Re: ffs_alloc panic patch

From: Colin Percival (colin.percival_at_wadham.ox.ac.uk)
Date: 08/27/04

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    Date: Fri, 27 Aug 2004 12:55:39 -0700
To: Ken Smith <kensmith@cse.Buffalo.EDU>

    At 12:36 27/08/2004, Ken Smith wrote:
    > ... Here you again wind up in a
    > situation where the filesystem data structures on the disk can
    > become corrupted. Typically at some point the ffs code will
    > recognize that the metadata is incorrect and again a panic is
    > better than trying to carry on pretending nothing is wrong.

    Shouldn't a corrupt filesystem be handled by forcibly dismounting it,
    rather than invoking panic()? We certainly don't want to keep on using
    a corrupt filesystem, but we should attempt to isolate a single failing
    piece of hardware rather than allowing it to bring down the entire
    system.

    Colin Percival

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