[issue1729] Hammer REDO recovery panic

Matthew Dillon dillon at apollo.backplane.com
Thu May 13 15:50:39 PDT 2010


:Have you had a chance to look at this redo_panic log?
:
:I'd like to repurpose the disk holding this fs soon, but if you'd like or think 
:there's a chance to recover the fs, I'll keep it around.
:
:In the future, for fses with a REDO fifo problem, would it make sense to offer a 
:'really read-only' mount that doesn't attempt to replay the redo fifo? That way, 
:we'd at least stand a chance at salvaging data... 
:
:Thanks,
:-- vs

    The lock panic was due to a mismatched lock/unlock which should have
    been fixed.

    An UNDO recovery error is fatal, but a REDO recovery error is not
    fatal.  It does mean the REDO failed but the filesystem itself will
    wind up in a working state.

						-Matt






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