freebsd-skq

History

Alfred Perlstein 3eebd44d0c The change in r236456 (atomic_store_rel not locked) exposed a bug

in the ithread code where we could lose ithread interrupts if
intr_event_schedule_thread() is called while the ithread is already
running.  Effectively memory writes could be ordered incorrectly
such that the unatomic write of 0 to ithd->it_need (in ithread_loop)
could be delayed until after it was set to be triggered again by
intr_event_schedule_thread().

This was particularly a big problem for CAM because CAM optimizes
scheduling of ithreads such that it only signals camisr() when it
queues to an empty queue.  This means that additional completion
events would not unstick CAM and quickly lead to a complete lockup
of the CAM stack.

To fix this use atomics in all places where ithd->it_need is accessed.

Submitted by: delphij, mav
Obtained from: TrueOS, iXsystems
MFC After: 1 week

2013-07-04 05:53:05 +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 pipe2() system call.

2013-05-01 22:42:42 +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

Change the module name for the I/O provider to "kernel" from

2012-09-25 19:16:28 +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

Introduce a constant, ELF_NOTE_ROUNDSIZE, which evidently declare our

2013-05-01 14:59:16 +00:00

imgact_gzip.c

- Correct mispellings of the word necessary

2013-04-17 11:42:40 +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

MFP4 change 210763

2013-04-03 22:24:36 +00:00

init_sysent.c

aio_mlock() added:

2013-06-08 13:30:13 +00:00

kern_acct.c

acct: create a special plimit object and set it for exiting processes

2013-06-30 19:08:06 +00:00

kern_alq.c

The fix committed in r250951 replaced the reported panic with a deadlock... gold

2013-06-17 09:49:07 +00:00

kern_clock.c

Correct a bug that prevented deadlkres from (almost) ever firing.

2013-06-28 15:55:30 +00:00

kern_clocksource.c

- Make callout(9) tickless, relying on eventtimers(4) as backend for

2013-03-04 11:09:56 +00:00

kern_condvar.c

MFcalloutng:

2013-03-04 12:20:48 +00:00

kern_conf.c

Reject spaces and double quotation marks in device names. devctl(4)

2012-12-22 13:33:28 +00:00

kern_cons.c

cngetc: use cpu_spinwait to ease the cncheckc loop a tiny bit

2012-10-06 19:50:23 +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

Several improvements to rmlock(9). Many of these are based on patches

2013-06-25 18:44:15 +00:00

kern_ctf.c

Remove the support for using non-mpsafe filesystem modules.

2012-10-22 17:50:54 +00:00

kern_descrip.c

Plug up the lock lock leakage when exporting to a short buffer.

2013-07-01 03:27:14 +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

r249408 and r249436 cause a NULL pointer dereference on the CUBIEBOARD

2013-04-16 22:09:08 +00:00

kern_et.c

Fix incorrect assertion that caused panic when periodic-only timers used.

2013-03-13 06:42:01 +00:00

kern_event.c

Change callout use counter to use C11 atomics.

2013-06-16 09:30:35 +00:00

kern_exec.c

Don't busy the page unless we are likely to release the object lock.

2013-06-06 06:17:20 +00:00

kern_exit.c

Merge Capsicum overhaul:

2013-03-02 00:53:12 +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

Include PID in the error message which is printed when the maxproc limit

2013-04-19 15:19:29 +00:00

kern_gzio.c

Remove the support for using non-mpsafe filesystem modules.

2012-10-22 17:50:54 +00:00

kern_hhook.c

Move hhook's per-vnet initialisation to an earlier SYSINIT SI_SUB stage to

2013-06-15 10:08:34 +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

The change in r236456 (atomic_store_rel not locked) exposed a bug

2013-07-04 05:53:05 +00:00

kern_jail.c

Refine the "nojail" rc keyword, adding "nojailvnet" for files that don't

2013-05-19 04:10:34 +00:00

kern_khelp.c

Cleanup and simplification in khelp_{register|deregister}_helper(). No

2013-06-15 06:45:17 +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

ktr: correctly handle possible wrap-around in the boot buffer

2013-02-08 07:29:07 +00:00

kern_ktrace.c

Remove the support for using non-mpsafe filesystem modules.

