Subject : 2.6.25-rc1 on Sun Ultra 40 Submitter : Jasper Bryant-Greene <jasper@unix.geek.nz> Date : 2008-02-13 12:25 References : http://lkml.org/lkml/2008/2/13/181 This entry is being used for tracking a regression from 2.6.24. Please don't close it until the problem is fixed in the mainline or the report is rejected.
Handled-By : Yinghai Lu <Yinghai.Lu@sun.com>
On Thu, 2008-02-14 at 00:25 +1300, Jasper Bryant-Greene wrote: > I have been attempting to test 2.6.25-rc1 on my Sun Ultra 40 (two > dual-core Opteron 2222 CPUs). > > There is some issue with the HPET clocksource which causes it to hang > the boot process if enabled, which I will look into in due course (the > HPET works fine on at least 2.6.19). > > More pressing is that the system will not boot at all even with HPET > disabled - kernel gets no further than "NET: Registered protocol family > 2". > > I cannot think of a way to find out what the problem is, because the > system has only USB ports, and the USB keyboard is not working at this > stage, either because the system has locked up hard, or because the USB > support has not yet loaded (I tried both standard USB-HID and boot > protocol keyboard support, both compiled in). Thus I cannot use > magic-sysrq, or even scrollback to look at boot messages. There is also > no serial port to assist with the latter... I can confirm neither the boot hang with HPET enabled nor the other unexplained boot hang after "NET: Registered protocol family 2" occur on 2.6.24.2 on the same hardware. I still don't have an appropriate way to debug the issue on 2.6.25-rc1, though...
boot log and config please
References : http://lkml.org/lkml/2008/4/6/72 Jasper Bryant-Greene said: No longer reproducible on 2.6.25-rc8.