Date: Fri, 15 Jan 2021 18:35:27 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: =?utf-8?Q?Mika=C3=ABl?= Urankar <mikael@freebsd.org> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Waiting for bufdaemon Message-ID: <YAHET2xB%2Bnnc7IgZ@kib.kiev.ua> In-Reply-To: <51df64cc-f01c-0030-a708-f4002be6411e@FreeBSD.org> References: <7c4da243-52ff-c5ee-3d56-1ae651286e0e@alvermark.net> <369b3d82-98c5-b31e-6168-4003a042f174@FreeBSD.org> <YAGua8f8G57SbUMT@kib.kiev.ua> <556d40b8-92d7-303e-7d87-ea496d0ca733@FreeBSD.org> <YAG4g7dJbRWM7act@kib.kiev.ua> <51df64cc-f01c-0030-a708-f4002be6411e@FreeBSD.org>
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On Fri, Jan 15, 2021 at 05:18:56PM +0100, Mikaël Urankar wrote: > On 15/01/2021 16:45, Konstantin Belousov wrote: > > On Fri, Jan 15, 2021 at 04:30:19PM +0100, Mikaël Urankar wrote: > > > On 15/01/2021 16:02, Konstantin Belousov wrote: > > > > On Fri, Jan 15, 2021 at 03:56:01PM +0100, Mikaël Urankar wrote: > > > > > On 15/01/2021 11:26, Jakob Alvermark wrote: > > > > > > Hi, > > > > > > > > > > > > > > > > > > When rebooting my thinkpad the 'bufdaemon' times out: > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufdaemon' to stop ... timed > > > > > > out > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufspacedaemon-0' to stop > > > > > > ... timed out > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufspacedaemon-1' to stop > > > > > > ... timed out > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufspacedaemon-2' to stop > > > > > > ... timed out > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufspacedaemon-3' to stop > > > > > > ... timed out > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufspacedaemon-4' to stop > > > > > > ... timed out > > > > > > > > > > > > Waiting (max 60 seconds) for system thread 'bufspacedaemon-5' to stop > > > > > > ... timed out > > > > > > > > > > > > > > > > > > This started happening recently (within the last week I think). > > > > > > > > > > Hi, > > > > > > > > > > I'm also affected. I have an AMD Ryzen 9 3900X cpu, running bare metal. > > > > > > > > > > 5844bd058aed6f3d0c8cbbddd6aa95993ece0189 (jobc: rework detection of orphaned > > > > > groups) "seems" ok > > > > > > > > > > cd240c9cf100bec3def38ceb4a320611b1d02693 (x86 vdso gettc: Add RDTSCP > > > > > support), affected by the timeout. > > > > > > > > > > I haven't tried the intermediate commit yet. > > > > > > > > > > My intel machine doesn't seem to be affected > > > > > > > > If you revert only 9e680e4005b7, is it fixed ? > > > > > > > Yes it seems to be fixed with 9e680e4005b7 reverted (I've only done 2 tests, > > > I can do more if you want) > > Please show me the output from sysctl > > kern.timecounter > > kern.eventtimer > > and first 100 lines of dmesg from the verbose boot (that contains the CPU > > ident lines). > > > > I put the /var/run/dmesg.boot file on freefall /home/mikael/dmesg.boot (it > seems to be truncated though, I don't know how to retrieve the full log) > > sysctl kern.timecounter > kern.timecounter.tsc_shift: 1 > kern.timecounter.smp_tsc_adjust: 0 > kern.timecounter.smp_tsc: 1 > kern.timecounter.invariant_tsc: 1 > kern.timecounter.fast_gettime: 1 > kern.timecounter.tick: 1 > kern.timecounter.choice: ACPI-fast(900) HPET(950) i8254(0) TSC-low(1000) > dummy(-1000000) > kern.timecounter.hardware: TSC-low > kern.timecounter.alloweddeviation: 5 > kern.timecounter.timehands_count: 2 > kern.timecounter.stepwarnings: 0 > kern.timecounter.tc.ACPI-fast.quality: 900 > kern.timecounter.tc.ACPI-fast.frequency: 3579545 > kern.timecounter.tc.ACPI-fast.counter: 1470549582 > kern.timecounter.tc.ACPI-fast.mask: 4294967295 > kern.timecounter.tc.HPET.quality: 950 > kern.timecounter.tc.HPET.frequency: 14318180 > kern.timecounter.tc.HPET.counter: 378058131 > kern.timecounter.tc.HPET.mask: 4294967295 > kern.timecounter.tc.i8254.quality: 0 > kern.timecounter.tc.i8254.frequency: 1193182 > kern.timecounter.tc.i8254.counter: 20425 > kern.timecounter.tc.i8254.mask: 65535 > kern.timecounter.tc.TSC-low.quality: 1000 > kern.timecounter.tc.TSC-low.frequency: 1900039387 > kern.timecounter.tc.TSC-low.counter: 2386729797 > kern.timecounter.tc.TSC-low.mask: 4294967295 > > sysctl kern.eventtimer > kern.eventtimer.choice: LAPIC(600) HPET(350) HPET1(350) HPET2(350) > i8254(100) RTC(0) > kern.eventtimer.et.HPET2.quality: 350 > kern.eventtimer.et.HPET2.frequency: 14318180 > kern.eventtimer.et.HPET2.flags: 3 > kern.eventtimer.et.HPET1.quality: 350 > kern.eventtimer.et.HPET1.frequency: 14318180 > kern.eventtimer.et.HPET1.flags: 3 > kern.eventtimer.et.HPET.quality: 350 > kern.eventtimer.et.HPET.frequency: 14318180 > kern.eventtimer.et.HPET.flags: 3 > kern.eventtimer.et.RTC.quality: 0 > kern.eventtimer.et.RTC.frequency: 32768 > kern.eventtimer.et.RTC.flags: 17 > kern.eventtimer.et.i8254.quality: 100 > kern.eventtimer.et.i8254.frequency: 1193182 > kern.eventtimer.et.i8254.flags: 1 > kern.eventtimer.et.LAPIC.quality: 600 > kern.eventtimer.et.LAPIC.frequency: 50001034 > kern.eventtimer.et.LAPIC.flags: 7 > kern.eventtimer.periodic: 0 > kern.eventtimer.timer: LAPIC > kern.eventtimer.idletick: 0 > kern.eventtimer.singlemul: 2 It is clipped at the start, and that was the information which I need. Add something like kern.msgbufsize=1048576 to /boot/loader.conf and try again. I need to see the lines starting with CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (1992.08-MHz K8-class CPU) Origin="GenuineIntel" Id=0x806ea Family=0x6 Model=0x8e Stepping=10 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> ... (well, this is my w/s, your CPU would be different of course).
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