Messages in this thread | | | From | "Abu M. Muttalib" <> | Subject | Re: __alloc_pages: 0-order allocation failed (Jes Sorensen) | Date | Fri, 2 Jun 2006 17:44:38 +0530 |
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Hi,
I have somewhat related problem as mentioned in my previous mail.
I was running one application on a linux-2.4.19-rmk7-pxa1 box with 16 MB RAM and 16 MB flash. It was all working fine.
I am now trying to run the same application on a linux-2.6.13 box and intermittently I get OOM-KILLER and killing of a required process. What has changed between these two kernel version?
Please help.
Thanks and regards, Abu.
Date: 01 Jun 2006 08:19:32 -0400 From: Jes Sorensen <jes@sgi.com> Subject: Re: __alloc_pages: 0-order allocation failed To: Oliver K?nig <k.oliver@t-online.de> Cc: linux-kernel@vger.kernel.org Message-ID: <yq0d5dtt6ej.fsf@jaguar.mkp.net> Content-Type: text/plain; charset=latin-iso8859-15
>>>>> "Oliver" == Oliver K?nig <k.oliver@t-online.de> writes:
Oliver> I run Debian 3.1 (Sarge) with Debian-Kernel 2.4.27-3-686-smp Oliver> on Dell Poweredge 2850 with the following setup/config:
Oliver> Model: Dell Poweredge 2850 CPU: 2x3.0 GHz RAM: 2 GB SWAP: 1 GB Oliver> Raid 1 with Dell PowerEdge Expandable RAID controller 4 (SCSI) Oliver> Kernel: 2.4.27-3-686-smp (CONFIG_HIGHMEM4G=y) Web server: Oliver> apache2 SQL server: mysql4.1 MTA: exim4
[snip]
Oliver> The server is then so slow tom react that the only way to get Oliver> rid of the problem is to reset the server.
Oliver> What can we do to fix the problem?
0-order allocations means it cannot get even a single page of free memory. You also see in the log the the OOM is kicking in. In other words, totally out of memory.
You have two options, add more swap or add more memory. At the same time it might be a good idea to try and monitor it to find out which tasks are chewing away that much memory.
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