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Linux Server - kernel: mtrr: type mismatch

Posted on 2007-10-03
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My Linux server has rebooted and hung on me today.

I've been reviewing the log tosee if there's anything that indicates what the cause may have been, and there's not a lot to go on. However, I have some of the following entries in my log and as I am no Linux expert I don't know exactly what they are telling me, or if I should be concerned about them.

Oct  3 23:29:18 <server_name> kernel: mtrr: type mismatch for fc000000,800000 old: uncachable new: write-combining

Is this indicative of a problem or is this just a normal entry to be expected in the log ?

TIA


Rob
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Question by:ccfcfc
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arrkerr1024 earned 2000 total points
ID: 20007825
I think that is normal on systems that support mtrr (memory type range registers), it is switching from uncachable to write-combining to speed things up.
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by:arrkerr1024
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I wouldn't think you should see that very often though - how often does it show up?
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by:ccfcfc
ID: 20012655
It's only there during boot. How about the following ?

Oct  3 18:00:02 <server_name> kernel: audit(1191398402.843:109): avc:  denied  { read write } for  pid=1939 comm="syslogd" name="messages_fifo" dev=dm-0 ino=1163297 scontext=user_u:system_r:syslogd_t tcontext=root:object_r:var_spool_t tclass=fifo_file

Oct  3 18:00:02 <server_name> kernel: audit(1191398402.843:110): avc:  denied  { ioctl } for  pid=1939 comm="syslogd" name="messages_fifo" dev=dm-0 ino=1163297 scontext=user_u:system_r:syslogd_t tcontext=root:object_r:var_spool_t tclass=fifo_file
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