[Bug 226510] panic: Re-refing for reason 5, cnt = 1
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Date: Thu, 10 Feb 2022 19:43:51 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226510
--- Comment #23 from commit-hook@FreeBSD.org ---
A commit in branch stable/13 references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=583480174ee7f4af92f0c5302884a7eece5b12f3
commit 583480174ee7f4af92f0c5302884a7eece5b12f3
Author: Robert Wing <rew@FreeBSD.org>
AuthorDate: 2022-01-04 01:21:58 +0000
Commit: Robert Wing <rew@FreeBSD.org>
CommitDate: 2022-02-10 19:43:18 +0000
cam: don't lock while handling an AC_UNIT_ATTENTION
Don't take the device_mtx lock in daasync() when handling an
AC_UNIT_ATTENTION. Instead, assert the lock is held before modifying the
periph's softc flags.
The device_mtx lock is taken in xptdevicetraverse() before daasync()
is eventually called in xpt_async_bcast().
PR: 240917, 226510, 226578
Reviewed by: imp
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D27735
(cherry picked from commit bb8441184bab60cd8a07c2b94bd6c4ae8b56ec25)
sys/cam/scsi/scsi_da.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
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