->old);
-#endif
-
 	if (args->resource >= LINUX_RLIM_NLIMITS)
 		return (EINVAL);
 
@@ -2412,70 +2138,6 @@ linux_ppoll(struct thread *td, struct linux_ppoll_args *args)
 	return (error);
 }
 
-#if defined(DEBUG) || defined(KTR)
-/* XXX: can be removed when every ldebug(...) and KTR stuff are removed. */
-
-#ifdef COMPAT_LINUX32
-#define	L_MAXSYSCALL	LINUX32_SYS_MAXSYSCALL
-#else
-#define	L_MAXSYSCALL	LINUX_SYS_MAXSYSCALL
-#endif
-
-u_char linux_debug_map[howmany(L_MAXSYSCALL, sizeof(u_char))];
-
-static int
-linux_debug(int syscall, int toggle, int global)
-{
-
-	if (global) {
-		char c = toggle ? 0 : 0xff;
-
-		memset(linux_debug_map, c, sizeof(linux_debug_map));
-		return (0);
-	}
-	if (syscall < 0 || syscall >= L_MAXSYSCALL)
-		return (EINVAL);
-	if (toggle)
-		clrbit(linux_debug_map, syscall);
-	else
-		setbit(linux_debug_map, syscall);
-	return (0);
-}
-#undef L_MAXSYSCALL
-
-/*
- * Usage: sysctl linux.debug=<syscall_nr>.<0/1>
- *
- *    E.g.: sysctl linux.debug=21.0
- *
- * As a special case, syscall "all" will apply to all syscalls globally.
- */
-#define LINUX_MAX_DEBUGSTR	16
-int
-linux_sysctl_debug(SYSCTL_HANDLER_ARGS)
-{
-	char value[LINUX_MAX_DEBUGSTR], *p;
-	int error, sysc, toggle;
-	int global = 0;
-
-	value[0] = '\0';
-	error = sysctl_handle_string(oidp, value, LINUX_MAX_DEBUGSTR, req);
-	if (error || req->newptr == NULL)
-		return (error);
-	for (p = value; *p != '\0' && *p != '.'; p++);
-	if (*p == '\0')
-		return (EINVAL);
-	*p++ = '\0';
-	sysc = strtol(value, NULL, 0);
-	toggle = strtol(p, NULL, 0);
-	if (strcmp(value, "all") == 0)
-		global = 1;
-	error = linux_debug(sysc, toggle, global);
-	return (error);
-}
-
-#endif /* DEBUG || KTR */
-
 int
 linux_sched_rr_get_interval(struct thread *td,
     struct linux_sched_rr_get_interval_args *uap)
diff --git a/sys/compat/linux/linux_misc.h b/sys/compat/linux/linux_misc.h
index 0ad46c6ea8f4..8c003cac5a77 100644
--- a/sys/compat/linux/linux_misc.h
+++ b/sys/compat/linux/linux_misc.h
@@ -156,6 +156,4 @@ int linux_set_upcall_kse(struct thread *td, register_t stack);
 int linux_set_cloned_tls(struct thread *td, void *desc);
 struct thread	*linux_tdfind(struct thread *, lwpid_t, pid_t);
 
-int linux_sysctl_debug(SYSCTL_HANDLER_ARGS);
-
 #endif	/* _LINUX_MISC_H_ */
diff --git a/sys/compat/linux/linux_signal.c b/sys/compat/linux/linux_signal.c
index 65fb26d8ce9f..441a03613d0c 100644
--- a/sys/compat/linux/linux_signal.c
+++ b/sys/compat/linux/linux_signal.c
@@ -146,12 +146,6 @@ linux_signal(struct thread *td, struct linux_signal_args *args)
 	l_sigaction_t nsa, osa;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(signal))
-		printf(ARGS(signal, "%d, %p"),
-		    args->sig, (void *)(uintptr_t)args->handler);
-#endif
-
 	nsa.lsa_handler = args->handler;
 	nsa.lsa_flags = LINUX_SA_ONESHOT | LINUX_SA_NOMASK;
 	LINUX_SIGEMPTYSET(nsa.lsa_mask);
@@ -169,13 +163,6 @@ linux_rt_sigaction(struct thread *td, struct linux_rt_sigaction_args *args)
 	l_sigaction_t nsa, osa;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigaction))
-		printf(ARGS(rt_sigaction, "%ld, %p, %p, %ld"),
-		    (long)args->sig, (void *)args->act,
-		    (void *)args->oact, (long)args->sigsetsize);
-#endif
-
 	if (args->sigsetsize != sizeof(l_sigset_t))
 		return (EINVAL);
 
