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go/src/runtime
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Russ Cox 1f77db94f8 runtime: do not call wakep from enlistWorker, to avoid possible deadlock 
We have seen one instance of a production job suddenly spinning to
100% CPU and becoming unresponsive. In that one instance, a SIGQUIT
was sent after 328 minutes of spinning, and the stacks showed a single
goroutine in "IO wait (scan)" state.

Looking for things that might get stuck if a goroutine got stuck in
scanning a stack, we found that injectglist does:

	lock(&sched.lock)
	var n int
	for n = 0; glist != nil; n++ {
		gp := glist
		glist = gp.schedlink.ptr()
		casgstatus(gp, _Gwaiting, _Grunnable)
		globrunqput(gp)
	}
	unlock(&sched.lock)

and that casgstatus spins on gp.atomicstatus until the _Gscan bit goes
away. Essentially, this code locks sched.lock and then while holding
sched.lock, waits to lock gp.atomicstatus.

The code that is doing the scan is:

	if castogscanstatus(gp, s, s|_Gscan) {
		if !gp.gcscandone {
			scanstack(gp, gcw)
			gp.gcscandone = true
		}
		restartg(gp)
		break loop
	}

More analysis showed that scanstack can, in a rare case, end up
calling back into code that acquires sched.lock. For example:

	runtime.scanstack at proc.go:866
	calls runtime.gentraceback at mgcmark.go:842
	calls runtime.scanstack$1 at traceback.go:378
	calls runtime.scanframeworker at mgcmark.go:819
	calls runtime.scanblock at mgcmark.go:904
	calls runtime.greyobject at mgcmark.go:1221
	calls (*runtime.gcWork).put at mgcmark.go:1412
	calls (*runtime.gcControllerState).enlistWorker at mgcwork.go:127
	calls runtime.wakep at mgc.go:632
	calls runtime.startm at proc.go:1779
	acquires runtime.sched.lock at proc.go:1675

This path was found with an automated deadlock-detecting tool.
There are many such paths but they all go through enlistWorker -> wakep.

The evidence strongly suggests that one of these paths is what caused
the deadlock we observed. We're running those jobs with
GOTRACEBACK=crash now to try to get more information if it happens
again.

Further refinement and analysis shows that if we drop the wakep call
from enlistWorker, the remaining few deadlock cycles found by the tool
are all false positives caused by not understanding the effect of calls
to func variables.

The enlistWorker -> wakep call was intended only as a performance
optimization, it rarely executes, and if it does execute at just the
wrong time it can (and plausibly did) cause the deadlock we saw.

Comment it out, to avoid the potential deadlock.

Fixes #19112.
Unfixes #14179.

