Re: Kernel BUG when using corrupted ext3 fs

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On 6/11/07, Jan Kara <[email protected]> wrote:
  Hello,

> I had to hard shutdown a fc6 machine due to vmware and nvidia doing
> ridiculous things to my screen resolution and locking up.  ugh.
> Anyway, upon reboot it recovers the journal and mounts / rw fine.
> Then rc.sysinit tries to delete various things from /tmp (.ICE-unix,
> .font stuff, etc), kernel shows a BUG, and boot stops.  Booting from a
> fc7 live cd and trying to mount /dev/sda2 rw and delete /tmp/* also
> causes a BUG.  This dump is from fc7:
>
>
> eth0: no IPv6 routers present
> kjournald starting.  Commit interval 5 seconds
> EXT3 FS on sda2, internal journal
> EXT3-fs: mounted filesystem with ordered data mode.
> SELinux: initialized (dev sda2, type ext3), uses xattr
> inode_doinit_with_dentry:  getxattr returned 5 for dev=sda2 ino=13271075
> EXT3-fs warning (device sda2): ext3_unlink: Deleting nonexistent file
> (13271075), 0
  Obviously, ext3 was not consistent after replaying the journal which
should never happen. Do you have somewhere available the original
filesystem image or at least messages from fsck when fixing the
filesystem?

Unfortunately, no.  I did not think of logging the fsck output :(  I
recall hitting 'y' to fix about 30 things, with the last fixes being
something like superblocks not matching each other which I hadn't seen
before.  This machine had also been hard powered off at least 5 times
before in the last few months (due to nvidia lockups).

--
Karl Pickett
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