@@ -239,11 +226,6 @@ linux_sigprocmask(struct thread *td, struct linux_sigprocmask_args *args)
 	l_sigset_t set, oset;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sigprocmask))
-		printf(ARGS(sigprocmask, "%d, *, *"), args->how);
-#endif
-
 	if (args->mask != NULL) {
 		error = copyin(args->mask, &mask, sizeof(l_osigset_t));
 		if (error)
@@ -271,13 +253,6 @@ linux_rt_sigprocmask(struct thread *td, struct linux_rt_sigprocmask_args *args)
 	l_sigset_t set, oset;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigprocmask))
-		printf(ARGS(rt_sigprocmask, "%d, %p, %p, %ld"),
-		    args->how, (void *)args->mask,
-		    (void *)args->omask, (long)args->sigsetsize);
-#endif
-
 	if (args->sigsetsize != sizeof(l_sigset_t))
 		return (EINVAL);
 
@@ -305,11 +280,6 @@ linux_sgetmask(struct thread *td, struct linux_sgetmask_args *args)
 	struct proc *p = td->td_proc;
 	l_sigset_t mask;
 
-#ifdef DEBUG
-	if (ldebug(sgetmask))
-		printf(ARGS(sgetmask, ""));
-#endif
-
 	PROC_LOCK(p);
 	bsd_to_linux_sigset(&td->td_sigmask, &mask);
 	PROC_UNLOCK(p);
@@ -324,11 +294,6 @@ linux_ssetmask(struct thread *td, struct linux_ssetmask_args *args)
 	l_sigset_t lset;
 	sigset_t bset;
 
-#ifdef DEBUG
-	if (ldebug(ssetmask))
-		printf(ARGS(ssetmask, "%08lx"), (unsigned long)args->mask);
-#endif
-
 	PROC_LOCK(p);
 	bsd_to_linux_sigset(&td->td_sigmask, &lset);
 	td->td_retval[0] = lset.__mask;
@@ -350,11 +315,6 @@ linux_sigpending(struct thread *td, struct linux_sigpending_args *args)
 	l_sigset_t lset;
 	l_osigset_t mask;
 
-#ifdef DEBUG
-	if (ldebug(sigpending))
-		printf(ARGS(sigpending, "*"));
-#endif
-
 	PROC_LOCK(p);
 	bset = p->p_siglist;
 	SIGSETOR(bset, td->td_siglist);
@@ -380,11 +340,6 @@ linux_rt_sigpending(struct thread *td, struct linux_rt_sigpending_args *args)
 		return (EINVAL);
 		/* NOT REACHED */
 
-#ifdef DEBUG
-	if (ldebug(rt_sigpending))
-		printf(ARGS(rt_sigpending, "*"));
-#endif
-
 	PROC_LOCK(p);
 	bset = p->p_siglist;
 	SIGSETOR(bset, td->td_siglist);
@@ -410,10 +365,6 @@ linux_rt_sigtimedwait(struct thread *td,
 	l_siginfo_t linfo;
 	ksiginfo_t info;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigtimedwait))
-		printf(ARGS(rt_sigtimedwait, "*"));
-#endif
 	if (args->sigsetsize != sizeof(l_sigset_t))
 		return (EINVAL);
 
@@ -425,12 +376,6 @@ linux_rt_sigtimedwait(struct thread *td,
 	if (args->timeout) {
 		if ((error = copyin(args->timeout, &ltv, sizeof(ltv))))
 			return (error);
-#ifdef DEBUG
-		if (ldebug(rt_sigtimedwait))
-			printf(LMSG("linux_rt_sigtimedwait: "
-			    "incoming timeout (%jd/%jd)\n"),
-			    (intmax_t)ltv.tv_sec, (intmax_t)ltv.tv_usec);
-#endif
 		tv.tv_sec = (long)ltv.tv_sec;
 		tv.tv_usec = (suseconds_t)ltv.tv_usec;
 		if (itimerfix(&tv)) {
@@ -446,22 +391,11 @@ linux_rt_sigtimedwait(struct thread *td,
 			}
 			if (tv.tv_sec < 0)
 				timevalclear(&tv);
-#ifdef DEBUG
-			if (ldebug(rt_sigtimedwait))
-				printf(LMSG("linux_rt_sigtimedwait: "
-				    "converted timeout (%jd/%ld)\n"),
-				    (intmax_t)tv.tv_sec, tv.tv_usec);
-#endif
 		}
 		TIMEVAL_TO_TIMESPEC(&tv, &ts);
 		tsa = &ts;
 	}
 	error = kern_sigtimedwait(td, bset, &info, tsa);
-#ifdef DEBUG
-	if (ldebug(rt_sigtimedwait))
-		printf(LMSG("linux_rt_sigtimedwait: "
-		    "sigtimedwait returning (%d)\n"), error);
-#endif
 	if (error)
 		return (error);
 
