cmd/cgo/internal/testsanitizers: TestLSAN/lsan2 failures

[gopherbot]

#!watchflakes
default <- pkg == "cmd/cgo/internal/testsanitizers" && test == "TestLSAN/lsan2"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestLSAN/lsan2
=== PAUSE TestLSAN/lsan2
=== CONT  TestLSAN/lsan2
    lsan_test.go:44: /home/swarming/.swarming/w/ir/x/t/TestLSANlsan21255423491/001/lsan2 exited with exit status 1
        
        =================================================================
        ==2366409==ERROR: LeakSanitizer: detected memory leaks
        
        Direct leak of 24 byte(s) in 1 object(s) allocated from:
            #0 0x7ffff75d5704 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
            #1 0x100853a8 in x_cgo_thread_start /_/GOROOT/src/runtime/cgo/gcc_util.c:15
            #2 0x10073838 in runtime.asmcgocall /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_ppc64x.s:719
        
        SUMMARY: AddressSanitizer: 24 byte(s) leaked in 1 allocation(s).
--- FAIL: TestLSAN/lsan2 (1.41s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/cgo/internal/testsanitizers" && test == "TestLSAN/lsan2"

2025-05-13 16:21 gotip-linux-ppc64le_power10 go@a632009c cmd/cgo/internal/testsanitizers.TestLSAN/lsan2 (log)

=== RUN   TestLSAN/lsan2
=== PAUSE TestLSAN/lsan2
=== CONT  TestLSAN/lsan2
    lsan_test.go:44: /home/swarming/.swarming/w/ir/x/t/TestLSANlsan21255423491/001/lsan2 exited with exit status 1
        
        =================================================================
        ==2366409==ERROR: LeakSanitizer: detected memory leaks
        
        Direct leak of 24 byte(s) in 1 object(s) allocated from:
            #0 0x7ffff75d5704 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
            #1 0x100853a8 in x_cgo_thread_start /_/GOROOT/src/runtime/cgo/gcc_util.c:15
            #2 0x10073838 in runtime.asmcgocall /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_ppc64x.s:719
        
        SUMMARY: AddressSanitizer: 24 byte(s) leaked in 1 allocation(s).
--- FAIL: TestLSAN/lsan2 (1.41s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/cgo/internal/testsanitizers" && test == "TestLSAN/lsan2"

2025-05-16 04:37 gotip-linux-amd64-longtest go@4b5a64f4 cmd/cgo/internal/testsanitizers.TestLSAN/lsan2 (log)

=== RUN   TestLSAN/lsan2
=== PAUSE TestLSAN/lsan2
=== CONT  TestLSAN/lsan2
    lsan_test.go:44: /home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2 exited with exit status 1
        
        =================================================================
        ==784837==ERROR: LeakSanitizer: detected memory leaks
        
        Direct leak of 24 byte(s) in 1 object(s) allocated from:
            #0 0x7b38daf58e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
            #1 0x47ad18 in x_cgo_thread_start /_/GOROOT/src/runtime/cgo/gcc_util.c:15
            #2 0x46a87c in runtime.asmcgocall ?:949
            #3 0x43c4b0 in runtime.newm1 (/home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2+0x43c4b0)
            #4 0x43c3a4 in runtime.newm (/home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2+0x43c3a4)
            #5 0x43c9b8 in runtime.startm (/home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2+0x43c9b8)
            #6 0x464d8b in runtime.wakep (/home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2+0x464d8b)
            #7 0x43fc52 in runtime.goschedImpl (/home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2+0x43fc52)
            #8 0x44e910 in runtime.newstack (/home/swarming/.swarming/w/ir/x/t/TestLSANlsan2165035726/001/lsan2+0x44e910)
            #9 0x468cfc in runtime.morestack ?:620
        
        SUMMARY: AddressSanitizer: 24 byte(s) leaked in 1 allocation(s).
--- FAIL: TestLSAN/lsan2 (3.64s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/cgo/internal/testsanitizers" && test == "TestLSAN/lsan2"

2025-07-22 09:48 go1.25-linux-amd64-longtest release-branch.go1.25@1aaf7422 cmd/cgo/internal/testsanitizers.TestLSAN/lsan2 (log)

=== RUN   TestLSAN/lsan2
=== PAUSE TestLSAN/lsan2
=== CONT  TestLSAN/lsan2
    lsan_test.go:44: /home/swarming/.swarming/w/ir/x/t/TestLSANlsan2131750198/001/lsan2 exited with exit status 1
        
        =================================================================
        ==160363==ERROR: LeakSanitizer: detected memory leaks
        
        Direct leak of 24 byte(s) in 1 object(s) allocated from:
            #0 0x7e678d41be8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
            #1 0x47fb58 in x_cgo_thread_start /_/GOROOT/src/runtime/cgo/gcc_util.c:15
            #2 0x46f65c in runtime.asmcgocall ?:949
            #3 0x4408f0 in runtime.newm1 /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/plugin.go:2913
            #4 0x4407e4 in runtime.newm /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/plugin.go:2893
            #5 0x440df8 in runtime.startm /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/plugin.go:3087
            #6 0x469b4b in runtime.wakep /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/plugin.go:3234
            #7 0x445e92 in runtime.newproc.func1 /home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/plugin.go:5154
            #8 0x46d9c9 in runtime.systemstack ?:513
        
        SUMMARY: AddressSanitizer: 24 byte(s) leaked in 1 allocation(s).
--- FAIL: TestLSAN/lsan2 (4.24s)

— watchflakes