linux-kernel - Re: bisected: Re: 4.3.0-rc3-00042: ACPI Warning: AcpiEnable failed

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Date:	Mon, 12 Oct 2015 21:18:49 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	"Zheng, Lv" <lv.zheng@...el.com>
Cc:	Meelis Roos <mroos@...ux.ee>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Len Brown <lenb@...nel.org>,
	"Moore, Robert" <robert.moore@...el.com>
Subject: Re: bisected: Re: 4.3.0-rc3-00042: ACPI Warning: AcpiEnable failed

On Monday, October 12, 2015 07:48:12 AM Zheng, Lv wrote:
> Hi, Rafael

Hi,

> The bug has been fixed.
> The root cause is the previous commit doesn't cover a hidden logic:
>  acpi_enable() should rely on the existence of FADT while currently it relies on the number of loaded tables.
> The fix that removes the hidden logic is an ACPICA commit.
> Shall we wait until it is merged via an ACPICA release cycle or make it a bit faster by merging Linuxized version first?

Please send the Linuxized version of it ASAP, we need it for 4.3.

Thanks,
Rafael


> > From: mroos@...h.ut.ee [mailto:mroos@...h.ut.ee] On Behalf Of Meelis Roos
> > Sent: Friday, October 02, 2015 2:14 PM
> > 
> > > > > 4.2.0 worked fine, 4.3.0-rc3-00042-g3225031 was the next one tested
> > > > > after that and with this kernel, ACPI enabling fails. This is Pentium
> > > > > III, 1 GHz, Intel 815 chipset, DMI tells something about "Packard Bell
> > > > > NEC" as the mainboard type.
> > > > >
> > > > > Full dmesg and config are below. What additional information can I
> > > > > provide besides bisecting (will take time)?
> > > >
> > > > Bisecting done, here is the culprit:
> > > >
> > > > 8ec3f459073e67e5c6d78507dec693064b3040a2 is the first bad commit
> > > > commit 8ec3f459073e67e5c6d78507dec693064b3040a2
> > > > Author: Lv Zheng <lv.zheng@...el.com>
> > > > Date:   Tue Aug 25 10:29:01 2015 +0800
> > > >
> > > >     ACPICA: Tables: Fix global table list issues by removing fixed table indexes
> > > >
> > > >     ACPICA commit c0b38b4c3982c2336ee92a2a14716107248bd941
> > >
> > > Thanks a lot for bisecting this!
> > >
> > > It will help if you file a bug entry at bugzilla.kernel.org agaist ACPI for
> > > this issue (please mark it as a regression) and attach the output of acpidump
> > > from the affected system to it.
> > 
> > Done, https://bugzilla.kernel.org/show_bug.cgi?id=105351
> > 
> > --
> > Meelis Roos (mroos@...ux.ee)
> --
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-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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