@@ -486,11 +420,6 @@ linux_kill(struct thread *td, struct linux_kill_args *args)
 	    int signum;
 	} */ tmp;
 
-#ifdef DEBUG
-	if (ldebug(kill))
-		printf(ARGS(kill, "%d, %d"), args->pid, args->signum);
-#endif
-
 	/*
 	 * Allow signal 0 as a means to check for privileges
 	 */
@@ -535,12 +464,6 @@ linux_tgkill(struct thread *td, struct linux_tgkill_args *args)
 	ksiginfo_t ksi;
 	int sig;
 
-#ifdef DEBUG
-	if (ldebug(tgkill))
-		printf(ARGS(tgkill, "%d, %d, %d"),
-		    args->tgid, args->pid, args->sig);
-#endif
-
 	if (args->pid <= 0 || args->tgid <=0)
 		return (EINVAL);
 
@@ -578,10 +501,6 @@ linux_tkill(struct thread *td, struct linux_tkill_args *args)
 	ksiginfo_t ksi;
 	int sig;
 
-#ifdef DEBUG
-	if (ldebug(tkill))
-		printf(ARGS(tkill, "%i, %i"), args->tid, args->sig);
-#endif
 	if (args->tid <= 0)
 		return (EINVAL);
 
diff --git a/sys/compat/linux/linux_stats.c b/sys/compat/linux/linux_stats.c
index e19008610622..0f43481e86c4 100644
--- a/sys/compat/linux/linux_stats.c
+++ b/sys/compat/linux/linux_stats.c
@@ -185,11 +185,6 @@ linux_newstat(struct thread *td, struct linux_newstat_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(newstat))
-		printf(ARGS(newstat, "%s, *"), path);
-#endif
-
 	error = linux_kern_stat(td, path, UIO_SYSSPACE, &buf);
 	LFREEPATH(path);
 	if (error)
@@ -206,11 +201,6 @@ linux_newlstat(struct thread *td, struct linux_newlstat_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(newlstat))
-		printf(ARGS(newlstat, "%s, *"), path);
-#endif
-
 	error = linux_kern_lstat(td, path, UIO_SYSSPACE, &sb);
 	LFREEPATH(path);
 	if (error)
@@ -225,11 +215,6 @@ linux_newfstat(struct thread *td, struct linux_newfstat_args *args)
 	struct stat buf;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(newfstat))
-		printf(ARGS(newfstat, "%d, *"), args->fd);
-#endif
-
 	error = kern_fstat(td, args->fd, &buf);
 	translate_fd_major_minor(td, args->fd, &buf);
 	if (!error)
@@ -276,10 +261,6 @@ linux_stat(struct thread *td, struct linux_stat_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(stat))
-		printf(ARGS(stat, "%s, *"), path);
-#endif
 	error = linux_kern_stat(td, path, UIO_SYSSPACE, &buf);
 	if (error) {
 		LFREEPATH(path);
@@ -298,10 +279,6 @@ linux_lstat(struct thread *td, struct linux_lstat_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(lstat))
-		printf(ARGS(lstat, "%s, *"), path);
-#endif
 	error = linux_kern_lstat(td, path, UIO_SYSSPACE, &buf);
 	if (error) {
 		LFREEPATH(path);
@@ -411,10 +388,6 @@ linux_statfs(struct thread *td, struct linux_statfs_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(statfs))
-		printf(ARGS(statfs, "%s, *"), path);
-#endif
 	bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
 	error = kern_statfs(td, path, UIO_SYSSPACE, bsd_statfs);
 	LFREEPATH(path);
@@ -459,10 +432,6 @@ linux_statfs64(struct thread *td, struct linux_statfs64_args *args)
 
