Date: Tue, 11 Jul 2006 01:32:12 GMT From: Beyond Luo <fedora@ercist.iscas.ac.cn> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/100046: [patch] mutex lock errors in drivers Message-ID: <200607110132.k6B1WChj043808@www.freebsd.org> Resent-Message-ID: <200607110140.k6B1eFjw017648@freefall.freebsd.org>
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>Number: 100046 >Category: kern >Synopsis: [patch] mutex lock errors in drivers >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jul 11 01:40:14 GMT 2006 >Closed-Date: >Last-Modified: >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) (Detected by a bug-check tool we are developping.) >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: >Unformatted:
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