NetBSD Problem Report #40472
From bernd@arresum.veego.de Sun Jan 25 09:35:51 2009
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Date: Sun, 25 Jan 2009 10:35:40 +0100 (CET)
From: Bernd Ernesti <pr200904@veego.de>
Reply-To: Bernd Ernesti <pr200904@veego.de>
To: gnats-bugs@gnats.NetBSD.org
Subject: umounting an async fs fails
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>Number: 40472
>Category: kern
>Synopsis: umounting an async fs fails
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: kern-bug-people
>State: closed
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Jan 25 09:40:00 +0000 2009
>Closed-Date: Fri Sep 30 08:39:09 +0000 2016
>Last-Modified: Fri Sep 30 08:39:09 +0000 2016
>Originator: Bernd Ernesti
>Release: NetBSD 5.99.7 22-01-2009
>Organization:
>Environment:
System: NetBSD 5.99.7
Architecture: i386
Machine: i386
>Description:
I have a async mounted filesystem which can't be unmounted, even
if it has no files on it, just after a newfs -O 2
That fs is mounted on top of a wapbl fs.
>How-To-Repeat:
Use the following /etc/fstab entries and boot with it:
/dev/raid0h /source ffs rw,log 1 3
/dev/wd2e /source/work ffs rw,async 1 3
The root fs is also a wapbl fs.
Execute:
umount /source/work
and notice that it doesn't return.
USER PID %CPU %MEM VSZ RSS TTY STAT STARTED TIME COMMAND UID PID PPID CPU PRI NI VSZ RSS WCHAN STAT TTY TIME COMMAND
root 560 99.0 0.0 748 736 ttyp0 O+ 10:01AM 19:05.90 umount 0 560 492 36864 76 0 748 736 - O+ ttyp0 19:05.90 umount
mount shows that the filesystem is gone, but a reboot still prints that
it tries to unmount this filesystem and hangs there.
>Fix:
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback
State-Changed-By: pooka@NetBSD.org
State-Changed-When: Tue, 29 Jun 2010 20:56:58 +0300
State-Changed-Why:
I can't repeat this. Does it still happen? If so, please try
to be a little more specific as to what exactly triggers it (async, log,
raid, disk size, what?)
State-Changed-From-To: feedback->closed
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Fri, 30 Sep 2016 08:39:09 +0000
State-Changed-Why:
six-year feedback timeout.
(yes, really)
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.39 2013/11/01 18:47:49 spz Exp $
$NetBSD: gnats_config.sh,v 1.8 2006/05/07 09:23:38 tsutsui Exp $
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