Change-Id: I6f7e10b890b991c11e79fab7aeefaf70b5d5a07b
Reviewed-on: https://go-review.googlesource.com/37093
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2017-02-15 21:22:36 +00:00
..
cgo runtime: add cgo support for GOARCH=mips{,le} 2016-12-14 23:52:33 +00:00
debug runtime/debug: don't run a GC when setting SetGCPercent negative 2017-02-10 18:28:37 +00:00
internal runtime/internal/atomic: crash on unaligned 64-bit ops on 32-bit MIPS 2016-11-22 02:05:07 +00:00
msan
pprof runtime/pprof: print newly added fields of runtime.MemStats 2017-02-15 21:14:37 +00:00
race runtime/race: allow TestFail to run longer than 0.00s 2016-11-07 02:55:52 +00:00
testdata runtime: add explicit (void) in C to avoid GCC 7 problem 2017-01-30 19:27:49 +00:00
trace os: use poller for file I/O 2017-02-15 19:31:55 +00:00
alg.go runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
append_test.go runtime: make append only clear uncopied memory 2016-10-04 22:40:20 +00:00
asm_386.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_amd64.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_amd64p32.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_arm64.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_arm.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_mips64x.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_mipsx.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_ppc64x.h
asm_ppc64x.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm_s390x.s runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
asm.s runtime: cull dead code 2016-08-22 16:41:34 +00:00
atomic_arm64.s
atomic_mips64x.s
atomic_mipsx.s runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
atomic_pointer.go runtime: perform write barrier before pointer write 2016-10-28 20:47:52 +00:00
atomic_ppc64x.s sync/atomic, runtime/internal/atomic: improve ppc64x atomics 2016-05-05 18:52:28 +00:00
callers_test.go
cgo_mmap.go runtime/cgo: use libc for sigaction syscalls when possible 2016-11-16 05:38:38 +00:00
cgo_ppc64x.go
cgo_sigaction.go runtime/cgo: use libc for sigaction syscalls when possible 2016-11-16 05:38:38 +00:00
cgo.go cmd/cgo, runtime, runtime/cgo: TSAN support for malloc 2016-05-25 23:22:24 +00:00
cgocall.go runtime: handle SIGPIPE in c-archive and c-shared programs 2017-02-03 20:07:36 +00:00
cgocallback.go
cgocheck.go runtime: access modules via a slice 2016-11-01 16:04:12 +00:00
chan_test.go all: don't call t.Fatal from a goroutine 2016-11-15 15:13:48 +00:00
chan.go runtime: perform write barriers on direct channel receive 2016-10-31 23:46:13 +00:00
chanbarrier_test.go
closure_test.go
compiler.go
complex_test.go
complex.go
cpuflags_amd64.go runtime: improve memmove for amd64 2016-10-06 10:21:58 +00:00
cpuidlow_amd64.s runtime: improve memmove for amd64 2016-10-06 10:21:58 +00:00
cpuprof.go runtime: mark several types go:notinheap 2016-10-15 17:58:20 +00:00
cputicks.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
crash_cgo_test.go runtime: don't skip TestCgoCallbackGC on FreeBSD 2016-12-05 18:10:50 +00:00
crash_nonunix_test.go runtime: if the test program hangs, try to get a stack trace 2016-06-15 15:03:48 +00:00
crash_test.go runtime: if runtime is stale while testing, show StaleReason 2017-02-13 23:46:12 +00:00
crash_unix_test.go all: sprinkle t.Parallel on some slow tests 2016-11-04 16:56:57 +00:00
debug.go
defs1_linux.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs1_netbsd_386.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs1_netbsd_amd64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs1_netbsd_arm.go runtime, cmd/link: fix netbsd/arm EABI support 2016-10-24 15:23:13 +00:00
defs1_solaris_amd64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs2_linux.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs3_linux.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_arm_linux.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_darwin_386.go
defs_darwin_amd64.go
defs_darwin_arm64.go
defs_darwin_arm.go
defs_darwin.go
defs_dragonfly_amd64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_dragonfly.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_freebsd_386.go runtime: sleep on CLOCK_MONOTONIC in futexsleep1 on freebsd 2016-10-01 01:25:21 +00:00
defs_freebsd_amd64.go runtime: sleep on CLOCK_MONOTONIC in futexsleep1 on freebsd 2016-10-01 01:25:21 +00:00
defs_freebsd_arm.go runtime: sleep on CLOCK_MONOTONIC in futexsleep1 on freebsd 2016-10-01 01:25:21 +00:00
defs_freebsd.go runtime: sleep on CLOCK_MONOTONIC in futexsleep1 on freebsd 2016-10-01 01:25:21 +00:00