 	LCONVPATHEXIST(td, args->path, &path);
 
-#ifdef DEBUG
-	if (ldebug(statfs64))
-		printf(ARGS(statfs64, "%s, *"), path);
-#endif
 	bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
 	error = kern_statfs(td, path, UIO_SYSSPACE, bsd_statfs);
 	LFREEPATH(path);
@@ -481,10 +450,6 @@ linux_fstatfs64(struct thread *td, struct linux_fstatfs64_args *args)
 	struct statfs *bsd_statfs;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(fstatfs64))
-		printf(ARGS(fstatfs64, "%d, *"), args->fd);
-#endif
 	if (args->bufsize != sizeof(struct l_statfs64))
 		return (EINVAL);
 
@@ -506,10 +471,6 @@ linux_fstatfs(struct thread *td, struct linux_fstatfs_args *args)
 	struct statfs *bsd_statfs;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(fstatfs))
-		printf(ARGS(fstatfs, "%d, *"), args->fd);
-#endif
 	bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
 	error = kern_fstatfs(td, args->fd, bsd_statfs);
 	if (error == 0)
@@ -532,10 +493,6 @@ struct l_ustat
 int
 linux_ustat(struct thread *td, struct linux_ustat_args *args)
 {
-#ifdef DEBUG
-	if (ldebug(ustat))
-		printf(ARGS(ustat, "%ju, *"), (uintmax_t)args->dev);
-#endif
 
 	return (EOPNOTSUPP);
 }
@@ -586,11 +543,6 @@ linux_stat64(struct thread *td, struct linux_stat64_args *args)
 
 	LCONVPATHEXIST(td, args->filename, &filename);
 
-#ifdef DEBUG
-	if (ldebug(stat64))
-		printf(ARGS(stat64, "%s, *"), filename);
-#endif
-
 	error = linux_kern_stat(td, filename, UIO_SYSSPACE, &buf);
 	LFREEPATH(filename);
 	if (error)
@@ -607,11 +559,6 @@ linux_lstat64(struct thread *td, struct linux_lstat64_args *args)
 
 	LCONVPATHEXIST(td, args->filename, &filename);
 
-#ifdef DEBUG
-	if (ldebug(lstat64))
-		printf(ARGS(lstat64, "%s, *"), args->filename);
-#endif
-
 	error = linux_kern_lstat(td, filename, UIO_SYSSPACE, &sb);
 	LFREEPATH(filename);
 	if (error)
@@ -625,11 +572,6 @@ linux_fstat64(struct thread *td, struct linux_fstat64_args *args)
 	struct stat buf;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(fstat64))
-		printf(ARGS(fstat64, "%d, *"), args->fd);
-#endif
-
 	error = kern_fstat(td, args->fd, &buf);
 	translate_fd_major_minor(td, args->fd, &buf);
 	if (!error)
@@ -653,11 +595,6 @@ linux_fstatat64(struct thread *td, struct linux_fstatat64_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(fstatat64))
-		printf(ARGS(fstatat64, "%i, %s, %i"), args->dfd, path, args->flag);
-#endif
-
 	error = linux_kern_statat(td, flag, dfd, path, UIO_SYSSPACE, &buf);
 	if (!error)
 		error = stat64_copyout(&buf, args->statbuf);
@@ -683,11 +620,6 @@ linux_newfstatat(struct thread *td, struct linux_newfstatat_args *args)
 	dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
 	LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
 
-#ifdef DEBUG
-	if (ldebug(newfstatat))
-		printf(ARGS(newfstatat, "%i, %s, %i"), args->dfd, path, args->flag);
-#endif
-
 	error = linux_kern_statat(td, flag, dfd, path, UIO_SYSSPACE, &buf);
 	if (error == 0)
 		error = newstat_copyout(&buf, args->statbuf);
diff --git a/sys/i386/linux/linux.h b/sys/i386/linux/linux.h
index 97b5215b0db2..f1de1928680c 100644
--- a/sys/i386/linux/linux.h
+++ b/sys/i386/linux/linux.h
@@ -37,15 +37,6 @@
 
