runtime

New Issue

merge workarounds to false deadlocksNeedsFix

#40518 opened 3 days ago by prattmic

fatal error: checkdead: runnable g [1.13 backport]CherryPickCandidate

#40503 opened 4 days ago by dmitshur

unexpected return pc for runtime.asmstdcallNeedsInvestigationOS-Windows

#40469 opened 5 days ago by chalkwu

goroutines may allocate beyond the hard heap goalNeedsFix

#40460 opened 6 days ago by mknyszek

ReadMemStats called in a loop may prevent GC

#40459 opened 6 days ago by mknyszek

fatal error: checkdead: inconsistent countsNeedsInvestigation

#40434 opened 1 week ago by prattmic

Windows service lifecycle events behave incorrectly when called within a golang environment [1.15 backport]CherryPickCandidate

#40412 opened 1 week ago by gopherbot

Windows service lifecycle events behave incorrectly when called within a golang environment [1.14 backport]CherryPickCandidate

#40411 opened 1 week ago by gopherbot

trim unnecessary fields from scaseNeedsFix

#40410 opened 1 week ago by mdempsky

unexpected return pc for runtime.NeedsInvestigationOS-Windows

#40401 opened 1 week ago by chalkwu

fatal error: checkdead: runnable g [1.14 backport]CherryPickCandidate

#40398 opened 1 week ago by gopherbot

select: fatal error: index out of rangeNeedsInvestigation

#40397 opened 1 week ago by prestonvanloon

mTreap corruption in go1.13.10NeedsInvestigation

#40372 opened 1 week ago by luckyxiaoqiang

index out of range error with doublecheck enabled in heapBitsSetType on 386NeedsInvestigation

#40335 opened 1 week ago by martisch

memmove performance on arm64 for unaligned copies is poor on some CPUsNeedsInvestigationPerformance

#40324 opened 1 week ago by AWSjswinney

add mechanism to configure format used to write out unhandled panicsProposal

#40238 opened 2 weeks ago by mitar

request for comment: reducing preemption in suspendG when G is running large nosplit functionsNeedsInvestigation

#40229 opened 2 weeks ago by shawn-xdji

long latency in mark assistNeedsInvestigation

#40225 opened 2 weeks ago by choleraehyq

pageAlloc.searchAddr may point to unmapped memory in discontiguous heaps, violating its invariant [1.14 backport]CherryPickApproved

#40192 opened 3 weeks ago by gopherbot

Windows service lifecycle events behave incorrectly when called within a golang environmentNeedsInvestigationOS-Windows

#40167 opened 3 weeks ago by yohan1234

darwin using -buildmode=c-shared so got runtime: unexpected return pc for runtime.sigpanic called from 0x41e745aNeedsInvestigationOS-Darwin

#40131 opened 3 weeks ago by wangzz719

deprecate SetCPUProfileRate and replace body with panicNeedsFix

#40094 opened 3 weeks ago by rsc

calling fmt.Println in different goroutines causes a crashArch-WasmNeedsInvestigation

#40081 opened 4 weeks ago by albrow

libunwind is unable to unwind CGo to Go's stackNeedsInvestigation

#40044 opened 1 month ago by steeve

idle GC interferes with auto-scalingNeedsDecision

#39983 opened 1 month ago by aclements

unnecessary heap allocations when `range`ing over an empty arrayNeedsInvestigationPerformance

#39668 opened 1 month ago by kallsyms

SIGSEGV during sigpanic in TestCgoCallbackGC on netbsd-386-9_0 builderNeedsInvestigationOS-NetBSD

#39595 opened 1 month ago by bcmills

fixup darwin/arm64 framepointer assemblyNeedsFix

#39524 opened 1 month ago by eliasnaur

add race detector for ios/arm64NeedsInvestigation

#39521 opened 1 month ago by steeve

segfault during conservative scan of asynchronously preempted goroutineNeedsInvestigation

#39499 opened 1 month ago by jamesl33

"morestack on g0" in TestSegv on darwin-amd64-race builderNeedsInvestigationOS-Darwin

#39457 opened 1 month ago by bcmills

read-only accessor for gcpercentFeatureRequestNeedsInvestigation

#39419 opened 1 month ago by bsiegert

“unknown pc” exception for amd64 programs on Windows 7 with EMET and Export Address Table Access Filtering enabledExpertNeededNeedsInvestigationOS-Windows

#39410 opened 2 months ago by merces

OOM when runing in sparse available memory systemNeedsInvestigation

#39400 opened 2 months ago by jeremyshisong

"fatal error: all goroutines are asleep - deadlock!" with GC assist waitNeedsInvestigation

#39390 opened 2 months ago by prattmic

musl uses signal 34 for setgidNeedsFixhelp wanted

#39343 opened 2 months ago by nmeum

crash on linux/arm64 with "invalid p state" on 1.13NeedsInvestigation

#39252 opened 2 months ago by choury

TestGdbBacktrace occasionally fails on linux-amd64 builderNeedsInvestigation

#39228 opened 2 months ago by tklauser

move tests for runtime-gdb.py to misc/ and do not run them during all.bashDebuggingNeedsDecisionTesting

#39204 opened 2 months ago by bcmills

error error 3221226356 (C0000374) in CGO module in WindowsNeedsInvestigationOS-Windows

#39127 opened 2 months ago by bsrdjan

potential issue with mips64 VDSO clock_gettimeNeedsInvestigation

#39046 opened 2 months ago by draganmladjenovic

apparent TestEnsureDropM deadlock on openbsd-386-62 builderNeedsInvestigationOS-OpenBSD

#39039 opened 2 months ago by bcmills

hang in StopTrace in runtime.testNeedsInvestigation

#39004 opened 2 months ago by prattmic

rare TestSpuriousWakeupsNeverHangSemasleep failuresNeedsInvestigation

#38921 opened 2 months ago by FiloSottile

checkptr race conditionNeedsInvestigation

#38872 opened 3 months ago by cuonglm

CPU bound goroutines cause unnecessary timer latencyNeedsInvestigation

#38860 opened 3 months ago by ChrisHines

nmspinning's position in struct schedt NeedsInvestigation

#38858 opened 3 months ago by mygrsun

panic: unexpected return pc for runtime.heapBitsSetTypeNeedsInvestigation

#38851 opened 3 months ago by fasaxc

intermittent os/exec.Command.Start() Hang on Darwin in Presence of "plugin" PackageNeedsInvestigationOS-Darwinhelp wanted

