jeff 4a1456cf5d - Reassign the thread queue lock to newtd prior to switching. Assigning ...

after the switch leads to a race where the outgoing thread still owns
   the local queue lock while another cpu may switch it in.  This race
   is only possible on machines where cpu_switch can take significantly
   longer on different cpus which in practice means HTT machines with
   unfair thread scheduling algorithms.

Found by:	kris (of course)
Approved by:	re

2007-10-02 01:30:18 +00:00

..

bus_if.m

…

clock_if.m

…

cpufreq_if.m

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device_if.m

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genassym.sh

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imgact_aout.c

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imgact_elf32.c

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imgact_elf64.c

…

imgact_elf.c

…

imgact_gzip.c

…

imgact_shell.c

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inflate.c

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init_main.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

init_sysent.c

Regenerate.

2007-08-16 05:32:26 +00:00

kern_acct.c

Add missing newline in the log message of the previous commit.

2007-08-31 13:56:26 +00:00

kern_alq.c

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kern_clock.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

kern_condvar.c

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kern_conf.c

Revert destroy_dev() to the state before destroy_dev_sched() was introduced.

2007-07-05 13:04:59 +00:00

kern_context.c

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kern_cpu.c

Always call sched_bind(), even if on the CPU in question. It is wrong to

2007-08-20 06:28:26 +00:00

kern_descrip.c

Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which

2007-08-06 14:26:03 +00:00

kern_environment.c

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kern_event.c

Revert previous commits which I committed by mistake.

2007-07-14 21:23:31 +00:00

kern_exec.c

Change the management of cached pages (PQ_CACHE) in two fundamental

2007-09-25 06:25:06 +00:00

kern_exit.c

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kern_fork.c

- Redefine p_swtime and td_slptime as p_swtick and td_slptick. This

2007-09-21 04:10:23 +00:00

kern_idle.c

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kern_intr.c

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kern_jail.c

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kern_kse.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

kern_kthread.c

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kern_ktr.c

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kern_ktrace.c

Partially revert the previous change. I failed to notice that where

2007-08-29 21:17:11 +00:00

kern_linker.c

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kern_lock.c

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kern_lockf.c

Do not call free() while holding vnode interlock.

2007-08-07 09:04:50 +00:00

kern_malloc.c

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kern_mbuf.c

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kern_mib.c

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kern_module.c

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kern_mtxpool.c

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kern_mutex.c

- Remove the global definition of sched_lock in mutex.h to break

2007-07-18 20:46:06 +00:00

kern_ntptime.c

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kern_physio.c

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kern_pmc.c

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kern_poll.c

Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which

2007-08-06 14:26:03 +00:00

kern_priv.c

Continue kernel privilege cleanup for 7.0: unstaticize suser_enabled and

2007-07-02 14:03:29 +00:00

kern_proc.c

- Redefine p_swtime and td_slptime as p_swtick and td_slptick. This

2007-09-21 04:10:23 +00:00

kern_prot.c

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kern_resource.c

- Use ruxagg() in calcru() to make sure we have current tick information

2007-07-17 01:08:09 +00:00

kern_rwlock.c

Fix some problems with lock profiling in rw locks:

2007-07-20 08:43:42 +00:00

kern_sema.c

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kern_shutdown.c

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kern_sig.c

- Calling sched_nice() in tdsigwakeup() is no longer required by ULE and

2007-07-19 08:49:16 +00:00

kern_subr.c

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kern_switch.c

Fix some entries in the locks static table of witness.

2007-09-20 20:38:43 +00:00

kern_sx.c

Fix some problems with lock_profiling in sx locks:

2007-07-06 13:20:44 +00:00

kern_synch.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

kern_syscalls.c

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kern_sysctl.c

In userland_sysctl(), call useracc() with the actual newlen value to be

2007-09-02 09:59:33 +00:00

kern_tc.c

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kern_thr.c

Add thr_kill2 syscall which sends a signal to a thread in another process.

2007-08-16 05:26:42 +00:00

kern_thread.c

- Call sched_sleep() before we suspend threads. sched_wakeup() is already

2007-09-21 04:04:22 +00:00

kern_time.c

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kern_timeout.c

Remove the definition and implementation of 'CALLOUT_NETGIANT', a now- (and

2007-09-15 12:33:24 +00:00

kern_umtx.c

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kern_uuid.c

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kern_xxx.c

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ksched.c

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link_elf_obj.c

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link_elf.c

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linker_if.m

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Make.tags.inc

Remove netkey directory from cscope/TAGs generation and replace

2007-07-05 08:55:14 +00:00

Makefile

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makesyscalls.sh

Add support for COMPAT6 syscalls.