 #define LINUX_LEGACY_SYSCALLS
 
-/*
- * debugging support
- */
-extern u_char linux_debug_map[];
-#define	ldebug(name)	isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
-#define	ARGS(nm, fmt)	"linux(%ld/%ld): "#nm"("fmt")\n",			\
-			(long)td->td_proc->p_pid, (long)td->td_tid
-#define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
-			(long)td->td_proc->p_pid, (long)td->td_tid
 #define	LINUX_DTRACE	linuxulator
 
 #define	LINUX_SHAREDPAGE	(VM_MAXUSER_ADDRESS - PAGE_SIZE)
diff --git a/sys/i386/linux/linux_machdep.c b/sys/i386/linux/linux_machdep.c
index 0753986182b4..79db342881cc 100644
--- a/sys/i386/linux/linux_machdep.c
+++ b/sys/i386/linux/linux_machdep.c
@@ -106,11 +106,6 @@ linux_execve(struct thread *td, struct linux_execve_args *args)
 
 	LCONVPATHEXIST(td, args->path, &newpath);
 
-#ifdef DEBUG
-	if (ldebug(execve))
-		printf(ARGS(execve, "%s"), newpath);
-#endif
-
 	error = exec_copyin_args(&eargs, newpath, UIO_SYSSPACE,
 	    args->argp, args->envp);
 	free(newpath, M_TEMP);
@@ -256,11 +251,6 @@ linux_old_select(struct thread *td, struct linux_old_select_args *args)
 	struct linux_select_args newsel;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(old_select))
-		printf(ARGS(old_select, "%p"), args->ptr);
-#endif
-
 	error = copyin(args->ptr, &linux_args, sizeof(linux_args));
 	if (error)
 		return (error);
@@ -283,7 +273,7 @@ linux_set_cloned_tls(struct thread *td, void *desc)
 
 	error = copyin(desc, &info, sizeof(struct l_user_desc));
 	if (error) {
-		printf(LMSG("copyin failed!"));
+		linux_msg(td, "set_cloned_tls copyin failed!");
 	} else {
 		idx = info.entry_number;
 
@@ -292,7 +282,7 @@ linux_set_cloned_tls(struct thread *td, void *desc)
 		 * in the set_thread_area() syscall
 		 */
 		if (idx != 6 && idx != 3) {
-			printf(LMSG("resetting idx!"));
+			linux_msg(td, "set_cloned_tls resetting idx!");
 			idx = 3;
 		}
 
@@ -302,25 +292,13 @@ linux_set_cloned_tls(struct thread *td, void *desc)
 			info.entry_number = 3;
 			error = copyout(&info, desc, sizeof(struct l_user_desc));
 			if (error)
-				printf(LMSG("copyout failed!"));
+				linux_msg(td, "set_cloned_tls copyout failed!");
 		}
 
 		a[0] = LINUX_LDT_entry_a(&info);
 		a[1] = LINUX_LDT_entry_b(&info);
 
 		memcpy(&sd, &a, sizeof(a));
-#ifdef DEBUG
-		if (ldebug(clone))
-			printf("Segment created in clone with "
-			"CLONE_SETTLS: lobase: %x, hibase: %x, "
-			"lolimit: %x, hilimit: %x, type: %i, "
-			"dpl: %i, p: %i, xx: %i, def32: %i, "
-			"gran: %i\n", sd.sd_lobase, sd.sd_hibase,
-			sd.sd_lolimit, sd.sd_hilimit, sd.sd_type,
-			sd.sd_dpl, sd.sd_p, sd.sd_xx,
-			sd.sd_def32, sd.sd_gran);
-#endif
-
 		/* set %gs */
 		td->td_pcb->pcb_gsd = sd;
 		td->td_pcb->pcb_gs = GSEL(GUGS_SEL, SEL_UPL);
@@ -348,13 +326,6 @@ int
 linux_mmap2(struct thread *td, struct linux_mmap2_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(mmap2))
-		printf(ARGS(mmap2, "%p, %d, %d, 0x%08x, %d, %d"),
-		    (void *)args->addr, args->len, args->prot,
-		    args->flags, args->fd, args->pgoff);
-#endif
-
 	return (linux_mmap_common(td, args->addr, args->len, args->prot,
 		args->flags, args->fd, (uint64_t)(uint32_t)args->pgoff *
 		PAGE_SIZE));
@@ -370,13 +341,6 @@ linux_mmap(struct thread *td, struct linux_mmap_args *args)
 	if (error)
 		return (error);
 