#38824 opened 3 months ago by jcburley

throw with mSpanList.Insert exception on Go1.12WaitingForInfo

#38718 opened 3 months ago by tokers

can't call from Go to c-shared Go library on DarwinNeedsInvestigationOS-Darwin

#38692 opened 3 months ago by khaitranvan96kt

allow stack dump and debuggers access to the goroutine tree.Proposal

#38651 opened 3 months ago by firelizzard18

SIGSEGV during runtime init, in gcenableNeedsInvestigation

#38639 opened 3 months ago by wadey

weird panic while dumping non-pointer struct with wrapped errorNeedsInvestigation

#38601 opened 3 months ago by powerman

"fatal: systemstack called from unexpected goroutine" on armv6NeedsInvestigation

#38539 opened 3 months ago by diamondo25

support SSE2 memmove on older amd64 hardwareNeedsInvestigationPerformance

#38512 opened 3 months ago by barakmich

frequent "fatal error: checkdead: runnable g" on plan9 buildersNeedsInvestigationOS-Plan9

#38489 opened 3 months ago by bcmills

tracking bug for ARM-based macOS and GOOS/GOARCH valuesNeedsInvestigationOS-Darwinmobile

#38485 opened 3 months ago by bradfitz

sema: many many goroutines queueing up on many many distinct addresses -> slowNeedsInvestigation

#38420 opened 3 months ago by navytux

timeout in TestCgoCCodeSIGPROF and TestCgoExecSignalMask on linux-ppc64le-buildletBuildersNeedsInvestigationarch-ppc64x

#38333 opened 3 months ago by bcmills

cgo calls are way faster when enabling CPU profileNeedsInvestigationPerformance

#38325 opened 3 months ago by didrocks

high startup memory allocation on Linux AMD64NeedsInvestigation

#38010 opened 4 months ago by pkramme

cannot run go file using qemu-arm when I disable core 0 in docker WaitingForInfo

#37945 opened 4 months ago by eastson

binary hangs on CatalinaNeedsInvestigation

#37885 opened 4 months ago by gadelkareem

TestGdbPythonCgo is flaky on linux-mips64le-rtrk builderNeedsInvestigation

#37794 opened 4 months ago by bcmills

"workbuf is not empty" on BSD buildersNeedsInvestigation

#37793 opened 4 months ago by bcmills

Benchmarking reports unexpected memory allocation when using range with map structureNeedsInvestigation

#37757 opened 4 months ago by DhiaTN

name offset base pointer out of rangeNeedsInvestigation

#37712 opened 5 months ago by stevenh

save CPU registers for the frame calling runtime.sigpanicDebuggingNeedsInvestigation

#37683 opened 5 months ago by aarzilli

ThreadSanitizer failed to allocate / CHECK failedNeedsInvestigation

#37651 opened 5 months ago by sb10

Memory not returned to system on linuxNeedsInvestigationOS-Linux

#37585 opened 5 months ago by TimmyOVO

ensuring support of debug.asyncpreemptoffNeedsInvestigation

#37575 opened 5 months ago by derekparker

Go 1.14 is extremely slow under debugging on macOSDebuggingNeedsInvestigationOS-Darwin

#37528 opened 5 months ago by Cyberax

"found bad pointer in Go heap" on solaris-amd64-oraclerel builderNeedsInvestigationOS-Solaris

#37502 opened 5 months ago by bcmills

frequent enlisting of short-lived background workers leads to performance regression with async preemptionNeedsFixPerformancehelp wanted

#37465 opened 5 months ago by klauspost

hang in TestGdbBacktrace on `linux-mips64le-mengzhuo` builderNeedsInvestigation

#37405 opened 5 months ago by bcmills

"interface {} is nil, not *main.T" on linux-amd64-noopt builderNeedsInvestigation

#37401 opened 5 months ago by bcmills

test hung in TestGdbAutotmpTypesNeedsInvestigation

#37366 opened 5 months ago by bcmills

TestGcSys is still flakyNeedsInvestigation

#37331 opened 5 months ago by bcmills

can't atomic access of first word of tiny-allocated struct on 32-bit architectureNeedsFixrelease-blocker

#37262 opened 5 months ago by NewbMiao

gdb stepping behavior when debugging Go program on ppc64le changed when split-stack prologue marked non-preemptibleNeedsInvestigation

#37126 opened 5 months ago by laboger

10ms-26ms latency from GC in go1.14rc1, possibly due to 'GC (idle)' workNeedsInvestigation

#37116 opened 5 months ago by thepudds

API for unstable metricsProposalProposal-Accepted

#37112 opened 5 months ago by mknyszek

provide centralized facility for managing (c)go pointer handlesNeedsFixProposalProposal-Acceptedhelp wanted

#37033 opened 6 months ago by oakad

panicmem should expose the address it's panicking about.ProposalProposal-Accepted

#37023 opened 6 months ago by seebs

async preemption support on ARM64 breaks ARM64 on QEMUNeedsInvestigationhelp wanted

#36981 opened 6 months ago by kortschak

allow map hashes with different tradeoffsNeedsInvestigationPerformance

#36915 opened 6 months ago by eric-s-raymond

add a debug flag that force runtime debug logs are sent to stdout rather than stderrNeedsDecision

#36675 opened 6 months ago by tibetsam

sysUsed often called on non-scavenged memoryNeedsFixPerformance

#36603 opened 6 months ago by mknyszek

Go 1.14/Windows asynchronous preemption mechanism likely incompatible with debuggingDebuggingNeedsInvestigationOS-Windows

