Date: Tue, 22 Aug 2017 05:56:49 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 221029] AMD Ryzen: strange compilation failures using poudriere or plain buildkernel/buildworld Message-ID: <bug-221029-8-5Lkmcyb2G4@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-221029-8@https.bugs.freebsd.org/bugzilla/> References: <bug-221029-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221029 --- Comment #89 from Don Lewis <truckman@FreeBSD.org> --- In my latest experiment, I hacked the sched_ule steal_idle code to only allow threads to be stolen from the other SMT thread on the same core and set steal_idle=1. CPU idle time was greatly reduced, but ghc failed with SIGBUS and chromium failed with the rename problem. I don't necessarily count this as a failure since the first time I tried steal_idle=0, balance=0, and affinity=1000 I got the same two failures. The rename problems just seem to be really rare. The ghc failures definitely seemed to improve with steal_idle=0, but this experiment only provides one data point. -- You are receiving this mail because: You are the assignee for the bug.
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