Date: Wed, 30 Apr 1997 22:59:59 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: freebsd-current@FreeBSD.org (FreeBSD-current users) Subject: Crash in gbincore() Message-ID: <19970430225959.BT38160@uriah.heep.sax.de>
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After unloading my cd9660 LKM, when reloading it, my kernel crashed in
gbincore(). This was inside write(2) while ld(1) was linking the new
module. The crash was here:
/*
* Check to see if a block is currently memory resident.
*/
struct buf *
gbincore(struct vnode * vp, daddr_t blkno)
{
struct buf *bp;
struct bufhashhdr *bh;
bh = BUFHASH(vp, blkno);
bp = bh->lh_first;
/* Search hash chain */
while (bp != NULL) {
/* hit */
if (bp->b_vp == vp && bp->b_lblkno == blkno &&
^^^^^^^^
bp was (void *)0xffffffff. I wonder how this happened...
--
cheers, J"org
joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
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