Date: Mon, 05 Feb 2018 16:50:41 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 225584] Various compile process hang on Ryzen, but not on Intel Message-ID: <bug-225584-8-AUrSKp2ccS@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-225584-8@https.bugs.freebsd.org/bugzilla/> References: <bug-225584-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225584 --- Comment #11 from Eugene Grosbein <eugen@freebsd.org> --- (In reply to mike from comment #9) These threads locked in "umtxn" state remind me of https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D186114 that revealed long-standing bugs in our libc being not cancel-safe for multi-threaded code (fixed now). The problem was a race and could be reproduced in very specific load pattern leading mutex lo= ck leak and following live-lock. I suspect we may be facing similar problem here that is not hardware-specif= ic but is more probably to hit with specific hardware due to different timings. --=20 You are receiving this mail because: You are the assignee for the bug.=
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