Konstantin Belousov 787a64ddd2 Do not skip two elements of the tid_buffer when reusing the buffer ...

slot. This eventually results in exhaustion of the tid space, causing
new threads get tid -1 as identifier.

The bad effect of having the thread id equal to -1 is that
UMTX_OP_UMUTEX_WAIT returns EFAULT for a lock owned by such thread,
because casuword cannot distinguish between literal value -1 read from
the address and -1 returned as an indication of faulted
access. _thr_umutex_lock() helper from libthr does not check for
errors from _umtx_op_err(2), causing an infinite loop in
mutex_lock_sleep().

We observed the JVM processes hanging and consuming enormous amount of
system time on machines with approximately 100 days uptime.

Reported by:	Mykola Dzham <freebsd levsha org ua>
MFC after:	1 week

2012-09-22 12:17:09 +00:00

..

bus_if.m

Add a BUS_CHILD_DELETED() method that a bus can hook to allow it to cleanup

2012-08-21 18:13:09 +00:00

capabilities.conf

Add missing system calls.

2012-05-31 19:32:37 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

Revert r239178 and implement two new functions, namely

2012-08-15 15:42:57 +00:00

dtio_kdtrace.c

Initial commit of an I/O provider for DTrace on FreeBSD.

2012-07-11 16:27:02 +00:00

genassym.sh

…

imgact_aout.c

Cosmetics: define FREEBSD32_MINUSER and AOUT32_MINUSER for struct

2012-07-22 13:41:45 +00:00

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Fix several reads beyond the mapped first page of the binary in the

2012-07-19 11:15:53 +00:00

imgact_gzip.c

Remove an old hack I noticed years ago, but never committed.

2012-06-28 07:33:43 +00:00

imgact_shell.c

The execution of the shebang script requires putting interpreter path,

2011-03-06 22:59:30 +00:00

inflate.c

…

init_main.c

Fix grammar.

2012-08-16 13:01:56 +00:00

init_sysent.c

regen.

2012-08-17 02:47:16 +00:00

kern_acct.c

- Don't log messages saying that accounting is being disabled and enabled

2012-05-02 14:25:39 +00:00

kern_alq.c

…

kern_clock.c

Implement the DTrace sched provider. This implementation aims to be

2012-05-15 01:30:25 +00:00

kern_clocksource.c

Particlly MFcalloutng r238425 (by davide):

2012-08-04 08:06:37 +00:00

kern_condvar.c

Remove all the checks on curthread != NULL with the exception of some MD

2012-09-13 22:26:22 +00:00

kern_conf.c

Remove unused SI_* flags.

2012-08-28 19:30:29 +00:00

kern_cons.c

belatedly transfer copyrights from libkern/gets.c to kern_cons.c

2011-12-17 15:50:45 +00:00

kern_context.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_cpu.c

Revert r175376 and tune cpufreq(4) frequency comparison logic instead.

2012-03-10 18:56:16 +00:00

kern_cpuset.c

Post r222812 KTR_CPUMASK started being initialized only as a tunable

2012-08-30 21:22:47 +00:00

kern_ctf.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

kern_descrip.c

Add F_DUP2FD_CLOEXEC. Apparently Solaris 11 already did this.

2012-07-27 10:41:10 +00:00

kern_dtrace.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_environment.c

Reserve room for the terminating NUL when setting or getting kernel

2012-08-14 19:16:30 +00:00

kern_et.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_event.c

Make the interval timings for EVFILT_TIMER more accurate. tvtohz() always

2012-07-13 13:24:33 +00:00

kern_exec.c

Unbreak handling of descriptors opened with O_EXEC by fexecve(2).

2012-07-08 00:51:38 +00:00

kern_exit.c

Ignore stop and continue signals sent to an exiting process. Stop signals

2012-09-13 15:51:18 +00:00

kern_fail.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_ffclock.c

Revise the sysctl handling code and restructure the hierarchy of sysctls

2011-12-01 07:19:13 +00:00

kern_fork.c

userret() already checks for td_locks when INVARIANTS is enabled, so

2012-09-08 18:27:11 +00:00

kern_gzio.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

kern_hhook.c

Staticize malloc types.

2011-04-13 11:28:46 +00:00

kern_idle.c

On multi-core, multi-threaded PPC systems, it is important that the threads

2011-05-31 15:11:43 +00:00

kern_intr.c

Do not add handler to event handlers list until ithread is created.

