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SubjectRe: Possible dcache BUG
Date
On Sunday 15 August 2004 04:48, viro@parcelfarce.linux.theplanet.co.uk 
wrote:
>On Sun, Aug 15, 2004 at 12:09:44AM -0400, Gene Heskett wrote:
>> The only thing I've noted in the slabinfo reports is the
>> ext3_cache was well into 6 digits in kilobytes. Now its only
>> 15,000 of its normal units (whatever they are) after the reboot.
>
>What did dcache numbers look like at that time?
>
>Anyway, we could try the patch below and see what shows in
> /proc/fs/ext3 with it [NOTE: patch is completely untested]. It
> should show major:minor:inumber:mode
>for all currently allocated ext3 inodes. It won't be 100% accurate
> (we can miss some entries/get some twice if cache shrinks or grows
> at the time), but if the leak is so massive, we ought to see a
> *lot* of duplicates in there. Seeing what kind of inodes really
> leaks could narrow the things down.

Well, I am seing some dups, but they are so volatile that no two runs
will report the same allocations as dups, and its never more than 2
using /proc/fs/ext3 | sort | uniq -c | sort -nr |grep -v ' 1 '

Consecutive runs will show anywhere from 3 to 10 or 12 dups, but never
is an address repeated between runs.

How is this to be interpreted?

FWIW, I'm now up 25 hours, with PREEMPT off. No Oops's yet.

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
99.24% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com attorneys please note, additions to this message
by Gene Heskett are:
Copyright 2004 by Maurice Eugene Heskett, all rights reserved.
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