[Bug 226578] panic: _mtx_lock_sleep: recursed on non-recursive mutex CAM device lock @ /usr/home/trasz/svn-ssh/head/sys/cam/scsi/scsi_da.c:2042
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Date: Tue, 04 Jan 2022 02:02:37 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226578
--- Comment #4 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=bb8441184bab60cd8a07c2b94bd6c4ae8b56ec25
commit bb8441184bab60cd8a07c2b94bd6c4ae8b56ec25
Author: Robert Wing <rew@FreeBSD.org>
AuthorDate: 2022-01-04 01:21:58 +0000
Commit: Robert Wing <rew@FreeBSD.org>
CommitDate: 2022-01-04 01:56:48 +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
sys/cam/scsi/scsi_da.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
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