On Sat, 11 Aug 2007 15:39:30 +0300 (EEST) "Ilpo Järvinen" <ilpo.jarvinen@xxxxxxxxxxx> wrote: > I noticed that v2.6.23-rc1 locks up during boot, same thing happens now > with the latest linus' tree (+net-2.6.24 and tcp-2.6 tree stuff on top > of it; in -rc1 test they weren't though). The exact location of hang > varies a bit though. No OOPS, does not respond to sysrq or anything else > besides reset. Last known bootable one is something like 2.6.22-rc4 > (I usually run 2.6.21.5 on this machine, haven't tried any 2.6.22 on > this after those rcs). Problem seems to start after this line: > > Time: acpi_pm clocksource has been installed. > > ...the power led starts blinking (not periodic cycle but more or less > varying on-off cycle, never seen that led blink before at all, didn't know > that one can make it blink :-)) and the machine gets consideably slower > too. Never have it been able to complete booting all they way up to login > prompt before lock up. > > Tried with acpi=off, boots just fine (dmesg comes from it). I can take A hang a short-but-variable period after a clocksource was installed: probably means that the kernel wedged on the first clock interrupt. I'd expect 2.6.22 to work OK. It's a little unexpected that the bug was added after 2.6.22: a number of these reports have narrowed down to the patchset which added dynticks and clockevents, but that was already in 2.6.22. It'd be great if you could run a git bisection search please. - 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