defs_linux_386.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_amd64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_arm64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_arm.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_mips64x.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_mipsx.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
defs_linux_ppc64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_ppc64le.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux_s390x.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_linux.go
defs_nacl_386.go
defs_nacl_amd64p32.go
defs_nacl_arm.go
defs_netbsd_386.go
defs_netbsd_amd64.go
defs_netbsd_arm.go
defs_netbsd.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_openbsd_386.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_openbsd_amd64.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_openbsd_arm.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_openbsd.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_plan9_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
defs_plan9_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
defs_plan9_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
defs_solaris_amd64.go
defs_solaris.go runtime: unify handling of alternate signal stack 2016-09-26 04:07:31 +00:00
defs_windows_386.go
defs_windows_amd64.go
defs_windows.go
duff_386.s
duff_amd64.s
duff_arm64.s runtime, cmd/compile: implement and use DUFFCOPY on ARM64 2016-09-27 15:07:31 +00:00
duff_arm.s
duff_mips64x.s
duff_ppc64x.s
env_plan9.go
env_posix.go runtime: eliminate unnecessary type conversions 2016-03-07 20:53:27 +00:00
env_test.go
error.go cmd/compile: make panicwrap argument-free 2017-02-11 23:27:35 +00:00
example_test.go runtime: add Frames example 2017-02-13 06:10:35 +00:00
export_arm_test.go
export_futex_test.go
export_linux_test.go
export_mmap_test.go runtime: fetch physical page size from the OS 2016-09-06 21:05:50 +00:00
export_test.go runtime: speed up fastrand() % n 2017-02-14 00:01:22 +00:00
export_windows_test.go runtime: revert "do not call timeBeginPeriod on windows" 2016-04-09 16:11:41 +00:00
extern.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
fastlog2_test.go
fastlog2.go all: fix misspellings 2017-01-07 16:53:25 +00:00
fastlog2table.go
funcdata.h runtime: fix a typo in asssembly macro GO_RESULTS_INITIALIZED 2016-03-14 14:53:29 +00:00
futex_test.go
gc_test.go cmd/compile: do more type conversion inline 2016-11-02 21:33:03 +00:00
gcinfo_test.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
go_tls.h
HACKING.md runtime: expand HACKING.md 2017-01-06 18:30:36 +00:00
hash32.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
hash64.go runtime: add s390x support (modified files only) 2016-04-06 04:25:06 +00:00
hash_test.go runtime: remove TestCollisions from -short 2016-09-24 03:10:13 +00:00
hashmap_fast.go runtime: limit the number of map overflow buckets 2016-09-13 17:53:32 +00:00
hashmap.go runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
heapdump.go time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
iface_test.go
iface.go cmd/compile: optimize non-empty-interface type conversions 2017-02-13 18:16:31 +00:00
lfstack_32bit.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
lfstack_64bit.go runtime: merge lfstack_amd64.go into lfstack_64bit.go 2016-04-11 06:18:52 +00:00
lfstack_test.go
lfstack.go runtime: fix stale comment in lfstack 2016-06-16 19:45:33 +00:00
lock_futex.go runtime: find a home for orphaned comments 2016-04-14 18:34:09 +00:00
lock_sema.go
Makefile
malloc_test.go runtime: add number of forced GCs to MemStats 2016-12-07 20:59:16 +00:00
malloc.go runtime: make fastrand to generate 32bit values 2017-02-13 20:22:02 +00:00
map_test.go all: sprinkle t.Parallel on some slow tests 2016-11-04 16:56:57 +00:00
mapspeed_test.go
mbarrier.go runtime: implement unconditional hybrid barrier 2016-10-28 21:24:02 +00:00
mbitmap.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
mcache.go runtime: make fixalloc zero allocations on reuse 2016-10-28 18:20:23 +00:00
mcentral.go runtime: mark several types go:notinheap 2016-10-15 17:58:20 +00:00
mem_bsd.go runtime: eliminate unnecessary type conversions 2016-03-07 20:53:27 +00:00
mem_darwin.go runtime: eliminate unnecessary type conversions 2016-03-07 20:53:27 +00:00
mem_linux.go runtime: don't hard-code physical page size 2016-09-06 21:05:53 +00:00
mem_plan9.go runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
mem_windows.go
memclr_386.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_amd64.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_arm64.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_arm.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_mips64x.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_mipsx.s runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
