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Hello all, I won't be able to test anything before next Tuesday, but I'm with Jordan on this one. Have a look at the dmsg output I sent you some time ago (http://article.gmane.org/gmane.linux.kernel/584681). This was as plain from Linus' tree as you get it (git bisect, make defconfig, make) and I see: BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001e7b0000 (usable) BIOS-e820: 000000001e7b0000 - 000000001e7bffc0 (ACPI data) BIOS-e820: 000000001e7bffc0 - 000000001e7c0000 (ACPI NVS) BIOS-e820: 0000000040400000 - 0000000040440004 (reserved) BIOS-e820: 00000000f0000000 - 0000000100000000 (reserved) -- Kind regards Joerg ----- Ursprüngliche Mail ---- Von: Jordan Crouse <jordan.crouse@amd.com> An: H. Peter Anvin <hpa@zytor.com> CC: jkeating@redhat.com; Joerg Pommnitz <pommnitz@yahoo.com>; Chuck Ebbert <cebbert@redhat.com>; Linux Kernel Mailing List <linux-kernel@vger.kernel.org>; Andi Kleen <ak@suse.de> Gesendet: Freitag, den 28. September 2007, 01:15:52 Uhr Betreff: Re: More E820 brokenness On 27/09/07 15:47 -0700, H. Peter Anvin wrote: > Jordan Crouse wrote: > > > > Breaks on the Geode - original behavior. > > > > I think that having boot_prams.e820_entries != 0 makes the kernel > > assume the e820 data is correct. > > > > Okay, now I'm utterly baffled how 2.6.22 ever worked on this Geode, > because this, to the best of my reading, mimics the 2.6.22 behavior > exactly. DID IT REALLY, and/or did you make any kind of configuration > changes? I copied in a 2.6.22 kernel to see that it really did work, and it did. But here's the crazy part - I did a dmesg, and it looks like it *is* using e820 data, and it looks complete (I see the entire map - including the ACPI and reserved blocks way up high). So apparently it was the 2.6.22 code that was buggy, but reading it, I don't immediately see how. Jordan -- Jordan Crouse Systems Software Development Engineer Advanced Micro Devices, Inc. __________________________________ Yahoo! Clever: Sie haben Fragen? Yahoo! Nutzer antworten Ihnen. www.yahoo.de/clever - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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