From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [Bugme-new] [Bug 32312] New: Race condition in umount
Date: Thu, 31 Mar 2011 11:36:55 -0700
Message-ID: <20110331113655.faea3975.akpm@linux-foundation.org>
References: <bug-32312-10286@https.bugzilla.kernel.org/>
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On Thu, 31 Mar 2011 04:54:52 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=32312
> 
>            Summary: Race condition in umount
>            Product: File System
>            Version: 2.5
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: VFS
>         AssignedTo: fs_vfs@kernel-bugs.osdl.org
>         ReportedBy: fullung@gmail.com
>         Regression: No
> 
> 
> The Red Hat folks suggested reporting this bug here:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=683836
> 
> In summary, doing many umounts in parallel causes some umounts to fail and if
> the mount/parallel umount cycle is repeated a few times, bad stuff happens
> inside the kernel.
> 
> Reproduced with 2.6.38.*.
>