Subject: Re: NetBSD/ofppc boots multiuser on Pegasos
To: Simon Burge <simonb@NetBSD.org>
From: =?ISO-8859-1?Q?Jorge_Acereda_Maci=E1?= <email@example.com>
Date: 07/28/2006 03:42:20
Simon Burge wrote:
> =?ISO-8859-1?Q?Jorge_Acereda_Maci=E1?= wrote:
>>Simon Burge wrote:
>>>No ideas offhand. That's a page size which may or may not mean
>>>I wonder what happens if you do something like:
>>> dd if=/netbsd of=/tmp/foo bs=4k count=1 seek=1
>>>do you zeros or real data at 0x1000 in /tmp/foo ? Still, I'm not
>>>sure what that proves either if it works or not...
>>Interesting. I got two identical chunks at 0x0000 and 0x1000 which are
>>in fact the data at 0x0000 in /netbsd.
>>Want to hear something really annoying? if I use dd if=/netbsd
>>of=/tmp/foo instead of cp, I get an exact replica.
> I think cp uses mmap instead of read, but still uses writes normally?
> Maybe try regress/sys/uvm/mmap ?
mmap: mmap anon MAP_WIRED: Cannot allocate memory