Re: [Ntop-misc] PF_RING crashed the CentOS5 - BUG: soft lockup - CPU#7

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on 7-29-2008 9:48 AM Ian jonhson spake the following:
On Tue, Jul 29, 2008 at 3:25 PM, Luca Deri <deri-Q5Vr9lIqpUA@xxxxxxxxxxxxxxxx> wrote:
Ian
from the trace below I don't see an error related to PF_RING but a
soft-lockup (see below).

I have tested PF_RING on 2.6.24 and .26 and have not experienced the problem
you reported.

hmm...  I have restarted the operating system with CentOS's original kernel and
done again my experiments. I found that bug has not occurred again.

I don't know why. Maybe, the traditional libpcap has no provided
enough capability
like PF_RING. Or, perhapse something wrong is indeed in patched kernel or Dell
hardware drivers.

BTW, could you tell me what OS distribution you used in your testing PF_RING,
RedHat AS4 or Others? And what kernel source codes are downloaded, from
vendor's websites or www.kernel.org?

I very thank you if you can recommend what OS distribution and what
kernel version
are put together can achieve the maximal stability.

Thank anybody!


Ian
If you need a newer kernel to use that patch, I would recommend something that runs more cutting edge for that server, maybe Gentoo or Fedora 9. I don't recommend patching CentOS with a new kernel as you lose the main benefit for using an Enterprise distro .. stability. I love CentOS, but no one distribution can be everything for everyone. That is why there are so many choices.

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