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Date: Mon, 22 Oct 2012 14:27:38 -0700 From: "H. Peter Anvin" <hpa@...or.com> To: Yinghai Lu <yinghai@...nel.org> CC: "H. Peter Anvin" <hpa@...ux.intel.com>, Jacob Shin <jacob.shin@....com>, Tom Rini <trini@...com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "stable@...nel.org" <stable@...nel.org> Subject: Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot On 10/22/2012 02:25 PM, Yinghai Lu wrote: > On Mon, Oct 22, 2012 at 1:52 PM, H. Peter Anvin <hpa@...ux.intel.com> wrote: >> On 10/22/2012 01:50 PM, Yinghai Lu wrote: >>> ok, let's see if we can meet this extreme corner case except user >>> specify not page aligned "memmap=" >> >> If it is *only* memmap= there is a very simple solution: if the memmap >> is RAM then we round up the starting address and round down the end >> address; if the memmap is not RAM then we round up instead... > > We never know that bios guys will not let bios produce crazy e820 map. > Yeah, well, that just *will* happen... that's a given. We can trim those ranges, though. Who cares if we lose some RAM. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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