llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux` 
running on `sanitizer-buildbot1` while building `clang` at step 2 "annotate".

Full details are available at: 
https://lab.llvm.org/buildbot/#/builders/66/builds/1264

Here is the relevant piece of the build log for the reference:
```
Step 2 (annotate) failure: 'python 
../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'
 (failure)
...
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:72: 
note: The test suite configuration requested an individual test timeout of 0 
seconds but a timeout of 900 seconds was requested on the command line. Forcing 
timeout to be 900 seconds.
-- Testing: 9996 tests, 80 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
TIMEOUT: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c (9996 of 
9996)
******************** TEST 'SanitizerCommon-hwasan-x86_64-Linux :: 
Posix/fork_threaded.c' FAILED ********************
Exit Code: -9
Timeout: Reached timeout of 900 seconds

Command Output (stderr):
--
RUN: at line 1: /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang  
-gline-tables-only -fsanitize=hwaddress -fuse-ld=lld 
-fsanitize-hwaddress-experimental-aliasing  -m64 -funwind-tables  
-I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c
 -o 
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
 && env HWASAN_OPTIONS=die_after_fork=0  
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang 
-gline-tables-only -fsanitize=hwaddress -fuse-ld=lld 
-fsanitize-hwaddress-experimental-aliasing -m64 -funwind-tables 
-I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c
 -o 
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ env HWASAN_OPTIONS=die_after_fork=0 
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
==3424819==ERROR: HWAddressSanitizer: invalid-free on address 0x684a00000000 at 
pc 0x55d302954879 on thread T1
tags: 06/ad (ptr/mem)
==3425827==ERROR: HWAddressSanitizer: invalid-free on address 0x685200000000 at 
pc 0x55d302954879 on thread T2
tags: 01/02 (ptr/mem)

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 

68 warning(s) in tests
Slowest Tests:
--------------------------------------------------------------------------
900.10s: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c
185.02s: ThreadSanitizer-x86_64 :: bench_threads.cpp
104.43s: ThreadSanitizer-x86_64 :: signal_thread.cpp
79.83s: libFuzzer-x86_64-libcxx-Linux :: out-of-process-fuzz.test
79.17s: libFuzzer-x86_64-static-libcxx-Linux :: out-of-process-fuzz.test
79.16s: libFuzzer-x86_64-default-Linux :: out-of-process-fuzz.test
69.30s: libFuzzer-i386-libcxx-Linux :: disable-leaks.test
63.24s: libFuzzer-i386-default-Linux :: disable-leaks.test
63.04s: libFuzzer-i386-static-libcxx-Linux :: disable-leaks.test
56.94s: libFuzzer-i386-default-Linux :: value-profile-switch.test
56.23s: libFuzzer-i386-libcxx-Linux :: value-profile-switch.test
53.72s: libFuzzer-i386-static-libcxx-Linux :: value-profile-switch.test
46.44s: libFuzzer-i386-libcxx-Linux :: value-profile-cmp4.test
46.05s: libFuzzer-x86_64-static-libcxx-Linux :: fork.test
45.97s: libFuzzer-i386-libcxx-Linux :: fork.test
45.58s: libFuzzer-i386-libcxx-Linux :: fork_corpus_groups.test
45.55s: libFuzzer-i386-default-Linux :: fork.test
Step 11 (test compiler-rt symbolizer) failure: test compiler-rt symbolizer 
(failure)
...
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu".
 This path was found by running 
['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', 
'--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: 
/b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:72: 
note: The test suite configuration requested an individual test timeout of 0 
seconds but a timeout of 900 seconds was requested on the command line. Forcing 
timeout to be 900 seconds.
-- Testing: 9996 tests, 80 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
TIMEOUT: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c (9996 of 
9996)
******************** TEST 'SanitizerCommon-hwasan-x86_64-Linux :: 
Posix/fork_threaded.c' FAILED ********************
Exit Code: -9
Timeout: Reached timeout of 900 seconds

Command Output (stderr):
--
RUN: at line 1: /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang  
-gline-tables-only -fsanitize=hwaddress -fuse-ld=lld 
-fsanitize-hwaddress-experimental-aliasing  -m64 -funwind-tables  
-I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c
 -o 
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
 && env HWASAN_OPTIONS=die_after_fork=0  
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang 
-gline-tables-only -fsanitize=hwaddress -fuse-ld=lld 
-fsanitize-hwaddress-experimental-aliasing -m64 -funwind-tables 
-I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 
/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c
 -o 
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ env HWASAN_OPTIONS=die_after_fork=0 
/b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
==3424819==ERROR: HWAddressSanitizer: invalid-free on address 0x684a00000000 at 
pc 0x55d302954879 on thread T1
tags: 06/ad (ptr/mem)
==3425827==ERROR: HWAddressSanitizer: invalid-free on address 0x685200000000 at 
pc 0x55d302954879 on thread T2
tags: 01/02 (ptr/mem)

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..

68 warning(s) in tests
Slowest Tests:
--------------------------------------------------------------------------
900.10s: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c
185.02s: ThreadSanitizer-x86_64 :: bench_threads.cpp
104.43s: ThreadSanitizer-x86_64 :: signal_thread.cpp
79.83s: libFuzzer-x86_64-libcxx-Linux :: out-of-process-fuzz.test
79.17s: libFuzzer-x86_64-static-libcxx-Linux :: out-of-process-fuzz.test
79.16s: libFuzzer-x86_64-default-Linux :: out-of-process-fuzz.test
69.30s: libFuzzer-i386-libcxx-Linux :: disable-leaks.test
63.24s: libFuzzer-i386-default-Linux :: disable-leaks.test
63.04s: libFuzzer-i386-static-libcxx-Linux :: disable-leaks.test
56.94s: libFuzzer-i386-default-Linux :: value-profile-switch.test
56.23s: libFuzzer-i386-libcxx-Linux :: value-profile-switch.test
53.72s: libFuzzer-i386-static-libcxx-Linux :: value-profile-switch.test
46.44s: libFuzzer-i386-libcxx-Linux :: value-profile-cmp4.test
46.05s: libFuzzer-x86_64-static-libcxx-Linux :: fork.test
45.97s: libFuzzer-i386-libcxx-Linux :: fork.test
45.58s: libFuzzer-i386-libcxx-Linux :: fork_corpus_groups.test
45.55s: libFuzzer-i386-default-Linux :: fork.test

```

https://github.com/llvm/llvm-project/pull/96686
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