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SubjectRe: Suspected regression in "x86: extend e820 ealy_res support 32bit"
On Wed, May 21, 2008 at 4:23 PM, Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> Yinghai Lu wrote:
>>
>> noticed that bootmap_size is shifted already...
>>
>> please use attached patch to see if bootmap is right...
>>
>
> Unfortunately its a bit difficult because printk() output isn't appearing at
> early boot (not sure why). I'll try to extract something useful tomorrow.
>
> Perhaps this is helpful:
>
> This the e820 map of a regular boot:
>
> BIOS-provided physical RAM map:
> Xen: 0000000000000000 - 000000000009f000 (usable)
> Xen: 0000000000100000 - 0000000010000000 (usable)
> debug: ignoring loglevel setting.
> limit_regions start: 0000000000000000 - 000000000009f000 (usable)
> limit_regions start: 0000000000100000 - 0000000010000000 (usable)
> limit_regions endfunc: 0000000000000000 - 000000000009f000 (usable)
> limit_regions endfunc: 0000000000100000 - 0000000010000000 (usable)
> user-defined physical RAM map:
> user: 0000000000000000 - 000000000009f000 (usable)
> user: 0000000000100000 - 0000000010000000 (usable)
> 0MB HIGHMEM available.
> 256MB LOWMEM available.
> [...]
> Entering add_active_range(0, 0, 65536) 0 entries of 256 used
> Zone PFN ranges:
> DMA 0 -> 4096
> Normal 4096 -> 65536
> HighMem 65536 -> 65536
> Movable zone start PFN for each node
> early_node_map[1] active PFN ranges
> 0: 0 -> 65536
> On node 0 totalpages: 65536
> DMA zone: 56 pages used for memmap
> DMA zone: 0 pages reserved
> DMA zone: 4040 pages, LIFO batch:0
> Normal zone: 840 pages used for memmap
> Normal zone: 60600 pages, LIFO batch:15
> HighMem zone: 0 pages used for memmap
> Movable zone: 0 pages used for memmap
>
>

please check patch

http://lkml.org/lkml/2008/5/21/570

[PATCH] x86: extend e820 ealy_res support 32bit - fix

also please try to boot with
console=uart8250,io,0x3f8,115200n8
to get more early printout...

YH


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