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freebsd-nq/sys/kern
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Konstantin Belousov 396a0d4455 Do not wake up sleeping thread in reschedule_signals() if the signal 
is blocked.  The spurious wakeup might result in spurious EINTR.

The reschedule_signals() function is called when the calling thread
has the signal mask changed.  For each newly blocked signal, we try to
find a thread which might have the signal not blocked.  If no such
thread exists, sigtd() returns random thread, which must not be waken
up.  I decided that re-checking, as suggested by PR submitter, is more
reasonable change than to change sigtd() interface, due to other uses
of sigtd().  signotify() already performs this check.

Submitted by:	Duane <parakleta@darkreality.org>
PR:	219228
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-05-12 15:34:59 +00:00
..
bus_if.m "Buses" is the preferred plural of "bus" 2017-01-15 17:54:01 +00:00
capabilities.conf Update capabilities.conf comment 2016-09-08 14:04:04 +00:00
clock_if.m
cpufreq_if.m
device_if.m Import the 'iflib' API library for network drivers. From the author: 2016-05-18 04:35:58 +00:00
genassym.sh Don't prefix zero with 0x in assym.s. 2017-04-13 15:43:44 +00:00
imgact_aout.c
imgact_binmisc.c tighten buffer bounds in imgact_binmisc_populate_interp 2017-03-21 18:02:14 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Add support for capturing 'struct ptrace_lwpinfo' for signals 2017-03-30 18:21:36 +00:00
imgact_gzip.c
imgact_shell.c
inflate.c ANSIfy inflate.c 2016-10-04 17:57:30 +00:00
init_main.c Bump struct thread alignment to 32. 2017-02-07 17:03:22 +00:00
init_sysent.c Hook up new audit event identifiers for various non-Orange Book/CAPP 2017-03-29 22:33:56 +00:00
kern_acct.c Revert r312119 and reword the intent to fix -Wshadow issues 2017-01-15 09:25:33 +00:00
kern_alq.c
kern_clock.c Initialize 'ticks' earlier in boot after 'hz' is set. 2016-11-22 01:02:59 +00:00
kern_clocksource.c Remove cpu_deepest_sleep variable. 2017-02-24 16:11:55 +00:00
kern_condvar.c Introduce SCHEDULER_STOPPED_TD for use when the thread pointer was already read 2017-02-17 06:45:04 +00:00
kern_conf.c Undo r309891. Konstantin is right in that this condition normally 2016-12-12 19:11:04 +00:00
kern_cons.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
kern_context.c
kern_cpu.c Add an EARLY_AP_STARTUP option to start APs earlier during boot. 2016-05-14 18:22:52 +00:00
kern_cpuset.c Extend cpuset_get/setaffinity() APIs 2017-05-03 18:41:08 +00:00
kern_ctf.c Fix improper use of "its". 2016-11-08 23:59:41 +00:00
kern_descrip.c kern_descrip: Move kinfo_ofile size assert under COMPAT_FREEBSD7 2017-04-07 05:00:09 +00:00
kern_dtrace.c
kern_dump.c Add support for encrypted kernel crash dumps. 2016-12-10 16:20:39 +00:00
kern_environment.c
kern_et.c Add labels to sysctls related to clocks. 2016-12-14 12:56:58 +00:00
kern_event.c Use designated initializers for kevent_copyops. 2017-03-14 09:25:01 +00:00
kern_exec.c Apply MADV_FREE to exec_map entries only after a lowmem event. 2017-02-15 01:50:58 +00:00
kern_exit.c Avoid reusing p_ksi while it is on queue. 2017-03-12 13:58:51 +00:00
kern_fail.c kern_fail: Allow sleeping for more than 2147483/hz seconds 2017-03-21 22:41:37 +00:00
kern_ffclock.c
kern_fork.c - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
kern_gzio.c
kern_hhook.c Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00
kern_idle.c
kern_intr.c Extend cpuset_get/setaffinity() APIs 2017-05-03 18:41:08 +00:00
kern_jail.c Use inet_ntoa_r() instead of inet_ntoa() throughout the kernel 2017-02-16 20:47:41 +00:00
kern_khelp.c
kern_kthread.c Re-schedule signals after kthread exits, since apparently there are 2016-08-10 13:47:12 +00:00
kern_ktr.c
kern_ktrace.c Ktracing kevent(2) calls with unusual arguments might leads to an 2017-03-12 13:48:24 +00:00
