linux-kernel - Re: 2.6.20-rc5: cp 18gb 18gb.2 = OOM killer, reproducible just like 2.16.19.2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 25 Jan 2007 17:34:31 -0500 (EST)
From:	Mark Hahn <hahn@...aster.ca>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
cc:	Pavel Machek <pavel@....cz>, linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org, xfs@....sgi.com
Subject: Re: 2.6.20-rc5: cp 18gb 18gb.2 = OOM killer, reproducible just like
 2.16.19.2

> Something is seriously wrong with that OOM killer.

do you know you don't have to operate in OOM-slaughter mode?

"vm.overcommit_memory = 2" in your /etc/sysctl.conf puts you 
into a mode where the kernel tracks your "committed" memory 
needs, and will eventually cause some allocations to fail.
this is often much nicer than the default random OOM slaughter.
(you probably also need to adjust vm.overcommit_ratio with 
some knowlege of your MemTotal and SwapTotal.)

regards, mark hahn.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/