On Wednesday, 26 September 2007 21:49, Rafael J. Wysocki wrote:
> On Wednesday, 26 September 2007 20:51, Thomas Gleixner wrote:
> > On Wed, 2007-09-26 at 17:25 +0200, Rafael J. Wysocki wrote:
> > > There still are some oddities.
> > >
> > > First, with the "x86-64: Disable local APIC timer use on AMD systems with C1E"
> > > patch and my collection of suspend patches applied, the box doesn't boot
> > > (the suspend patches don't even thouch the boot code, so they should be
> > > irrelevant here). However, it boots if patch-2.6.23-rc7-hrt1.patch (adjusted
> > > for 2.6.23-rc8) is applied in addition. Is this expected?
> >
> > No. That's odd. It is nothing else than adding "noapictimer" to the
> > kernel command line.
>
> Seems to be reproducible, though. I'll investigate further.
So far, the results are the following:
1) current Linus' tree doesn't boot with any command line (regression)
[ Linus, please revert commit e66485d747505e9d960b864fc6c37f8b2afafaf0
x86-64: Disable local APIC timer use on AMD systems with C1E
It's not necessary for 2.6.23 and actually kills the box that it's supposed to fix. ]
2) 2.6.23-rc8 w/ the "x86-64: Disable local APIC timer use on AMD systems with C1E"
patch applied behaves like the current -git
3) 2.6.23-rc8 w/o this patch doesn't boot with either "noapictimer" _or_
"apicmaintimer"
4) 2.6.22 behaves like 2.6.23-rc8
5) 2.6.23-rc8 with (adjusted) patch-2.6.23-rc7-hrt1.patch boots only with
"noapictimer"
6) 2.6.23-rc8 with (adjusted) patch-2.6.23-rc7-hrt1.patch and with the
"x86-64: Disable local APIC timer use on AMD systems with C1E" patch boots
without any extra command line options
Tested for a couple of times with each kernel, the results seem to be
reproducible 100% of the time.
Greetings,
Rafael
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