Re: PROBLEM: Kernel lockup on alpha with heavy IO

[Dru]

viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote:

> On Mon, Apr 26, 2004 at 02:37:24PM +1200, Dru wrote:
>  
>
> > I've recently installed debian on a alpha box and have a problem with  
> > the kernel locking up
> > after a couple of hours of heavy use.  An individual partition will stop 
> > responding, all processes
> > that try and access it will just sit there waiting and you have to 
> > reboot the server.
> > I've been using a mixture of IDE drives and they all do this. I thought 
> > it might be the motherboard
> > so i've installed a pci ide controller card, had same effect. I've tried 
> > accessing files over usb devices
> > as a finial ditch effort but it also does it there also so i am sure it 
> > is in the kernel and not
> > the hardware that is at fault.
> >    
>
> ... or you have problems with heat dissipation.  Get into SRM right after
> the deadlock and say show power - that should, IIRC, give you temperatures.
>  
Its a pretty heavy duty case with lots of cooling fans. Its very easy to
reproduce. Start up 10 cp commands on the same partition, run hdparm
-t -T /dev/sda and it will lockup within 10 seconds.  The machine is rock
solid under heavy cpu, with no io traffic. It never has kernel panic'ked
(as i would expect with temperature problems.)  If you perform more
than one write command to the same partition at the very same time,
no matter what the type drive/device it is, it locks up.

Does anyone else successfully run linux and debian testing on alpha's
with 2.6 kernels?

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