2012-10-22 17:50:54 +00:00

kern_linker.c

Remove the support for using non-mpsafe filesystem modules.

2012-10-22 17:50:54 +00:00

kern_lock.c

A few mostly cosmetic nits to aid in debugging:

2013-06-25 20:23:08 +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

Try to improve r242655 take III: move these SYSCTLs describing the kernel

2013-02-04 09:35:48 +00:00

kern_mbuf.c

Initialising the new fibnum field to a known value turns out to

2013-05-24 02:18:37 +00:00

kern_mib.c

fix some fat-fingering in r246246

2013-02-02 14:19:50 +00:00

kern_module.c

Fix a typo.

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

kern_mtxpool.c

…

kern_mutex.c

A few mostly cosmetic nits to aid in debugging:

2013-06-25 20:23:08 +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

Add dev_strategy_csw() function, which is similar to dev_strategy()

2013-03-27 11:34:27 +00:00

kern_pmc.c

Add software PMC support.

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

kern_poll.c

Increase the (arbitrary) limit for the number of packets per tick

2013-05-22 16:32:18 +00:00

kern_priv.c

Style nits.

2013-05-19 23:30:24 +00:00

kern_proc.c

2013-04-14 20:03:48 +00:00

kern_prot.c

Style fix

2012-11-14 10:33:12 +00:00

kern_racct.c

Accessing td_state requires thread lock to be held.

2013-03-14 23:20:18 +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

Add CPU percentage limit enforcement to RCTL. The resouce name is "pcpu".

2012-10-26 16:01:08 +00:00

kern_resource.c

Call sched_prio() to immediately change the priority of the thread in

2013-03-07 02:53:29 +00:00

kern_rmlock.c

Several improvements to rmlock(9). Many of these are based on patches

2013-06-25 18:44:15 +00:00

kern_rwlock.c

A few mostly cosmetic nits to aid in debugging:

2013-06-25 20:23:08 +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

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

kern_shutdown.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

kern_sig.c

Fix memory leak in coredump().

2013-04-05 20:24:51 +00:00

kern_switch.c

Add a comment on why inlining critical_enter() may not be a good idea

2012-12-09 04:54:22 +00:00

kern_sx.c

A few mostly cosmetic nits to aid in debugging:

2013-06-25 20:23:08 +00:00

kern_synch.c

Correct the comment above _sleep() function which still mentions 'timo'

2013-06-28 21:04:15 +00:00

kern_syscalls.c

…

kern_sysctl.c

- Use strdup(9) instead of reimplementing it.

2013-03-01 18:49:14 +00:00

kern_tc.c

- Make callout(9) tickless, relying on eventtimers(4) as backend for

2013-03-04 11:09:56 +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

Another NFS SIGSTOP related fix: Ignore thread suspend requests due to

2013-03-21 14:06:27 +00:00

kern_time.c

Make kern_nanosleep() and pause_sbt() to use per-CPU sleep queues.

2013-03-12 06:58:49 +00:00

kern_timeout.c

Cache the callout precision argument as part of the informations required

2013-03-25 09:43:50 +00:00

kern_umtx.c

Fix two issues with the spin loops in the umtx(2) implementation.

2013-06-13 09:33:22 +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

Remove the support for using non-mpsafe filesystem modules.

2012-10-22 17:50:54 +00:00

link_elf.c

Remove the support for using non-mpsafe filesystem modules.

2012-10-22 17:50:54 +00:00

linker_if.m

…

Make.tags.inc

- Trim an unused and bogus Makefile for mount_smbfs.

2013-06-28 21:00:08 +00:00

Makefile

Continue to introduce Capsicum Capability Mode support:

2011-03-01 13:28:27 +00:00

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

Add CPU percentage limit enforcement to RCTL. The resouce name is "pcpu".

