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Message-Id: <200607110128.k6B1Sq0a043306@www.freebsd.org>
Date: Tue, 11 Jul 2006 01:28:52 GMT
From: Beyond Luo <fedora@ercist.iscas.ac.cn>
To: freebsd-gnats-submit@FreeBSD.org
Subject: [patch] mutex lock errors in drivers
X-Send-Pr-Version: www-2.3

>Number:         100045
>Category:       kern
>Synopsis:       [patch] mutex lock errors in drivers
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 11 01:30:11 GMT 2006
>Closed-Date:    Tue Jul 11 02:35:55 GMT 2006
>Last-Modified:  Tue Jul 11 02:35:55 GMT 2006
>Originator:     Beyond Luo
>Release:        6.0
>Organization:
Institute of Software, Chinese Academy of Science
>Environment:
FreeBSD Earth.Earth 6.0-RELEASE FreeBSD 6.0-RELEASE #2: Tue Feb 28 02:32:45 UTC 2006     root@guhao.fsd.iscas:/usr/obj/usr/src/sys/CAS-EARTH  i386
(We are doing some work on FreeBSD6.0)
>Description:
The following three files do not do mtx_unlock before return:
  /usr/src/sys/cam/scsi/scsi_cd.c (#line 594)
  /usr/src/sys/cam/scsi/scsi_da.c (#line 1004)
  /usr/src/sys/dev/aac/aac_cam.c (#line 417)

>How-To-Repeat:

>Fix:
  following mtx_unlock should be added respectively:
  mtx_unlock(&Giant);
  mtx_unlock(&Giant);
  mtx_unlock(&sc->aac_io_lock);
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Tue Jul 11 02:35:39 UTC 2006 
State-Changed-Why:  
See kern/100046. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=100045 
>Unformatted:
