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Old 08-17-2011, 06:44 AM   #1
jonaskellens
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Kernel panic


Hello,

anyone knows what these messages could tell me about the problem on my server :
Code:
...
attempt to access beyond end of device
dm-0: rw=0, want=9179442040, limit=60555264
/sbin/init: error while loading shared libraries: /lib64/libsepol.so.1 : cannot read file data: Invalid argument
Kernel panic - not syncing: Attempt to kill init!
Server would no longer boot up.. and always showed this message.
 
Old 08-17-2011, 01:18 PM   #2
Peverel
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Presumably a corrupted disk address. The limit is a bit less than 3.5G, which may be the number of blocks on some disk, "want" is about 140G.
 
Old 08-18-2011, 05:28 AM   #3
jonaskellens
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Quote:
Originally Posted by Peverel View Post
Presumably a corrupted disk address. The limit is a bit less than 3.5G, which may be the number of blocks on some disk, "want" is about 140G.
I know it's a general question, but what could be causing this ? Is it CentOS ? Is it software on the server ? Is it much much traffic to the server (as in an attack) ?
 
Old 08-20-2011, 04:35 AM   #4
Peverel
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Well, it is during the initial boot, so not traffic on the server, probably a corrupted file. Init is trying to read a file from an invalid position. Not obvious where the error is: it may be in the shared library specified, in init itself, or in the file system. Can you boot with a rescue disk and run fsck on the file system?
 
Old 08-21-2011, 04:32 AM   #5
jonaskellens
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Quote:
Originally Posted by Peverel View Post
Well, it is during the initial boot, so not traffic on the server, probably a corrupted file. Init is trying to read a file from an invalid position. Not obvious where the error is: it may be in the shared library specified, in init itself, or in the file system. Can you boot with a rescue disk and run fsck on the file system?
This is a production server. There was no time to run fsck. We placed a snapshot taken earlier. So also all information in the logfiles is gone as we went back to a state were the problem did not yet occur.

The problem has not yet re-occured, but it would be very nice to know what caused the kernel panic and the corrupt file system. Sadly we do not have much information...
 
  


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