Juergen Keil wrote:
2009/5/28 Mark Johnson <[email protected]>:
Juergen Keil wrote:
Hi,
Can anyone provide some info on the root cause for bug 6830386 ?
"System panics when delete logical partition during dd on it in PV host"
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6830386
Does it have the same root cause as the one for opensolaris defect 9198;
a read past EOF for an xdf devices leaves the "vdp->xdf_dev_lk" mutex
locked?
http://defect.opensolaris.org/bz/show_bug.cgi?id=9198#c1
Yes, the suggested fix from bug 6830386 is..
static int
xdf_strategy(struct buf *bp)
{
...
...
if (bp->b_blkno > p_blkct) {
DPRINTF(IO_DBG, ("x...@%s: block %lld exceeds VBD size
%"PRIu64,
vdp->xdf_addr, (longlong_t)bp->b_blkno,
(uint64_t)p_blkct));
+ mutex_exit(&vdp->xdf_dev_lk);
xdf_io_err(bp, EINVAL, 0);
return (0);
}
What about the next "if (bp->b_blkno == p_blkct) ..." ?
The mutex_exit should be added in two places...
Yes you are right.. I've updated the bug and contacted the bug
owner. Thanks!
MRJ
_______________________________________________
xen-discuss mailing list
[email protected]
