Il 11/06/2011 09:32, Ritesh Raj Sarraf ha scritto:
What is the version of the kernel, where you are seeing this problem?
In my experience, older kernels, weren't good at handling huge
workloads. In case this is a starvation issue (which I suspect), there
should be some kernel messages spat. Can you check that?
Also, if possible, can you reproduce the issue with ietd's debug mode
enabled?
Sorry, tought I had indicated the kernel version: it is 2.6.32-5-amd64
Linux san00 2.6.32-5-amd64 #1 SMP Wed May 18 23:13:22 UTC 2011 x86_64
GNU/Linux
dpkg -l 'linux-image*'|grep ii
ii linux-image-2.6.32-5-amd64
2.6.32-34squeeze1 Linux 2.6.32 for 64-bit PCs
Debian package version 2.6.32-34squeeze1
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?
Thank you for the support
Massimiliano
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Massimiliano Ferrero
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