lkml.org 
[lkml]   [2011]   [May]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Long timeout when booting >= 2.6.38
On Wed, 4 May 2011, Christian Hoffmann wrote:
> Hi,
>
> > Huch. There is something badly wrong. Can you provide the output of
> >
> > cat /sys/devices/system/clocksource/clocksource0/available_clocksource
> >
> > please ?
>
> $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource
> tsc hpet acpi_pm

Hmm. So I really wonder why it refuses to switch to acpi_pm when you
select it on the kernel command line.

Does "echo acpi_pm > /sys/devices/system/clocksource/clocksource0/current_clocksource"
work ?

> > > [ 147.940143] Refined TSC clocksource calibration: 2809.409 MHz.
> > > [ 147.940147] Switching to clocksource tsc
> >
> > I just looked at the two boot logs you provided. So the main
> > difference is that TSC gets installed way later.
> >
> > Can you please boot the "working" kernel with clocksource=hpet on the
> > commandline and verify whether the boot hang appears there as well?
> >
>
> No, it works fine. See http://pastebin.com/raw.php?i=4wJWkiNM.

Ok. That excludes HPET. So the only difference left is the late
registration of TSC which happens _AFTER_ the hang.

Can you boot the non working kernel with "lpj=28098860" on the kernel
command line ?

Thanks,

tglx


\
 
 \ /
  Last update: 2011-05-04 19:51    [W:0.083 / U:1.956 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site