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freebsd-nq/sys/kern
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Matthew D Fleming d7854da193 Add MALLOC_DEBUG_MAXZONES debug malloc(9) option to use multiple uma 
zones for each malloc bucket size.  The purpose is to isolate
different malloc types into hash classes, so that any buffer overruns
or use-after-free will usually only affect memory from malloc types in
that hash class.  This is purely a debugging tool; by varying the hash
function and tracking which hash class was corrupted, the intersection
of the hash classes from each instance will point to a single malloc
type that is being misused.  At this point inspection or memguard(9)
can be used to catch the offending code.

Add MALLOC_DEBUG_MAXZONES=8 to -current GENERIC configuration files.
The suggestion to have this on by default came from Kostik Belousov on
-arch.

This code is based on work by Ron Steinke at Isilon Systems.

Reviewed by:    -arch (mostly silence)
Reviewed by:    zml
Approved by:    zml (mentor)
2010-07-28 15:36:12 +00:00
..
bus_if.m Virtualize pci_remap_msi_irq() call from general MSI code. It allows MSI 2010-06-14 07:10:37 +00:00
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
imgact_aout.c Reorganize syscall entry and leave handling. 2010-05-23 18:32:02 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Don't leak core_buf or gzfile if doing a compressed core file and we 2010-04-30 03:13:24 +00:00
imgact_gzip.c
imgact_shell.c Introduce exec_alloc_args(). The objective being to encapsulate the 2010-07-27 17:31:03 +00:00
inflate.c
init_main.c Remove spurious '/*-' marks and fix some other style problems. 2010-07-22 05:42:29 +00:00
init_sysent.c Regenerate 2010-06-28 18:17:21 +00:00
kern_acct.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_alq.c - Rework the underlying ALQ storage to be a circular buffer, which amongst other 2010-04-26 13:48:22 +00:00
kern_clock.c - Simplify logic in handling ticks wrap-up 2010-07-07 12:00:11 +00:00
kern_clocksource.c Fix several un-/signedness bugs of r210290 and r210293. Add one more check. 2010-07-20 15:48:29 +00:00
kern_condvar.c
kern_conf.c Remove the unit argument from the recently added make_dev_p(). 2010-06-17 08:49:31 +00:00
kern_cons.c
kern_context.c Move prototypes for kern_sigtimedwait() and kern_sigprocmask() to 2010-06-30 18:03:42 +00:00
kern_cpu.c cpufreq: allocate long-lived buffer for handling of sysctl requests 2010-07-23 16:46:42 +00:00
kern_cpuset.c
kern_ctf.c
kern_descrip.c Remove one zero from the double-0. 2010-04-23 14:32:58 +00:00
kern_dtrace.c
kern_environment.c
kern_et.c Use proper sysctl type (quad) for et_frequency. It fixes output on sparc64. 2010-07-21 12:23:49 +00:00
kern_event.c Defer freeing a kevent list until after dropping kqueue locks. 2010-03-30 18:31:55 +00:00
kern_exec.c The interpreter name should no longer be treated as a buffer that can be 2010-07-28 04:47:40 +00:00
kern_exit.c Tweak the in-kernel API for sending signals to threads: 2010-06-29 20:41:52 +00:00
kern_fail.c
kern_fork.c
kern_gzio.c Do not set IO_NODELOCKED while writing to vnodes as our consumers 2010-04-30 03:10:53 +00:00
kern_idle.c
kern_intr.c Store interrupt trap frame into struct thread. It allows interrupt handler 2010-06-10 16:14:05 +00:00
kern_jail.c Declare ip6 as (struct in6_addr *) instead of (struct in_addr *). This is 2010-06-04 14:38:24 +00:00
kern_kthread.c Allow a const char * to be passed as the process name to kproc_kthread_add() 2010-05-21 17:14:36 +00:00
kern_ktr.c Probabilly defaulting to KTR_GEN is not the right decision when KTR_MASK 2010-07-21 10:14:04 +00:00
kern_ktrace.c - Document layout of KTR_STRUCT payload in a comment. 2010-07-14 17:38:01 +00:00
kern_linker.c
kern_lock.c
kern_lockf.c
kern_lockstat.c
kern_malloc.c Add MALLOC_DEBUG_MAXZONES debug malloc(9) option to use multiple uma 2010-07-28 15:36:12 +00:00