2012-08-06 16:37:43 +00:00

kern_jail.c

Fix use-after-free in kern_jail_set() triggered e.g. by attempts

2012-05-22 19:43:20 +00:00

kern_khelp.c

Use the full and proper company name for Swinburne University of Technology

2011-04-12 08:13:18 +00:00

kern_kthread.c

Stop treating td_sigmask specially for the purposes of new thread

2012-05-26 20:03:47 +00:00

kern_ktr.c

Post r222812 KTR_CPUMASK started being initialized only as a tunable

2012-08-30 21:22:47 +00:00

kern_ktrace.c

Include the associated wait channel message for context switch ktrace

2012-04-20 15:32:36 +00:00

kern_linker.c

If a linker file contains at least one module, but all of the modules

2012-04-12 14:49:25 +00:00

kern_lock.c

Improve check coverage about idle threads.

2012-09-12 22:10:53 +00:00

kern_lockf.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

kern_lockstat.c

…

kern_loginclass.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

kern_malloc.c

Fix a bug with memguard(9) on 32-bit architectures without a

2012-07-15 20:29:48 +00:00

kern_mbuf.c

Allow nmbjumbop, nmbjumbo9, and nmbjumbo16 to be set directly via loader

2012-08-23 21:32:02 +00:00

kern_mib.c

As a safety measure, disable lowering pid_max too much.

2012-08-16 13:04:21 +00:00

kern_module.c

Fix a typo.

2012-08-22 20:01:57 +00:00

kern_mtxpool.c

…

kern_mutex.c

Remove all the checks on curthread != NULL with the exception of some MD

2012-09-13 22:26:22 +00:00

kern_ntptime.c

Limit popcorn limit to something sane (either 2ns or 2 ticks if that's

2012-08-16 02:35:44 +00:00

kern_osd.c

…

kern_physio.c

…

kern_pmc.c

Add software PMC support.

2012-03-28 20:58:30 +00:00

kern_poll.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

kern_priv.c

…

kern_proc.c

Don't include opt_ddb.h & <ddb/ddb.h> twice.

2012-08-15 14:18:54 +00:00

kern_prot.c

Fix a typo. (s/nessesary/necessary/)

2012-01-08 18:48:36 +00:00

kern_racct.c

Fix panic with RACCT that could occur in low memory (or out of swap)

2012-05-22 15:58:27 +00:00

kern_rangelock.c

Add a rangelock implementation, intended to be used to range-locking

2012-05-30 16:06:38 +00:00

kern_rctl.c

Stop treating system processes as special. This fixes panics

2012-04-17 14:31:02 +00:00

kern_resource.c

Change kern.proc.rlimit sysctl to:

2012-01-22 20:25:00 +00:00

kern_rmlock.c

Improve check coverage about idle threads.

2012-09-12 22:10:53 +00:00

kern_rwlock.c

Remove all the checks on curthread != NULL with the exception of some MD

2012-09-13 22:26:22 +00:00

kern_sdt.c

Instead of only iterating over the set of known SDT probes when sdt.ko is

2012-03-27 15:07:43 +00:00

kern_sema.c

…

kern_sharedpage.c

Move the code dealing with shared page into a dedicated

2012-06-23 10:15:23 +00:00

kern_shutdown.c

free wdog_kern_pat calls in post-panic paths from under SW_WATCHDOG

2012-06-03 08:01:12 +00:00

kern_sig.c

Ignore stop and continue signals sent to an exiting process. Stop signals

2012-09-13 15:51:18 +00:00

kern_switch.c

critical_exit: ignore td_owepreempt if kdb_active is set

2011-12-04 21:27:41 +00:00

kern_sx.c

Remove all the checks on curthread != NULL with the exception of some MD

2012-09-13 22:26:22 +00:00

kern_synch.c

Implement the DTrace sched provider. This implementation aims to be

2012-05-15 01:30:25 +00:00

kern_syscalls.c

…

kern_sysctl.c

Handle spurious page faults that may occur in no-fault sections of the

2012-03-22 04:52:51 +00:00

kern_tc.c

Add support for walltimestamp in DTrace.

2012-07-16 20:17:19 +00:00

kern_thr.c

Stop treating td_sigmask specially for the purposes of new thread

2012-05-26 20:03:47 +00:00

kern_thread.c

Do not skip two elements of the tid_buffer when reusing the buffer

2012-09-22 12:17:09 +00:00

kern_time.c

Implement syscall clock_getcpuclockid2, so we can get a clock id

2012-08-17 02:26:31 +00:00

kern_timeout.c

Move the code to call the callout callback into the helper function

2012-05-03 20:00:30 +00:00

kern_umtx.c

Some style fixes inspired by @bde.

