Messages in this thread | | | Date | Fri, 12 Nov 2010 22:11:05 +0100 | Subject | Oprofile bug ? | From | "Sylvain GENEVES" <> |
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Hello,
I'm encountering unexpected behaviour with OProfile when the profiled system is under heavy load : "BUG: unable to handle kernel paging request at 0000000000004cc3" (full console message is attached).
I'm using a linux kernel 2.6.32 and both OProfile 0.9.6 from Debian repositories and OProfile 0.9.7 from CVS on Intel Xeon E5440 harpertown.
It happens when I profile a webserver under heavy load, with some cores disabled, and with the following event : --event=CPU_CLK_UNHALTED:1600000000000
I also use the --separate=all --callgraph=3 and my kernel has debug symbols and frame pointers enabled.
Anyone has any idea on what is happening ? Thanks, Regards, Sylvain[unhandled content-type:application/octet-stream] | |