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DateSun, 30 Jul 2006 10:07:51 +0159
FromJiri Slaby <>
SubjectRe: swsusp regression (s2dsk) [Was: 2.6.18-rc2-mm1]
Rafael J. Wysocki napsal(a):
> On Sunday 30 July 2006 02:06, Pavel Machek wrote:>> Hi!>>>>>>>>> I have problems with swsusp again. While suspending, the very last thing kernel
>>>>>>> writes is 'restoring higmem' and then hangs, hardly. No sysrq response at all.
>>>>>>> Here is a snapshot of the screen:>>>>>>> http://www.fi.muni.cz/~xslaby/sklad/swsusp_higmem.gif>>>>>>>>>>>>>> It's SMP system (HT), higmem enabled (1 gig of ram).>>>>>> Most probably it hangs in device_power_up(), so the problem seems to be
>>>>>> with one of the devices that are resumed with IRQs off.
>>>>>>>>>>>> Does vanila .18-rc2 work?>>>>> Yup, it does.>>>> Can you try up kernel, no highmem? (mem=512M)?>>> It writes then:>>> p16v: status 0xffffffff, mask 0x00001000, pvoice f7c04a20, use 0
>>> in endless loop when resuming -- after reading from swap.>> Okay, so we have two different problems here.>>>> One is "hang during suspend" with smp/highmem mode,> > That one is "interesting".  I've no idea why the restoration of highmem would
> have caused the box to hang like that.  Jiri, could you please post the output
> of dmesg after a fresh boot?

higmem is ok. ioapic0 is the culprit -- its class resume dies:
        if (cls->resume)
                cls->resume(dev); <----
in __sysdev_resume
>> and one is probably driver problem with p16v (whatever it is).
>>>> /data/l/linux/sound/pci/emu10k1/irq.c:>> snd_printk(KERN_ERR "p16v: status: 0x%08x, mask=0x%08x, pvoice=%p,
>> use=%d\n", status2, mask, pvoice, pvoice->use);
>>>> ...aha, so you may want to unload emu10k1 for testing.

Sure, this helped.

>> Since you mention radeon in one of your other mails, just try it in
>> vesafb mode...> > Yes.  Or just don't compile the radeon driver and see what happens.

Doesn't matter. I do not use graphics (fb) in console -- radeon was not inited
at all, it was bad tip.

regards,
-- 
<a href="http://www.fi.muni.cz/~xslaby/">Jiri Slaby</a>
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
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