Messages in this thread | | | From | "Jeremy Jackson" <> | Subject | Re: Faster reboots (and a better way of taking crashdumps?) | Date | Wed, 10 Apr 2002 20:47:17 -0700 |
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Should this go off lkml?
----- Original Message ----- From: "Suparna Bhattacharya" <suparna@in.ibm.com> Sent: Monday, April 08, 2002 12:20 AM > > I'm currently researching combining the two, to create a LinuxBIOS > > firmware debug console, which will allow complete crash dump to > > be taken after a hardware reset, with the smallest possible Heisenburg > > effect, aside from a hardware debugger. > > So how is the actual writeout accomplished ?(via LinuxBIOS ?)
well it's just an idea just now. In order to do this from code in rom, I immagine it would just dump physical memory to a raw partition, using polling ide drivers in LinuxBIOS. This is probably a step backwards, compared to modern crash dumps, but it would allow zero alteration of memory.
It may be possible to do with a standard flash size of 128KiB, though, which would allow virtually all motherboards to support it.
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