Re: [PATCH 31/31] memblock: Add memblock_find_in_range()

From: H. Peter Anvin
Date: Wed Jul 28 2010 - 16:00:14 EST

On 07/28/2010 12:27 PM, Yinghai Lu wrote:
>> Yinghai, do you have any more detail, or know who would? Also copying
>> the Qlogic Infinipath maintainer email...
> when I was debug memblock with x86, found the strange crash when high/low.
> then use kexec with "memtest" in command line, and the early memtest does find
> some bad memory.
> then I add more print about EPT physical address for first kernel,
> it does show that range is used by qla driver in first kernel.
> I built all needed drivers in kernel so can pxeboot the kernel on all test platforms easily.

[Cc: Andrew Vasquez, who seems to have written the offending code,
checkin df613b96077cee826b14089ae6e75eeabf71faa3.]

The question is still open why this particular DMA activity was not shut
down before the kexec. I'm not familiar with how non-crashdump kexec
idles the hardware, but it obviously better do so.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at