#36494 opened 6 months ago by aarzilli

make.bat hangsNeedsInvestigationOS-Windows

#36492 opened 6 months ago by alexbrainman

clean up async preemption loose endsNeedsFix

#36365 opened 7 months ago by aclements

pclntab is too bigNeedsInvestigationbinary-size

#36313 opened 7 months ago by robpike

unexpected return pc for runtime.sigpanic called from 0x0NeedsInvestigationWaitingForInfo

#36287 opened 7 months ago by thundercw

go1.13.5/go tip worst gc pause time increase from go1.9.7 in darwin/amd64NeedsInvestigation

#36147 opened 7 months ago by bronze1man

"real time" timer semanticsProposal

#36141 opened 7 months ago by zx2c4

TestScript flake with "Failed to find getsockname procedure in ws2_32.dll: The specified procedure could not be found." NeedsInvestigation

#36029 opened 8 months ago by odeke-em

revert Linux signal stack mlock workaroundNeedsFixearly-in-cycle

#35979 opened 8 months ago by aclements

SIGSEGV in `runtime.shrinkstack`WaitingForInfo

#35916 opened 8 months ago by junchih

HeapSys increases until OOM terminationNeedsInvestigation

#35890 opened 8 months ago by savalin

always set up TLS on all G-register architectures?NeedsDecision

#35853 opened 8 months ago by cherrymui

signal: illegal instruction on darwin/arm64NeedsInvestigationOS-Darwinarch-arm64mobile

#35851 opened 8 months ago by eliasnaur

being unable to allocate across scavenged and unscavenged memory leads to fragmentation blow-up in some cases

#35848 opened 8 months ago by savalin

TestGdbPythonCgo failure on linux-amd64 builderNeedsInvestigation

#35743 opened 8 months ago by bcmills

timeout with GDB tests on aix/ppc64NeedsInvestigation

#35710 opened 8 months ago by Helflym

large address space footprint on 32-bit linuxNeedsInvestigation

#35677 opened 8 months ago by tmm1

de-duplicate bit operations with math/bitsNeedsDecision

#35569 opened 8 months ago by aclements

"unexpected signal during runtime execution" during bgscavenge on plan9-386-0introNeedsInvestigationOS-Plan9help wanted

#35456 opened 8 months ago by bcmills

M woken with no P on WindowsNeedsInvestigationOS-Windows

#35391 opened 9 months ago by jazzy-crane

should checkptrArithmetic accept a uintptr instead of unsafe.Pointer?NeedsInvestigation

#35379 opened 9 months ago by ianlancetaylor

a runtime.Goexit call will cancel a panic, which seems unexpected/incorrectNeedsInvestigation

#35378 opened 9 months ago by danscales

TestCrashDumpsAllThreads flakesNeedsInvestigation

#35356 opened 9 months ago by FiloSottile

support GOFLAGS=-race everywhereNeedsDecision

#35324 opened 9 months ago by eliasnaur

fatal error: unknown caller pc (libfuzz)NeedsInvestigation

#35158 opened 9 months ago by klauspost

unexpected return pc for os/signal.loop called from 0x0NeedsInvestigationOS-Windows

#35005 opened 9 months ago by mega-bran

throw should print more diagnosticsNeedsFix

#34954 opened 9 months ago by aclements

'unexpected fault address 0x0' in evacuate_fast32 on linux-mips64le-mengzhuo builderNeedsInvestigation

#34835 opened 9 months ago by bcmills

manual instrumentation of KeepAlive is fraughtNeedsInvestigation

#34810 opened 9 months ago by beoran

read scheduled on a different thread than a locked and associated with network namespaceNeedsInvestigation

#34607 opened 10 months ago by difrost

maybe allgs should shrink after peak loadNeedsInvestigation

#34457 opened 10 months ago by cch123

"panic: runtime error: growslice: cap out of range" when creating slice from an unsafe.Pointer in another part of programNeedsInvestigation

#34288 opened 10 months ago by Lomanic

futex contention caused by memory allocation in goroutinesNeedsInvestigation

#34231 opened 10 months ago by flxkl

lock cycle between mheap_.lock and gcSweepBuf.spineLockNeedsInvestigation

#34156 opened 11 months ago by mknyszek

"unexpected return pc for runtime.sigpanic" on darwin-amd64-10_11 builderNeedsInvestigationOS-Darwin

#34039 opened 11 months ago by bcmills

testtls ran too long on the android-amd64-emu trybotNeedsInvestigation

#33944 opened 11 months ago by mvdan

gc exhausts all cpu causing a short delay NeedsInvestigation

#33927 opened 11 months ago by Anteoy

make `GOMAXPROCS` cfs-aware on `GOOS=linux`NeedsInvestigation

#33803 opened 11 months ago by jcorbin

A QEMU signaling fix causes Go binaries to fail on startup.NeedsInvestigation

#33746 opened 11 months ago by joshkunz

unexpected fault address runtime.memhash16NeedsInvestigation

#33635 opened 11 months ago by kevinconaway

TestPanicSystemstack is flaky on linux-amd64-longtest builderNeedsInvestigation

#33626 opened 11 months ago by bcmills

netpollWaiters typically not decrementedNeedsInvestigation

#33624 opened 11 months ago by rutsky

GC: heap idle is not released to linuxNeedsInvestigationOS-Linux

#33376 opened 1 year ago by Anteoy

use PAGE_NOACCESS in sysReseveNeedsInvestigation

#33327 opened 1 year ago by alexbrainman

GoroutineProfile causes latency spikes in high-goroutine-count applicationNeedsInvestigationPerformance

#33250 opened 1 year ago by dpolansky

segmentation fault on linux/arm when GODEBUG=sbrk=1NeedsInvestigationWaitingForInfo

#33159 opened 1 year ago by mischief

raising the number of GOMAXPROCS cause oomNeedsInvestigation

#32950 opened 1 year ago by Anteoy

apparent test deadlock on linux-amd64-raceNeedsInvestigationTesting

#32689 opened 1 year ago by bcmills

respect SA_RESETHAND when forwarding to non-Go signal handlerNeedsFix

#32659 opened 1 year ago by jimhuaang

allow FreeBSD users to choose between MADV_FREE and MADV_DONTNEEDNeedsInvestigationOS-FreeBSD

