Date: Tue, 11 May 2004 09:48:30 -0300 (BRT) From: Carlos A M dos Santos <casantos@urisan.tche.br> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/66523: atacontrol allows to detach a channel in which there aremounted filesystems Message-ID: <20040511094727.K1134@avatar.casantos.org> Resent-Message-ID: <200405111240.i4BCeP54045548@freefall.freebsd.org>
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>Number: 66523 >Category: bin >Synopsis: atacontrol allows to detach a channel in which there are mounted filesystems >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Tue May 11 05:40:25 PDT 2004 >Closed-Date: >Last-Modified: >Originator: Carlos A M dos Santos >Release: FreeBSD 5.2.1-RELEASE i386 >Organization: Universidade Regional Integrada >Environment: System: FreeBSD avatar.casantos.org 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #3: Fri Apr 23 18:43:32 GMT 2004 root@avatar.casantos.org:/share/FreeBSD/5.2.1-RELEASE/src/sys/i386/compile/OptiPlex_GX1 i386 >Description: If one issues an "atacontrol detach chanel" command, the chanel will be detached even if there is a filesystem mounted on an attached device. Trying to unmount the filesystem hangs the system. It happened to me when I issued the atacontrol and umount commands in the wrong order. >How-To-Repeat: Supposing one has a hard drive at ad2 (master at chanel 1) with a valid disklabel... # mount /dev/ad2s1a /mnt # atacontrol detach 1 # umount /mnt >Fix: Either atacontrol or the kernel should refuse to detach a busy channel. >Release-Note: >Audit-Trail: >Unformatted:
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