2007-07-04 22:38:28 +00:00

md4c.c

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md5c.c

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p1003_1b.c

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posix4_mib.c

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sched_4bsd.c

- Redefine p_swtime and td_slptime as p_swtick and td_slptick. This

2007-09-21 04:10:23 +00:00

sched_ule.c

- Reassign the thread queue lock to newtd prior to switching. Assigning

2007-10-02 01:30:18 +00:00

serdev_if.m

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subr_acl_posix1e.c

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subr_autoconf.c

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subr_blist.c

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subr_bus.c

First in a series of changes to remove the now-unused Giant compatibility

2007-07-27 11:59:57 +00:00

subr_clist.c

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subr_clock.c

If clock_ct_to_ts fails to convert time time from the real time clock,

2007-07-23 09:42:32 +00:00

subr_devstat.c

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subr_disk.c

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subr_eventhandler.c

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subr_fattime.c

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subr_firmware.c

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subr_hints.c

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subr_kdb.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

subr_kobj.c

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subr_lock.c

Currently the LO_NOPROFILE flag (which is masked on upper level code by

2007-09-14 01:12:39 +00:00

subr_log.c

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subr_mbpool.c

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subr_mchain.c

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subr_module.c

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subr_msgbuf.c

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subr_param.c

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subr_pcpu.c

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subr_power.c

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subr_prf.c

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subr_prof.c

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subr_rman.c

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subr_rtc.c

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subr_sbuf.c

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subr_scanf.c

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subr_sleepqueue.c

subr_sleepqueue.c presents a thread lock missing which leads to dangerous

2007-09-13 09:12:36 +00:00

subr_smp.c

This is a follow-up, cleaning-up commit about recent changes involving

2007-09-11 22:54:09 +00:00

subr_stack.c

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subr_taskqueue.c

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subr_trap.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

subr_turnstile.c

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subr_unit.c

Since cdev mutex is after system map mutex in global lock order, free()

2007-07-04 06:56:58 +00:00

subr_witness.c

Fix some entries in the locks static table of witness.

2007-09-20 20:38:43 +00:00

sys_generic.c

Add freebsd6_ wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate

2007-07-04 22:57:21 +00:00

sys_pipe.c

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sys_process.c

- Move all of the PS_ flags into either p_flag or td_flags.

2007-09-17 05:31:39 +00:00

sys_socket.c

Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which

2007-08-06 14:26:03 +00:00

syscalls.c

Regenerate.

2007-08-16 05:32:26 +00:00

syscalls.master

Add thr_kill2 syscall which sends a signal to a thread in another process.

2007-08-16 05:26:42 +00:00

systrace_args.c

Regenerate.

2007-08-16 05:32:26 +00:00

sysv_ipc.c

…

sysv_msg.c

…

sysv_sem.c

Relock the sema_mtxp unconditionally after copyin() for SETALL case in

2007-07-03 15:58:47 +00:00

sysv_shm.c

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tty_compat.c

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tty_conf.c

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tty_cons.c

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tty_pts.c

Fix bad function type passed to destroy_dev_sched_cb().

2007-07-05 05:54:47 +00:00

tty_pty.c

Use make_dev_credf(MAKEDEV_REF) instead of make_dev() from pty clone handler.

2007-07-03 17:45:52 +00:00

tty_subr.c

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tty_tty.c

Lock Giant and proctree lock around dereferencing p_session->s_ttyvp->v_rdev.

2007-07-03 17:46:37 +00:00

tty.c

ttyfree() frees the cdev(). But if there are pending kevents,

2007-07-20 09:41:54 +00:00

uipc_accf.c

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uipc_cow.c

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uipc_debug.c

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uipc_domain.c

Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which

2007-08-06 14:26:03 +00:00

uipc_mbuf2.c

…

uipc_mbuf.c

…

uipc_mqueue.c

…

uipc_sem.c

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uipc_sockbuf.c

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uipc_socket.c

…

uipc_syscalls.c

- During shutdown pending, when the last sack came in and

2007-08-27 05:19:48 +00:00

uipc_usrreq.c

When we do open, we should lock the vnode exclusively. This fixes few races:

2007-07-26 16:58:09 +00:00

vfs_acl.c

…

vfs_aio.c

Destroy the kaio_mtx on the freeing the struct kaioinfo in the

2007-08-20 11:53:26 +00:00

vfs_bio.c

Fix the description of the formula used to autosize the number of

2007-09-26 11:22:23 +00:00

vfs_cache.c

Fix some locking cases where we ask for exclusively locked vnode, but we get

2007-09-21 10:16:56 +00:00

vfs_cluster.c

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vfs_default.c

…

vfs_export.c

…

vfs_extattr.c

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vfs_hash.c

…

vfs_init.c

…

vfs_lookup.c

Fix some locking cases where we ask for exclusively locked vnode, but we get

2007-09-21 10:16:56 +00:00

vfs_mount.c

When restoring the mount after umount failed, the MNTK_UNMOUNT flag

2007-09-12 16:31:32 +00:00

vfs_subr.c

When restoring the mount after umount failed, the MNTK_UNMOUNT flag

2007-09-12 16:31:32 +00:00

vfs_syscalls.c

Rename mac_check_vnode_delete() MAC Framework and MAC Policy entry

2007-09-10 00:00:18 +00:00

vfs_vnops.c

When we do open, we should lock the vnode exclusively. This fixes few races:

2007-07-26 16:58:09 +00:00

vnode_if.src

…