#32519 opened 1 year ago by araujobsd

program terminated with signal 7, bus errorNeedsInvestigationWaitingForInfo

#32446 opened 1 year ago by beibeiabeibei

performance degradation in high-load long running applicationsNeedsInvestigation

#32398 opened 1 year ago by akaspin

elided panic goroutine stack trace doesn't print "additional frames elided" since go1.8NeedsInvestigation

#32383 opened 1 year ago by maruel

"found bad pointer in Go heap" on darwin-arm64-corellium builderNeedsInvestigationOS-Darwinmobile

#32324 opened 1 year ago by bcmills

Go routine and writer memory not being releasedNeedsInvestigation

#32124 opened 1 year ago by CyberNinja89

optimization to reduce P churnNeedsInvestigationPerformance

#32113 opened 1 year ago by amscanne

"sweep increased allocation count" on darwin-arm64-corellium builderNeedsInvestigation

#32026 opened 1 year ago by bcmills

occasional hangs in TestCgoCallbackGCNeedsInvestigationTesting

#32023 opened 1 year ago by bcmills

optionally (reliably) avoid netpoller NeedsInvestigation

#32009 opened 1 year ago by tamird

line-buffer goroutine dump output?NeedsDecision

#32002 opened 1 year ago by bradfitz

no examples for LockOSThread and UnlockOSThreadDocumentationNeedsInvestigationhelp wanted

#31911 opened 1 year ago by msoedov

implement CPU capability detection for openbsd/arm64NeedsFixOS-OpenBSDhelp wanted

#31746 opened 1 year ago by 4a6f656c

ARM uClinux crash with -buildmode=c-archiveNeedsFixhelp wanted

#31378 opened 1 year ago by ooepay

long pauses STW (sweep termination) on massive block allocationNeedsDecision

#31222 opened 1 year ago by un000

reduce function prologue overheadNeedsInvestigationPerformance

#31193 opened 1 year ago by aclements

TestLldbPython failing with 'no intvar'NeedsFixTesting

#31188 opened 1 year ago by josharian

stop single goroutineDebuggingNeedsInvestigation

#31132 opened 1 year ago by dlsniper

Consul process crash, and gdb pointing to Go codeNeedsInvestigationWaitingForInfo

#31032 opened 1 year ago by rohitjun

killed threads do not crash whole processNeedsInvestigation

#30753 opened 1 year ago by bobrik

CPU instruction "NOP" utilizes ~50% CPU and pprof doesn't explain thatNeedsInvestigation

#30708 opened 1 year ago by xaionaro

adopt mesh allocation technique?ExpertNeededFeatureRequestNeedsInvestigation

#30290 opened 1 year ago by stapelberg

simplify right shift and zero testNeedsFixPerformance

#30272 opened 1 year ago by TuomLarsen

scheduler randomness lostNeedsInvestigation

#29961 opened 2 years ago by ardan-bkennedy

cannot run go.exe on Windows Server 2016NeedsInvestigation

#29885 opened 2 years ago by huangyezuojia

expose morestack (or equivalent) to make calling into JIT'ed code easier (and less hacky)NeedsInvestigation

#29857 opened 2 years ago by twitchyliquid64

add way for applications to respond to GC backpressureProposalProposal-Hold

#29696 opened 2 years ago by josharian

unexpected signal on Termux android/arm64NeedsInvestigation

#29623 opened 2 years ago by uudashr

GDB tests fail on freebsd/arm builderNeedsFixOS-FreeBSDhelp wanted

#29508 opened 2 years ago by bradfitz

unexpected signal during runtime execution on DebianNeedsInvestigation

#29377 opened 2 years ago by cosmtrek

PIEs don't detect deadlocksNeedsFixhelp wanted

#29322 opened 2 years ago by aarzilli

Livelock in mallocgcNeedsInvestigation

#29287 opened 2 years ago by ewhamilton

TestLldbPython fails for lldb 7.0.0NeedsInvestigation

#29244 opened 2 years ago by jimrobinson

incorrect constant value for PROCESS_ALL_ACCESSNeedsInvestigationTesting

#29176 opened 2 years ago by Rojuinex

potential for self-deadlock in runtime write barriers

#28993 opened 2 years ago by mknyszek

godoc crashes consistently with "still in list": OS X Mojave problem?NeedsInvestigation

#28949 opened 2 years ago by robpike

race detector on ARM64 doesn't fully workRaceDetector

#28848 opened 2 years ago by cherrymui

scheduler work stealing slow for high GOMAXPROCSNeedsInvestigation

#28808 opened 2 years ago by ChrisHines

types are not garbage collectedNeedsInvestigationPerformance

#28783 opened 2 years ago by rogpeppe

repeated syscalls inhibit periodic preemptionNeedsInvestigationPerformance

#28701 opened 2 years ago by benesch

provide access to info about recent GC cyclesProposalProposal-Hold

#28623 opened 2 years ago by prashantv

unknown pc during parallel benchmarksNeedsInvestigation

#28541 opened 2 years ago by mediocregopher

seg fault on Darwin in GC while under debuggerNeedsInvestigationOS-Linux

#28373 opened 2 years ago by robaho

Interferes with Windows timer frequencyNeedsInvestigationOS-Windows

#28255 opened 2 years ago by stevenh

segfault during test using -coverpkg and -raceNeedsInvestigationRaceDetector

#28109 opened 2 years ago by gaillard

arena mapping creates large core files and bad mlockall behaviorNeedsFixPerformance

#28081 opened 2 years ago by randall77

L2 arena maps are not accounted for in any runtime.MemStats fieldNeedsInvestigation

#28062 opened 2 years ago by siebenmann

fatal error: found bad pointer in Go heap (incorrect use of unsafe or cgo?) on 386 FreeBSD after CL 138595NeedsInvestigationOS-FreeBSD

