cmd/link: DWARFLocationList test failed on linux/riscv64 #76166
Description
Go version
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=''
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/root/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/root/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build26
66689009=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/root/godev/src/go.mod'
GOMODCACHE='/root/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/root/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/root/godev'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/root/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/root/godev/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.26-devel_7244e9221f Thu Oct 30 10:08:55 2025 -0700'
GOWORK=''
PKG_CONFIG='pkg-config'What did you do?
Looking for root cause of https://logs.chromium.org/logs/golang/buildbucket/cr-buildbucket/8699174592434814113/+/u/step/22/log/2
=== RUN TestDWARFLocationList
=== PAUSE TestDWARFLocationList
=== CONT TestDWARFLocationList
dwarf_test.go:290: go build -o /home/swarming/.swarming/w/ir/x/t/TestDWARFLocationList3162122513/001/issue65405.exe ./testdata/dwarf/issue65405: exit status 1
# cmd/link/testdata/dwarf/issue65405
crosscall2_trampoline: nosplit stack over 800 byte limit
crosscall2_trampoline<145>
grows 0 bytes, calls crosscall2<0>
grows 232 bytes, calls runtime.cgocallback<0>
grows 32 bytes, calls runtime.cgocallbackg<0>
grows 32 bytes, calls runtime.cgocallbackg<1>
grows 96 bytes, calls runtime.exitsyscall<1>
grows 136 bytes, calls runtime.casgstatus<1>
grows 104 bytes, calls runtime.(*timeHistogram).record<1>
grows 24 bytes, calls internal/runtime/sys.Len64<1>
grows 8 bytes, calls runtime.panicBounds<1>
grows 152 bytes, calls runtime.panicBounds64<1>
grows 0 bytes, calls runtime.morestack<0>
16 bytes over limit
--- FAIL: TestDWARFLocationList (87.92s)
Bisect shows 7244e92 is the culprit, but LUCI shows 2793728
cc @golang/riscv64 @mknyszek
What did you see happen?
None
What did you expect to see?
Build passed