Messages in this thread | | | From | Rene Mayrhofer <> | Subject | BUG: unable to handle kernel NULL pointer dereference with unionfs and kernel 2.6.21.5 | Date | Fri, 6 Jul 2007 10:47:03 +0100 |
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Hi lists(s),
[Please CC me in replies to LKML, I am not subscribed to this list.] [Sorry for the cross-post, but I'm not sure that this is only a unionfs issue, so any hints are appreciated.]
I have a problem with unionfs 2.6.21.5-u3 more or less crashing my system upon the first write attempt (to a tmpfs file system mounted over a read-only tree from a squashfs image that is mounted loopback as the root filesystem). Attached is the "dmesg" output from bootup to the BUG (which happens immediately). After that, only a hard reboot will make anything happen anymore...
The kernel is based on a vanilla 2.6.21.5 from k.o with patches in the following order: - pax-linux-2.6.21.5-test9.patch - squashfs 3.2-r2: linux-2.6.20/squashfs3.2-patch - linux-2.6.21-imq2.diff - linux-2.6.21.5-u3.diff.gz (unionfs) - netfilter-layer7-v2.9.tar.gz - routes-2.6.21-15.diff and a very few select pom-ng patches.
I don't think that the IMQ, routes, layer7, or pom-ng patches can have anything to do with it, and the squashfs patch has been working for ages on different kernel versions. So my only suspicion so far is a conflict between the PAX patch and unionfs. Btw, the same combination of patches worked nicely when based on 2.6.20.x with the respective older patch versions.
I'd be happy about any hints on solving this.
Thanks, Rene [unhandled content-type:application/x-gzip] | |