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    Subject[PATCH][STABLE 2.6.18] dm snapshot: fix freeing pending exception
    Fix oops when removing full snapshot
    kernel bugzilla bug 7040

    If a snapshot became invalid (full) while there is outstanding
    pending_exception, pending_complete() forgets to remove
    the corresponding exception from its exception table before freeing it.

    Already fixed in 2.6.19.

    Signed-off-by: Milan Broz <mbroz@redhat.com>

    Index: linux-2.6.18.5/drivers/md/dm-snap.c
    ===================================================================
    --- linux-2.6.18.5.orig/drivers/md/dm-snap.c 2006-12-02 01:13:05.000000000 +0100
    +++ linux-2.6.18.5/drivers/md/dm-snap.c 2006-12-04 17:55:28.000000000 +0100
    @@ -691,6 +691,7 @@ static void pending_complete(struct pend

    free_exception(e);

    + remove_exception(&pe->e);
    error_snapshot_bios(pe);
    goto out;
    }

    -
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