[sanitizer][test] Print result in getpwnam_r_invalid_user.cpp #162217
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This test has been flaky failing on sanitizer-ppc64le-linux since at least 9 days ago (https://lab.llvm.org/buildbot/#/builders/72/builds/15257), but the exact cause is unclear because the only output is that `assert(res == 0 || res == ENOENT);` failed. To aid debugging, this patch prints out the result of the `getpwnam_r` call.
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@llvm/pr-subscribers-compiler-rt-sanitizer Author: Thurston Dang (thurstond) ChangesThis test has been flaky failing on sanitizer-ppc64le-linux since at least 9 days ago (https://lab.llvm.org/buildbot/#/builders/72/builds/15257), but the exact cause is unclear because the only output is that To aid debugging, this patch prints out the result of the Full diff: https://github.com/llvm/llvm-project/pull/162217.diff 1 Files Affected:
diff --git a/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp b/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp
index c0d6cfea1fbef..4c6cffee05e51 100644
--- a/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp
+++ b/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp
@@ -14,6 +14,8 @@ int main(void) {
struct passwd *pwdres;
char buf[10000];
int res = getpwnam_r("no-such-user", &pwd, buf, sizeof(buf), &pwdres);
+ fprintf(stderr, "Result: %d\n", res);
+ fflush(stderr);
assert(res == 0 || res == ENOENT);
assert(pwdres == 0);
return 0;
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fmayer
approved these changes
Oct 7, 2025
vitalybuka
approved these changes
Oct 7, 2025
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This test has been flaky failing on sanitizer-ppc64le-linux since at least 9 days ago (https://lab.llvm.org/buildbot/#/builders/72/builds/15257), but the exact cause is unclear because the only output is that
assert(res == 0 || res == ENOENT);failed.To aid debugging, this patch prints out the result of the
getpwnam_rcall.