Messages in this thread | | | From | Claudio Martins <> | Subject | Re: Order 0 page allocation failure under heavy I/O load | Date | Mon, 27 Oct 2008 06:47:31 +0100 |
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On Sunday 26 October 2008, Dave Chinner wrote:
> The host will hang for tens of seconds at a time with both CPU cores > pegged at 100%, and eventually I get this in dmesg: > > [1304740.261506] linux: page allocation failure. order:0, mode:0x10000 > [1304740.261516] Pid: 10705, comm: linux Tainted: P 2.6.26-1-amd64
Hello,
Have you tried to increase vm.min_free_kbytes to something higher, that is >=30000?
I think I have hit something similar on a box running nbd-server to export a 3 SATA disk raid0 block device over Gigabit Ethernet. Increasing min_free_kbytes got rid of the messages for me... Though the load on your system is much higher than on mine.
Regards
Cláudio
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