2012-10-26 16:01:08 +00:00

sched_ule.c

Point args[0] not at the thread that is ending but at the one that

2013-04-15 17:21:02 +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

Retire PCONFIG and leave the priority of thread0 alone when waiting for

2011-01-06 22:09:37 +00:00

subr_blist.c

Remove reference to the rlist code from comments, and fix a typo visible

2013-02-05 20:08:33 +00:00

subr_bufring.c

…

subr_bus_dma.c

Move an assertion to the right spot; only bus_dmamap_load_mbuf(9)

2013-06-01 11:42:47 +00:00

subr_bus.c

Make detaching drivers from PCI devices more robust. While here, fix a

2013-06-27 20:21:54 +00:00

subr_busdma_bufalloc.c

Create an architecture-agnostic buffer pool manager that uses uma(9) to

2012-12-20 00:34:54 +00:00

subr_clock.c

Improve style and wording of comments and sysctl descriptions [1].

2011-01-09 14:34:56 +00:00

subr_counter.c

Fix issues with zeroing and fetching the counters, on x86 and ppc64.

2013-07-01 02:48:27 +00:00

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

Several improvements to rmlock(9). Many of these are based on patches

2013-06-25 18:44:15 +00:00

subr_log.c

MFcalloutng (r244255 by mav, with minor changes):

2013-03-04 16:07:55 +00:00

subr_mbpool.c

…

subr_mchain.c

Mechanically substitute flags from historic mbuf allocator with

2012-12-05 08:04:20 +00:00

subr_module.c

Provide convenience function for obtaining MODINFO_ADDR and MODINFO_SIZE

2011-02-09 19:08:21 +00:00

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

Implement the concept of the unmapped VMIO buffers, i.e. buffers which

2013-03-19 14:13:12 +00:00

subr_pcpu.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

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

subr_pctrie.c

- Add a new general purpose path-compressed radix trie which can be used

2013-05-12 04:05:01 +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

A library function shall not set errno to 0.

2013-05-16 18:13:10 +00:00

subr_scanf.c

Xen netback driver rewrite.

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

subr_sglist.c

…

subr_sleepqueue.c

Partially revert r195702. Deferring stops is now implemented via a set of

2013-03-18 17:23:58 +00:00

subr_smp.c

- Correctly handle EWOULDBLOCK in quiesce_cpus

2012-12-19 20:08:06 +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

Fix build on ARM (and probably other platforms)

2012-12-28 06:52:53 +00:00

subr_taskqueue.c

Extend taskqueue(9) to enable per-taskqueue callbacks.

2013-03-23 15:11:53 +00:00

subr_trap.c

Partially revert r195702. Deferring stops is now implemented via a set of

2013-03-18 17:23:58 +00:00

subr_turnstile.c

Update the comment: we do show the backtrace of misbehaving thread.

2013-02-17 21:37:32 +00:00

subr_uio.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

subr_unit.c

Correct double "the the"

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

subr_vmem.c

- Add a general purpose resource allocator, vmem, from NetBSD. It was

2013-06-28 03:51:20 +00:00

subr_witness.c

- Fix a couple of inverted panic messages for shared/exclusive mismatches

2013-06-03 17:41:11 +00:00

sys_capability.c

Use proper malloc type for ioctls white-list.

2013-05-23 21:07:26 +00:00

sys_generic.c

Help out gcc. clang understands.

2013-06-29 04:35:04 +00:00

sys_pipe.c

Add pipe2() system call.

2013-05-01 22:42:42 +00:00

sys_procdesc.c

Add the wait6(2) system call. It takes POSIX waitid()-like process

2012-11-13 12:52:31 +00:00

sys_process.c

Switch some "low-hanging fruit" to acquire read lock on vmobjects

2013-04-08 19:58:32 +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

aio_mlock() added:

2013-06-08 13:30:13 +00:00

syscalls.master

Add new system call - aio_mlock(). The name speaks for itself. It allows

2013-06-08 13:27:57 +00:00

systrace_args.c

aio_mlock() added:

2013-06-08 13:30:13 +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

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +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

Allow O_CLOEXEC in posix_openpt() flags.

