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Date:      Tue, 23 Feb 2010 12:47:22 -0300
From:      Renato Botelho <rbgarga@gmail.com>
To:        Brandon Gooch <jamesbrandongooch@gmail.com>
Cc:        Chris Hedley <freebsd-current@chrishedley.com>, FreeBSD Current <freebsd-current@freebsd.org>, Andriy Gapon <avg@icyb.net.ua>
Subject:   Re: Can't use USB keyboard during boot menu
Message-ID:  <747dc8f31002230747u7fbe5030y2d0c869d5db94a0a@mail.gmail.com>
In-Reply-To: <179b97fb1002230728l4294916cs6b4b9a18b18f044a@mail.gmail.com>
References:  <747dc8f31002220835g481b0baeqb1d6df32a79b7da2@mail.gmail.com>  <alpine.BSF.2.00.1002222231100.98337@teapot.cbhnet> <747dc8f31002230318v384e0259mcfddbf137c0d5057@mail.gmail.com>  <4B83D821.6000207@icyb.net.ua> <179b97fb1002230728l4294916cs6b4b9a18b18f044a@mail.gmail.com>

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On Tue, Feb 23, 2010 at 12:28 PM, Brandon Gooch
<jamesbrandongooch@gmail.com> wrote:
> On Tue, Feb 23, 2010 at 7:29 AM, Andriy Gapon <avg@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@chrishedley.com> wrote:
>> [snip]
>>>> Do you have USB legacy support enabled in your BIOS? =A0I'm not sure i=
f
>>>> 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 easie=
st way
>>>> to get the keyboard working.
>>>
>>> Yes, I do, but it seems to be a regression on FreeBSD itself, I had thi=
s problem
>>> in the past and I checked the same things i need to check in the past a=
gain 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 emulatio=
n, but
>> doesn't mark that memory as used in system memory map. =A0In that case t=
hat memory
>> could be overwritten by the loader. =A0If that's true then the blame is =
on the BIOS.
>> =A0Alternatively, our code might be parsing the system memory map incorr=
ectly.
>> 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?r=
1=3D199714&r2=3D200309
>
> 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
> =A0safely allocate a heap region above 1MB. =A0This enables {gpt,}zfsboot=
()
> =A0to allocate much larger buffers than before.
> - Use a larger buffer (1MB instead of 128K) for temporary ZFS buffers. =
=A0This
> =A0allows more reliable reading of compressed files in a raidz/raidz2 poo=
l.
>
> Submitted by: =A0 Matt Reimer =A0mattjreimer of gmail
> MFC after: =A0 =A0 =A01 week
>
> Renato, are you booting ZFS?

Nope, UFS. I'll try to find another USB keyboard to test

--=20
Renato Botelho



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