Re: [RFC/PATCH] Kdump: Disabling PCI interrupts in capture kernel

[Eric W. Biederman]

Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes:

> On Fri, 3 Jun 2005, Vivek Goyal wrote:
> 
> > In previous conversations, Alan Stern had raised the issue of console also
> > not working if interrupts are disabled on all the devices. I am not sure
> > but this should be working at least for serial consoles and vga text consoles.
> 
> > May be sufficient to capture the dump.
> 
> This isn't an issue for x86.  It affects other architectures, in which the 
> system console is managed during the early stages of booting by the 
> platform firmware.  I suppose serial consoles would always work.

In the plain kexec case that should be doable.  I don't think
I have heard of a kdump case where we can work with the platform
firmware.


Eric

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