[Bug 27492] BUG: unable to handle kernel NULL pointer dereference, on high filesystem io

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https://bugzilla.kernel.org/show_bug.cgi?id=27492





--- Comment #8 from Dave Chinner <david@xxxxxxxxxxxxx>  2011-02-03 22:44:49 ---
The trace in comment #6 is _not a crash_. It's a filesystem shutdown because a
transaction failed. That's what is supposed to happen, and it tells you this:

Filesystem "dm-7": Corruption of in-memory data detected.  Shutting down
filesystem: dm-7
Please umount the filesystem, and rectify the problem(s)

As to gdb failing to work, try just running "gdb vmlinux" and running
'l *(xfs_da_do_buf+0x4c8)' at the command prompt once it has started.....

Cheers,

Dave.

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