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Kernel Panic with Server Dual Quad Xeon E54xx [message #35328]

Wed, 18 March 2009 01:41

nt1303
Messages: 11
Registered: April 2006

Junior Member

Hello,

My Servers I regularly receive kernel panic during use of the OpenVZ kernel.

I use the kernel of Centos will not be problems.

Who can help me?

OpenVZ Kernel:
ovzkernel-2.6.18-92.1.18.el5.028stab060.2.x86_64.rpm
2.6.24
2.6.27

Mainboard Intel ServerBoard S5000VSA

Thank You,
Ngoc Thang

[Updated on: Wed, 18 March 2009 01:45]

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Re: Kernel Panic with Server Dual Quad Xeon E54xx [message #35329 is a reply to message #35328]

Wed, 18 March 2009 08:42

maratrus
Messages: 1495
Registered: August 2007
Location: Moscow

Senior Member

Hello,

the first step is to determine what kind of panic did you have.
To achieve this goal we need log files from your node.
/var/log/messages is great but klogd doesn't guarantee that the whole information was written.
So, the best way is setting up serial console
http://wiki.openvz.org/Remote_console_setup

The worst case is taking a picture if another kernel panic occurs.

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Re: Kernel Panic with Server Dual Quad Xeon E54xx [message #35360 is a reply to message #35329]

Thu, 19 March 2009 01:40

nt1303
Messages: 11
Registered: April 2006

Junior Member

Here is message log of my server. can you help me?

Attachment: mlog.txt
(Size: 353.21KB, Downloaded 733 times)

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Re: Kernel Panic with Server Dual Quad Xeon E54xx [message #35368 is a reply to message #35360]

Thu, 19 March 2009 14:04

maratrus
Messages: 1495
Registered: August 2007
Location: Moscow

Senior Member

Hello,

unfortunately provided file mlog.txt doesn't contain
information about kernel panic or oops.
So, serial console (or netconsole) is needed.
The only thing I was able to note is:
"Orphaned socket dropped (171,342 in CT0)"

Please, read
http://forum.openvz.org/index.php?t=msg&goto=25080&& amp;srch=Orphaned+socket#msg_25080
http://forum.openvz.org/index.php?t=msg&goto=3895&&a mp;srch=Orphaned+socket#msg_3895

perhaps you'd better increase numtcpsock.barrier and net.ipv4.tcp_max_orphans on HN

"possible SYN flooding on port 80. Sending cookies."
This message may signal about DoS attack.

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