Messages in this thread | | | Date | Tue, 19 Nov 2013 08:03:39 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86/ACPI: Make Sony Vaio Z1 series to use "reboot=pci" default |
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* Adam Williamson <awilliam@redhat.com> wrote:
> On Fri, 2013-11-01 at 15:02 +0100, Joerg Roedel wrote: > > On Sun, Oct 27, 2013 at 12:06:29AM -0700, Adam Williamson wrote: > > > On Sat, 2013-10-26 at 11:15 +0200, Ingo Molnar wrote: > > > > CONFIG_IRQ_REMAP=y > > > > > > Agh, sorry - I had this down in my mind as a boot time > > > parameter, not a compile time option. I'm off on vacation for a > > > week in the morning, and it's too late to wait around for a > > > kernel compile tonight :/ So I'll have to check this one when I > > > get back. Sorry again. > > > > Note, instead of recompiling the kernel, you can also pass > > 'intremap=off' on the kernel cmdline to disable interrupt > > remapping and test with that. > > Sorry for the delay, folks - just got back to this. Booting with > 'intremap=off' results in a slow reboot, i.e., doesn't fix the bug. > Is that a sufficient test, Ingo, or do you still want me to build > with CONFIG_IRQ_REMAP=n and try that?
That should be a sufficient boot I suspect.
Can you disable virtualization in the BIOS - does that affect reboot speed?
I'm just shooting into the dark here - if you can make your system boot bzImages then you might as well be better off trying to bisect it.
On Fedora booting bzImages of vanilla kernels is reasonably straightforward: a 'make localconfig' done while you are booted into a Fedora kernel ought to pick up everything into your .config and you won't need any modules to be able to boot up to userspace. That should ease bisection.
Thanks,
Ingo
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