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56acb799b2
freebsd-dev/sys/kern
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Bosko Milekic 56acb799b2 When short of mbufs or mbuf clusters, we sleep on appropriate "counters." 
The counters are incremented when a thread goes to sleep and decremented
either when a thread is woken up by another thread or when the sleep
times out. There existed a race where the sleep count could be decremented
twice resulting in an eventual underflow.
Move the decrementing of the "counters" to the thread initiating the sleep
and thus remedy the problem.
2001-01-20 21:29:10 +00:00
..
bus_if.m Alter the return value and arguments of the GET_RESOURCE_LIST bus method. 2000-11-28 06:49:15 +00:00
device_if.m * Factor out the object system from new-bus so that it can be used by 2000-04-08 14:17:18 +00:00
genassym.sh Use "nm | awk ..." instead of genassym(1) to generate symbol value headers. 2000-06-02 09:27:48 +00:00
imgact_aout.c Change the proc information returned from the kernel so that it 2000-12-12 07:25:57 +00:00
imgact_elf.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
imgact_gzip.c useracc() the prequel: 1999-10-29 18:09:36 +00:00
imgact_shell.c Fix #! script exec under linux emulation. If a script is exec'd from a 2000-04-26 20:58:40 +00:00
inflate.c Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
init_main.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
init_sysent.c Regen. 2000-12-02 05:45:32 +00:00
kern_acct.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
kern_acl.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
kern_cap.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
kern_clock.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_condvar.c Implement condition variables. 2001-01-16 01:00:43 +00:00
kern_conf.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_descrip.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_environment.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_event.c select() DKI is now in <sys/selinfo.h>. 2001-01-09 04:33:49 +00:00
kern_exec.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_exit.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_fork.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_idle.c Catch up to moving headers: 2000-10-20 07:58:15 +00:00
kern_intr.c Remove the static splXXX functions and replace them by static __inline 2001-01-19 09:57:29 +00:00
kern_jail.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_kthread.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_ktr.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_ktrace.c Don't use SCARG. 2001-01-08 07:22:06 +00:00
kern_linker.c Pull out the module path from the loader. ie: if you boot from 2000-12-28 08:14:58 +00:00
kern_lock.c Use msleep instead of mtx_exit; tsleep; mtx_enter, which is not safe. 2000-12-01 02:18:38 +00:00
kern_lockf.c Commit the remaining part of PR14914: 1999-11-16 16:28:58 +00:00
kern_malloc.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_mib.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_module.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
kern_mutex.c - Make npx_intr INTR_MPSAFE and move acquiring Giant into the 2001-01-20 02:30:58 +00:00
kern_ntptime.c Updates to the ntp pll from John Hay. 2000-09-10 09:13:34 +00:00
kern_physio.c Separate the struct bio related stuff out of <sys/buf.h> into 2000-05-05 09:59:14 +00:00
kern_proc.c - Use sched_lock to prevent the mutex name from changing out from under us 2001-01-13 23:08:34 +00:00
kern_prot.c Fix getsid() to use "=" instead of "==". 2001-01-13 22:49:59 +00:00
kern_random.c This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
kern_resource.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_shutdown.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_sig.c Revert revision 1.102. I don't think p_nice needs to be protected with 2001-01-19 08:23:22 +00:00
kern_subr.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_switch.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
kern_synch.c Temporarily disable the printf() for micruptime() going backwards, the 2001-01-20 02:57:59 +00:00
kern_syscalls.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
kern_sysctl.c - For dynamic sysctl's added at runtime, don't assume that the name passed 2001-01-05 07:00:45 +00:00
kern_tc.c Remove a bogus #ifdef KTR stanza. 2001-01-01 23:09:53 +00:00
kern_time.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
kern_timeout.c Revert the last commit to the callout interface, and add a flag to 2000-11-25 06:22:16 +00:00
kern_xxx.c
ksched.c Remove unneeded #include <sys/kernel.h> 2000-04-29 15:36:14 +00:00
link_aout.c Change the conditionaal so that we only build this on i386 instead of 2000-09-29 13:32:24 +00:00
link_elf_obj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
link_elf.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
linker_if.m First round implementation of a fine grain enhanced module to module 2000-04-29 13:19:31 +00:00
Make.tags.inc there is no more miscfs/devfs 2000-12-31 23:12:20 +00:00
makedevops.pl Fix a bug in both scripts: HEADER sections were not emitted to the header 2001-01-04 13:41:24 +00:00
Makefile Retire kernfs (kernel part). 2000-12-28 12:17:35 +00:00
makeobjops.pl Fix a bug in both scripts: HEADER sections were not emitted to the header 2001-01-04 13:41:24 +00:00
makesyscalls.sh Add reserved lkmressys keyword. I swear, this script will die the 2000-12-01 08:47:54 +00:00
md5c.c Add ia64 support. 2000-09-29 13:36:47 +00:00
p1003_1b.c Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
posix4_mib.c Add $FreeBSD$. 2000-04-22 15:13:06 +00:00
subr_acl_posix1e.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