-#ifdef DEBUG
-	if (ldebug(mmap))
-		printf(ARGS(mmap, "%p, %d, %d, 0x%08x, %d, %d"),
-		    (void *)linux_args.addr, linux_args.len, linux_args.prot,
-		    linux_args.flags, linux_args.fd, linux_args.pgoff);
-#endif
-
 	return (linux_mmap_common(td, linux_args.addr, linux_args.len,
 	    linux_args.prot, linux_args.flags, linux_args.fd,
 	    (uint32_t)linux_args.pgoff));
@@ -474,7 +438,7 @@ linux_modify_ldt(struct thread *td, struct linux_modify_ldt_args *uap)
 	}
 
 	if (error == EOPNOTSUPP) {
-		printf("linux: modify_ldt needs kernel option USER_LDT\n");
+		linux_msg(td, "modify_ldt needs kernel option USER_LDT");
 		error = ENOSYS;
 	}
 
@@ -488,12 +452,6 @@ linux_sigaction(struct thread *td, struct linux_sigaction_args *args)
 	l_sigaction_t act, oact;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sigaction))
-		printf(ARGS(sigaction, "%d, %p, %p"),
-		    args->sig, (void *)args->nsa, (void *)args->osa);
-#endif
-
 	if (args->nsa != NULL) {
 		error = copyin(args->nsa, &osa, sizeof(l_osigaction_t));
 		if (error)
@@ -530,11 +488,6 @@ linux_sigsuspend(struct thread *td, struct linux_sigsuspend_args *args)
 	sigset_t sigmask;
 	l_sigset_t mask;
 
-#ifdef DEBUG
-	if (ldebug(sigsuspend))
-		printf(ARGS(sigsuspend, "%08lx"), (unsigned long)args->mask);
-#endif
-
 	LINUX_SIGEMPTYSET(mask);
 	mask.__mask = args->mask;
 	linux_to_bsd_sigset(&mask, &sigmask);
@@ -548,12 +501,6 @@ linux_rt_sigsuspend(struct thread *td, struct linux_rt_sigsuspend_args *uap)
 	sigset_t sigmask;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigsuspend))
-		printf(ARGS(rt_sigsuspend, "%p, %d"),
-		    (void *)uap->newset, uap->sigsetsize);
-#endif
-
 	if (uap->sigsetsize != sizeof(l_sigset_t))
 		return (EINVAL);
 
@@ -571,11 +518,6 @@ linux_pause(struct thread *td, struct linux_pause_args *args)
 	struct proc *p = td->td_proc;
 	sigset_t sigmask;
 
-#ifdef DEBUG
-	if (ldebug(pause))
-		printf(ARGS(pause, ""));
-#endif
-
 	PROC_LOCK(p);
 	sigmask = td->td_sigmask;
 	PROC_UNLOCK(p);
@@ -589,11 +531,6 @@ linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap)
 	l_stack_t lss;
 	int error;
 
-#ifdef DEBUG
-	if (ldebug(sigaltstack))
-		printf(ARGS(sigaltstack, "%p, %p"), uap->uss, uap->uoss);
-#endif
-
 	if (uap->uss != NULL) {
 		error = copyin(uap->uss, &lss, sizeof(l_stack_t));
 		if (error)
@@ -619,12 +556,6 @@ int
 linux_ftruncate64(struct thread *td, struct linux_ftruncate64_args *args)
 {
 
-#ifdef DEBUG
-	if (ldebug(ftruncate64))
-		printf(ARGS(ftruncate64, "%u, %jd"), args->fd,
-		    (intmax_t)args->length);
-#endif
-
 	return (kern_ftruncate(td, args->fd, args->length));
 }
 
@@ -641,20 +572,6 @@ linux_set_thread_area(struct thread *td, struct linux_set_thread_area_args *args
 	if (error)
 		return (error);
 
