Date: Tue, 07 May 2024 22:49:04 +0000 From: bugzilla-noreply@freebsd.org To: threads@FreeBSD.org Subject: [Bug 278845] OpenMP Patches to prevent locking, hanging and CPU limiting to single core. Message-ID: <bug-278845-13406@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278845 Bug ID: 278845 Summary: OpenMP Patches to prevent locking, hanging and CPU limiting to single core. Product: Base System Version: 14.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: threads Assignee: threads@FreeBSD.org Reporter: cbl@cbl.us CC: dim@FreeBSD.org We worked with LLVM OpenMP development group to get a couple of PR fixes ad= ded to fix some big bugs we've been experiencing.=20 Fix#1 - Fixes forked processes from hanging: https://github.com/llvm/llvm-project/pull/88539 Original issue reported: https://github.com/llvm/llvm-project/issues/86684 Fix#2 - Fixes child processes to use affinity_none. Before they were limite= d to using a single cpu core for all child processes.=20 https://github.com/llvm/llvm-project/pull/91391 Original issue reported: https://github.com/llvm/llvm-project/issues/91098 Fix#2 is only needed in version of llvm 16.x and later. My original issue shows it's not an issue in 14.x or 15.x. Since FreeBSD 14.0 and 13.3 levera= ge 16.x and 17.x, this bug was triggered when we upgraded servers to either release.=20 Hoping we can get both into 14.1 in time for it's upcoming release. --=20 You are receiving this mail because: You are the assignee for the bug.=
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