linux-kernel - Re: [PATCH v2] acpi: Fix regression where _PPC is not read at boot even when ignore

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090429144818.GA9716@elte.hu>
Date:	Wed, 29 Apr 2009 16:48:18 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Thomas Renninger <trenn@...e.de>
Cc:	Len Brown <lenb@...nel.org>, Matthew Garrett <mjg59@...f.ucam.org>,
	"Darrick J. Wong" <djwong@...ibm.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	cpufreq@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v2] acpi: Fix regression where _PPC is not read at boot
	even when ignore_ppc=0


* Thomas Renninger <trenn@...e.de> wrote:

> On Monday 20 April 2009 12:45:29 Ingo Molnar wrote:
> > 
> > * Thomas Renninger <trenn@...e.de> wrote:
> > 
> > > On Monday 20 April 2009 07:13:51 Len Brown wrote:
> > > > FYI,
> > > > Thanks to Ebay, I now have a T60:-)
> > > Hmm, Lenovo sold a lot different machines as T60.
> > > I found an acpidump of a T60 here without any _PPC function
> > > at all.
> > > 
> > > > and so i put the DSDT here:
> > > > http://bugzilla.kernel.org/show_bug.cgi?id=13139
> > > > 
> > > > I'll poke at this in more detail soon...
> > > Ingo, can you place yours somewhere too, please.
> > > This one should be taken into account for _PPC code changes
> > > as it seem to implement some corner case.
> > 
> > Sure, find it attached below.
> > 
> > 	Ingo
> > 
> > DSDT @ 0x7f6e65e7
> >   0000: 44 53 44 54 65 c7 00 00 01 49 4c 45 4e 4f 56 4f  
> ...
> Ingo, did you do a BIOS update in between?
> The DSDT and SSDTs you added do not contain a _PPC function.
> These ACPI tables definitely do not suffer from an initial _PPC
> evaluation.

no, i didnt update anything. I only touch the BIOS if i absolutely 
have to. Was the original analysis wrong then?

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/