kern_mbuf.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_mib.c When compat32 binary asks for the value of hw.machine_arch, report the 2010-07-22 09:13:49 +00:00
kern_module.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_mtxpool.c
kern_mutex.c Right now, WITNESS just blindly pipes all the output to the 2010-05-11 18:24:22 +00:00
kern_ntptime.c kern_ntptime: drop a comment that became stale after r207359 2010-04-29 09:18:36 +00:00
kern_osd.c
kern_physio.c
kern_pmc.c
kern_poll.c
kern_priv.c
kern_proc.c Add the support for reporting the NOCOREDUMP flag from 2010-05-27 08:10:12 +00:00
kern_prot.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
kern_resource.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
kern_rmlock.c
kern_rwlock.c Print the pointer to the lock with the panic message. The previous 2010-03-24 19:21:26 +00:00
kern_sdt.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_sema.c
kern_shutdown.c Fix compilation in the !SMP case. 2010-04-20 12:22:06 +00:00
kern_sig.c Fix function name in error messages. 2010-07-20 02:23:12 +00:00
kern_switch.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
kern_sx.c Fix a sign bug that caused adaptive spinning in sx_xlock() to not work 2010-06-08 16:17:47 +00:00
kern_synch.c
kern_syscalls.c Count number of threads that enter and leave dynamically registered 2010-06-28 18:06:46 +00:00
kern_sysctl.c
kern_tc.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
kern_thr.c Tweak the in-kernel API for sending signals to threads: 2010-06-29 20:41:52 +00:00
kern_thread.c Retire td_syscalls now that it is no longer needed. 2010-07-15 20:24:37 +00:00
kern_time.c
kern_timeout.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
kern_umtx.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
kern_uuid.c
kern_xxx.c
ksched.c
link_elf_obj.c completely ignore zero-sized elf sections in modules of elf object type (amd64) 2010-07-23 17:07:51 +00:00
link_elf.c
linker_if.m
Make.tags.inc
Makefile
makesyscalls.sh Count number of threads that enter and leave dynamically registered 2010-06-28 18:06:46 +00:00
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c Add a facility to dynamically adjust or unconfigure p1003_1b mib. 2010-06-02 09:59:05 +00:00
sched_4bsd.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
sched_ule.c A cosmetic change - don't output empty <flags>. 2010-07-15 13:46:30 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c The acl_cnt field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:41:55 +00:00
subr_acl_posix1e.c The 'acl_cnt' field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:43:58 +00:00
subr_autoconf.c
subr_blist.c
subr_bufring.c Switch to our preferred 2-clause BSD license. 2010-05-05 20:39:02 +00:00
subr_bus.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_clock.c
subr_devstat.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_disk.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
subr_eventhandler.c Split eventhandler_register() into an internal part and a wrapper function 2010-03-19 19:51:03 +00:00
subr_fattime.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_firmware.c
subr_hash.c
subr_hints.c
subr_kdb.c fix a few cases where a string is passed via format argument instead of 2010-06-11 19:27:21 +00:00
subr_kobj.c
subr_lock.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_log.c
subr_mbpool.c
subr_mchain.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_module.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
subr_msgbuf.c
subr_param.c Reverse the logic of the if statement that sets the default value of 2010-06-24 00:27:20 +00:00
subr_pcpu.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
subr_power.c
subr_prf.c Use type-specific inline function imax() instead of deprecated macro MAX(). 2010-07-12 15:32:45 +00:00
subr_prof.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
subr_rman.c
subr_rtc.c
subr_sbuf.c
subr_scanf.c
subr_sglist.c
subr_sleepqueue.c Update comment for tdsignal() -> tdsendsignal() rename. Forgot to include 2010-06-30 18:00:45 +00:00
