Simon Slater wrote:
On Mon, 2008-03-10 at 18:51 -0400, Chris Snook wrote:
I suggest setting vm.overcommit_memory=2 with sysctl to turn on
explicit
overcommit control, and then try changing the value of
vm.overcommit_ratio to see if that changes where your system dies.
I've never come across these variables/commands before, so I'll go
slowly here.
Also, is the system actually crashing, or does it just get swaplocked
and hang indefinitely when swap usage reaches 25%? See if you can
get
sysrq-m and sysrq-t data out of the system. You'll want to set
kernel.sysrq=1 first.
Where do I find these?
There are two interfaces. One is the /proc/sys directory, and the other
is sysctl. If you want to set something with sysctl, the easy way is to
add a line in sysctl.conf (for example: vm.overcommit_memory=2) and then
run sysctl -p to process the config file again.
-- Chris
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