__alloc_pages: 0-order allocation failed.

[Nathan Poznick <poznick@conwaycorp.net>]

Hello,

Yesterday, I installed the 1.0.1 patch against 2.4.5 on a machine at
work.  The machine's a 2-cpu, 4gb ram machine (highmem 4gb enabled).
I've got 4 disks on a dual-channel megaraid controller, doing hardware
raid0 across all 4.  I created a single, 273gb partition, and did an
mkfs.xfs on it.  I then tried to create a 20gb file with:

dd if=/dev/zero of=/u01/bigassfile bs=4096 count=5242880

This gave me messages like:

Aug  9 14:59:10 dpdred2 kernel: __alloc_pages: 0-order allocation failed. 
Aug  9 14:59:14 dpdred2 last message repeated 113 times
Aug  9 15:01:51 dpdred2 last message repeated 90 times
Aug  9 15:01:51 dpdred2 kernel: ed. 
Aug  9 15:01:51 dpdred2 kernel: __alloc_pages: 0-order allocation failed. 
Aug  9 15:02:32 dpdred2 last message repeated 364 times
Aug  9 15:02:54 dpdred2 last message repeated 3 times
Aug  9 15:02:54 dpdred2 last message repeated 11 times
Aug  9 15:05:47 dpdred2 kernel: ed. 
Aug  9 15:05:47 dpdred2 kernel: __alloc_pages: 0-order allocation failed.

The file was created successfully though...but the messages do tend to
put me on edge a bit.  Copying a 64gb file from an NFS share to the
filesystem doesn't show any problems.  I got the feeling from a
message in the archives that this might be a problem with the mainline
kernel's highmem code... would that be a reasonable assumption, or is
this an XFS issue?  If it's related to the highmem issues, then I'd
need to upgrade to 2.4.7...are there release 1.0.1 patches against
2.4.7, or will I have to upgrade to the latest development snapshot?
If I have to upgrade to the latest development snapshot, is it stable
enough to use?

Thanks,
Nathan Poznick

-- 
Nathan <poznick@conwaycorp.net>
PGP Key: http://drunkmonkey.org/pgpkey.txt

"Looks like that jelly donut got away from him." 
-Crow. #202