Messages in this thread | | | Date | Wed, 04 May 2011 21:40:11 +0200 | From | Christian Hoffmann <> | Subject | Re: Long timeout when booting >= 2.6.38 |
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> > 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 ?
Yes, that seems to work:
root@c3po:~# echo acpi_pm > /sys/devices/system/clocksource/clocksource0/current_clocksource root@c3po:~# dmesg | grep clocksource [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-2.6.39-rc5-ch+ root=/dev/mapper/vg-root ro quiet splash vt.handoff=7 clocksource=acpi_pm [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.39-rc5-ch+ root=/dev/mapper/vg-root ro quiet splash vt.handoff=7 clocksource=acpi_pm [ 1.463754] Switching to clocksource tsc [ 1.470700] Override clocksource acpi_pm is not HRT compatible. Cannot switch while in HRT/NOHZ mode [ 125.808622] Switching to clocksource acpi_pm
> > 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 ?
The dmesg output with lpj is here (and it still hangs):
http://pastebin.com/raw.php?i=wZWrbc7Z
Kind regards,
Chris
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