memclr_plan9_386.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_plan9_amd64.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_ppc64x.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memclr_s390x.s runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
memmove_386.s all: fix obsolete inferno-os links 2016-08-29 04:54:42 +00:00
memmove_amd64.s runtime: amd64, use 4-byte ops for memmove of 4 bytes 2017-01-23 19:39:22 +00:00
memmove_arm64.s
memmove_arm.s all: fix obsolete inferno-os links 2016-08-29 04:54:42 +00:00
memmove_linux_amd64_test.go all: sprinkle t.Parallel on some slow tests 2016-11-04 16:56:57 +00:00
memmove_mips64x.s
memmove_mipsx.s runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
memmove_nacl_amd64p32.s
memmove_plan9_386.s all: fix obsolete inferno-os links 2016-08-29 04:54:42 +00:00
memmove_plan9_amd64.s all: fix obsolete inferno-os links 2016-08-29 04:54:42 +00:00
memmove_ppc64x.s runtime: improve memmove performance ppc64,ppc64le 2016-04-13 15:27:59 +00:00
memmove_s390x.s runtime: add s390x support (new files and lfstack_64bit.go modifications) 2016-04-07 18:56:54 +00:00
memmove_test.go runtime: amd64, use 4-byte ops for memmove of 4 bytes 2017-01-23 19:39:22 +00:00
mfinal_test.go
mfinal.go cmd/compile: do more type conversion inline 2016-11-02 21:33:03 +00:00
mfixalloc.go runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
mgc.go runtime: do not call wakep from enlistWorker, to avoid possible deadlock 2017-02-15 21:22:36 +00:00
mgcmark.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
mgcsweep.go runtime: debug prints for spanBytesAlloc underflow 2017-01-10 15:59:39 +00:00
mgcsweepbuf.go runtime: make markrootSpans time proportional to in-use spans 2016-10-25 22:32:59 +00:00
mgcwork.go runtime: wake idle Ps when enqueuing GC work 2016-11-20 22:44:22 +00:00
mheap.go runtime: compute size classes statically 2016-10-30 03:48:49 +00:00
mkduff.go runtime: update mkduff legacy comments 2016-10-12 14:51:50 +00:00
mkfastlog2table.go
mknacl.sh all: make copyright headers consistent with one space after period 2016-05-02 13:43:18 +00:00
mksizeclasses.go runtime: add table of size classes in a comment 2017-01-08 00:01:30 +00:00
mmap.go runtime: find a home for orphaned comments 2016-04-14 18:34:09 +00:00
mprof.go runtime: ensure elapsed cycles are not negative 2016-10-28 22:14:10 +00:00
msan0.go
msan_amd64.s runtime/cgo: use libc for sigaction syscalls when possible 2016-11-16 05:38:38 +00:00
msan.go runtime: check for nil g and m in msanread 2017-01-19 23:06:54 +00:00
msize.go runtime: compute size classes statically 2016-10-30 03:48:49 +00:00
mstats.go time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
net_plan9.go net: refactor poller into new internal/poll package 2017-02-13 18:36:28 +00:00
netpoll_epoll.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
netpoll_kqueue.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
netpoll_nacl.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
netpoll_solaris.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
netpoll_stub.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
netpoll_windows.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
netpoll.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
noasm.go all: fix assembly vet issues 2016-08-25 18:52:31 +00:00
norace_linux_test.go
norace_test.go
os2_freebsd.go
os2_nacl.go
os2_openbsd.go
os2_plan9.go
os2_solaris.go
os3_plan9.go runtime: enable/disable SIGPROF if needed when profiling 2017-02-09 18:53:34 +00:00
os3_solaris.go runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
os_android.go
os_darwin_arm64.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_darwin_arm.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_darwin.go runtime: os.Executable runtime support for Darwin 2016-11-07 20:18:36 +00:00
os_dragonfly.go runtime: minor simplifications to signal code 2016-09-28 13:12:47 +00:00
os_freebsd_arm.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_freebsd.go runtime: sleep on CLOCK_MONOTONIC in futexsleep1 on freebsd 2016-10-01 01:25:21 +00:00
os_linux_arm64.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_linux_arm.go runtime: skip floating point hardware check on Android 2016-12-22 19:31:15 +00:00
os_linux_be64.go runtime: fix sigset type for ppc64 big-endian GNU/Linux 2016-10-06 22:24:40 +00:00
os_linux_generic.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
os_linux_mips64x.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
os_linux_mipsx.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
os_linux_noauxv.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