kern_linker.c In linker_load_file() print name of a file that failed to load. 2017-03-09 00:56:07 +00:00
kern_lock.c lockmgr: implement fast path 2017-02-12 09:49:44 +00:00
kern_lockf.c put very expensive sanity checks of advisory locks under DIAGNOSTIC 2017-01-30 15:20:13 +00:00
kern_lockstat.c mtx: microoptimize lockstat handling in __mtx_lock_sleep 2017-02-17 14:55:59 +00:00
kern_loginclass.c
kern_malloc.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
kern_mbuf.c Import the 'iflib' API library for network drivers. From the author: 2016-05-18 04:35:58 +00:00
kern_mib.c All these files need sys/vmmeter.h, but now they got it implicitly 2017-04-17 17:07:00 +00:00
kern_module.c
kern_mtxpool.c
kern_mutex.c KDTRACE_HOOKS isn't guaranteed to be defined. Change to check to see 2017-02-24 01:39:08 +00:00
kern_ntptime.c ANSIfy kern_ntptime.c 2017-01-25 20:22:32 +00:00
kern_numa.c Remove unneeded include of vm_phys.h. 2017-04-17 16:51:04 +00:00
kern_osd.c
kern_physio.c
kern_pmc.c Cast values to (int) before comparing them to the range of the 2017-02-24 01:39:12 +00:00
kern_poll.c
kern_priv.c
kern_proc.c Use atop() instead of OFF_TO_IDX() for convertion of addresses or 2017-03-14 19:39:17 +00:00
kern_procctl.c reaper: Make REAPER_KILL_SUBTREE actually work. 2016-12-14 22:49:20 +00:00
kern_prot.c proc: perform a lockless check in sys_issetugid 2017-01-24 21:48:57 +00:00
kern_racct.c try to fix RACCT_RSS accounting 2017-02-14 13:54:05 +00:00
kern_rangelock.c
kern_rctl.c
kern_resource.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
kern_rmlock.c Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
kern_rwlock.c locks: ensure proper barriers are used with atomic ops when necessary 2017-03-01 05:06:21 +00:00
kern_sdt.c
kern_sema.c
kern_sendfile.c Make sendfile(2) more robust against file change. This fixes a possible 2017-03-24 16:01:19 +00:00
kern_sharedpage.c
kern_shutdown.c Fix compilation of r314784 on 32 bit. 2017-03-06 22:32:56 +00:00
kern_sig.c Do not wake up sleeping thread in reschedule_signals() if the signal 2017-05-12 15:34:59 +00:00
kern_switch.c Add comments explaining unobvious td_critnest adjustments in 2017-01-22 19:41:42 +00:00
kern_sx.c locks: ensure proper barriers are used with atomic ops when necessary 2017-03-01 05:06:21 +00:00
kern_synch.c - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
kern_syscalls.c
kern_sysctl.c Print out name of non-dynamic sysctl in sysctl_remove_oid_locked 2017-03-22 05:27:20 +00:00
kern_tc.c Add missing pieces of r315280 2017-03-14 22:02:02 +00:00
kern_thr.c Defer ptracestop() signals that cannot be delivered immediately 2017-02-20 15:53:16 +00:00
kern_thread.c Add asserts to verify stability of struct proc and struct thread layouts. 2017-04-27 21:24:50 +00:00
kern_time.c Add clock_nanosleep() 2017-03-19 00:51:12 +00:00
kern_timeout.c When draining a callout, don't clear CALLOUT_ACTIVE while it is running. 2017-03-15 00:29:27 +00:00
kern_umtx.c When the RTC is adjusted, reevaluate absolute sleep times based on the RTC 2017-03-14 19:06:44 +00:00
kern_uuid.c
kern_xxx.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
ksched.c
link_elf_obj.c Reduce stack usage in link_elf_load_file(), allocating struct nameidata. 2017-03-09 00:45:15 +00:00
link_elf.c
linker_if.m
Make.tags.inc
Makefile Don't create pointless backups of generated files in "make sysent". 2016-07-28 21:29:04 +00:00
makesyscalls.sh Remove SVR4 (System V Release 4) binary compatibility support. 2017-02-28 05:14:42 +00:00
md4c.c crypto routines: Hint minimum buffer sizes to the compiler 2016-05-26 19:29:29 +00:00
md5c.c crypto routines: Hint minimum buffer sizes to the compiler 2016-05-26 19:29:29 +00:00
msi_if.m Introduce MSI and MSI-X support to intrng. This adds a new msi device 2016-05-16 09:11:40 +00:00
p1003_1b.c
pic_if.m INTRNG: Rework handling with resources. Partially revert r301453. 2016-08-19 10:52:39 +00:00
