Date: Sun, 21 Aug 2022 02:03:24 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 265965] Intel SpeedShift (hwpstate_intel) seems to affect system stability Message-ID: <bug-265965-227@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265965 Bug ID: 265965 Summary: Intel SpeedShift (hwpstate_intel) seems to affect system stability Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: henry.hu.sh@gmail.com Recently I've upgraded my system with a Intel 12th gen i5 12600K CPU (with a Z690 motherboard and DDR5 memories). After that, when I build world with -j= 16, it often fails with all kinds of clang crashes. The crashes happen in random places. Some examples: * https://pastebin.com/sPi9EJ7Q * https://pastebin.com/KtBQPzd7 The stack traces do not make much sense, other than it seems to often relat= ed to jemalloc. I happen to notice that the CPU frequencies shown in `sysctl dev.cpu` do not make sense. The cpufreq seems to be using the hwpstate_intel driver. I kind= of remember that this was an old driver, and the SpeedStep (est) driver is bet= ter, so I disabled it in driver hints. Now: * The frequencies make sense: dev.cpu.0.freq_levels: 3701/125000 3700/125000 3500/114836 3300/106234 3100/96794 2900/88829 2700/80049 2500/72716 2200/61= 704 2000/55088 1800/47739 1600/41680 1400/34950 1200/29439 1000/24183 800/18310 * I no longer get crashes! I can build world with -j16 with no issue. Thus, I think that the hwpstate_intel driver should possibly be disabled for the newer Intel CPUs (and I think it's recommended to be disabled anyway?). --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-265965-227>