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Date: Tue, 25 Oct 2011 11:14:06 +0400
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From: Pavel Timofeev <timp87@gmail.com>
To: Dimitry Andric <dim@freebsd.org>
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Cc: freebsd-current@freebsd.org, Andriy Gapon <avg@freebsd.org>,
	Dennis Koegel <dk@neveragain.de>
Subject: Re: Fresh installed Freebsd 9 don't boot from hd
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2011/10/24 Dimitry Andric <dim@freebsd.org>

> On 2011-10-23 21:56, Dennis Koegel wrote:
>
>> On Sun, Oct 23, 2011 at 08:57:59PM +0300, Andriy Gapon wrote:
>>
>>> I found a document that suggests a possibility of BIOS writing more bytes
>>> to the
>>> array than its current size of 0x42: [...]
>>> Could you please test this hypothesis by trying the following patch?
>>>
>>
>> With -O1 and this patch, it boots. Thank you!
>>
>
> If you have some time, can you also re-check the other cases you listed
> before?  E.g.:
>
>
> gcc -Os -fno-guess-branch-probability -fomit-frame-pointer
> -fno-unit-at-a-time \
>        -mno-align-long-strings -mrtd [from before r225530]:
> gcc -Os -mrtd:
> gcc -O1 -mrtd:
> gcc -O1:
> gcc -O0:
> gcc -Os:
>
> clang -O1:
> clang -Os:
> clang -Oz:
>

My 5 cents:
tested on my HP Proliant DL360 G5 with Andriy's patch
clang -O1: ok (VirtualBox with ahci boots too)
clang -Os: ok
clang -Oz: ok


>
> Thanks. :)
>