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Re: acpi crashes, maybe /dev/mem is buggy?

From: Samuel Thibault
Subject: Re: acpi crashes, maybe /dev/mem is buggy?
Date: Sat, 27 Nov 2021 18:44:55 +0100
User-agent: NeoMutt/20170609 (1.8.3)


Andrea Monaco, le ven. 26 nov. 2021 22:52:53 +0100, a ecrit:
> as I said some time ago, my acpi server always crashes when I start it,
> while parsing ACPI tables.
> I found out that the XSDT table, the second one that is inspected, is
> supposedly at physical address 0x9cfd1188, which is quite high.  When I
> inspect that address on GNU/Linux in /dev/mem, I see the string "XSDT"
> as expected; on Hurd I see zeros and then garbage.
> Maybe gnumach writes at that address at some point?

Possibly. Please post the gnumach boot logs, so we can see the biosmem

> Or it's an issue with the /dev/mem driver?

I don't think so.

> I can't locate it inside gnumach.

It's in i386/i386at/mem.c


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