Comment 14 for bug 1043755

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Marco Scannadinari (zheoffec) wrote : Re: Plymouth screen hangs on shutdown

Darn! It happened to me again, this time with the logs, but I missed the crucial point where it said "BUG: Overflow ... ? ... Kernel ..."
Here is what I have written down:

WARNING
BUG: (Did not completely see this message, something about kernel overflow)

At /build/buildd/linux-3.2.0/kernel/watchdog.c:241 watchdog_overflow_callback+0x9a/0xc0 ()
Watchdog detected hard lockup on cpu 0

Do you know where these logs are saved?
At the moment it looks like some sort of kernel bug and some lockup on the CPU.

I had looked up the /build directory but it was nowhere to be found.
This seems to be the same problem as me, though slightly different http://lkml.indiana.edu/hypermail/linux/kernel/1107.1/02053.html, also this https://bugzilla.redhat.com/show_bug.cgi?id=822287.
This, I beleive is the code in the kernel which triggers this log output which may help you to understand the cause of the error http://lxr.free-electrons.com/source/kernel/watchdog.c#L214.