Re: x86 remap allocator in kernel 3.0

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Hello Petr,

On Tue, 10 Jan 2012 19:14:32 +0100
Petr Tesarik <ptesarik@xxxxxxx> wrote:

> Ken'ichi Ohmichi, please note that makedumpfile is also affected by this 
> deficiency. On my test system, it will fail to produce any output if I set 
> dump level to anything greater than zero:
> 
> makedumpfile -c -d 31 -x vmlinux-3.0.13-0.5-pae.debug vmcore kdump.31
> readmem: Can't convert a physical address(34a012b4) to offset.
> readmem: type_addr: 0, addr:f4a012b4, size:4
> get_mm_discontigmem: Can't get node_start_pfn.
> 
> makedumpfile Failed.
> 
> However, fixing this for makedumpfile is harder, and it will most likely 
> require a few more lines in VMCOREINFO, because debug symbols may not be 
> available at dump time, and I can't see any alternative method to locate the 
> remapped regions.

Thank you for your indication.

Could you send me your kernel configuration so that I can reproduce the issue ?

Thanks
Atsushi Kumagai

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