Date: Tue, 25 Sep 2001 09:54:43 -0700 From: Lars Eggert <larse@ISI.EDU> To: Matthew Emmerton <matt@gsicomp.on.ca> Cc: Brian Reichert <reichert@numachi.com>, freebsd-hackers@FreeBSD.ORG Subject: NFS append race (was Re: got bad cookie vp 0xe2e5ef80 bp 0xcf317328) Message-ID: <3BB0B6D3.4050809@isi.edu> References: <Pine.BSF.4.21.0109250954120.84398-100000@xena.gsicomp.on.ca>
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[Should have included this in my earlier mail, sorry.]
In addition to bad cookies, I also see the following messages very
frequently:
NFS append race @0:954
They're issued in nfs/nfs_bio.c:
/*
* If dirtyend exceeds file size, chop it down. This should
* not normally occur but there is an append race where it
* might occur XXX, so we log it.
*
* If the chopping creates a reverse-indexed or degenerate
* situation with dirtyoff/end, we 0 both of them.
*/
if (bp->b_dirtyend > bcount) {
printf("NFS append race @%lx:%d\n",
(long)bp->b_blkno * DEV_BSIZE,
bp->b_dirtyend - bcount);
bp->b_dirtyend = bcount;
}
Any idea what these are about?
Lars
--
Lars Eggert <larse@isi.edu> Information Sciences Institute
http://www.isi.edu/larse/ University of Southern California
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