Re: UML fails to locate address space
From: Tom Spink
Date: Tue May 20 2008 - 14:01:17 EST
2008/5/20 Jeff Dike <jdike@xxxxxxxxxxx>:
> On Tue, May 20, 2008 at 05:43:17PM +0100, Tom Spink wrote:
>> I suspected this type of foul-play, and tried altering bottom to 1,
>> but this didn't work. So, I took out the page_ok test, and it
>> continued booting. So I went back, put the test back in and
>> incremented bottom until I got to 16. It worked at 16. :-)
> Heh, I guess they were also worried about up to 64K offsets off a NULL
> pointer too.
>> Is this something that can be fixed, or would a config option be
> This was done in order to remove config options. It might be
> reasonable to effectively do what you did, and search for the lowest
> address at which mmap works and start from there.
Cool, and nice work BTW. I just for-looped up the way, from 0.
>> I am willing to blame Ubuntu, but unfortunately, I can't find an
>> online resource of their patches.
> https://wiki.ubuntu.com/KernelGitGuide lists a bunch of git repos.
> Tell me which one applies to you and I'll take a look.
I'm a hardy. I bet it's 893f802872c3.
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