[[email protected]: RE: FW: OOM Killer problem since linux 2.6.8.1]

FYI.

Success report on Andrea's OOM killer fixes!

----- Forwarded message from barry <[email protected]> -----

From: barry <[email protected]>
Date: Mon, 7 Feb 2005 14:29:56 -0500
To: 'Marcelo Tosatti' <[email protected]>
Cc: [email protected]
Subject: RE: FW: OOM Killer problem since linux 2.6.8.1

Hi Marcelo,

It has been a long time since we last communicated. We worked on my problem of spurious OOM when there was plenty of swap space available last September/October.

I am just writing to tell you that the patch set below (in the 2.6.11-rc3 kernel) seems to have fixed the OOM problem that has been plaguing me since 2.6.8.1..... (IE, I have been manually inserting a fix for every kernel since then...)

Please thank Andrea for me.....

[PATCH] mm: fix several oom killer bugs

Fix several oom killer bugs, most important avoid spurious oom kills badness algorithm tweaked by Thomas Gleixner to deal with fork bombs

This is the core of the oom-killer fixes I developed partly taking the idea from Thomas's patches of getting feedback from the exit path, plus I moved the oom killer into page_alloc.c as it should to be able to check the watermarks before killing more stuff. This also tweaks the badness to take thread bombs more into account (that change to badness is from Thomas, from my part I'd rather rewrite badness from scratch instead, but that's an orthgonal issue ;). With this applied the oom killer is very sane, no more 5 sec waits and suprious oom kills.

Barry Silverman   Phone: 416-368-7677 x234
Disus Inc.        Cell:  416-407-8091

110 Spadina #705 Email: [email protected]
Toronto, Ontario M5V 2K4
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