Re: 2.6.20-rc5: cp 18gb 18gb.2 = OOM killer, reproducible just like2.16.19.2

[Justin Piszcz]

On Thu, 25 Jan 2007, Mark Hahn wrote:

> > 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-raid" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 

# sysctl -a | grep vm.over
vm.overcommit_ratio = 50
vm.overcommit_memory = 0

I'll have to experiment with these options, thanks for the info!

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