linux-kernel - Re: Memory probing fails after 2.6.30 (bisected)

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Date:	Tue, 05 Jan 2010 14:19:23 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Anders Eriksson <aeriksson@...tmail.fm>
CC:	mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: Memory probing fails after 2.6.30 (bisected)

On 01/05/2010 01:15 PM, Anders Eriksson wrote:
> 
> yinghai@...nel.org said:
>> whole boot log with debug with boot command line?
>>
>>> I can produce a pic of the dmesg for the fingered commit of needed.
>> boot that with earlyprintk=vga please. 
> 
> I managed to pull this one from the failing boot.
> Does it help?
> 
> Linux version 2.6.30-rc2-00450-g8ecee46 (root@...ven) (gcc version 4.3.2 (Gentoo 4.3.2-r3 p1.6, pie-10.1.5) ) #21 SMP Tue Jan 5 10:45:52 CET 2010
> KERNEL supported cpus:
>   Intel GenuineIntel
>   AMD AuthenticAMD
>   NSC Geode by NSC
>   Cyrix CyrixInstead
>   Centaur CentaurHauls
>   Transmeta GenuineTMx86
>   Transmeta TransmetaCPU
>   UMC UMC UMC UMC
> BIOS-provided physical RAM map:
>  BIOS-88: 0000000000000000 - 000000000009f000 (usable)
>  BIOS-88: 0000000000100000 - 0000000001000000 (usable)

can you try to revert some e820 detect patch?

bca23db: x86, setup: revert ACPI 3 E820 extended attributes support
df7699c: x86, setup: "glove box" BIOS interrupts in the core boot code
cd67059: x86, setup: guard against pre-ACPI 3 e820 code not updating %ecx
c549e71: x86, setup: ACPI 3, BIOS workaround for E820-probing code
32ec7fd: x86, setup: preemptively save/restore edi and ebp around INT 15 E820
01522df: x86, setup: mark %esi as clobbered in E820 BIOS call
1b72691: x86: fix build warnings in real mode code
c3965bd: x86 boot: proper use of ARRAY_SIZE instead of repeated E820MAX constant
cf9b111: x86: remove pointless comments
829157b: x86: handle BIOSes which terminate e820 with CF=1 and no SMAP
96ae6ea: i386: move boot
4ee5b10: [x86 setup] Correct the SMAP check for INT 0x15, AX=0xe820
2efa33f: [x86 setup] Handle case of improperly terminated E820 chain
449f2ab: Memory probing support for the new x86 setup code
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