Re: 2.6.25-rc5: Reported regressions from 2.6.24

Jeff Garzik
2008-03-11T18:58:18Z

Linus Torvalds wrote:
> On Mon, 10 Mar 2008, Jeff Garzik wrote:
>>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10123
>>> Subject : No power-off / reboot with 2.6.25-rcX (up to -rc3)

>> FWIW, I have this same problem.

> Jeff, does that one ("keep rd->online and cpu_online_map in sync") fix the
> problem for you?

Nope. I am running baadac8b10c5ac15ce3d26b68fa266c8889b163f now, and it
still hangs on reboot or power-off.

Interestingly, if I reboot -immediately- from gdm, it succeeds. However
if I login to Fedora GNOME via gdm, and load my standard apps (1001
terminals, firefox, tbird, IRC) reboot and poweroff no longer work.

My guess was always some ACPI regression. I'll bisect today or
tomorrow. It is reproducible regression that appeared recently (circa
2.6.24 or 2.6.25-rc1 I think), so I should be able to find the culprit.

Jeff