On Fri, 5 Apr 2002, Arnvid Karstad wrote:
> Hi,
>
> recently I've seen a few problems with several laptops and if one are so
> unfortunate that one needs to reboot into Windows after a session in linux.
> Normal restart of windows never have a problem on the same machines, but if
> you go from Linux to for instance Windows by shutdown -r or reboot it will
> freeze half way into the booting process.
>
> A power cycle will hower fix this.
>
> Anyone got an idea about where to start looking?
>
> Best regards
>
> Arnvid Karstad
I have this same problem on my Compaq Presario. I think that this
is because the BIOS was shadowed and used some writable-RAM somewhere.
Linux seems to do a 'warm-boot'. The result being that some of the
stuff that the BIOS counts on was wiped out by Linux, i.e.,
stuff from E000:0000 -> E000:FFFF (the BIOS is normally at F000:0000).
My 'fix' is to cold-boot, i.e., processor reset during the shutdown.
Cheers,
Dick Johnson
Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips).
Windows-2000/Professional isn't.
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This archive was generated by hypermail 2b29 : Sun Apr 07 2002 - 22:00:17 EST