Can't use USB keyboard during boot menu

[Brandon Gooch]

On Tue, Feb 23, 2010 at 7:29 AM, Andriy Gapon <avg at icyb.net.ua> wrote:
> on 23/02/2010 13:18 Renato Botelho said the following:
>> On Mon, Feb 22, 2010 at 7:35 PM, Chris Hedley
>> <freebsd-current at chrishedley.com> wrote:
> [snip]
>>> Do you have USB legacy support enabled in your BIOS?  I'm not sure if
>>> there's an option for the loader to use USB devices natively, but the BIOS's
>>> legacy option where it provides AT/PS2 emulation is probably the easiest way
>>> to get the keyboard working.
>>
>> Yes, I do, but it seems to be a regression on FreeBSD itself, I had this problem
>> in the past and I checked the same things i need to check in the past again and
>> everything is fine.
>
> A more precise way to state that would be "a regression in FreeBSD boot/loader".
> I think that you are referring to the issue that was fixed by r189017.
> It might be worthwhile investigating what was done in that revision and what
> happened in sys/boot code since then.
>
> One possibility is that your BIOS uses memory above 1MB for USB emulation, but
> doesn't mark that memory as used in system memory map.  In that case that memory
> could be overwritten by the loader.  If that's true then the blame is on the BIOS.
>  Alternatively, our code might be parsing the system memory map incorrectly.
> But I am just making wild guesses here.
>

I don't know if it is at all related, but this commit has caused
problems for me booting at least one of my machines:

http://svn.freebsd.org/viewvc/base/head/sys/boot/i386/zfsboot/zfsboot.c?r1=199714&r2=200309

Commit message:

Revision 200309 - (view) (annotate) - [select for diffs]
Modified Wed Dec 9 20:36:56 2009 UTC (2 months, 2 weeks ago) by jhb
File length: 24893 byte(s)
Diff to previous 199714
- Port bios_getmem() from libi386 to {gpt,}zfsboot() and use it to
  safely allocate a heap region above 1MB.  This enables {gpt,}zfsboot()
  to allocate much larger buffers than before.
- Use a larger buffer (1MB instead of 128K) for temporary ZFS buffers.  This
  allows more reliable reading of compressed files in a raidz/raidz2 pool.

Submitted by:	Matt Reimer  mattjreimer of gmail
MFC after:	1 week

Renato, are you booting ZFS?

-Brandon