reiserfs bug

[Hongwei Li]

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?

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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