https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265997
--- Comment #2 from [email protected] --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=768f6373eb3d60e346d3bfa495e04315aeed8ff9 commit 768f6373eb3d60e346d3bfa495e04315aeed8ff9 Author: firk <[email protected]> AuthorDate: 2022-08-26 08:05:56 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2022-08-26 17:34:29 +0000 Fix compat10 semaphore interface race Wrong has-waiters and missing unconditional _count==0 check may cause infinite waiting with already non-zero count. 1) properly clear _has_waiters flag when waiting failed to start 2) always check _count before start waiting PR: 265997 Reviewed by: kib MFC after: 1 week Differential revision: https://reviews.freebsd.org/D36272 sys/kern/kern_umtx.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) -- You are receiving this mail because: You are the assignee for the bug.
