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Date:      Tue, 17 Apr 2012 15:48:59 +0200
From:      Garrett Anderson <gary@amerlok.com>
To:        Eugene Grosbein <egrosbein@rdtc.ru>
Cc:        Alexey Dokuchaev <danfe@nsu.ru>, stable@freebsd.org, John Baldwin <jhb@freebsd.org>
Subject:   Re: RELENG_8 kernel as of Apr 14 does not boot
Message-ID:  <CAKBX9h3ZZf0zNv2QXTUCUenKejh_wR3SE5%2B0OFTy3C%2BzyL%2BF4g@mail.gmail.com>
In-Reply-To: <4F8D6B58.7010902@rdtc.ru>
References:  <20120416042645.GA53074@regency.nsu.ru> <20120416070646.GA78414@regency.nsu.ru> <4F8BD14D.8050206@rdtc.ru> <201204170840.37631.jhb@freebsd.org> <4F8D6B58.7010902@rdtc.ru>

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I am working on the Jerome's computer.  What you want is still on the
server in Moscow.  Yes, there is a copy on the Jerome's computer but
it is password protected.  What is the password?  I don't know but it
is the same one that is used to access the Exchange server in Moscow.
So, we come back to the same bottleneck: Access to the Exchange Server
in Moscow.

The best thing to do is to get access to Jerome's "current" email on
the server in Moscow.  The alternative is to get this password and I
setup TeamViewer on the Jerome's computer and you access his computer
from London (via TeamViewer).  In either case, we need Jerome's
Outlook Password and that can only be reset in Moscow.

On Tue, Apr 17, 2012 at 3:08 PM, Eugene Grosbein <egrosbein@rdtc.ru> wrote:
>> On Monday, April 16, 2012 3:59:09 am Eugene Grosbein wrote:
>>>>>> Just update my 8.x kernel sources last weekend, and newly built kern=
el did
>>>>>> not boot for me:
>>>>>>
>>>>>> link_elf: symbol mem_range_softc undefined
>>>>>> KLD file acpi.ko - could not finalize loading
>>>>>> kernel trap 12 with interrupts disabled
>>>>>
>>>>> Try to add 'device mem' to your kernel configuration.
>>>>
>>>> :-)
>>>>
>>>> I explicitly have "nodevice mem" and "nodevice io" in my config. =A0Th=
ey are
>>>> being loaded from /boot/loader.conf. =A0This worked fine for quite a w=
hile.
>>>>
>>>> I will try to have it compiled-in, but would still prefer it fixed, or=
 in
>>>> case it cannot be fixed and mem.ko cannot be loaded separately from no=
w on,
>>>> appropriate entry in UPDATING.
>>>
>>> It seems John Baldwin brought dependency of acpi.ko on device mem
>>> 4 days ago to RELENG_8 with MFC:
>>>
>>> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/i386/acpica/acpi_wakeup.c=
#rev1.50.2.3
>>
>> Hmm, this has been broken for a long time on HEAD and 9 it seems. =A0How=
ever, there
>> you get compile breakage (as acpi is no longer supported as a module in =
9+) if you
>> try to build a kernel with 'nodevice mem'.
>>
>> Hmm, mp_machdep.c also breaks. =A0That is probably true on i386 as well,=
 and has
>> been true even on 7.x. =A0(That is, you can't use 'nodevice mem' and 'SM=
P' in the
>> same kernel.)
>>
>> The simplest fix is to just move mem_range_softc out of mem.ko into the =
base kernel.
>>
>> OTOH, what are you trying to gain by putting mem.ko into a module rather=
 than part of
>> the base kernel? =A0Do you just want no /dev/mem file or are you trying =
to disable all
>> of the MTRR support as well? =A0It may be that we need to rethink what g=
oes into mem.ko
>> and have it only exclude /dev/mem but always leave MTRR support enabled.
>
> I guess, Alexey just tries to make smallest possible kernel just for fun =
:-)
> Or, for PicoBSD case where kernel should be booted from very small media =
and modules from another one.
>
> Eugene Grosbein
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