Public bug reported:

I have lots of page allocation failures in my Ubuntu 12.04 on Toshiba
AC100.

Perhaps, we should change the default for/proc/sys/vm/min_free_kbytes
-- as suggested in https://bugs.launchpad.net/ubuntu/+source/linux-
ac100/+bug/1035208/comments/16 by marvin24 .

What it is now set to:

~ $ sudo cat /proc/sys/vm/min_free_kbytes
2698

How many failures I get:

~ $ sudo cat /var/log/kern.log | fgrep failure | wc --lines
99

I'm afraid it is bad for the system's stability.

I'll try to put

vm.min_free_kbytes = 4096

into /etc/sysctl.d/99-min-free-mem , and see whether they disappear.

Of course, this might not be very good from the other side: this
computer has little RAM:

~ $ free -m
             total       used       free     shared    buffers     cached
Mem:           435        303        132          0          0         15
-/+ buffers/cache:        287        148
Swap:          976        304        672
~ $ 

, and this setting might cause it to swap in more cases, and cause more
resource consumption (CPU and I/O)...

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-ac100 3.0.27.1.1
Uname: Linux 3.0.27-1-ac100 armv7l
ApportVersion: 2.0.1-0ubuntu11
Architecture: armhf
Date: Sun Aug 19 15:24:49 2012
SourcePackage: linux-meta-ac100
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-meta-ac100 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: 12.04 ac100 apport-bug armhf memory precise ram swap toshiba-ac100

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https://bugs.launchpad.net/bugs/1038570

Title:
  lots of "page allocation failure"

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