-#ifdef DEBUG
-	if (ldebug(set_thread_area))
-		printf(ARGS(set_thread_area, "%i, %x, %x, %i, %i, %i, %i, %i, %i\n"),
-		      info.entry_number,
-		      info.base_addr,
-		      info.limit,
-		      info.seg_32bit,
-		      info.contents,
-		      info.read_exec_only,
-		      info.limit_in_pages,
-		      info.seg_not_present,
-		      info.useable);
-#endif
-
 	idx = info.entry_number;
 	/*
 	 * Semantics of Linux version: every thread in the system has array of
@@ -703,20 +620,6 @@ linux_set_thread_area(struct thread *td, struct linux_set_thread_area_args *args
 	}
 
 	memcpy(&sd, &a, sizeof(a));
-#ifdef DEBUG
-	if (ldebug(set_thread_area))
-		printf("Segment created in set_thread_area: lobase: %x, hibase: %x, lolimit: %x, hilimit: %x, type: %i, dpl: %i, p: %i, xx: %i, def32: %i, gran: %i\n", sd.sd_lobase,
-			sd.sd_hibase,
-			sd.sd_lolimit,
-			sd.sd_hilimit,
-			sd.sd_type,
-			sd.sd_dpl,
-			sd.sd_p,
-			sd.sd_xx,
-			sd.sd_def32,
-			sd.sd_gran);
-#endif
-
 	/* this is taken from i386 version of cpu_set_user_tls() */
 	critical_enter();
 	/* set %gs */
@@ -738,11 +641,6 @@ linux_get_thread_area(struct thread *td, struct linux_get_thread_area_args *args
 	struct l_desc_struct desc;
 	struct segment_descriptor sd;
 
-#ifdef DEBUG
-	if (ldebug(get_thread_area))
-		printf(ARGS(get_thread_area, "%p"), args->desc);
-#endif
-
 	error = copyin(args->desc, &info, sizeof(struct l_user_desc));
 	if (error)
 		return (error);
diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c
index 05b24ef22d53..26b78c2e93d4 100644
--- a/sys/i386/linux/linux_sysvec.c
+++ b/sys/i386/linux/linux_sysvec.c
@@ -77,19 +77,6 @@ __FBSDID("$FreeBSD$");
 
 MODULE_VERSION(linux, 1);
 
-#if defined(DEBUG)
-SYSCTL_PROC(_compat_linux, OID_AUTO, debug, CTLTYPE_STRING | CTLFLAG_RW, 0, 0,
-    linux_sysctl_debug, "A", "Linux debugging control");
-#endif
-
-/*
- * Allow the sendsig functions to use the ldebug() facility even though they
- * are not syscalls themselves.  Map them to syscall 0.  This is slightly less
- * bogus than using ldebug(sigreturn).
- */
-#define	LINUX_SYS_linux_rt_sendsig	0
-#define	LINUX_SYS_linux_sendsig		0
-
 #define	LINUX_PS_STRINGS	(LINUX_USRSTACK - sizeof(struct ps_strings))
 
 static int linux_szsigcode;
@@ -395,11 +382,6 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	regs = td->td_frame;
 	oonstack = sigonstack(regs->tf_esp);
 
-#ifdef DEBUG
-	if (ldebug(rt_sendsig))
-		printf(ARGS(rt_sendsig, "%p, %d, %p, %u"),
-		    catcher, sig, (void*)mask, code);
-#endif
 	/* Allocate space for the signal handler context. */
 	if ((td->td_pflags & TDP_ALTSTACK) && !oonstack &&
 	    SIGISMEMBER(psp->ps_sigonstack, sig)) {
@@ -456,23 +438,11 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	frame.sf_sc.uc_mcontext.sc_cr2    = (register_t)ksi->ksi_addr;
 	frame.sf_sc.uc_mcontext.sc_trapno = bsd_to_linux_trapcode(code);
 
-#ifdef DEBUG
-	if (ldebug(rt_sendsig))
-		printf(LMSG("rt_sendsig flags: 0x%x, sp: %p, ss: 0x%x, mask: 0x%x"),
-		    frame.sf_sc.uc_stack.ss_flags, td->td_sigstk.ss_sp,
-		    td->td_sigstk.ss_size, frame.sf_sc.uc_mcontext.sc_mask);
-#endif
-
 	if (copyout(&frame, fp, sizeof(frame)) != 0) {
 		/*
 		 * Process has trashed its stack; give it an illegal
 		 * instruction to halt it in its tracks.
 		 */
-#ifdef DEBUG
-		if (ldebug(rt_sendsig))
-			printf(LMSG("rt_sendsig: bad stack %p, oonstack=%x"),
-			    fp, oonstack);
-#endif
 		PROC_LOCK(p);
 		sigexit(td, SIGILL);
 	}
@@ -526,12 +496,6 @@ linux_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	regs = td->td_frame;
 	oonstack = sigonstack(regs->tf_esp);
 