#28054 opened 2 years ago by paulzhol

error message: P has cached GC work at end of mark terminationGarbageCollectorNeedsFixearly-in-cycle

#27993 opened 2 years ago by ianlancetaylor

CallersFrames showing mangled package path for nonASCII pkg nameNeedsInvestigation

#27835 opened 2 years ago by thanm

string concatenation specializations for performanceNeedsInvestigationPerformance

#27801 opened 2 years ago by quasilyte

mark assist blocks GC microbenchmark for 7msGarbageCollectorNeedsInvestigationPerformance

#27732 opened 2 years ago by dr2chase

cgo Unix C code can't modify environment variables for GoDocumentationNeedsFix

#27693 opened 2 years ago by rmmh

tracebacks don't print function arguments for inlined functionsNeedsInvestigation

#27678 opened 2 years ago by rockmenjack

feature request: Support for ASLR with the heapNeedsInvestigation

#27583 opened 2 years ago by lattera

crash with "invalid pc-encoded table"NeedsInvestigation

#27540 opened 2 years ago by crxpandion

system experienced long pauses during GC markingGarbageCollectorNeedsInvestigationWaitingForInfo

#27410 opened 2 years ago by fmstephe

use parent goroutine's stack for new goroutinesNeedsInvestigationPerformance

#27345 opened 2 years ago by josharian

transparent hugepages on linux/mipsle causes segfaultsNeedsInvestigation

#26898 opened 2 years ago by josharian

defer/recover support in race detectorNeedsInvestigationRaceDetector

#26813 opened 2 years ago by adilbaig

append is slower than make+assignments for small slices with known lengthNeedsInvestigationPerformance

#26734 opened 2 years ago by opennota

pack info into low bits of interface type pointersPerformance

#26680 opened 2 years ago by josharian

signal handling panics for signals generated by sigqueue/tgkillNeedsFix

#26625 opened 2 years ago by aclements

Caller returns wrong file and line if called in a deferred function during panicNeedsInvestigation

#26320 opened 2 years ago by ainar-g

document the behaviour of Caller and Callers when used in deferred functionsDocumentationNeedsFix

#26275 opened 2 years ago by ainar-g

SIGSEGV on a freebsd-amd64 builderNeedsInvestigationOS-FreeBSD

#26141 opened 2 years ago by mvdan

g0 stack.lo is sometimes too lowNeedsFix

#26061 opened 2 years ago by aclements

use wrappers for op= map operationsNeedsInvestigationPerformance

#26059 opened 2 years ago by randall77

SIGSEGV when building on freebsd ARMNeedsInvestigationOS-FreeBSD

#25770 opened 2 years ago by artooro

TestGdbPython flaky on linux-mipsle builderNeedsInvestigationTestinghelp wanted

#25697 opened 2 years ago by bcmills

use clock_gettime instead of gettimeofday on DarwinNeedsFixOS-Darwin

#25633 opened 2 years ago by randall77

support resuming a single goroutine under debuggersDebuggingNeedsInvestigation

#25578 opened 2 years ago by aclements

opportunistically rotate map key seedNeedsFixSuggested

#25237 opened 2 years ago by josharian

can not read stacktrace from a core fileDebuggingNeedsInvestigation

#25218 opened 2 years ago by aarzilli

"runtime·unlock: lock count" on Go 1.10.1 when cgo is enabledNeedsInvestigation

#25128 opened 2 years ago by SuperQ

android backtraces do not include go backtraceNeedsInvestigationOS-Android

#25035 opened 2 years ago by zx2c4

sparse zeroing in mallocgcPerformance

#24928 opened 2 years ago by josharian

use register instead of TLS for G pointer for darwin/arm and darwin/arm64OS-Darwin

#24793 opened 2 years ago by randall77

add g.pPerformance

#24686 opened 2 years ago by josharian

segfault in sync.Pool when using a shared runtimeNeedsInvestigation

#24640 opened 2 years ago by otavio

gentraceback no longer skips stack frames when printingNeedsFix

#24628 opened 2 years ago by odeke-em

support for cgo pprof is currently heavily Linux-dependentWaitingForInfo

#24545 opened 2 years ago by tenortim

panic: runtime error: index out of range on all commands on DarwinNeedsInvestigationOS-Darwin

#24394 opened 2 years ago by patricklunney

Go runtime in DLL marks stdin/out/err not inherited on WindowsNeedsInvestigationOS-Windows

#24328 opened 2 years ago by tomcnolan

ignore map size hint if there's not enough memory?NeedsFix

#24308 opened 2 years ago by mfrw

wrong Unix error code from panic.NeedsFixearly-in-cycle

#24284 opened 2 years ago by robpike

"runtime: unexpected return pc for testing.tRunner called from 0x0"NeedsInvestigationOS-Windowsmobile

#24267 opened 2 years ago by eliasnaur

optimize comparison of large values with zeroPerformance

#23929 opened 2 years ago by josharian

always log GC details in-memoryNeedsFix

#23815 opened 2 years ago by heschik

stack grow panic tracing back through sigpanic from signal handlerNeedsInvestigation

#23484 opened 2 years ago by eliasnaur

Windows service timeout during system startup NeedsInvestigationOS-Windowshelp wanted

#23479 opened 2 years ago by kneden

make defs_$GOOS.go regeneratableNeedsInvestigation

#23341 opened 2 years ago by hirochachacha

memmove sometimes faster than memclrNoHeapPointersNeedsInvestigationPerformance

#23306 opened 2 years ago by alandonovan

high contention in mheap_.lock causing low CPU utilization on allocation-intensive workloadNeedsInvestigationPerformance

#23182 opened 2 years ago by bryanpkc

-l=4 build fails on SolarisNeedsFixOS-Solaris

#23168 opened 2 years ago by bradfitz

delineate multiple panics by adding newlines between themNeedsFixhelp wanted

#23097 opened 2 years ago by dotaheor

unsafe pointer mapsNeedsInvestigation

#22931 opened 2 years ago by RLH

gdb tests fail on NetBSDNeedsInvestigationOS-NetBSDhelp wanted

#22893 opened 2 years ago by bradfitz

GC can thrash on very small heapsPerformance

#22743 opened 2 years ago by aclements

fractional worker preemption causes performance degradation for single cpuNeedsInvestigationPerformance

