Messages in this thread | | | Date | Mon, 25 Apr 2005 16:14:13 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [PATCH] PCI: Add pci shutdown ability |
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On Mon, 25 Apr 2005, Alexander Nyberg wrote:
> Not sure what you mean by "make kexec work nicer" but if it is because > some devices don't work after a kexec I have some objections.
That was indeed the reason, at least in my case. The newly-rebooted kernel doesn't work too well when there are active devices, with no driver loaded, doing DMA and issuing IRQs because they were never shut down.
> What about the kexec-on-panic? > > In the end at least every storage device should work after a > kexec-on-panic or else there might be cases where we cannot get dumps of > what happened. My guess is that having access to the network might come > in handy after a kexec-on-panic as well. > > So if this patch is because some devices don't work across kexec I don't > think this is a good idea because the same devices won't work after a > kexec-on-panic.
Do I understand your argument correctly? You seem to be saying that because this new facility sometimes won't work (the kexec-on-panic case) it shouldn't be added at all. What about all the other times when it will work?
Alan Stern
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