From: Oleg Drokin <green@namesys.com>
To: Zygo Blaxell <eazgwmir@umail.furryterror.org>
Cc: reiserfs-list@namesys.com
Subject: Re: link/unlink problem gone?
Date: Fri, 7 Feb 2003 09:19:33 +0300 [thread overview]
Message-ID: <20030207091933.A6256@namesys.com> (raw)
In-Reply-To: <b1unpa$bmb$1@satsuki.furryterror.org>
Hello!
On Thu, Feb 06, 2003 at 05:32:10PM -0500, Zygo Blaxell wrote:
> > Sigh, these were false hopes indeed.
> > I can reproduce it with 2.4.21-pre4, only it is now harder for some reason.
> I've seen times-to-failure ranging from 20 minutes to 20+ hours (!).
Same here.
> > Chris: My current idea is it happens during low memory conditions, so I am
> > actively running around prune_icache and id's dcache equivalent. Probably
> > you can easily reproduce that if you'd have no swap and not very much RAM.
> >
> > (Ok, I just checked, limited the RAM to 90M and turned off SWAP entirely.
> > and reproduced the problem fairly quickly)
> I have observed the problem on machines ranging in size from 96 to
> 512MB RAM. I haven't observed a correlation between swapping activity
> and failures but I haven't been looking for this either. The machines
I noticed that with newer 2.4.21-pre kernels first I see processes die because
of OOM and only after that I see direntries pointing to nowhere.
I reproduced this much more than once, so I believe there is some correlation
between these.
> that have problems machines are swapping at some time or another (they
> have several hundred MB of swap used).
And they are just swapping all the time, so it may take a while before
useful code runs and problem happens, it seems.
So far I decided that with SWAP turned off one can reproduce problem more
easily that with SWAP on (especially if swap is large).
Bye,
Oleg
next prev parent reply other threads:[~2003-02-07 6:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030129164906.A8320@namesys.com>
[not found] ` <20030131105745.A7426@namesys.com>
2003-02-06 22:32 ` link/unlink problem gone? Zygo Blaxell
2003-02-07 6:19 ` Oleg Drokin [this message]
2003-02-09 5:16 ` Zygo Blaxell
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