subr_smp.c Update several places that iterate over CPUs to use CPU_FOREACH(). 2010-06-11 18:46:34 +00:00
subr_stack.c
subr_taskqueue.c Remove unused variable that snuck in during development. 2010-07-22 17:23:43 +00:00
subr_trap.c Retire td_syscalls now that it is no longer needed. 2010-07-15 20:24:37 +00:00
subr_turnstile.c
subr_uio.c Push down the page queues into vm_page_cache(), vm_page_try_to_cache(), and 2010-05-08 20:34:01 +00:00
subr_unit.c Remove redundant high >= 0. 2010-07-09 10:57:55 +00:00
subr_witness.c "time lock" is no longer a spin-lock since r209371. 2010-06-21 21:15:51 +00:00
sys_generic.c Send SIGPIPE to the thread that issued the offending system call 2010-06-29 20:44:19 +00:00
sys_pipe.c Update a comment: It no longer makes sense to talk about the page queues 2010-05-08 23:01:47 +00:00
sys_process.c Extend ptrace(PT_LWPINFO) to report siginfo for the signal that caused 2010-07-04 11:48:30 +00:00
sys_socket.c Send SIGPIPE to the thread that issued the offending system call 2010-06-29 20:44:19 +00:00
syscalls.c Regenerate 2010-06-28 18:17:21 +00:00
syscalls.master Count number of threads that enter and leave dynamically registered 2010-06-28 18:06:46 +00:00
systrace_args.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
sysv_ipc.c Move SysV IPC freebsd32 compat shims helpers from freebsd32_misc.c to 2010-03-19 11:01:51 +00:00
sysv_msg.c Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding 2010-03-19 11:04:42 +00:00
sysv_sem.c In another move to join with the age of the Fruitbat, increase SYSV 2010-06-11 09:27:33 +00:00
sysv_shm.c If i is going to be used in the loop unconditionally the declaration 2010-06-29 01:04:24 +00:00
tty_compat.c
tty_info.c
tty_inq.c
tty_outq.c
tty_pts.c Do not leak master pty or ptmx vnode. 2010-04-08 08:58:18 +00:00
tty_tty.c
tty_ttydisc.c
tty.c Fix a race condition, where a TTY could be destroyed twice. 2010-07-06 08:56:34 +00:00
uipc_accf.c
uipc_cow.c Remove page queues locking from all sf_buf_mext()-like functions. The page 2010-05-06 17:43:41 +00:00
uipc_debug.c
uipc_domain.c
uipc_mbuf2.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
uipc_mbuf.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
uipc_mqueue.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
uipc_sem.c Add a facility to dynamically adjust or unconfigure p1003_1b mib. 2010-06-02 09:59:05 +00:00
uipc_shm.c Minimize the use of the page queues lock for synchronizing access to the 2010-06-02 15:46:37 +00:00
uipc_sockbuf.c
uipc_socket.c When close() is called on a connected socket pair, SO_ISCONNECTED might be 2010-05-27 15:27:31 +00:00
uipc_syscalls.c Send SIGPIPE to the thread that issued the offending system call 2010-06-29 20:44:19 +00:00
uipc_usrreq.c Remove spurious '/*-' marks and fix some other style problems. 2010-07-22 05:42:29 +00:00
vfs_acl.c The 'acl_cnt' field is unsigned; no point in checking if it's >= 0. 2010-06-03 13:45:27 +00:00
vfs_aio.c Convert aio syscall registration to SYSCALL_INIT_HELPER. 2010-03-19 11:11:34 +00:00
vfs_bio.c Make lorunningspace catch up with hirunningspace. 2010-07-23 12:30:29 +00:00
vfs_cache.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
vfs_cluster.c
vfs_default.c Add VOP_ADVLOCKPURGE so that the file system is called when purging 2010-05-12 21:24:46 +00:00
vfs_export.c
vfs_extattr.c Revert r210225 - turns out I was wrong; the "/*-" is not license-only 2010-07-18 20:57:53 +00:00
vfs_hash.c
vfs_init.c
vfs_lookup.c Support only LOOKUP operation for "/" in relookup() because lookup() 2010-03-26 11:33:12 +00:00
vfs_mount.c
vfs_subr.c Use ISO C99 integer types in sys/kern where possible. 2010-06-21 09:55:56 +00:00
vfs_syscalls.c In revoke(), verify that VCHR vnode indeed belongs to devfs. 2010-07-06 18:20:49 +00:00
vfs_vnops.c Correct arguments order. 2010-06-26 21:44:45 +00:00
vnode_if.src Add VOP_ADVLOCKPURGE so that the file system is called when purging 2010-05-12 21:24:46 +00:00