** Description changed:
- (marked as not a regression)
-
- Autopkgtest command1 fails for AMD64 and ARM64 for resolute and
+ * Autopkgtest command1 fails for AMD64 and ARM64 for resolute and
stonking:
361s echo "Testing sanitizers ..."
- 361s
- 361s echo '#include <stdlib.h>
- 361s int main() {
- 361s char *x = (char*)malloc(10 * sizeof(char*));
- 361s free(x);
- 361s return x[5];
- 361s }
- 361s ' > foo.c
- 361s clang-$VERSION -o foo -fsanitize=address -O1 -fno-omit-frame-pointer -g
foo.c
- 361s if ! ./foo 2>&1 | grep -q heap-use-after-free ; then
- 361s echo "sanitize=address is failing"
- 361s exit 42
- 361s fi
- 361s
...
361s # fails on i386 with: clang: error: unsupported option
'-fsanitize=thread' for target 'i686-pc-linux-gnu'
361s if [ $DEB_HOST_ARCH != "i386" ]; then
361s clang-$VERSION -o foo -fsanitize=thread -g -O1 foo.c
361s if ! strings ./foo 2>&1 | grep -q "tsan"; then
361s echo "binary doesn't contain tsan code"
361s strings foo
361s exit 42
361s fi
361s if ! ./foo 2>&1 | grep -q "data race"; then
361s echo "sanitize=address is failing"
361s exit 42
361s fi
361s fi
361s sanitize=address is failing
363s autopkgtest [15:23:37]: test command1: -----------------------]
365s autopkgtest [15:23:39]: test command1: - - - - - - - - - - results - -
- - - - - - - -
365s command1 FAIL non-zero exit status 42
+
+ * A more detailed log:
+
+ 318s sanitize=thread is failing; output was:
+ 318s FATAL: ThreadSanitizer: unexpected memory mapping
0xb887028f0000-0xb88702a1d000
+ 318s kernel: 6.8.0-142-generic
+ 318s sysctl: permission denied on key 'vm.mmap_rnd_bits'
+ 318s retrying with ASLR disabled:
+ 318s ==================
+ 318s WARNING: ThreadSanitizer: data race (pid=5063)
+ 318s Write of size 4 at 0xaaaaac013060 by thread T2:
+ 318s #0 Thread2 /tmp/autopkgtest.wiwLhx/build.U5F/src/foo.c:13:9
(foo+0xf7300) (BuildId: 40ed278858a29792531afdb407a474f8e0a39c10)
+ 318s
+ 318s Previous write of size 4 at 0xaaaaac013060 by thread T1:
+ 318s #0 Thread1 /tmp/autopkgtest.wiwLhx/build.U5F/src/foo.c:8:9
(foo+0xf72b8) (BuildId: 40ed278858a29792531afdb407a474f8e0a39c10)
+ 318s
+ 318s Location is global 'Global' of size 4 at 0xaaaaac013060 (foo+0x1573060)
+ 318s
+ 318s Thread T2 (tid=5068, running) created by main thread at:
+ 318s #0 pthread_create <null> (foo+0x687fc) (BuildId:
40ed278858a29792531afdb407a474f8e0a39c10)
+ 318s #1 main /tmp/autopkgtest.wiwLhx/build.U5F/src/foo.c:20:3
(foo+0xf736c) (BuildId: 40ed278858a29792531afdb407a474f8e0a39c10)
+ 318s
+ 318s Thread T1 (tid=5067, finished) created by main thread at:
+ 318s #0 pthread_create <null> (foo+0x687fc) (BuildId:
40ed278858a29792531afdb407a474f8e0a39c10)
+ 318s #1 main /tmp/autopkgtest.wiwLhx/build.U5F/src/foo.c:19:3
(foo+0xf7350) (BuildId: 40ed278858a29792531afdb407a474f8e0a39c10)
+ 318s
+ 318s SUMMARY: ThreadSanitizer: data race
/tmp/autopkgtest.wiwLhx/build.U5F/src/foo.c:13:9 in Thread2
+ 318s ==================
+
+ * Seems like the linux kernel version stonking and resolute use maps
+ memory differently than Tsan expects. This causes a fatal error due to
+ unexpected memory mapping. The fix is to gracefully disable ASLR in the
+ case of this failure, and reattempt the test without ASLR, as is already
+ happening behind the scenes.
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https://bugs.launchpad.net/bugs/2169041
Title:
sanitize=address is failing autopkgtests
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