Comment 5 for bug 1091986

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Mikko Rantalainen (mira) wrote :

Additional info: once the system is running, I can remove the "exit 1" from /etc/init.d/ulatencyd and then start ulatencyd process so this seems to be some kind of race condition in the kernel. Some crashes have kernel watchdog messages saying "Watchdog detected hard LOCKUP on cpu 1" (sometimes the LOCKUP was on cpu 0).

Is it possible that the ulatencyd gets started before the system is running on both cores (this system has dual core processor) and kernel crashes with some feature that ulatencyd uses if all CPUs are not yet up? Perhaps this really is a kernel bug that is triggered by ulatencyd?