Date: Tue, 10 Jul 2007 21:07:19 -0400 (EDT) From: Michael W Lucas <mwlucas@blackhelicopters.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/114489: panic: _mtx_lock_sleep: in aic7xxx_osm.h (with backtrace) Message-ID: <200707110107.l6B17JXw019948@bewilderbeast.blackhelicopters.org> Resent-Message-ID: <200707110110.l6B1A5JF073463@freefall.freebsd.org>
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>Number: 114489 >Category: kern >Synopsis: panic: _mtx_lock_sleep: in aic7xxx_osm.h (with backtrace) >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jul 11 01:10:04 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Michael W Lucas >Release: FreeBSD 7.0-CURRENT i386 >Organization: none >Environment: System: FreeBSD pesty.blackhelicopters.org 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Wed May 23 13:29:50 EDT 2007 mwlucas@pesty.blackhelicopters.org:/usr/obj/usr/src/sys/GENERIC i386 This is a standard i386 system with an external SCSI array attached. Verbose dmesg is attached. >Description: This system performs fine on an April 22 2007 kernel. I updated to -current on July 4, 2007, and immediately started seeing these panics. Upon further testing I found that I could read data just fine from the SCSI drives, but that attempting to write to the drives resulted in this panic. The panic message and backtrace are attached. >How-To-Repeat: /dev/da7 is my test drive. I can run: # fdisk /dev/da7 and read the slice table as often as I wish without trouble. A simple write operation such as # fdisk -BI /dev/da7 panics the system. This does not happen every time, but if I run this command a few times in a row it regularly and reliably panics. My record is five successful "fdisk -BI /dev/da7" runs one after the other in quick succession before the sixth panics the system. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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