os_linux_ppc64x.go runtime: get ppc64x ISA level and hardware capabilities from HWCAP/HWCAP2 2016-11-01 13:41:04 +00:00
os_linux_s390x.go runtime: get s390x vector facility availability from AT_HWCAP 2016-10-19 21:50:13 +00:00
os_linux.go runtime: check sched_getaffinity return value 2017-01-03 22:35:42 +00:00
os_nacl_arm.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_nacl.go runtime: enable/disable SIGPROF if needed when profiling 2017-02-09 18:53:34 +00:00
os_netbsd_386.go os: consolidate os{1,2}_*.go files 2016-04-06 05:04:47 +00:00
os_netbsd_amd64.go os: consolidate os{1,2}_*.go files 2016-04-06 05:04:47 +00:00
os_netbsd_arm.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_netbsd.go runtime: minor simplifications to signal code 2016-09-28 13:12:47 +00:00
os_openbsd_arm.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_openbsd.go runtime: minor simplifications to signal code 2016-09-28 13:12:47 +00:00
os_plan9_arm.go runtime: rename fastrand1 to fastrand 2016-08-30 23:59:21 +00:00
os_plan9.go net: implement asynchonous cancelable I/O on Plan 9 2016-11-12 05:44:36 +00:00
os_solaris.go
os_windows.go runtime: enable/disable SIGPROF if needed when profiling 2017-02-09 18:53:34 +00:00
panic.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
plugin.go cmd/compile: optimize non-empty-interface type conversions 2017-02-13 18:16:31 +00:00
print.go runtime: include pre-panic/throw logs in core dumps 2016-11-11 21:29:53 +00:00
proc_runtime_test.go runtime: improve randomized stealing logic 2016-03-25 11:00:48 +00:00
proc_test.go runtime: fix goroutine priority elevation 2016-05-19 18:18:13 +00:00
proc.go os: use poller for file I/O 2017-02-15 19:31:55 +00:00
proflabel.go runtime: add definitions for SetGoroutineLabels and Do 2017-02-06 20:29:37 +00:00
race0.go runtime: per-P contexts for race detector 2016-05-03 11:00:43 +00:00
race_amd64.s runtime: fix race atomic operations on external memory 2016-06-29 15:30:54 +00:00
race.go testing: mark tests and benchmarks failed if a race occurs during execution 2016-11-03 18:19:49 +00:00
rand_test.go runtime: speed up fastrand() % n 2017-02-14 00:01:22 +00:00
rdebug.go runtime: simplify setPanicOnFault slightly 2016-04-13 06:14:06 +00:00
rt0_android_386.s
rt0_android_amd64.s runtime: fall back to /proc/self/auxv in Android libs 2016-11-29 15:27:53 +00:00
rt0_android_arm64.s runtime: fall back to /proc/self/auxv in Android libs 2016-11-29 15:27:53 +00:00
rt0_android_arm.s runtime: fall back to /proc/self/auxv in Android libs 2016-11-29 15:27:53 +00:00
rt0_darwin_386.s
rt0_darwin_amd64.s runtime: align C library startup calls on amd64 2016-05-25 23:16:46 +00:00
rt0_darwin_arm64.s runtime, runtime/cgo: save callee-saved FP registers on arm64 2016-03-25 23:04:44 +00:00
rt0_darwin_arm.s runtime,runtime/cgo: save callee-saved FP register on arm 2016-05-25 06:54:28 +00:00
rt0_dragonfly_amd64.s
rt0_freebsd_386.s
rt0_freebsd_amd64.s
rt0_freebsd_arm.s
rt0_linux_386.s
rt0_linux_amd64.s runtime: make stack 16-byte aligned for external code in _rt0_amd64_linux_lib 2016-08-05 23:56:07 +00:00
rt0_linux_arm64.s runtime, runtime/cgo: save callee-saved FP registers on arm64 2016-03-25 23:04:44 +00:00
rt0_linux_arm.s runtime,runtime/cgo: save callee-saved FP register on arm 2016-05-25 06:54:28 +00:00
rt0_linux_mips64x.s cmd/link, runtime: add external linking support for linux/mips64x 2016-05-01 02:38:37 +00:00
rt0_linux_mipsx.s runtime: add cgo support for GOARCH=mips{,le} 2016-12-14 23:52:33 +00:00
rt0_linux_ppc64.s
rt0_linux_ppc64le.s runtime: add library startup support for ppc64le 2016-05-26 03:31:59 +00:00
rt0_linux_s390x.s runtime: add s390x support (new files and lfstack_64bit.go modifications) 2016-04-07 18:56:54 +00:00
rt0_nacl_386.s
rt0_nacl_amd64p32.s
rt0_nacl_arm.s
rt0_netbsd_386.s
rt0_netbsd_amd64.s
rt0_netbsd_arm.s
rt0_openbsd_386.s
rt0_openbsd_amd64.s
rt0_openbsd_arm.s
rt0_plan9_386.s
rt0_plan9_amd64.s
rt0_plan9_arm.s runtime: new files for plan9_arm support 2016-03-07 16:25:48 +00:00
rt0_solaris_amd64.s
rt0_windows_386.s cmd/go: fix -buildmode=c-archive should work on windows 2016-04-04 03:38:25 +00:00
rt0_windows_amd64.s cmd/go: fix -buildmode=c-archive should work on windows 2016-04-04 03:38:25 +00:00
runtime1.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
runtime2.go runtime: remove g.stackAlloc 2017-02-14 15:52:56 +00:00
runtime_linux_test.go
runtime_mmap_test.go runtime: fetch physical page size from the OS 2016-09-06 21:05:50 +00:00
runtime_test.go runtime: check that Version does not contain \r \n 2016-12-05 16:49:53 +00:00
runtime_unix_test.go
runtime-gdb_test.go runtime: skip flaky TestGdbPythonCgo on MIPS 2017-02-02 21:45:42 +00:00
