linux-ext4 - [Bug 25832] kernel crashes when a mounted ext3/4 file system is physically removed

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Message-Id: <201104221342.p3MDg605012869@demeter1.kernel.org>
Date:	Fri, 22 Apr 2011 13:42:06 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 25832] kernel crashes when a mounted ext3/4 file system is
 physically removed

https://bugzilla.kernel.org/show_bug.cgi?id=25832


rocko <rockorequin@...mail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|kernel crashes upon resume  |kernel crashes when a
                   |if usb devices are removed  |mounted ext3/4 file system
                   |when suspended              |is physically removed




--- Comment #63 from rocko <rockorequin@...mail.com>  2011-04-22 13:41:45 ---
2.6.39-rc4 is either _much_ harder to crash, or my script isn't as reliable at
crashing the kernel as I thought (until now I've mostly used the suspend/resume
method with multiple drives attached). I've now done over 200 bind/unbind
cycles of this external ext4 USB key without a crash. But I certainly did crash
it once earlier today.

An observation from earlier that might be relevant here: a couple of weeks ago
one of my drives got itself into a state that made it crash the kernel almost
every time I unplugged it, but after I did an fsck on it it became
significantly less likely to cause the crash. And after my last reboot there
was a lot of fsck'ing going on, probably including the external drive.

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