i386/119984: 7.0 - Kernel trap - AHA-2944 - witness warn on boot

[Michael Jung]

>Number:         119984
>Category:       i386
>Synopsis:       7.0 - Kernel trap - AHA-2944 - witness warn on boot
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jan 25 18:50:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Michael Jung
>Release:        7.0-PRERELEASE
>Organization:
Payment Alliance International
>Environment:
FreeBSD charon.confluentasp.com 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #13: Mon Jan 21 14:35:30 EST 2008     mikej at charon.confluentasp.com:/usr/obj/usr/src/sys/CHARON  i386

>Description:
When drives are attached to Adaptec AHA-2944 controller kenel traps on boot.


>How-To-Repeat:
Install AHA-2944 and attach drives, boot kernel
>Fix:
Scott long provided patch which works great but needs to be committed.

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

--- cam_xpt.c   20 Oct 2007 23:23:12 -0000      1.191
+++ cam_xpt.c   16 Dec 2007 07:46:22 -0000
@@ -3862,6 +3862,7 @@
                                                    &work_ccb->ccb_h,
                                                    xpt_links.stqe);

+                               mtx_unlock(&xsoftc.xpt_lock);
                                 continue;
                         } else {
                                 /*
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


RE: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=88110+0+archive/2007/freebsd-current/20071223.freebsd-current

>Release-Note:
>Audit-Trail:
>Unformatted: