[Bug 260591] kern/subr_bus.c: device_probe_and_{attach|detach}: Insufficient multi-thread protection causes crash
Date: Tue, 21 Dec 2021 22:11:28 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260591
Kubilay Kocak <koobs@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |crash, needs-qa
See Also| |https://reviews.freebsd.org
| |/D31833,
| |https://reviews.freebsd.org
| |/D19375
Flags| |maintainer-feedback?(imp@Fr
| |eeBSD.org),
| |maintainer-feedback?(mw@Fre
| |eBSD.org), mfc-stable13?,
| |mfc-stable12?
CC| |imp@FreeBSD.org,
| |mw@FreeBSD.org
Version|CURRENT |13.0-RELEASE
Summary|[attach/detach] [panic] |kern/subr_bus.c:
|insufficient multi-thread |device_probe_and_{attach|de
|protection for |tach}: Insufficient
|probe/attach/detach |multi-thread protection
| |causes crash
Status|New |Open
--- Comment #1 from Kubilay Kocak <koobs@FreeBSD.org> ---
Some recent work [1] with Giant replacement in subr_bus and portentially
relatged work with respect to [2], which mentions "patch works around the real
issue, which is a locking deficiency of the busses.
Request feedback from those committers accordingly.
[1] https://reviews.freebsd.org/D31833
[2] https://reviews.freebsd.org/D19375
^Triage: Set version to earliest supported and confirmed reproduction.
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