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afs: Add a little more info on SLVC loop panic

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If we panic due to a perceived infinite loop, log a little more info
about our loop iterations.

Reviewed-on: http://gerrit.openafs.org/8850
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
(cherry picked from commit 2f087dc434f62cfa7888434427eaac6803b563ab)

Change-Id: Ie4a02a40fafa88f8b54b05b8a0926f258ae7cf7a
Reviewed-on: http://gerrit.openafs.org/9509
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
This commit is contained in:
Andrew Deason 2012-12-28 16:49:20 -05:00 committed by Stephan Wiesand
parent 96389a9996
commit c40eb13d01
1 changed files with 2 additions and 0 deletions
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src/afs/afs_vcache.c
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@ -675,6 +675,8 @@ afs_ShakeLooseVCaches(afs_int32 anumber)
if (tvc->f.states & CVFlushed) {
refpanic("CVFlushed on VLRU");
} else if (i++ > limit) {
afs_warn("afs_ShakeLooseVCaches: i %d limit %d afs_vcount %d afs_maxvcount %d\n",
(int)i, limit, (int)afs_vcount, (int)afs_maxvcount);
refpanic("Found too many AFS vnodes on VLRU (VLRU cycle?)");
} else if (QNext(uq) != tq) {
refpanic("VLRU inconsistent");