Re: Physical memory error on ThinkPad 701C

[Ted Unangst <ted_(_dot_)_unangst_(_at_)_gmail_(_dot_)_com>]

you just don't have enough ram to run openbsd, at least not without a
lot of tweaking to reduce the size of the kernel.

should have posted to misc, btw.

On 12/2/05, Hans Christian Schmidt <HansChr_(_at_)_web_(_dot_)_de> wrote:
> Hi folks!
>
> I've just installed OpenBSD 3.8 on my IBM ThinkPad 701C by booting up
> from the floppyC38.tgz image. The 516 MB disk was partitioned with root,
> swap, usr, var and tmp all meeting the minimum size requirements. I've
> only installed "bsd", "base38.tgz", "etc38.tgz" and "man38.tgz".
>
> There are 12 MB of RAM available. 4 MB on board and additional 8
> MB installed separately. After the installation was complete I
> received the following startup log:
>
>  OpenBSD 3.8 (GENERIC) #138: Sat Sept 10 15:41:37 MDT 2005
>        deraadt_(_at_)_i386_(_dot_)_openbsd_(_dot_)_org:/usr/src/sys/arch/i386/compile/GENERIC
>  cpu0: Intel 486DX2 ("GenuineIntel" 486-class)
>  cpu0: FPU,V86
>  real mem = 12165120 (11880K)
>  panic: cannot get physical memory for buffer cache
>  Stopped at     Debugger+0x4:   leave
>  RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
>  DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
>
> #ddb> trace
>
>  Debugger(ae,d06f1f08,d06f1f28,ae000,ae) at Debugger+0x4
>  panic(d0515640,d06f1f08,1,0,d2197000) at panic+0x63
>  setup_buffers(d06f1f48,b000,1) at setup_buffers+0x1bb
>  cput_startup(d04d6f85,d04f3ce0,d06f1fa0,d0208972,c00000= at
> cpu_startup+0x109
>
> #ddb> ps
>
>  PID PPID PGRP UID S FLAGS WAIT COMMAND
>  [empty]
>
>
> Maybe these information might help too:
>
> (Boot from floppyC38.tgz)
>
>  boot> machine memory
>  Region 0: type 1 at 0x0 for 639KB
>  Region 1: type 1 at 0x100000 for 11264KB
>  Low ram: 639KB  High ram: 11264KB
>  Total free memory: 11903KB
>
>
> I read about the RAM problem on old Compaq Armada notebooks (as
> mentioned on OpenBSD.org). It's probably a similar error but I don't
> know how to adjust the parameters to fit my RAM size. The Compaq example
> relates to 64 MB RAM.
>
> Openbsd.org:  boot> machine memory +0x3000000_(_at_)_0x1000000
>
> http://www.openbsd.org/de/i386-laptop.html
>
>
> Any suggestions?
>
>
> Best regards,
> Hans Christian Schmidt