runtime-gdb.py runtime: set $sp before $pc in gdb python script 2016-06-09 20:02:59 +00:00
runtime-lldb_test.go cmd/link: put text at address 0x1000000 on darwin/amd64 2016-10-28 20:17:53 +00:00
runtime.go syscall: make Getpagesize return page size from runtime 2016-09-06 21:05:55 +00:00
select.go runtime: speed up fastrand() % n 2017-02-14 00:01:22 +00:00
sema.go net: refactor poller into new internal/poll package 2017-02-13 18:36:28 +00:00
sigaction_linux.go runtime/cgo: use libc for sigaction syscalls when possible 2016-11-16 05:38:38 +00:00
signal_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_amd64x.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_arm64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_darwin_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_darwin_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_darwin_arm64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_darwin_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_darwin.go runtime: unify sigtrampgo 2016-09-26 17:22:42 +00:00
signal_dragonfly_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_dragonfly.go runtime: don't always unblock all signals on dragonfly, freebsd and openbsd 2016-04-15 21:20:45 +00:00
signal_freebsd_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_freebsd_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_freebsd_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_freebsd.go runtime: unify sigtrampgo 2016-09-26 17:22:42 +00:00
signal_linux_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_linux_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_linux_arm64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_linux_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_linux_mips64x.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_linux_mipsx.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
signal_linux_ppc64x.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_linux_s390x.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_mips64x.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_mipsx.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
signal_nacl_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_nacl_amd64p32.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_nacl_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_nacl.go
signal_netbsd_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_netbsd_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_netbsd_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_netbsd.go
signal_openbsd_386.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_openbsd_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_openbsd_arm.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_openbsd.go runtime: unify sigtrampgo 2016-09-26 17:22:42 +00:00
signal_plan9.go runtime: signal handling support for plan9_arm 2016-03-07 16:25:17 +00:00
signal_ppc64x.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_sighandler.go runtime: print sigcode on signal crash 2016-10-27 17:46:01 +00:00
signal_solaris_amd64.go runtime: record current PC for SIGPROF on non-Go thread 2016-10-11 12:56:15 +00:00
signal_solaris.go runtime: treat SIGSTOP on Solaris as we do on other systems 2016-11-01 20:02:40 +00:00
signal_unix.go runtime: remove g.stackAlloc 2017-02-14 15:52:56 +00:00
signal_windows.go runtime: minor simplifications to signal code 2016-09-28 13:12:47 +00:00
sigqueue_plan9.go
sigqueue.go runtime: improve last ditch signal forwarding for Unix libraries 2016-03-24 19:34:17 +00:00
sigtab_linux_generic.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
sigtab_linux_mipsx.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
sizeclasses.go runtime: add table of size classes in a comment 2017-01-08 00:01:30 +00:00
slice.go runtime, cmd/compile: rename memclr -> memclrNoHeapPointers 2016-10-28 18:20:33 +00:00
softfloat64_test.go
softfloat64.go
softfloat_arm.go [dev.ssa] cmd/internal/obj, etc.: add and use NEGF, NEGD instructions on ARM 2016-07-20 18:15:37 +00:00
sqrt_test.go
sqrt.go
stack_test.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
stack.go runtime: remove g.stackAlloc 2017-02-14 15:52:56 +00:00
string_test.go runtime: improve atoi implementation 2016-11-01 14:04:39 +00:00
string.go runtime: improve atoi implementation 2016-11-01 14:04:39 +00:00
stubs2.go
stubs32.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
stubs_android.go
stubs_asm.go all: fix assembly vet issues 2016-08-25 18:52:31 +00:00
stubs.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
symtab_test.go
symtab.go runtime: speed up fastrand() % n 2017-02-14 00:01:22 +00:00
sys_arm64.go runtime, cmd/internal/obj: get rid of rewindmorestack 2016-10-05 18:19:46 +00:00
