At Fri, 8 Aug 2014 18:25:59 +0200,
Janek Kozicki wrote:
> 
> Full reply, along with CONFIG_PM_TRACE_RTC=y results is below.
(snip)
>
> Now I tried to identify the problem. There are two magic numbers
> recorded in realtime clock:
> 
> pci     0000:ff:0d.1: hash matches
> pci_bus 0000:ff: hash matches
> 
> The 0000:ff: is strange, like no particular piece of hardware driver is 
> wrong, but whole bus?
> 
> The 0000:ff:0d.1 from lspci is a following thing:
> 
> ff:0d.1 System peripheral [0880]: Intel Corporation Ivytown Unicast Registers 
> [8086:0ee3] (rev 04)
>         Subsystem: Super Micro Computer Inc Device [15d9:0628]
>         Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
> Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> 
> 
> So that's the best I could do so far. Currently I am waiting for more
> instructions from you on how to proceed.
> 
> PS: I am pretty sure that my hardware is not broken.

So, the PM hang problem still exists although the kernel WARNING is
gone after the patch, right?  Then the kernel WARNING was a red
herring.  It should be fixed, but it wasn't the real cause of the
hang.

I'll apply the patch to sound git tree in anyway, as it look like a
right fix for kernel WARNING.


Takashi
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