[Bug 109078] Warning PID: 1150 at drivers/gpu/drm/i915/intel_cdclk.c:835

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109078

Lakshmi <lakshminarayana.vudum at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEEDINFO

--- Comment #16 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to Valerio Vanni from comment #15)
> >Valerio, I couldn't find the motherboard you describe.  Do you mean the B360M-A?
> >
> >  https://www.newegg.com/Product/Product.aspx?Item=N82E16813119086
> 
> Yes, I typed it wrong.
> 
> 
> >Things that I would try:
> >
> > - eliminate hardware as a root cause
> >   - check for bios update
> 
> BIOS is 1602, updated at Novembre. Now I see that there's an updated
> version, I'll try immediately.
> 
> >   - verify that RAM passes memcheck
> 
> I'll try this too. After I built the machine, I did and it was ok.
> 
> >What is it about the error message that causes you to think this is a graphics >bug?  The stack trace makes me think there is something wrong with power >management.
> 
> I suspected it from the first line
> WARNING: CPU: 1 PID: 1150 at drivers/gpu/drm/i915/intel_cdclk.c:835
> skl_get_cdclk+0x211/0x250 [i915]
> 
> Where in stack trace do you find power management issue?
> I'm not very good at analyize stack trace, as I said i focused on the first
> lines.
> 
> 
> >The symptoms (won't wake up) seem to be similar too, although from >your >description, it doesn't sound like the machine is asleep.
> 
> But perhaps they are not related.
> 
> Sometimes (but even less frequently) the machine starts up (power led on)
> but with blank screen, no response to ping etc.
> I'm not able to say if it stops at BIOS or during linux boot because it
> usually happens when I'm on another machine with a kvm switch. I'm on
> another machine, I power on this, after some time I point the kvm switch on
> this machine and I find it dead.
> 
> I have to fix my serial port bracket, because it has a wrong pinout for
> thism MB. Perhaps with serial console I can see something on serial port, if
> Linux boot has at least started.
> 
> When I see this warning, instead, the machine is alive and (seems to be)
> working.

Any further updates here?

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