Messages in this thread | | | Date | Tue, 27 Apr 2004 22:42:39 -0700 | From | Andrew Morton <> | Subject | Re: allocation failures with CBQ bandwidth limiting & high net use (was Re: Filesystem kernel hangup, 2.6.3 (bad: scheduling while atomic!)) |
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Brad Allen <Ulmo-Usenet@Usenet.Q.Net> wrote: > > My MTU for GbE (e1000) is 9000, and NFS block size 8192 bytes. > That GbE is a consumer grade Intel model. > .... > swapper: page allocation failure. order:3, mode:0x20
The kernel simply doesn't have a hope of being able to find eight physically-contiguous free pages at interrupt time.
You'll get some benefit from increasing /proc/sys/vm/min_free_kbytes
But it's beginning to look like we need separately-managed higher-order page pools for this. At least.
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