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Old 09-21-2009, 07:14 PM   #1
Uday123
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Unexpected reboot - RHEL 5.3


Hi,

One of my Linux server restarted unexpectedly and below are log messages from the /var/log/messages. My Server is running on RHEL 5.3 and it is a oracle application server. Restart happened at 13:34.Please review the below logs:

Sep 17 11:59:50 TESTSERVER1 kernel: frmweb[30676]: segfault at 000000006974655e rip 00000000f7cec2c1 rsp 00000000ffd0a9c8 error 4

Sep 17 12:00:49 TESTSERVER1 kernel: frmweb[30759]: segfault at 000000006974655e rip 00000000f7d352c1 rsp 00000000ffd53a18 error 4


Sep 17 12:33:08 TESTSERVER1 : error getting update info: Cannot retrieve repository metadata (repomd.xml) for repository: citrix. Please verify its path and try again


Sep 17 13:33:08 TESTSERVER1 : error getting update info: Cannot retrieve repository metadata (repomd.xml) for repository: citrix. Please verify its path and try again

Sep 17 13:34:58 TESTSERVER1 syslogd 1.4.1: restart.

Sep 17 13:34:58 TESTSERVER1 kernel: klogd 1.4.1, log source = /proc/kmsg started.

Sep 17 13:34:58 TESTSERVER1 kernel: Linux version 2.6.18-128.el5 (gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Wed Dec 17 11:41:38 EST 2008

Sep 17 13:34:58 TESTSERVER1 kernel: Command line: ro root=LABEL=/ rhgb quiet crashkernel=128M at 16M

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-provided physical RAM map:
Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 0000000000100000 - 00000000ef3f6800 (usable)

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 00000000ef3f6800 - 00000000efffb000 (reserved)

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 00000000efffc000 - 00000000f0000000 (reserved)

Sep 17 13:34:58 TESTSERVER1 kernel: BIOS-e820: 0000000100000000 - 000000018e200000 (usable)

Sep 17 13:34:58 TESTSERVER1 kernel: DMI 2.4 present.


Actually my Linux m/n is a VM (virtual m/n) running on XEN (similar to VMWare). we have many servers running like this. But unexpected restart happened on one m/n only.

What might be the reason for unexpected restart? Any clues?

Any help will be highly appreciated.
 
Old 10-02-2009, 06:22 PM   #2
carltm
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Registered: Jan 2007
Location: Canton, MI
Distribution: CentOS, SuSE, Red Hat, Debian, etc.
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Usually something like this is because of a problem on the motherboard,
such a cpu overheating, bad memory, etc. If this has only happened one
time, it's hard to say what caused it. If you can take the server down
for a day of testing, try running memtest86.
 
  


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