https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109664
Bug ID: 109664
Summary: Deadlocks with gomp_fatal called from libgomp/plugins/
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libgomp
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: jakub at gcc dot gnu.org
Target Milestone: ---
See thread starting at:
https://gcc.gnu.org/pipermail/gcc-patches/2022-October/603616.html
Issue:
Fatal errors inside mutex-locked regions (i.e. basically anything in the
plugin) will cause it to hang up trying to take the lock to clean everything
up.
Possible solutions:
would be not use gomp_fatal from within the
plugins, but use gomp_error instead and through possibly adjusted plugin
APIs tell libgomp that there was a fatal error and let libgomp unlock
anything that needs unlocking and exit (EXIT_FAILURE); afterwards.
another possibility would be not use gomp_fatal from within the
plugins, but use gomp_error instead and through possibly adjusted plugin
APIs tell libgomp that there was a fatal error and let libgomp unlock
anything that needs unlocking and exit (EXIT_FAILURE); afterwards.