posix4_mib.c
sched_4bsd.c move thread switch tracing from mi_switch to sched_switch 2017-03-23 08:57:04 +00:00
sched_ule.c move thread switch tracing from mi_switch to sched_switch 2017-03-23 08:57:04 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c
subr_acl_posix1e.c
subr_autoconf.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_blist.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_bufring.c
subr_bus_dma.c
subr_bus.c "Buses" is the preferred plural of "bus" 2017-01-15 17:54:01 +00:00
subr_busdma_bufalloc.c
subr_capability.c
subr_clock.c Use time_t for intermediate values to avoid overflow in clock_ts_to_ct 2017-01-24 18:05:29 +00:00
subr_counter.c Zero return value when counter_rate() switches over to next second and 2016-12-13 20:11:45 +00:00
subr_devmap.c Include machine/acle-compat.h in cdefs.h on arm if the compiler doesn't 2016-05-25 19:44:26 +00:00
subr_devstat.c Add support for managing Shingled Magnetic Recording (SMR) drives. 2016-05-19 14:08:36 +00:00
subr_disk.c
subr_dummy_vdso_tc.c
subr_eventhandler.c
subr_fattime.c
subr_firmware.c Fix improper use of "its". 2016-11-08 23:59:41 +00:00
subr_gtaskqueue.c Extend cpuset_get/setaffinity() APIs 2017-05-03 18:41:08 +00:00
subr_hash.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_hints.c
subr_intr.c - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
subr_kdb.c
subr_kobj.c - Also outside of the KOBJOPLOOKUP macro - which in turn is used by 2017-05-08 21:08:39 +00:00
subr_lock.c locks: follow up r313386 2017-02-07 16:01:07 +00:00
subr_log.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_mbpool.c
subr_mchain.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_module.c
subr_msgbuf.c
subr_param.c Initialize 'ticks' earlier in boot after 'hz' is set. 2016-11-22 01:02:59 +00:00
subr_pcpu.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_pctrie.c
subr_power.c
subr_prf.c Provide a comment on why stdio.h needs to be included. 2017-02-28 21:27:51 +00:00
subr_prof.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_rman.c Add new bus methods for mapping resources. 2016-05-20 17:57:47 +00:00
subr_rtc.c Make resettodr_lock accessible outside subr_rtc.c. Protect 2016-09-21 10:15:08 +00:00
subr_sbuf.c
subr_scanf.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
subr_sfbuf.c subr_sfbus.c need sys/proc.h for struct thread definition. 2017-02-07 17:31:24 +00:00
subr_sglist.c Add sglist functions for working with arrays of VM pages. 2016-05-20 23:28:43 +00:00
subr_sleepqueue.c Add missing pieces of r315280 2017-03-14 22:02:02 +00:00
subr_smp.c Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
subr_stack.c
subr_syscall.c - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
subr_taskqueue.c Implement taskqueue_poll_is_busy() for use by the LinuxKPI. 2017-03-02 12:20:23 +00:00
subr_terminal.c Oops, my fix for bright colors broke bright black some more (in cases 2017-03-27 10:48:28 +00:00
subr_trap.c - Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter 2017-04-17 17:34:47 +00:00
subr_turnstile.c ddb(4): Add sleepchains to "show allchains" 2016-10-22 18:02:20 +00:00
subr_uio.c Switch copyout_map() to use vm_mmap_object() instead of vm_mmap(). 2017-02-12 20:54:31 +00:00
subr_unit.c Clean up trailing whitespace 2017-01-14 04:16:13 +00:00
subr_vmem.c subr_vmem: Fix double-free in error case of vmem_create 2016-05-11 23:16:11 +00:00
subr_witness.c Make witness_warn() always print to the console. 2017-02-05 02:27:04 +00:00
sys_capability.c capsicum: perform copyout without the fildesc lock held in sys_cap_ioctls_get 2016-10-21 16:12:23 +00:00
sys_generic.c Fix NULL pointer dereference and panic with shm file pread/pwrite. 2017-03-10 10:09:44 +00:00
sys_pipe.c Generate syscall tables and update pipe() implementation after r302094. 2016-06-22 21:18:19 +00:00
sys_procdesc.c Hide the boottime and bootimebin globals, provide the getboottime(9) 2016-07-27 11:08:59 +00:00
