[Bug 291294] panic during shutdown in callout_process
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Date: Sat, 13 Jun 2026 20:48:12 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291294
Bjoern A. Zeeb <bz@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|New |Closed
Resolution|--- |Not A Bug
--- Comment #3 from Bjoern A. Zeeb <bz@FreeBSD.org> ---
Well it is a bug but nothing compiled as part of the system yet.
It's a LinuxKPI driver apparently not cancelling delayed work upon detach or
rather scheduling it again afterwards...
fault virtual address = 0xfffffe00a6297638
..
db> show dwork_log
# dwork wq (NULL == cancelled)
214 0xfffffe00a6297600 0xfffff80003271700 -- state 1 timer delay 8
callout 0xfffffe00a6297638 .. <<
213 0xfffffe00a6297600 0x0 -- state 0 idle delay 0
callout 0xfffffe00a6297638 .. <<
212 0xfffffe00a6297600 0xfffff80003271700 -- state 1 timer delay 8
callout 0xfffffe00a6297638 .. <<
211 0xfffffe00a6297600 0x0 -- state 0 idle delay 0
callout 0xfffffe00a6297638 .. <<
210 0xfffffe00a6297600 0xfffff80003271700 -- state 1 timer delay 8
callout 0xfffffe00a6297638 .. <<
209 0xfffffe00a6297600 0x0 -- state 0 idle delay 0
callout 0xfffffe00a6297638 .. <<
208 0xfffffe00a6290978 0x0 -- state 0 idle delay 0
callout 0xfffffe00a62909b0 ..
207 0xfffffe00a6290978 0xfffff80003271580 -- state 1 timer delay 25
callout 0xfffffe00a62909b0 .. <<
206 0xfffffe00a6297600 0xfffff80003271700 -- state 1 timer delay 8
callout 0xfffffe00a6297638 .. <<
205 0xfffffe00a6297600 0xfffff80003271700 -- state 1 timer delay 2
callout 0xfffffe00a6297638 .. <<
204 0xfffffe00a6297600 0xfffff80003271700 -- state 1 timer delay 8
callout 0xfffffe00a6297638 .. <<
I've by now looked up the work function as well so I know what to beat up...
Not sure yet if there is any sane cleanup going on and one just does not notice
as the other ones happen on a way lower frequency.
Anyway, it's nothing in main yet so I am closing this for good for now.
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