-#ifdef DEBUG
-	if (ldebug(sendsig))
-		printf(ARGS(sendsig, "%p, %d, %p, %u"),
-		    catcher, sig, (void*)mask, code);
-#endif
-
 	/* Allocate space for the signal handler context. */
 	if ((td->td_pflags & TDP_ALTSTACK) && !oonstack &&
 	    SIGISMEMBER(psp->ps_sigonstack, sig)) {
@@ -621,10 +585,6 @@ linux_sigreturn(struct thread *td, struct linux_sigreturn_args *args)
 
 	regs = td->td_frame;
 
-#ifdef DEBUG
-	if (ldebug(sigreturn))
-		printf(ARGS(sigreturn, "%p"), (void *)args->sfp);
-#endif
 	/*
 	 * The trampoline code hands us the sigframe.
 	 * It is unsafe to keep track of it ourselves, in the event that a
@@ -704,10 +664,6 @@ linux_rt_sigreturn(struct thread *td, struct linux_rt_sigreturn_args *args)
 
 	regs = td->td_frame;
 
-#ifdef DEBUG
-	if (ldebug(rt_sigreturn))
-		printf(ARGS(rt_sigreturn, "%p"), (void *)args->ucp);
-#endif
 	/*
 	 * The trampoline code hands us the ucontext.
 	 * It is unsafe to keep track of it ourselves, in the event that a
@@ -767,11 +723,6 @@ linux_rt_sigreturn(struct thread *td, struct linux_rt_sigreturn_args *args)
 	ss.ss_size = lss->ss_size;
 	ss.ss_flags = linux_to_bsd_sigaltstack(lss->ss_flags);
 
-#ifdef DEBUG
-	if (ldebug(rt_sigreturn))
-		printf(LMSG("rt_sigret flags: 0x%x, sp: %p, ss: 0x%x, mask: 0x%x"),
-		    ss.ss_flags, ss.ss_sp, ss.ss_size, context->sc_mask);
-#endif
 	(void)kern_sigaltstack(td, &ss, NULL);
 
 	return (EJUSTRETURN);
diff --git a/sys/modules/linux/Makefile b/sys/modules/linux/Makefile
index 93ce542759c4..fff940db5de0 100644
--- a/sys/modules/linux/Makefile
+++ b/sys/modules/linux/Makefile
@@ -80,13 +80,4 @@ ${VDSO}.so: linux${SFX}_locore.o
 linux${SFX}_genassym.o: offset.inc
 	${CC} -c ${CFLAGS:N-flto:N-fno-common} ${.IMPSRC}
 
-.if !defined(KERNBUILDDIR)
-.if defined(KTR)
-CFLAGS+=	-DKTR
-.endif
-.if defined(DEBUG)
-CFLAGS+=	-DDEBUG
-.endif
-.endif
-
 .include <bsd.kmod.mk>
diff --git a/sys/modules/linux64/Makefile b/sys/modules/linux64/Makefile
index e12059f07a4e..8d4bbfa64f4f 100644
--- a/sys/modules/linux64/Makefile
+++ b/sys/modules/linux64/Makefile
@@ -55,13 +55,4 @@ linux_support.o: assym.inc linux_assym.h
 linux_genassym.o: offset.inc
 	${CC} -c ${CFLAGS:N-flto:N-fno-common} ${.IMPSRC}
 
-.if !defined(KERNBUILDDIR)
-.if defined(DEBUG)
-CFLAGS+=-DDEBUG
-.endif
-.if defined(KTR)
-CFLAGS+=-DKTR
-.endif
-.endif
-
 .include <bsd.kmod.mk>
diff --git a/sys/modules/linux_common/Makefile b/sys/modules/linux_common/Makefile
index e8dbbb73ad01..9fb0210810fb 100644
--- a/sys/modules/linux_common/Makefile
+++ b/sys/modules/linux_common/Makefile
@@ -15,13 +15,4 @@ EXPORT_SYMS+=	linux_ioctl_unregister_handler
 EXPORT_SYMS+=	linux_get_osname
 EXPORT_SYMS+=	linux_get_osrelease
 
-.if !defined(KERNBUILDDIR)
-.if defined(DEBUG)
-CFLAGS+=-DDEBUG
-.endif
-.if defined(KTR)
-CFLAGS+=-DKTR
-.endif
-.endif
-
 .include <bsd.kmod.mk>