Hi, Rafael

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?

Thanks and best regards
-Lv

> From: [email protected] [mailto:[email protected]] 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 <[email protected]>
> > > 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 ([email protected])
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to