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Re: VM problem: hdd thrash + hang
- To: Alon Altman <alon(at-nospam)vipe.technion.ac.il>
- Subject: Re: VM problem: hdd thrash + hang
- From: mulix <mulix(at-nospam)actcom.co.il>
- Date: Fri, 6 Jul 2001 14:20:32 +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.LNX.4.33.0107060802260.1232-100000@alon1.dhs.org>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
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.
* upgrade to the latest kernel (2.4.6) and hope the VM heuristics are
better, so it only kills the offending process.
* add more swap (no need to make a swap partition, you can use a swap
file).
something else?
On Fri, 6 Jul 2001, Alon Altman wrote:
> Hi,
> Once in a while, typically in high-load situations, my linux PC gets into
> a state where it constantly thrashes the HD (probably swapping) and no user
> application runs properly. All local interaction hangs. ping from remote
> works just fine, but other TCP services accept the connection but do not
> send any text. The only thing left for me to do is to manually reset the PC.
>
> Also, I get the following lines in syslog (All addresses changed to prevent
> detection of the specific workstation involved):
>
> Jul 6 04:50:38 mypc proftpd[810]: mypc.mydomain - Error: unable to accept an incoming connection (Connection reset by peer)
> Jul 6 04:57:38 mypc kernel: VM: killing process master
> Jul 6 05:03:47 mypc proftpd[810]: mypc.mydomain - Error: unable to accept an incoming connection (Connection reset by peer)
> Jul 6 05:06:22 mypc kernel: VM: killing process hlds_run
> Jul 6 05:06:39 mypc proftpd[3693]: mypc.mydomain (remote.pc[1.2.3.4]) - FTP session closed.
> Jul 6 05:23:06 mypc kernel: VM: killing process kdeinit
> Jul 6 05:37:00 mypc kernel: VM: killing process vmware-nmbd
> Jul 6 05:41:02 mypc kernel: VM: killing process sshd
> Jul 6 05:56:12 mypc kernel: VM: killing process xfs
> ..
>
> What can be causeing these problems, and how can I prevent this.
--
mulix
http://www.advogato.com/person/mulix
linux/reboot.h: #define LINUX_REBOOT_MAGIC1 0xfee1dead
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