https://bugs.llvm.org/show_bug.cgi?id=36705
Bug ID: 36705
Summary: Assertion failure at kmp_runtime.cpp(5915):
thread->th.th_reap_state == 1.
Product: OpenMP
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Runtime Library
Assignee: unassignedb...@nondot.org
Reporter: jdenny.o...@gmail.com
CC: llvm-bugs@lists.llvm.org
I am testing with clang/OpenMP from master.
In the following example, where N=1 and M is in the range [2,7], I see the
following assert failure after usually less than 5 runs. I see no failure
after 100 runs in the following cases: (a) with KMP_HOT_TEAMS_MODE=1 (b) with
any other combination of N and M (each limited to the range [1,8]), or (c) with
M omitted.
$ cat test.c
#include <stdlib.h>
int main(int argc, const char *argv[]) {
if (argc > 1) {
#pragma omp target teams num_teams(atoi(argv[1]))
;
}
if (argc > 2) {
#pragma omp target teams num_teams(atoi(argv[2]))
;
}
return 0;
}
$ clang -fopenmp test.c
$ ./a.out $N $M
Assertion failure at kmp_runtime.cpp(5915): thread->th.th_reap_state == 1.
OMP: Error #13: Assertion failure at kmp_runtime.cpp(5915).
OMP: Hint Please submit a bug report with this message, compile and run
commands used, and machine configuration info including native compiler and
operating system versions. Faster response will be obtained by including all
program sources. For information on submitting this issue, please see
https://bugs.llvm.org/.
Aborted (core dumped)
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