#22693 opened 2 years ago by TocarIP

goroutines linger in GC assist queueNeedsInvestigationPerformance

#22654 opened 2 years ago by rhysh

TestWindowsStackMemoryCgo is flakyNeedsInvestigationOS-Windowshelp wanted

#22575 opened 2 years ago by alexbrainman

race detector: more aggressive scheduler perturbationsNeedsInvestigationRaceDetector

#22569 opened 2 years ago by bcmills

windows-amd64-race builder fails with errno=1455NeedsInvestigationOS-Windows

#22553 opened 2 years ago by alexbrainman

expose faketime for testing on normal architecturesNeedsInvestigation

#22549 opened 2 years ago by whyrusleeping

signal 28 received on thread with no signal stackNeedsInvestigationWaitingForInfo

#22333 opened 2 years ago by jimrobinson

TestLldbPython test fails with lldb 3.8 on linuxNeedsFixTestinghelp wanted

#22299 opened 2 years ago by hyangah

crash on Plan 9 since CL 46033NeedsInvestigationOS-Plan9help wanted

#22227 opened 2 years ago by 0intro

test failures introduced on ppc64le with change to improve fastrandNeedsInvestigation

#22047 opened 2 years ago by laboger

ebpf uprobe supportOS-Linuxhelp wanted

#22008 opened 2 years ago by shashankmjain

use atomic.Store instead of simple assignmentNeedsInvestigationearly-in-cycle

#21931 opened 2 years ago by minaevmike

big performance penalty with runtime.LockOSThreadNeedsInvestigation

#21827 opened 2 years ago by navytux

avoid functions forbidden on Windows 10 UWPNeedsInvestigationOS-Windowshelp wanted

#21805 opened 2 years ago by MaxRis

add mode for pointer-past-end testingNeedsFix

#21730 opened 2 years ago by aclements

improve "sweep increased allocation count" diagnosticsNeedsFix

#21729 opened 2 years ago by aclements

Reducing theoretical heap fragmentationGarbageCollector

#21695 opened 2 years ago by RLH

improve barrier implementation layeringNeedsFix

#21640 opened 2 years ago by josharian

apply strength reduction optimizations to generic map routinesPerformance

#21639 opened 2 years ago by josharian

audit mapfast routines for indirectvalue supportNeedsFixTesting

#21547 opened 2 years ago by josharian

add and use go:nosplitrec compilation directiveNeedsFix

#21314 opened 3 years ago by ianlancetaylor

label runtime functions based on their rolesFeatureRequestNeedsFixhelp wanted

#21190 opened 3 years ago by hyangah

before execve, set signal mask according to os/signal functionsNeedsFixearly-in-cycle

#21078 opened 3 years ago by ianlancetaylor

cannot run GO in Windows Server 2016NeedsInvestigationOS-Windows

#21060 opened 3 years ago by Westwoodmayim

sub optimal gc scalabilityNeedsInvestigationPerformance

#21056 opened 3 years ago by TocarIP

textflag for CABINeedsFixhelp wanted

#21004 opened 3 years ago by crawshaw

add test for syscall failing to create new OS thread during syscall.ExecNeedsFixTesting

#20822 opened 3 years ago by jvshahid

TestGdbPython* fails on solarisNeedsFixOS-SolarisTesting

#20821 opened 3 years ago by binarycrusader

signal handling: sighandler crash due to race with signal.IgnoreNeedsInvestigation

#20748 opened 3 years ago by bcmills

program with deadlock doesn't fail if use -race flagNeedsInvestigationRaceDetector

#20588 opened 3 years ago by nizsheanez

make crashing more useful on WindowsNeedsFixOS-Windowshelp wanted

#20498 opened 3 years ago by bhiggins

select on a shared channel is slow with many PsPerformance

#20351 opened 3 years ago by bradfitz

GC turning on/off disruptive to scheduler and localityNeedsInvestigationPerformanceToolSpeed

#20307 opened 3 years ago by josharian

maps do not shrink after elements removal (delete)NeedsFixPerformance

#20135 opened 3 years ago by genez

fatal error: addspecial on invalid pointerNeedsInvestigationOS-Androidhelp wantedmobile

#20082 opened 3 years ago by fjl

TestSetGCPercent flakyNeedsInvestigationTestinghelp wanted

#20076 opened 3 years ago by josharian

add per-G shadows of writeBarrier.enabledPerformanceProposalProposal-Accepted

#20005 opened 3 years ago by sorear

reuse evacuated map overflow bucketsPerformance

#19992 opened 3 years ago by josharian

crash in hybrid barrier initializing C memoryNeedsInvestigation

#19928 opened 3 years ago by rsc

count globals toward GC triggerNeedsInvestigationPerformance

#19839 opened 3 years ago by josharian

redirect println(runtime.writeErr) to NSLog(asl_log) on iOSProposalProposal-Accepted

#19744 opened 3 years ago by bronze1man

performance problem with many Cgo callsPerformance

#19574 opened 3 years ago by petermattis

better support for 64bit div/mod operations on 32bit platformsPerformance

#19509 opened 3 years ago by martisch

measure actual CPU time of GC

#19497 opened 3 years ago by aclements

working with small maps is 4x-10x slower than in nodejsPerformance

#19495 opened 3 years ago by navytux

avoid multiple returns from deferproc

#19466 opened 3 years ago by randall77

signal handling: async signals should forward to existing C handlers by default

#19465 opened 3 years ago by bcmills

osyield is expensive on darwin?OS-DarwinPerformanceearly-in-cycle

#19409 opened 3 years ago by josharian

TestStackGrowth "finalizer did not run" flakesNeedsInvestigationTesting

#19381 opened 3 years ago by bradfitz

do map growth work on readsPerformance

#19094 opened 3 years ago by josharian

add AlignedN types that can be used to increase alignmentProposalProposal-Hold

#19057 opened 3 years ago by ianlancetaylor

timeout in runtime/pprof on linux-amd64-raceNeedsInvestigationTesting

#18884 opened 3 years ago by dsnet

refactor assembly for C calls in signal handlers

#18352 opened 3 years ago by bcmills

dlopen/dlsym without CGo

#18296 opened 3 years ago by iamacarpet

scheduler is slow when goroutines are frequently wokenNeedsInvestigationPerformance

