Messages in this thread | | | Date | Tue, 05 Jun 2012 14:55:59 +0400 | From | Konstantin Khlebnikov <> | Subject | Re: commit 0fc9d10 : chroot under kernel 3.4.x core dumps |
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Toralf Förster wrote: > > When I try under kernel versions 3.4.[01] to chroot into a user mode > linux image, I often get this : > > + mount -o loop /home/tfoerste/virtual/uml/gentoo_unstable /mnt/loop > + mount -t proc none /mnt/loop/proc > + mount -o bind /dev /mnt/loop/dev > + mount -o bind /dev/pts /mnt/loop/dev/pts > + mount -o bind /usr/portage /mnt/loop/usr/portage > + mount -o bind /usr/local/portage /mnt/loop/usr/local/portage > + mount -o bind /tmp/uml_portage /mnt/loop/var/tmp/portage > + chroot /mnt/loop /bin/bash > /home/tfoerste/workspace/bin/chr_uml.sh: line 55: 4143 Segmentation > fault (core dumped) chroot /mnt/loop /bin/bash > > > The core file itself is only 400 KB in size and the back trace with gbd > is meaningless : > > Core was generated by `/bin/bash'. > Program terminated with signal 11, Segmentation fault. > #0 0xb75cac00 in ?? () > (gdb) bt > #0 0xb75cac00 in ?? () > #1 0xb76f4ff4 in ?? () > Cannot access memory at address 0xffffffdc > > In the rare cases, where the chroot doesn't crash, all subsequent > commands cores instead. Furthermore it seems, that the boinc grid > software has problems too under kernel 3.4.1. > All kernel 3.3.x works fine. > > I bisected it to : > > commit 0fc9d1040313047edf6a39fd4d7c7defdca97c62 > Author: Konstantin Khlebnikov<khlebnikov@openvz.org> > Date: Wed Mar 28 14:42:54 2012 -0700 > > radix-tree: use iterators in find_get_pages* functions > >
I have two reports about this, and NFS is mentioned in both. Did you use it? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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