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SubjectRe: reiserfs bug
From
Date
Hello

On Thu, 2004-07-01 at 10:09, Hongwei Li wrote:
> Hi:
> My machine am running linux-2.4.25, it crash in the
> reiser_panic.
> I looked at the oops and find out the followings:
> check_leaf_block_head pass the 0 as "sb" value, and
> cause reiser_panic crash.
> Any fix for this?
>

Reiserfs found metadata corruption. It is supposed to not crash but
return i/o error,

but you should reiserfsck your filesystem.

We have to improve reiserfs data corruption handling.

> static void check_leaf_block_head (struct buffer_head
> * bh)
> {
> struct block_head * blkh;
> int nr;
>
> blkh = B_BLK_HEAD (bh);
> nr = blkh_nr_item(blkh);
> if ( nr > (bh->b_size - BLKH_SIZE) / IH_SIZE)
> reiserfs_panic (0, "vs-6010:
> check_leaf_block_head: invalid item number %z", bh);
> if ( blkh_free_space(blkh) >
> bh->b_size - BLKH_SIZE - IH_SIZE * nr )
> reiserfs_panic (0, "vs-6020:
> check_leaf_block_head: invalid free space %z", bh);
>
> }
>
> void reiserfs_panic (struct super_block * sb, const
> char * fmt, ...)
> {
> show_reiserfs_locks() ;
> do_reiserfs_warning(fmt);
> printk ( KERN_EMERG "%s (device %s)\n", error_buf,
> bdevname(sb->s_dev));
> BUG ();
>
> /* this is not actually called, but makes
> reiserfs_panic() "noreturn" */
> panic ("REISERFS: panic (device %s): %s\n",
> sb ? kdevname(sb->s_dev) : "sb == 0", error_buf);
> }
>
> Li Hongwei
>
>
>
>
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