Re: kernel 100% CPU

On 03/09/2023 17:55, Mateusz Guzik wrote:
> On 9/3/23, Graham Perrin <grahamperrin@gmail.com> wrote:
>> On 02/09/2023 18:31, Mateusz Guzik wrote:
>>> On 9/2/23, Graham Perrin<grahamperrin@gmail.com> wrote:
>>>> … I began the trace /after/ the issue became observable.
>>>> Will it be more meaningful to begin a trace and then reproduce the issue
>>>> (before the trace ends)?
>>>>
>>>> …
>>> Looks like you have a lot of unrelated traffic in there.
>>>
>>> …
>> Instead, <https://mega.nz/folder/dQdgXK4K#Eb-uC02fT63eweQWWwD8TA> the
>> two files from 09:21 this morning. Are these useful?
>>
>> Before this run of DTrace, I quit Firefox and other applications that
>> might be causing noise (and the OS has been restarted since my last run
>> of poudriere-bulk(8)).
>>
>> dtrace -x stackframes=100 -n 'profile-997 /arg0/ { @[stack()] = count();
>> } tick-60s { exit(0); }' -o out.kern_stacks
>>
> Post your "sysctl -a" somewhere.
>
sysctl-a-2023-09-03-18-22.txt added to the MEGA folder is complete, 
including TSLOG-related lines.

Alternatively, tslog under 
<https://bsd-hardware.info/?probe=d240fba8b7#Logs> is automatically 
pruned to exclude such lines. Hopefully not excessively pruned.

TSLOG is one of three things in a Git stash that I apply before most 
builds, <https://reviews.freebsd.org/P601>.