Am Wed, 27 Sep 2006 14:24:47 +0200 schrieb Rolf Eike Beer: > I get this on my machine. SMP kernel, linus git from this morning. .config > and test available on request. I encountered a similar bug, but a lot earlier. It seems to be a locking problem, as it is lockdep which does the BUG() for me. It's also an SMP machine in my case, acpi_os_wait_semaphore() is in the call chain, too. No textual output (no serial connection attached, too early for netconsole), but a screenshot: http://automagically.de/images/linux-2.6.18+-acpi-lockup.jpg (154kB) 2.6.18 works for me, newer git versions explode. Maybe it's an SMP-related problem, but it does BUG() before initialization of the second CPU. Markus - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html