Date: Thu, 23 Jun 2005 06:53:37 -0700 From: "David O'Brien" <obrien@freebsd.org> To: Peter Wemm <peter@wemm.org> Cc: freebsd-arch@freebsd.org Subject: Re: Kernel Dump Message-ID: <20050623135337.GA44255@dragon.NUXI.org> In-Reply-To: <200506222323.26666.peter@wemm.org> References: <1e89cd51050616062241e9e201@mail.gmail.com> <200506222323.26666.peter@wemm.org>
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On Wed, Jun 22, 2005 at 11:23:25PM -0700, Peter Wemm wrote: > IA64 and Sparc systems usually had sparse memory configurations and the > old raw format didn't have any facility to avoid storing holes. .. > I've just rewritten the AMD64 crashdump support to use ELF like ia64. > In fact, I reused most of the ia64 code. We ran into serious problems > at work, first on the amd64 platform and now also the i386 platform. > The problem is that x86 machines are increasinly having memory holes. > The simplistic dump code has no way to skip the memory hole and tries > to dump things like the AGP frame buffer, pci card MMIO space, > PCI-Express configuration space (this means accessing hardware!!) and > so on. Hi Peter, This is great news! I'm really happy to see this work. Will we be able to switch to this for 6.0R? -- -- David (obrien@FreeBSD.org)
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