2012-08-11 23:48:39 +00:00

kern_uuid.c

Convert all users of IF_ADDR_LOCK to use new locking macros that specify

2012-01-05 19:00:36 +00:00

kern_xxx.c

…

ksched.c

sched_rr_interval() seems always returned period in hz ticks, but same

2012-08-10 18:19:57 +00:00

link_elf_obj.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

link_elf.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

linker_if.m

…

Make.tags.inc

Update tags build script

2011-07-10 00:53:04 +00:00

Makefile

…

makesyscalls.sh

- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

2011-11-21 01:26:10 +00:00

md4c.c

…

md5c.c

…

p1003_1b.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

posix4_mib.c

Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which

2011-07-17 23:05:24 +00:00

sched_4bsd.c

Mark the idle threads as non-sleepable and also assert that an idle

2012-08-22 20:01:38 +00:00

sched_ule.c

sched_ule: fix inverted condition in reporting of priority lending via ktr

2012-09-14 19:55:28 +00:00

serdev_if.m

…

stack_protector.c

…

subr_acl_nfs4.c

Fix bug where NFSv4 ACL enforcement code wouldn't unconditionally

2012-04-17 14:54:00 +00:00

subr_acl_posix1e.c

Add module load/unload stubs.

2012-03-13 20:27:48 +00:00

subr_autoconf.c

…

subr_blist.c

- Fix typos s/(more|less) then|\1 than/

2011-12-03 15:41:37 +00:00

subr_bufring.c

…

subr_bus.c

Add a BUS_CHILD_DELETED() method that a bus can hook to allow it to cleanup

2012-08-21 18:13:09 +00:00

subr_clock.c

…

subr_devstat.c

Fix build for kernels with dtrace hooks.

2012-07-11 18:50:50 +00:00

subr_disk.c

…

subr_dummy_vdso_tc.c

Implement mechanism to export some kernel timekeeping data to

2012-06-22 07:06:40 +00:00

subr_eventhandler.c

…

subr_fattime.c

…

subr_firmware.c

Correct sizeof usage

2012-06-25 05:41:16 +00:00

subr_hash.c

Convert panic()s to KASSERT()s. This is an optimisation for

2012-01-23 16:31:46 +00:00

subr_hints.c

Style fixes.

2012-09-04 23:16:55 +00:00

subr_kdb.c

- Extend the KDB interface to add a per-debugger callback to print a

2012-04-12 17:43:59 +00:00

subr_kobj.c

As it turns out, r186347 actually is insufficient to avoid the use of the

2011-11-15 20:11:03 +00:00

subr_lock.c

panic: add a switch and infrastructure for stopping other CPUs in SMP case

2011-12-11 21:02:01 +00:00

subr_log.c

Add kqueue support to /dev/klog.

2012-02-01 14:34:52 +00:00

subr_mbpool.c

…

subr_mchain.c

- Use uint8_t for the variable x and spell the size of the variable

2012-02-06 06:03:16 +00:00

subr_module.c

…

subr_msgbuf.c

- Clean up timestamps in msgbuf code. The timestamps should now be

2012-03-19 00:36:32 +00:00

subr_param.c

- Mark some sysctls with CTLFLAG_TUN flag instead of CTLFLAG_RDTUN.

2012-09-03 09:26:56 +00:00

subr_pcpu.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

subr_power.c

…

subr_prf.c

Fix double vision syndrome (read: double output) when in the

2011-10-16 14:16:46 +00:00

subr_prof.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

subr_rman.c

Unlock in the error path to prevent a lock leak.

2012-05-31 17:27:05 +00:00

subr_rtc.c

Core structure and functions to support a feed-forward clock within the kernel.

2011-11-19 14:10:16 +00:00

subr_sbuf.c

r222015 introduced a new assertion that the size of a fixed-length sbuf

2011-08-19 08:29:10 +00:00

subr_scanf.c

Xen netback driver rewrite.

2012-01-26 16:35:09 +00:00

subr_sglist.c

…

subr_sleepqueue.c

Tweak the commit message in case of panic for sleeping from threads

2012-09-12 22:05:54 +00:00

subr_smp.c

Another fixe for r236772.

2012-06-11 18:47:26 +00:00

subr_stack.c

Constify stack argument for functions that don't modify it.

2011-11-16 19:06:55 +00:00

subr_syscall.c

Move the checks for td_pinned, td_critnest, TDP_NOFAULTING and

2012-09-08 18:35:15 +00:00

subr_taskqueue.c

Shorten the name of the fast SWI taskqueue to "fast taskq" so that

2012-08-28 13:35:37 +00:00

subr_trap.c

Move the checks for td_pinned, td_critnest, TDP_NOFAULTING and

2012-09-08 18:35:15 +00:00

subr_turnstile.c

Improve check coverage about idle threads.

2012-09-12 22:10:53 +00:00

subr_uio.c

After the PHYS_TO_VM_PAGE() function was de-inlined, the main reason

2012-08-05 14:11:42 +00:00

subr_unit.c

Correct double "the the"

2012-09-14 21:28:56 +00:00

subr_witness.c

- Unlike cache invalidation and TLB demapping IPIs, reading registers from

2012-08-29 16:56:50 +00:00

sys_capability.c

Style: move opt_*.h includes in the proper place.

