https://llvm.org/bugs/show_bug.cgi?id=25643
Bug ID: 25643
Summary: Random failure of
projects/compiler-rt/test/tsan/memcmp_race.cc
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: hjl.to...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
On Fedora 22 and Fedora 23 x86-64, I got
FAIL: ThreadSanitizer :: memcmp_race.cc (26625 of 27077)
******************** TEST 'ThreadSanitizer :: memcmp_race.cc' FAILED
********************
Script:
--
/export/build/gnu/llvm-clang-x32-bootstrap-cmake/stage2/build-x86_64-linux-gnux32/./bin/clang
--driver-mode=g++ -fsanitize=thread -Wall -m64 -gline-tables-only -O1
/export/gnu/import/git/llvm-x32/projects/compiler-rt/test/tsan/memcmp_race.cc
-o
/export/build/gnu/llvm-clang-x32-bootstrap-cmake/stage2/build-x86_64-linux-gnux32/projects/compiler-rt/test/tsan/Output/memcmp_race.cc.tmp
&& /export/gnu/import/git/llvm-x32/projects/compiler-rt/test/tsan/deflake.bash
/export/build/gnu/llvm-clang-x32-bootstrap-cmake/stage2/build-x86_64-linux-gnux32/projects/compiler-rt/test/tsan/Output/memcmp_race.cc.tmp
| FileCheck
/export/gnu/import/git/llvm-x32/projects/compiler-rt/test/tsan/memcmp_race.cc
--
Exit Code: 1
Command Output (stderr):
--
/export/gnu/import/git/llvm-x32/projects/compiler-rt/test/tsan/memcmp_race.cc:41:11:
error: expected string not found in input
// CHECK: #0 memcmp
^
<stdin>:9:2: note: scanning from here
[failed to restore the stack]
^
<stdin>:12:123: note: possible intended match here
#0 operator new[](unsigned long)
/export/gnu/import/git/llvm-x32/projects/compiler-rt/lib/tsan/rtl/tsan_new_delete.cc:51:3
(memcmp_race.cc.tmp+0x0000004a530e)
^
--
********************
It fails about 1 of 10 runs.
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