On 06/11/2011 01:37 PM, Massimiliano Ferrero wrote: > That should be the last kernel for a squeeze with security updates > > There are no other kernel messages in the problem timeframe, I have > already cut&paste all the relevant messages > I can try to reproduce the problem on a test machine and I will try that > with debug enabled also, I will do more tests on the production system > only if I am not able to reproduce the problem on the test system. > Another test I want to perform is enable deadline scheduler for the > logical volumes exported through iscsi, do you think this could > influence the problem?
It should be worth a try. Try deadline and see if that helps. Lately, CFQ had had a lot of improvements. But those might have not made into the squeeze kernel. BTW, does this issue happen only on heavy load? Or is it triggered also on moderate load? I'm sure the moment when this issue occurs, the machine is completely unresponsive. -- Ritesh Raj Sarraf | http://people.debian.org/~rrs Debian - The Universal Operating System
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