I have poked at this a bit. On my system, running this:
#!/bin/bash
while [ 1 ]; do
touch foo
test=`ls -lh foo | grep -v c.hetherington`
if [ $test == ]; then
echo OOPS
echo $test
fi
sleep 1s
rm foo
done
prints OOPS exactly 10 minutes after the first resolution of my
The attached patch is a hack (to Ubuntu's 3.13.0 as shipped with 14.04)
which seems to help here. I am no kernel developer, but maybe it will
help to describe the problem and suggest a proper solution.
** Patch added:
0001-Invalidate-expired-keys-when-they-are-requested-in-o.patch
Actually, I think this patch is a bit less invasive. I'll submit to the
mainline kernel list and pick up my fire extinguisher ;)
** Patch added: nfs_patch2.patch
https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1124250/+attachment/4220337/+files/nfs_patch2.patch
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Hi Bryan, I'm glad it's working, thanks for the report. No response on
LKML yet; here's the message:
https://lkml.org/lkml/2014/9/30/435
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Hi Michael,
Thanks... installing keyutils seems to work for me too (without the
kernel patch). I haven't investigated too closely, but it looks like
the two fixes are sort-of equivalent. The userspace fix is far more
appealing, though!
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Bryan: AFAICS the thing is that keyutils changes things so that the
id_resolv uid:user@fqdn keys never expire. Without it, they expire
after 10 minutes, and that triggers the bug which my kernel patch
fixes.
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I think this patch:
http://article.gmane.org/gmane.linux.nfs/67156
is another fix for this bug. I'm sure it is more elegant than mine. @Bryan:
perhaps you could test it?
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The fixes for the problem I was seeing related to this bug are in Linux
3.18:
https://lkml.org/lkml/2014/12/7/202
(by David Howells).
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I see the same thing with Optiplex 9020 and BIOS A10. For reference,
git commit 01414f897d20874f6f5d7ef2f756f5bf2df526fc introduced the
problem.
commit 01414f897d20874f6f5d7ef2f756f5bf2df526fc
Author: Denis Turischev denis.turisc...@compulab.co.il
Date: Tue May 20 14:00:42 2014 +0300
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