Re: Waiting for bufdaemon

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