#18237 opened 3 years ago by philhofer

frequent blocking syscalls cause high sysmon overheadNeedsInvestigationPerformance

#18236 opened 3 years ago by philhofer

latency in sweep assists when there's no garbageNeedsFix

#18155 opened 3 years ago by rhysh

new goroutines can spend excessive time in morestackNeedsInvestigationPerformanceearly-in-cycle

#18138 opened 3 years ago by petermattis

stack growth during critical section harms performanceNeedsInvestigationPerformance

#18020 opened 3 years ago by gyuho

aggressive GC completion is disruptive to co-tenantsNeedsInvestigationPerformanceearly-in-cycle

#17969 opened 3 years ago by rhysh

nice -20 causes thread exhaustion on ARMNeedsInvestigation

#17803 opened 3 years ago by shahinv

remove all pointers from type information

#17724 opened 3 years ago by crawshaw

preemption takes longer on OpenBSDNeedsInvestigationOS-OpenBSD

#17712 opened 3 years ago by mdempsky

gdb command "goroutine 1 bt" fails on core fileDebuggingNeedsFix

#17575 opened 3 years ago by kayuuzu

remove mutex from UDP reads/writesNeedsInvestigationPerformance

#17520 opened 3 years ago by neild

re-enable TestGdbPython and TestGdbBacktrace on linux/ppc64 (BE) if/when it gets cgo supportNeedsFix

#17366 opened 3 years ago by bradfitz

expose number of running/runnable goroutinesNeedsFixearly-in-cycle

#17089 opened 3 years ago by fd

mark long lived objects with a special flagFeatureRequestNeedsDecision

#17047 opened 3 years ago by dlsniper

hung system call starting process on OS X 10.8NeedsInvestigationOS-Darwin

#17033 opened 3 years ago by bradfitz

profile goroutine creationNeedsDecision

#16894 opened 3 years ago by rhysh

simplify brk_ usage on plan9OS-Plan9

#16839 opened 4 years ago by josharian

use frame pointers for callersNeedsFixPerformanceearly-in-cycle

#16638 opened 4 years ago by dvyukov

Add loosely ordered channels?Proposal

#16364 opened 4 years ago by YuriyNasretdinov

main_init_done can be implemented more efficientlyNeedsFixPerformance

#15943 opened 4 years ago by ianlancetaylor

checkmark doesn't follow one-word objects with finalizersNeedsFix

#15903 opened 4 years ago by aclements

unexpected fault address 0xffffffffffffffff (and other more innocent addresses)

#15861 opened 4 years ago by MStoykov

pprof should report non-heap memoryFeatureRequestNeedsFix

#15848 opened 4 years ago by aclements

add SchedStats APIFeatureRequestProposalProposal-Holdearly-in-cycle

#15490 opened 4 years ago by deft-code

significant performance improvement on single core machines

#15395 opened 4 years ago by icecrime

heavy time.Now usage cause taskgated to consume lots of cpuNeedsInvestigationPerformance

#15290 opened 4 years ago by davecheney

floating point error panicOS-Plan9

#15234 opened 4 years ago by sirnewton01

avoid unnecessary work in allocSpanLocked

#15226 opened 4 years ago by josharian

current heapdump format is undocumentedDocumentationNeedsFix

#15169 opened 4 years ago by mdempsky

40us pause in file-backed serve loopsPerformance

#15110 opened 4 years ago by dbentley

hot vars and cache linesNeedsInvestigation

#14980 opened 4 years ago by josharian

consider write barrier short-circuit when *dst == srcPerformance

#14921 opened 4 years ago by josharian

x_cgo_init determines stacklo incorrectly for some Solaris versions

#14865 opened 4 years ago by binarycrusader

GC causes latency spikesNeedsInvestigationPerformanceWaitingForInfoearly-in-cycle

#14812 opened 4 years ago by Dieterbe

117

throttle heap growth

#14735 opened 4 years ago by dvyukov

add softfloat for mips64?

#14635 opened 4 years ago by minux

let idle OS threads exitNeedsDecision

#14592 opened 4 years ago by brianmario

rationalize runtime.ErrorsGo2Go2CleanupProposal

#14443 opened 4 years ago by aclements

_cgoCheckPointer0 extreme overhead

#14265 opened 4 years ago by tgulacsi

GC should wake up idle PsNeedsFixPerformance

#14179 opened 4 years ago by aclements

improve performance of IndexByte on older processorsNeedsFixPerformance

#14059 opened 4 years ago by randall77

runtime-gdb.py does not exist for gccgo

#13641 opened 4 years ago by laboger

c-shared builds fail with musllibc

#13492 opened 4 years ago by mdempsky

additional memory profiler report modes or similar

#13463 opened 4 years ago by dvyukov

annotation for sysAlloced types

#13386 opened 4 years ago by aclements

print all threads in GOTRACEBACK >= allNeedsFix

#13161 opened 4 years ago by aclements

lock_sema.go uses LIFO ordering for waking blocked Ms

#13056 opened 4 years ago by mdempsky

Plan 9 stuck forever in TestNoHelperGoroutinesOS-Plan9

#12992 opened 4 years ago by bradfitz

merge .go files produced by cgo into their counterparts

#12952 opened 4 years ago by nodirt

runtime-gdb_test mapvar failure on Fedora 20

#12830 opened 4 years ago by MartinSteffen

memory and performance degradation

#12640 opened 4 years ago by dvyukov

throw in linked c++ library causes app crash even if caught, on windows platformNeedsInvestigationOS-Windowshelp wanted

