3 Commits

Author SHA1 Message Date
Kamau Bridgeman
2a408f200c [TSAN] Disable clone_setns test case on PPC64 RHEL 7.9 Targets
The compler-rt test case tsan/Linux/clone_setns.cpp fails on
PowerPC64 RHEL 7.9 targets.
Unshare fails with errno code EINVAL.
It is unclear why this happens specifically on RHEL 7.9 and no other
operating system like Ubuntu 18 or RHEL 8.4 for example.
This patch uses marcos to disable the test case for ppc64 rhel7.9
because there are no XFAIL directives to target rhel 7.9 specifically.

Reviewed By: dvyukov

Differential Revision: https://reviews.llvm.org/D130086
2022-07-19 13:25:21 -05:00
Dmitry Vyukov
19c1d03f97 tsan: ignore some errors in the clone_setns test
Some bots failed with:
unshare failed: 1
https://lab.llvm.org/buildbot/#/builders/70/builds/14101

Look only for the target EINVAL error.

Differential Revision: https://reviews.llvm.org/D113759
2021-11-12 14:12:36 +01:00
Dmitry Vyukov
e91595bf94 tsan: don't start background thread after clone
Start the background thread only after fork, but not after clone.
For fork we did this always and it's known to work (or user code has adopted).
But if we do this for the new clone interceptor some code (sandbox2) fails.
So model we used to do for years and don't start the background thread after clone.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D113744
2021-11-12 12:58:49 +01:00