2013-03-21 21:39:15 +00:00

tty_tty.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

tty_ttydisc.c

Correct SIGTTIN handling.

2012-10-25 09:05:21 +00:00

tty.c

Merge Capsicum overhaul:

2013-03-02 00:53:12 +00:00

uipc_accf.c

…

uipc_cow.c

Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/

2011-02-25 10:11:01 +00:00

uipc_debug.c

…

uipc_domain.c

- Implement two new system calls:

2013-03-02 21:11:30 +00:00

uipc_mbuf2.c

Mechanically substitute flags from historic mbuf allocator with

2012-12-05 08:04:20 +00:00

uipc_mbuf.c

Fix bug in m_split() in a case when split len matches len of the

2013-03-29 14:10:40 +00:00

uipc_mqueue.c

mqueue,ksem,shm: Fix race condition with setting UF_EXCLOSE.

2013-04-07 15:26:09 +00:00

uipc_sem.c

2013-05-03 21:11:57 +00:00

uipc_shm.c

mqueue,ksem,shm: Fix race condition with setting UF_EXCLOSE.

2013-04-07 15:26:09 +00:00

uipc_sockbuf.c

When a previous call to sbsndptr() leaves sb->sb_sndptroff at the start of an

2013-06-19 03:08:01 +00:00

uipc_socket.c

When the accept queue is full print the number of already pending

2013-05-08 14:13:14 +00:00

uipc_syscalls.c

Item 1 in r248830 causes earlier exits from the sendfile(2), before

2013-05-09 16:05:51 +00:00

uipc_usrreq.c

Fix receiving fd over unix socket broken in r247740.

2013-07-02 07:36:04 +00:00

vfs_acl.c

Prezero the acl structure which is to be copied to usermode, to avoid

2013-02-06 15:18:46 +00:00

vfs_aio.c

Add new system call - aio_mlock(). The name speaks for itself. It allows

2013-06-08 13:27:57 +00:00

vfs_bio.c

- Add a general purpose resource allocator, vmem, from NetBSD. It was

2013-06-28 03:51:20 +00:00

vfs_cache.c

When renaming a directory from one parent directory to another,

2013-03-20 17:57:00 +00:00

vfs_cluster.c

- Convert the bufobj lock to rwlock.

2013-05-31 00:43:41 +00:00

vfs_default.c

- Convert the bufobj lock to rwlock.

2013-05-31 00:43:41 +00:00

vfs_export.c

Further refine the handling of stop signals in the NFS client. The

2013-02-21 19:02:50 +00:00

vfs_extattr.c

Use a shared lock for VOP_GETEXTATTR, as it is a read-like operation.

2013-03-30 15:09:04 +00:00

vfs_hash.c

Add exported vfs_hash_index() function, which calculates the canonical

2013-01-14 05:41:40 +00:00

vfs_init.c

Revert accidental commit.

2013-06-29 05:05:57 +00:00

vfs_lookup.c

Do not call the VOP_LOOKUP() for the doomed directory vnode. The

2013-04-01 09:59:38 +00:00

vfs_mount.c

Revert r251590. It unexpectedly broke the build and there were some

2013-06-10 15:22:27 +00:00

vfs_mountroot.c

post mountroot event after a real/final root is mounted

2013-03-23 08:59:34 +00:00

vfs_subr.c

Be more generous when donating the current thread time to the owner of

2013-06-03 17:36:43 +00:00

vfs_syscalls.c

- Fix nullfs vnode reference leak in nullfs_reclaim_lowervp(). The

2013-05-11 11:17:44 +00:00

vfs_vnops.c

Style fixes to vn_ioctl().

2013-05-31 16:15:22 +00:00

vnode_if.src

remove vop_lookup_pre and vop_lookup_post

2012-11-22 10:36:10 +00:00