sys_arm.go runtime, cmd/internal/obj: get rid of rewindmorestack 2016-10-05 18:19:46 +00:00
sys_darwin_386.s time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
sys_darwin_amd64.s time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
sys_darwin_arm64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_darwin_arm.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_dragonfly_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_freebsd_386.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_freebsd_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_freebsd_arm.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_386.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_arm64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_arm.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_linux_mips64x.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_mipsx.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_ppc64x.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_linux_s390x.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_mips64x.go runtime, cmd/internal/obj: get rid of rewindmorestack 2016-10-05 18:19:46 +00:00
sys_mipsx.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
sys_nacl_386.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_nacl_amd64p32.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_nacl_arm.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_netbsd_386.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_netbsd_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_netbsd_arm.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_nonppc64x.go
sys_openbsd_386.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_openbsd_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_openbsd_arm.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_plan9_386.s runtime: fix some assembly offset names 2017-02-14 02:09:48 +00:00
sys_plan9_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_plan9_arm.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_ppc64x.go runtime, cmd/internal/obj: get rid of rewindmorestack 2016-10-05 18:19:46 +00:00
sys_s390x.go runtime, cmd/internal/obj: get rid of rewindmorestack 2016-10-05 18:19:46 +00:00
sys_solaris_amd64.s time: record monotonic clock reading in time.Now, for more accurate comparisons 2017-02-03 19:04:52 +00:00
sys_windows_386.s time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
sys_windows_amd64.s time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
sys_x86.go runtime, cmd/internal/obj: get rid of rewindmorestack 2016-10-05 18:19:46 +00:00
syscall2_solaris.go
syscall_nacl.h
syscall_solaris.go
syscall_windows_test.go runtime: pass windows float syscall args via XMM 2016-10-28 13:13:08 +00:00
syscall_windows.go runtime, syscall: only search for Windows DLLs in the System32 directory 2016-04-01 22:55:36 +00:00
textflag.h cmd/compile: track reflect.Type.Method in deadcode 2016-03-11 21:19:20 +00:00
time.go net: refactor poller into new internal/poll package 2017-02-13 18:36:28 +00:00
timeasm.go time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
timestub.go time: optimize Now on darwin, windows 2017-02-09 14:45:16 +00:00
tls_arm64.h
tls_arm64.s
tls_arm.s
tls_mips64x.s runtime: add linux/mips64x cgo support 2016-05-04 16:41:10 +00:00
tls_mipsx.s runtime: add cgo support for GOARCH=mips{,le} 2016-12-14 23:52:33 +00:00
tls_ppc64x.s
tls_s390x.s runtime: add s390x support (new files and lfstack_64bit.go modifications) 2016-04-07 18:56:54 +00:00
trace.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
traceback.go runtime: remove stack barriers 2017-02-14 15:52:54 +00:00
type.go [dev.typealias] cmd/compile, reflect: fix struct field names for embedded byte, rune 2017-01-25 18:57:20 +00:00
typekind.go
unaligned1.go runtime: add s390x support (modified files only) 2016-04-06 04:25:06 +00:00
unaligned2.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
utf8.go runtime: speed up non-ASCII rune decoding 2016-10-17 11:25:22 +00:00
vdso_linux_amd64.go runtime: common handling of _AT_RANDOM auxv 2016-04-16 21:42:31 +00:00
vdso_none.go runtime: os.Executable runtime support for Darwin 2016-11-07 20:18:36 +00:00
vlop_386.s all: fix obsolete inferno-os links 2016-08-29 04:54:42 +00:00
vlop_arm_test.go runtime: arm5, fix large-offset floating-point stores 2016-04-25 22:33:33 +00:00
vlop_arm.s cmd/link: insert trampolines for too-far jumps on ARM 2016-10-11 13:35:33 +00:00
vlrt.go runtime: add support files for linux/mips{,le} port 2016-11-15 21:49:01 +00:00
wincallback.go
write_err_android.go runtime: update android time_now call 2017-02-08 02:56:25 +00:00
write_err.go
zcallback_windows.go
zcallback_windows.s