On Wed, Jan 11, 2017 at 01:51:56AM -0800, Paul E. McKenney wrote: > Yes, you could make RCU expedited grace periods go back to using the > requesting task, and that would allow expedited grace periods to run early > in the boot process. But that causes problems with signals and the like > unless you revert a few other patches. The bugzilla is interesting -- > it looks like ACPI was in some cases doing early-boot grace-period waits > some time back? I think this and https://bugzilla.suse.com/show_bug.cgi?id=1017783 is an example of a bunch of toshiba schlaptops which cause the issue. So it looks like ACPI is doing something very early on those which tickles the issue to happen. But this is ACPI - anything can happen! > I have a limping prototype RCU patch that should avoid this problem. > > If all goes well, I will send it out late tomorrow evening, Pacific Time. Attach it to the bugzilla too, pls, because the people there trigger the issue. I have the respective(?) SUSE bug and I can ask people there to run it too. Thanks. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply. -- 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
