Re: Safe-mode on amd64 broken

From: David Naylor <naylor.b.david_at_gmail.com>
Date: Wed, 29 Sep 2010 20:48:04 +0200
On Wednesday 29 September 2010 18:25:13 Alexander Motin wrote:
> David Naylor wrote:
> > On Wednesday 29 September 2010 16:19:08 Andriy Gapon wrote:
> >> What do you try to actually achieve?
> > 
> > I was trying to boot a system and it was panicking due to stray
> > interrupts. It turned out to be caused by HPET.  I found
> > `hint.hpet.0.clock=0' which fixed the problem.
> > 
> > This means HPET does not work on any of my machines.  The other one's
> > symptoms are hda losing interrupts after a period of up-time.
> 
> What chipset do you use? Nvidia MCP5x? Could you send me your verbose
> dmesg?

Yes, the one is a MCP51, the other is a ICH8M.  

The desktop is a Gigabyte N650SLI-DS4L.  Its symptom is hda losing interrupts 
after a period of time.  

The laptop is a Acer 2920.  Its symptom for a GENERIC is a panic saying stray 
interrupt (irq7), with a custom kernel booting stalls.  

The dmesg's are using a custom kernel with ``hint.hpet.0.clock=0'' set.  The 
Acer also has apic and atrtc timers disabled (as per the advice to get C3 
working).  

See attached are the dmesg's.  

Received on Wed Sep 29 2010 - 17:16:45 UTC

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