Date: Wed, 14 Apr 1999 21:56:39 -0400 From: "Stephen Nadas" <nadas@raleigh.ibm.com> To: freebsd-mobile@FreeBSD.ORG, Michael Reilly <michaelr@cisco.com> Subject: Re: IBM TP 600 Message-ID: <199904150203.WAA35990@rtpmail02.raleigh.ibm.com> In-Reply-To: <4.1.19990414164301.00a347d0@pita.cisco.com> References: <36F3F170.6A0B8C36@tinker.com>
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Michael,
you can try the following (i've not tried it on a 600... so your
mileage may vary)
-Steve Nadas
From: <color><param>0000,0000,8000</param>Self <<Single-user mode>
</color>To: <color><param>0000,0000,8000</param>Greg Lehey <<grog@lemis.com>
</color>Subject: <color><param>0000,0000,8000</param>Re: System freezes on reboot
</color>Copies to: <color><param>0000,0000,8000</param>freebsd-mobile@FreeBSD.ORG,Patrick Seal
<<patseal@hyperhost.net>,Ralf Meyer <<ralf@thp.Uni-Duisburg.DE>
</color>Send reply to: <color><param>0000,0000,8000</param>nadas@raleigh.ibm.com
</color>Date sent: <color><param>0000,0000,8000</param>Tue, 16 Mar 1999 23:17:17 -0500
</color>I believe I had this problem w/770 on 2.2.8 with 96MB. I had remove
a SIMM, then gen with
options "MAXMEM=(97728)"
where 97728 is what the bios reports when system powers up to get
this
to work. do make install, halt, reinstall simm and all is well (no
more
intermittant freezes) there are some related posts in the mobile
archives
(look for thinkpad or 770 I forget which) I suspect some weirdness in
the IBM bios as 96*1024 != 97728
Regards,
Steve Nadas
Date sent: Wed, 17 Mar 1999 11:37:26 +1030
From: Greg Lehey <<<underline><color><param>0000,8000,0000</param>grog@lemis.com</underline></color>>
To: Patrick Seal <<<underline><color><param>0000,8000,0000</param>patseal@hyperhost.net</underline></color>>,
Ralf Meyer <<<underline><color><param>0000,8000,0000</param>ralf@thp.Uni-Duisburg.DE</underline></color>>
Copies to: <underline><color><param>0000,8000,0000</param>freebsd-questions@FreeBSD.ORG</underline></color>, <underline><color><param>0000,8000,0000</param>freebsd-
mobile@FreeBSD.ORG
</underline></color>Subject: Re: System freezes on reboot
Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia
<color><param>7F00,0000,0000</param>> On Tuesday, 16 March 1999 at 16:28:54 -0500, Patrick Seal wrote:
> >
> > On Tue, 16 Mar 1999, Ralf Meyer wrote:
> >
> >> Hello,
> >>
> >> I encounter the following problem with FreeBSD 3.1 on a ThinkPad
770ED:
> >> The machine has 128 MB of RAM. However, if I let FreeBSD
determine the
> >> amount of RAM or set MAXMEM=128*1024, the machine freezes on
every
> >> reboot attempt. Occasionally it also freezes during normal
operation.
> >> Freezing means that even the (so-called) power switch does not
work
> >> and I have to press the reset button with the help of a ballpen.
> >>
> >> One solution of the problem is to set the amount of RAM to 96 MB
in
> >> the kernel configuration file. In that case none of the problems
shows
> >> up. However I would prefer using the full memory as well as
> >> understanding the problem. Is this a known problem? Is it a
ThinkPad
> >> specific problem? Might there be a memory defect?
> >>
> >> Opinions, solutions and suggestions are appreciated.
> >
> > Hmm, Interesting. My Dell Latitude Freezes during a reboot, so
does
> > someone else's Latitude I know. I never thought that I might be
the
> > MAXMEM.
>
> I think you missed the point that Ralf was disabling 32 MB of memory
> in order to get it to work at all.
>
> > I have it in my kernel and my Laptop freezes too.
> >
> > Any developers have any ideas?
>
> ISTR hearing something about this before. If you don't get any
> answers from the mailing lists, you should enter a PR. man send-pr
> for further details.
>
> Greg
> --
> See complete headers for address, home page and phone numbers
> finger <underline><color><param>0000,8000,0000</param>grog@lemis.com</underline><color><param>7F00,0000,0000</param> for PGP public key
>
>
> To Unsubscribe: send mail to <underline><color><param>0000,8000,0000</param>majordomo@FreeBSD.org
</underline><color><param>7F00,0000,0000</param>> with "unsubscribe freebsd-mobile" in the body of the message
>
</color>Date sent: Wed, 14 Apr 1999 16:53:24 -0700
To: freebsd-mobile@FreeBSD.ORG
From: Michael Reilly <<michaelr@cisco.com>
Subject: IBM TP 600
<color><param>7F00,0000,0000</param>> Does anyone have instructions for installing 2.2.8 or 3.1 on an IBM
> ThinkPad 600? FreeBSD seems to have problems with the unique memory
> structure of this machine and so freezes during or shortly after boot.
> Usually there are three - four beeps before the freeze.
>
> My machine has 128MB of memory.
>
> When I couldn't get FreeBSD installed I tried BSDI. It failed in the same
> way until BSDI's tech support told me the MEMSIZ switch is needed at boot
> time - you specify a value for memory size which is at least 640 kb less
> than the actual memory installed in the machine. BSDI now runs without any
> problems
>
> FWIW - The comment from the BSDI tech support person was that he thought
> IBM had 0 bytes of memory on the system board instead of the usual 640kb
> and that a portion of the extended memory is used as the lower 640 kb by
> tricks in the hardware. Hence the memory probe during boot finds extended
> memory which is actually in use by the machine as the bottom 640kb.
>
> I'd like to run FreeBSD on my TP 600 but so far no luck.
>
> Thanks for any help,
>
> michael
> ----
> Michael Reilly michaelr@cisco.com
> Cisco Systems - Santa Cruz, CA
>
>
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>
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