Re: [patch] properly stop devices before poweroff

From: Zwane Mwaikambo <zwane_at_arm.linux.org.uk>
Date: 2005-04-29 23:36:25
On Fri, 29 Apr 2005, Andrew Morton wrote:

> Pavel Machek <pavel@ucw.cz> wrote:
> >
> > 
> > Without this patch, Linux provokes emergency disk shutdowns and
> > similar nastiness. It was in SuSE kernels for some time, IIRC.
> > 
> 
> With this patch when running `halt -p' my ia64 Tiger (using
> tiger_defconfig) gets a stream of badnesses in iosapic_unregister_intr()
> and then hangs up.
> 
> Unfortunately it all seems to happen after the serial port has been
> disabled because nothing comes out.  I set the console to a squitty font
> and took a piccy.  See
> http://www.zip.com.au/~akpm/linux/patches/stuff/dsc02505.jpg
> 
> I guess it's an ia64 problem.  I'll leave the patch in -mm for now.

Could you cat /proc/interrupts during runtime? It looks like the device 
being suspended never went through pci_device_enable() (e.g. ethernet 
interface wasn't up). It's harmless right now.

Thanks,
	Zwane

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Received on Fri Apr 29 09:34:05 2005

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