From: "Sven Köhler" <skoehler@upb.de>
To: linux-kernel@vger.kernel.org
Subject: Re: [BUG] null-pointer deref (perhaps reiserfs3)
Date: Mon, 06 Dec 2004 17:35:11 +0100 [thread overview]
Message-ID: <cp21l0$mve$1@sea.gmane.org> (raw)
In-Reply-To: <cp02a6$57j$1@sea.gmane.org>
> on a machine that i can only reach via SSH at the moment, i got a
> null-pointer dereference (see below). The machine runs kernel 2.6.9
> without any additional patches.
>
> It happened, while i was doing a "make install". A command within the
> "installkernel"-script segfaulted. It seems that only the filesystem
> mounted to /boot is affected. Any access to that FS blocks.
Here's how to reproduce it:
dd if=/dev/zero of=image bs=1M count=40
mkreiserfs -f image
mount -o loop image /mnt/test
cp -r /etc/ /mnt/test
The kernel will Oops, and cp will segfault.
After that, umount -r /mnt/test will fail or block.
The computer will not reboot or halt.
next prev parent reply other threads:[~2004-12-06 16:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-05 22:31 [BUG] null-pointer deref (perhaps reiserfs3) Sven Köhler
2004-12-06 16:35 ` Sven Köhler [this message]
2004-12-06 16:44 ` Sven Köhler
2004-12-06 21:27 ` Andrew Morton
2004-12-06 21:34 ` Chris Mason
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