2012-06-10 20:22:10 +00:00

sys_generic.c

The variable 'error' in sys_poll() is initialized in declaration to value

2012-06-17 13:03:50 +00:00

sys_pipe.c

I am comparing current pipe code with the one in 8.3-STABLE r236165,

2012-07-31 05:48:35 +00:00

sys_procdesc.c

Fix panic in procdesc that can be triggered in the following scenario:

2012-09-01 11:21:56 +00:00

sys_process.c

Always initialize pl_event.

2012-08-08 00:20:30 +00:00

sys_socket.c

Add the fo_chown and fo_chmod methods to struct fileops and use them

2011-08-16 20:07:47 +00:00

syscalls.c

regen.

2012-08-17 02:47:16 +00:00

syscalls.master

Implement syscall clock_getcpuclockid2, so we can get a clock id

2012-08-17 02:26:31 +00:00

systrace_args.c

Implement syscall clock_getcpuclockid2, so we can get a clock id

2012-08-17 02:26:31 +00:00

sysv_ipc.c

…

sysv_msg.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sysv_sem.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

sysv_shm.c

Close a race due to dropping of the map lock between creating a map entry

2012-02-19 00:28:49 +00:00

tty_compat.c

…

tty_info.c

Fix whitespace inconsistencies in TTY code.

2012-02-06 18:15:46 +00:00

tty_inq.c

Use strchr() and strrchr().

2012-01-02 12:12:10 +00:00

tty_outq.c

Fix whitespace inconsistencies in the TTY layer and its drivers owned by me.

2011-06-26 18:26:20 +00:00

tty_pts.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

tty_tty.c

…

tty_ttydisc.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

tty.c

In tty_makedev() the following construction:

2012-06-18 07:34:38 +00:00

uipc_accf.c

…

uipc_cow.c

…

uipc_debug.c

…

uipc_domain.c

Catch up with r195837 (2.5 years ago) which renamed net_add_domain() to domain_add().

2012-02-23 17:47:19 +00:00

uipc_mbuf2.c

…

uipc_mbuf.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

uipc_mqueue.c

Remove unused thread argument to vrecycle().

2012-04-23 14:10:34 +00:00

uipc_sem.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

uipc_shm.c

Export some more useful info about shared memory objects to userland

2012-04-01 18:22:48 +00:00

uipc_sockbuf.c

Document a large number of currently undocumented sysctls. While here

2011-12-13 00:38:50 +00:00

uipc_socket.c

In soreceive_generic() remove the optimization for the case when

2012-09-02 07:33:52 +00:00

uipc_syscalls.c

After the PHYS_TO_VM_PAGE() function was de-inlined, the main reason

2012-08-05 14:11:42 +00:00

uipc_usrreq.c

Supply the pr_ctloutput method for local datagram sockets,

2012-09-07 21:06:54 +00:00

vfs_acl.c

In order to maximize the re-usability of kernel code in user space this

2011-09-16 13:58:51 +00:00

vfs_aio.c

Add 32-bit compat code for AIO kevent flags introduced in revision 230857.

2012-02-05 04:49:31 +00:00

vfs_bio.c

Fix typo [1]. Use commas to separate flag printouts, in style with

2012-06-02 19:39:12 +00:00

vfs_cache.c

Post r230394, the Lookup RPC counts for both NFS clients increased

2012-03-03 01:06:54 +00:00

vfs_cluster.c

Correct a KASSERT message.

2012-08-15 22:12:01 +00:00

vfs_default.c

When synchronously syncing a device (MNT_WAIT), wait for buffers

2012-06-09 22:26:53 +00:00

vfs_export.c

…

vfs_extattr.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

vfs_hash.c

…

vfs_init.c

Modify vfs_register() to use a hash calculation

2011-09-13 21:01:26 +00:00

vfs_lookup.c

Add MNTK_LOOKUP_EXCL_DOTDOT struct mount flag, which specifies to the

2012-09-09 19:11:52 +00:00

vfs_mount.c

Add a facility for vgone() to inform the set of subscribed mounts

2012-09-09 19:17:15 +00:00

vfs_mountroot.c

Fix found places where uio_resid is truncated to int.

2012-02-21 01:05:12 +00:00

vfs_subr.c

Remove all the checks on curthread != NULL with the exception of some MD

2012-09-13 22:26:22 +00:00

vfs_syscalls.c

Reorder the managament of advisory locks on open files so that the advisory

2012-07-31 18:25:00 +00:00

vfs_vnops.c

Reorder the managament of advisory locks on open files so that the advisory

2012-07-31 18:25:00 +00:00

vnode_if.src

Introduce VOP_UNP_BIND(), VOP_UNP_CONNECT(), and VOP_UNP_DETACH()

2012-02-29 21:38:31 +00:00