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RE: VM problem: hdd thrash + hang
- To: <haim(at-nospam)hageltech.com>, mulix <mulix(at-nospam)actcom.co.il>, Dani Arbel <darbel(at-nospam)techunix.technion.ac.il>
- Subject: RE: VM problem: hdd thrash + hang
- From: Alon Altman <alon(at-nospam)vipe.technion.ac.il>
- Date: Fri, 6 Jul 2001 18:34:47 +0300 (IDT)
- Cc: "'Linux-IL'" <linux-il(at-nospam)linux.org.il>
- Delivered-To: linux.org.il-linux-il@linux.org.il
- In-Reply-To: <Pine.GSO.4.33.0107061603230.9939-100000@techunix.technion.ac.il>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
On Fri, 6 Jul 2001, Haim Gelfenbeyn wrote:
> I don't think this is VM problem... Look more like misbehaved program
> running as root which allocates more and more memory .VM starts killing
> processes when some resource gets scarse (I don't remember if it's CPU
> time or virtual memory). Maybe you should look at sysstat, it will log
> CPU and memory useage, and you will find what process goes out of hand
> when it happens next time.
>
> Haim.
Where can I find this 'sysstat'?
On Fri, 6 Jul 2001, mulix wrote:
> your machine is running out of memory, and the VM is trying to kill the
> processes responsible for it (without much success, it appears). you can
> do one of several things:
>
> * check which process is behaving badly, and ulimit(1) it in advance.
How can I know which process it is? Can a non-root porcess be the cause of
this as well?
> * upgrade to the latest kernel (2.4.6) and hope the VM heuristics are
> better, so it only kills the offending process.
I'm currently using kernel 2.2.17, do you know that the VM heuristics are
in-fact improved?
> * add more swap (no need to make a swap partition, you can use a swap
> file).
I have 192M of RAM and 128M of sawp, is this enough?
On Fri, 6 Jul 2001, Dani Arbel wrote:
> Alon,
> If you are using a 2.4 kernel prior to 2.4.5 then you are a victim of its
> VM problem. Upgrade to 2.4.5 .
> Dani
Does this mean that 2.2 kernels don't have this problem?
Thanks all for your help,
Alon
--
This message was sent by Alon Altman (Psycho99@bigfoot.com) ICQ:1366540
The RIGHT way to contact me is by e-mail. I am otherwise nonexistent :)
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