sys_process.c Add support for capturing 'struct ptrace_lwpinfo' for signals 2017-03-30 18:21:36 +00:00
sys_socket.c Set MORETOCOME for AIO write requests on a socket. 2017-01-06 23:41:45 +00:00
syscalls.c Regenerate syscall files for r315526 2017-03-19 00:54:24 +00:00
syscalls.master Change the size argument of __getcwd() to size_t. 2017-04-06 23:40:13 +00:00
systrace_args.c Regen after r316594. 2017-04-06 23:40:51 +00:00
sysv_ipc.c
sysv_msg.c Audit arguments to System V IPC system calls implementing sempahores, 2017-03-30 22:26:15 +00:00
sysv_sem.c Audit arguments to System V IPC system calls implementing sempahores, 2017-03-30 22:26:15 +00:00
sysv_shm.c Audit arguments to System V IPC system calls implementing sempahores, 2017-03-30 22:26:15 +00:00
tty_compat.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
tty_info.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
tty_inq.c Check tty_gone() after allocating IO buffers. The tty lock has to be 2017-01-13 16:37:38 +00:00
tty_outq.c Check tty_gone() after allocating IO buffers. The tty lock has to be 2017-01-13 16:37:38 +00:00
tty_pts.c
tty_tty.c
tty_ttydisc.c
tty.c Correct the comments about how much buffer is allocated. 2017-01-13 17:03:23 +00:00
uipc_accf.c Use correct size type in do_setopt_accept_filter 2016-10-12 00:56:49 +00:00
uipc_debug.c
uipc_domain.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
uipc_mbuf2.c Remove writability requirement for single-mbuf, contiguous-range 2017-01-12 06:38:03 +00:00
uipc_mbuf.c m_mbuftouio() doesn't modify the mbuf. 2017-03-07 19:00:50 +00:00
uipc_mbufhash.c
uipc_mqueue.c Audit arguments to POSIX message queues, semaphores, and shared memory. 2017-03-31 13:43:00 +00:00
uipc_sem.c Audit arguments to POSIX message queues, semaphores, and shared memory. 2017-03-31 13:43:00 +00:00
uipc_shm.c Audit arguments to POSIX message queues, semaphores, and shared memory. 2017-03-31 13:43:00 +00:00
uipc_sockbuf.c Fix the build. 2017-04-14 10:21:38 +00:00
uipc_socket.c Remove unnecessary check for NULL mbuf in soreceive_generic(). 2017-04-25 19:54:34 +00:00
uipc_syscalls.c Add kern_listen(), kern_shutdown(), and kern_socket(), and use them 2017-01-30 12:57:22 +00:00
uipc_usrreq.c For non-listening AF_UNIX sockets return error code EOPNOTSUPP to match 2017-01-25 22:26:45 +00:00
vfs_acl.c Add system-call argument auditing for ACL-related system calls. 2017-03-30 22:00:58 +00:00
vfs_aio.c Rework r313352. 2017-02-13 09:04:38 +00:00
vfs_bio.c Make it possible to terminate "show lockedbufs" by pressing "q". 2017-04-23 22:20:25 +00:00
vfs_cache.c cache: stop holding the ncneg_hot lock across purging 2017-05-04 03:11:59 +00:00
vfs_cluster.c Move bogus_page declaration to vm_page.h and initialization to vm_page.c. 2017-01-04 22:27:19 +00:00
vfs_default.c Relax the locking requirements for vm_object_page_noreuse(). While 2017-03-15 17:43:45 +00:00
vfs_export.c Fix build when no INET and INET6 in kernel config. 2016-11-17 16:13:30 +00:00
vfs_extattr.c
vfs_hash.c Add vfs_hash_ref(9) function, which finds a vnode by the hash value 2016-05-11 06:32:22 +00:00
vfs_init.c Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00
vfs_lookup.c Use UMA_ALIGN_PTR instead of sizeof(void *) for zone alignment. 2017-03-15 18:23:32 +00:00
vfs_mount.c Do not allocate struct statfs on kernel stack. 2017-01-05 17:19:26 +00:00
vfs_mountroot.c Make root_mount_hold() work after boot. This is important for two 2017-02-06 20:44:34 +00:00
vfs_subr.c Add V_VMIO flag for vinvalbuf(9) to indicate that the flush request 2017-04-05 16:57:53 +00:00
vfs_syscalls.c Audit arguments to posix_fallocate(2) and posix_fadvise(2) system calls. 2017-03-31 14:17:14 +00:00
vfs_vnops.c Apply noexec mount option for mmap(PROT_EXEC). 2017-02-19 20:51:04 +00:00
vnode_if.src Renumber license clauses in sys/kern to avoid skipping #3 2016-09-15 13:16:20 +00:00