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Description
Go version
go1.25-devel_6c3b5a2798
Output of go env in your module/workspace:
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE=''
GOARCH='arm64'
GOARM64='v8.0'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/root/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/root/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build4235166786=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='arm64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/dev/null'
GOMODCACHE='/root/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/root/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/root/Code/src/github.com/golang/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/root/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/root/Code/src/github.com/golang/go/pkg/tool/linux_arm64'
GOVCS=''
GOVERSION='go1.25-devel_6c3b5a2798 Thu Jul 3 18:43:56 2025 -0700'
GOWORK=''
PKG_CONFIG='pkg-config'What did you do?
While preparing the upgrade of Fedora 43 to Go 1.25, TestLSAN/lsan1, TestLSAN/lsan2, and TestLSAN/lsan3 failed in aarch64 only. I'm aware that there are several flake issues, but I can reproduce this always.
What did you see happen?
The tests only fail in aarch64. I'm able to reproduce it always, even outside the Fedora CI. (Link to build)
--- FAIL: TestLSAN (30.26s)
--- FAIL: TestLSAN/lsan2 (2.08s)
lsan_test.go:44: /tmp/TestLSANlsan2724864547/001/lsan2 exited with exit status 1
Tracer caught signal 11: addr=0xfbff3e1d0000 pc=0xffff8982c69c sp=0xfbff3a58bb70
==156218==LeakSanitizer has encountered a fatal error.
==156218==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1
==156218==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc)
--- FAIL: TestLSAN/lsan3 (2.14s)
lsan_test.go:44: /tmp/TestLSANlsan33679270241/001/lsan3 exited with exit status 1
Tracer caught signal 11: addr=0xfbff541d0000 pc=0xffff9f81c69c sp=0xfbff4f272b70
==156281==LeakSanitizer has encountered a fatal error.
==156281==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1
==156281==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc)
--- FAIL: TestLSAN/lsan1 (2.15s)
lsan_test.go:49: /tmp/TestLSANlsan1566431062/001/lsan1
exit status 1
Tracer caught signal 11: addr=0xfbff380d7000 pc=0xffff83b9c69c sp=0xfbff3478bb70
==156255==LeakSanitizer has encountered a fatal error.
==156255==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1
==156255==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc)
lsan_test.go:64: output does not contain expected leak error "detected memory leaks"
FAIL
FAIL cmd/cgo/internal/testsanitizers 37.964s
After enabling export LSAN_OPTIONS="verbosity=1:log_threads=1" I got the attached file output
What did you expect to see?
No failures.