#12516 opened 4 years ago by superbaddude

c-shared with LD_PRELOAD does not work for some programs

#12465 opened 4 years ago by AkihiroSuda

revisit non-constant assist ratio

#12234 opened 5 years ago by aclements

check for no preemption during write barrier

#12069 opened 5 years ago by rsc

check indirect calls for nosplitNeedsInvestigation

#12037 opened 5 years ago by rsc

reenable TestCgoCallbackGC on dragonflyNeedsFixOS-Dragonfly

#11990 opened 5 years ago by mikioh

whole span reclaimer is expensive

#11979 opened 5 years ago by aclements

Version() string should be more easily discernible

#11972 opened 5 years ago by griesemer

Additional Allocator Metrics in `runtime.MemStats`

#11890 opened 5 years ago by matttproud

make panic dumps more readableNeedsDecision

#11850 opened 5 years ago by eloff

make it possible to know the go initialization in shared libraries is finished without calling a go function

#11768 opened 5 years ago by hnakamur

refactor into separate subpackagesNeedsFix

#11647 opened 5 years ago by michaelmatloob

display fully-qualified types when strings are equal in unequal type panicNeedsInvestigation

#11634 opened 5 years ago by Frumious

document P statesDocumentation

#11425 opened 5 years ago by aclements

support dlclose with -buildmode=c-shared

#11100 opened 5 years ago by mattn

optimize arm atomic operations

#10873 opened 5 years ago by minux

should traceTickDiv be different for different architectures?

#10554 opened 5 years ago by minux

GC behavior in non-steady mode

#10064 opened 5 years ago by dvyukov

dead Gs cause span fragmentation

#9869 opened 5 years ago by randall77

TestGdbLoadRuntimeSupport fails on non intel platforms

#9820 opened 5 years ago by davecheney

cgo performance tracking bugPerformance

#9704 opened 5 years ago by minux

support partial object collection in GCGarbageCollector

#9618 opened 5 years ago by yichengq

reduce StackGuardNeedsFix

#9214 opened 5 years ago by rsc

support parallel cache-oblivious algorithmsPerformance

#9129 opened 5 years ago by dvyukov

remove implementation restriction on channel element size

#9120 opened 5 years ago by bradfitz

make chan-based generators fasterPerformance

#8903 opened 5 years ago by dvyukov

special case chan struct{}Performance

#8902 opened 5 years ago by dvyukov

squeeze Hchan into 64 bytes Performance

#8901 opened 5 years ago by dvyukov

throttle goroutines on async chans Performance

#8900 opened 5 years ago by dvyukov

lock-free channelsPerformance

#8899 opened 5 years ago by dvyukov

special case timer channelsNeedsFixPerformanceearly-in-cycle

#8898 opened 5 years ago by dvyukov

fine-grained locking in selectPerformanceearly-in-cycle

#8896 opened 5 years ago by dvyukov

remove unnecessary allocations in convT2EPerformance

#8892 opened 5 years ago by dvyukov

don't do unnecessary loads on malloc fast pathPerformance

#8887 opened 5 years ago by dvyukov

don't pass *Type to new Performance

#8886 opened 5 years ago by dvyukov

consider adding 24-byte size classNeedsInvestigationPerformance

#8885 opened 5 years ago by dvyukov

efficient access to thread-local dataPerformance

#8884 opened 5 years ago by dvyukov

consider using SetFileIoOverlappedRangeOS-WindowsPerformance

#8883 opened 5 years ago by dvyukov

shrink stacks more aggressively on explicit GC

#8758 opened 5 years ago by randall77

unify API for runtime/internal/atomic and sync/atomicPerformance

#8739 opened 5 years ago by dvyukov

windows system clock resolution issueNeedsInvestigationOS-Windows

#8687 opened 5 years ago by defia

make GC runtime stats test run on GCE

#8634 opened 6 years ago by bradfitz

don't allocate for non-escaping conversions to interface{}Performance

#8618 opened 6 years ago by randall77

fatal error: cannot map pages in arena address space on WindowsOS-Windows

#8491 opened 6 years ago by gopherbot

TestStackMem needs to be run in isolation to be accurate

#8446 opened 6 years ago by randall77

improve goroutine profiler

#7926 opened 6 years ago by dvyukov

use user-mode scheduling on WindowsOS-WindowsPerformanceThinking

#7876 opened 6 years ago by dvyukov

gc can add clock tick latency when HPETs are not used

#7763 opened 6 years ago by 4ad

stack traces of endless recursion should print top and bottomNeedsInvestigationhelp wanted

#7181 opened 6 years ago by griesemer

runtime_test execution of nm uses system go, not go in tree

#7089 opened 6 years ago by randall77

CTRL_CLOSE_EVENT should generate SIGHUP on WindowsOS-WindowsSuggested

#6948 opened 6 years ago by anacrolix

sockets closed by remote peer may remain undetected by poller

#6753 opened 6 years ago by remyoudompheng

win32 should support more than 64 processorsOS-Windows

#6296 opened 7 years ago by lexprfuncall

malloc flags should be subsumed by the type information provided to mallogc

#6237 opened 7 years ago by lexprfuncall

threadcreate profile is broken

#6104 opened 7 years ago by dvyukov

problems running Windows binary under WINEOS-Windows

#5831 opened 7 years ago by hanwen

TestCgoCrashHandler and TestCgoSignalDeadlock compilation failure on openbsd/amd64OS-OpenBSD

#5415 opened 7 years ago by gopherbot

detect zombie goroutines

#5308 opened 7 years ago by dvyukov

consider caching previous map hash valuePerformance

#5147 opened 7 years ago by bradfitz

add a "goroutine apply all" function to GDB plugin

#4439 opened 7 years ago by remyoudompheng

runtime.Caller returns always '/' separator in file paths on WindowsNeedsDecisionOS-Windows

#3335 opened 8 years ago by gopherbot

windows DLL mappings interfere with 32-bit memory allocationOS-Windowshelp wanted

#2323 opened 8 years ago by gopherbot