Re: NFS client bug in 2.6.8-2.6.11

From: Bernardo Innocenti
Date: Tue Mar 15 2005 - 21:52:40 EST

Neil Conway wrote:

766 -> 770 sounds like a "small" (ish) number of patches to check, if
we're lucky. Did you wade through 'em all yet? Any smoking guns?

The RPM changelog doesn't contain anything relevant
between 766 and 770:

* Thu Feb 24 2005 Dave Jones <davej@xxxxxxxxxx>

- Use old scheme first when probing USB. (#145273)

* Wed Feb 23 2005 Dave Jones <davej@xxxxxxxxxx>

- Try as you may, there's no escape from crap SCSI hardware. (#149402)

* Mon Feb 21 2005 Dave Jones <davej@xxxxxxxxxx>

- Disable some experimental USB EHCI features.

* Tue Feb 15 2005 Dave Jones <davej@xxxxxxxxxx>

- Fix bio leak in md layer.

Perhaps the changelog is incomplete. I don't have the
two SRPMs at hand to make a comparison.

By the way, it seems upgrading to 2.6.10-1.770_FC3 just made
the bug much harder to trigger: I've definitely seen it once
again when I had left a shell sitting in an NFS directory
overnight. I couldn't reproduce it a second time.

PS: oh bugger, just remembered that I also reproduced my bug with a
2.6.8 kernel on the server; admittedly though it was an FC2 kernel so
who knows what extra patches it had.

You can easily find out by downloading the SRPM. Now that
Fedora provides a public CVS, perhaps it could be used to
make such investigations directly with the cvsweb interface
without downloading and unpacking a 40MB file.

// Bernardo Innocenti - Develer S.r.l., R&D dept.

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