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From: Jesper Krogh <jesper@krogh.cc>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Many open/close on same files yeilds "No such file or directory".
Date: Fri, 02 May 2008 17:19:49 +0200	[thread overview]
Message-ID: <481B3115.30705@krogh.cc> (raw)
In-Reply-To: <481ACEC4.2040205@krogh.cc>

Jesper Krogh wrote:
>> I'd suspect that after 1e8 loops your CPU got too hot and started to
>> misbehave.
> 
> Hardware is an Sun Fire X4600 (8xdual-core AMD64 processors). The
> problem seem to be tied to this filesystem. (I cannot havent been able
> to reproduce it on the /-mounted disk of the same system. So if a cpu
> problem.. then it shouldn't be tied to a specific filesystem?
> 
> This is the only activity on the system .. so a load of 1 / 16cpus.

I've tried to explore this suggestion (the best I could).

There are 2 ext3 filesystems locally mounted. / and this one. Running 16 
parallel runs of this program on a file on the /-mounted filesystem 
cannot reproduce the problem. If it was linked to hot hardware, I 
believe I should be able to reproduce it this way. The servers are in a 
17 degress serverroom.

It changes alot when.. it actually happens. The "earliest ones" has been 
from 200000 cycles.

Ive tried to upgrade.. so the system is now running a 2.6.24-16-server 
(Ubuntu/Hardy) kernel. But execpt from differnet output in uname, 
everything else seems to be the same.

All suggestions/ideas are welcome? The general feeling is that it wont 
change a thing to reformat the filesystem?

Jesper
-- 
Jesper

  parent reply	other threads:[~2008-05-02 15:20 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-01 15:34 Many open/close on same files yeilds "No such file or directory" Jesper Krogh
2008-05-02  5:39 ` Andrew Morton
2008-05-02  8:20   ` Jesper Krogh
2008-05-01 12:15     ` Arjan van de Ven
2008-05-02 11:03       ` Many open/close on same files yeilds Jesper Krogh
2008-05-01 14:07         ` Arjan van de Ven
2008-05-02 15:19     ` Jesper Krogh [this message]
2008-05-02 15:47       ` Many open/close on same files yeilds "No such file or directory" Ray Lee
2008-05-02 15:55         ` Jesper Krogh
2008-05-02 16:45           ` Ray Lee
2008-05-02 19:53             ` Jesper Krogh
2008-05-02 19:52         ` Jesper Krogh
2008-05-05 17:43           ` Jesper Krogh
2008-05-05 17:51             ` Randy.Dunlap
2008-05-05 17:54               ` Jesper Krogh
     [not found]                 ` <2c0942db0805051121r47cc97d2jb71cc8ab9eaa7981@mail.gmail.com>
2008-05-05 18:29                   ` Jesper Krogh
     [not found]                     ` <2c0942db0805051154q63a18bcfhce8a30d4a663ea3f@mail.gmail.com>
2008-05-07 20:51                       ` Jesper Krogh
2008-05-07 22:27                         ` Jesper Krogh
2008-05-02 15:21     ` Jesper Krogh
2008-05-09  5:22 ` Jesper Krogh
2008-05-09  5:36   ` Andrew Morton
2008-05-09  6:09     ` Jesper Krogh
2008-05-09  6:22       ` Andrew Morton
2008-05-12  1:53       ` Neil Brown
2008-05-12  1:53         ` Neil Brown
     [not found]         ` <18471.41781.164396.385159-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2008-05-12  6:00           ` J. Bruce Fields
2008-05-12  6:00             ` J. Bruce Fields
2008-05-12  6:41         ` Jesper Krogh
     [not found]           ` <4827E67E.3050008-Q2TZfHgGEy4@public.gmane.org>
2008-05-12  6:51             ` Andrew Morton
2008-05-12  6:51               ` Andrew Morton
     [not found] <aoJcW-38V-37@gated-at.bofh.it>
     [not found] ` <aoWjI-1Br-5@gated-at.bofh.it>
     [not found]   ` <aoYOH-6RO-13@gated-at.bofh.it>
     [not found]     ` <ap5nc-3ZT-7@gated-at.bofh.it>
     [not found]       ` <ap5Gx-4vu-43@gated-at.bofh.it>
     [not found]         ` <ap9Ar-4Nn-21@gated-at.bofh.it>
     [not found]           ` <aqcZe-7Fg-23@gated-at.bofh.it>
     [not found]             ` <aqd98-7Vb-25@gated-at.bofh.it>
     [not found]               ` <aqd99-7Vb-27@gated-at.bofh.it>
2008-05-05 19:05                 ` Henry Nestler

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