subr_autoconf.c Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
subr_blist.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_bus.c Unset the devclass if the attach fails and the devclass was not set to 2001-01-08 22:16:26 +00:00
subr_clist.c
subr_devstat.c Support for unsigned integer and long sysctl variables. Update the 2000-07-05 07:46:41 +00:00
subr_disk.c Don't clone impossible unit numbers for disks. 2000-12-15 17:55:24 +00:00
subr_disklabel.c A bit of sanity-checking in bioqdisksort(): panic if we recurse. 2001-01-14 18:48:42 +00:00
subr_diskmbr.c Make diskerr() always log with printf. 2000-11-26 19:29:15 +00:00
subr_diskslice.c Add a new ioctl for doing virgin disklabels. 2000-10-31 07:05:40 +00:00
subr_eventhandler.c Implement MTX_RECURSE flag for mtx_init(). 2001-01-19 01:59:14 +00:00
subr_kobj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_log.c Replace logwakeup() with "int msgbuftrigger". There is little 2000-12-20 21:50:37 +00:00
subr_module.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
subr_param.c Remove unneeded <stddef.h> #includes. 2000-10-29 16:57:42 +00:00
subr_prf.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
subr_prof.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_rman.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_sbuf.c String buffer API 2000-12-13 19:51:07 +00:00
subr_scanf.c Change the prototype of the strto* routines to make the second 1999-11-24 01:03:08 +00:00
subr_smp.c apic_itrace_splz[] is unused 2001-01-19 10:48:35 +00:00
subr_taskqueue.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
subr_trap.c Use #ifdef DEV_NPX from opt_npx.h instead of #if NNPX > 0 from npx.h 2001-01-19 13:19:02 +00:00
subr_turnstile.c - Make npx_intr INTR_MPSAFE and move acquiring Giant into the 2001-01-20 02:30:58 +00:00
subr_witness.c - Make npx_intr INTR_MPSAFE and move acquiring Giant into the 2001-01-20 02:30:58 +00:00
subr_xxx.c Remove five now unused fields from struct cdevsw. They should never 1999-09-25 18:24:47 +00:00
sys_generic.c select() DKI is now in <sys/selinfo.h>. 2001-01-09 04:33:49 +00:00
sys_pipe.c Style improvements for last fix. Should be functionally the same. 2001-01-11 00:13:54 +00:00
sys_process.c Backout rev 1.57 & 1.58. While the previous revisions fixed 2000-12-31 01:30:27 +00:00
sys_socket.c Instead of just blindly setting -rw-rw-rw-: 2000-07-02 23:56:45 +00:00
syscalls.c Regen. 2000-12-02 05:45:32 +00:00
syscalls.master Remove thr_sleep and thr_wakeup. Remove fields p_nthread and p_wakeup 2000-12-02 05:41:30 +00:00
sysv_ipc.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
sysv_msg.c Use predictable internal names for the sysvipc modules, so we have a 2001-01-14 18:04:30 +00:00
sysv_sem.c Use predictable internal names for the sysvipc modules, so we have a 2001-01-14 18:04:30 +00:00
sysv_shm.c Use predictable internal names for the sysvipc modules, so we have a 2001-01-14 18:04:30 +00:00
tty_compat.c
tty_conf.c Don't refer to TABLDISC in the comments here. 2000-01-30 10:14:13 +00:00
tty_cons.c Replace logwakeup() with "int msgbuftrigger". There is little 2000-12-20 21:50:37 +00:00
tty_pty.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
tty_snoop.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
tty_subr.c
tty_tty.c Add snapshots to the fast filesystem. Most of the changes support 2000-07-11 22:07:57 +00:00
tty.c Be more careful with sched_lock in the SIGINFO handler. Specifically, do 2001-01-20 02:04:44 +00:00
uipc_accf.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
uipc_domain.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
uipc_mbuf2.c * Have m_pulldown() use the new M_WRITABLE() macro in order to determine 2000-11-11 23:04:15 +00:00
uipc_mbuf.c When short of mbufs or mbuf clusters, we sleep on appropriate "counters." 2001-01-20 21:29:10 +00:00
uipc_proto.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
uipc_sockbuf.c Make sbcompress use the new M_WRITABLE macro. Previously sbcompress 2000-11-19 22:22:47 +00:00
uipc_socket2.c Make sbcompress use the new M_WRITABLE macro. Previously sbcompress 2000-11-19 22:22:47 +00:00
uipc_socket.c * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
uipc_syscalls.c Fix the <sys/queue.h> abuse. 2001-01-02 11:51:55 +00:00
uipc_usrreq.c * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
vfs_acl.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
vfs_aio.c Remove thr_sleep and thr_wakeup. Remove fields p_nthread and p_wakeup 2000-12-02 05:41:30 +00:00
vfs_bio.c Use PCPU_GET, PCPU_PTR and PCPU_SET to access all per-cpu variables 2001-01-10 04:43:51 +00:00
vfs_cache.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
vfs_cluster.c Do not cluster with B_LOCKED buffers. 2001-01-19 05:31:07 +00:00
vfs_conf.c Add `_PATH_DEVZERO'. 2000-12-09 09:35:55 +00:00
vfs_default.c Give vop_mmap an untimely death. The opportunity to give it a timely 2000-11-01 17:57:24 +00:00
vfs_export.c Stick the kthread API in a kthread_* namespace, and the specialized kproc 2000-12-15 20:08:20 +00:00
vfs_extattr.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
vfs_init.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
vfs_lookup.c Untangle vfsinit() a bit. Use seperate sysinit functions rather than 2000-12-06 07:09:08 +00:00
vfs_mount.c Add `_PATH_DEVZERO'. 2000-12-09 09:35:55 +00:00
vfs_subr.c Stick the kthread API in a kthread_* namespace, and the specialized kproc 2000-12-15 20:08:20 +00:00
vfs_syscalls.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
vfs_vnops.c Implement a low-memory deadlock solution. 2000-11-18 23:06:26 +00:00
vnode_if.pl Simplify this a bit so that it doesn't have to generate silly redundant 2000-12-06 06:59:38 +00:00
vnode_if.src Give vop_mmap an untimely death. The opportunity to give it a timely 2000-11-01 17:57:24 +00:00