Re: WARNING: CPU: 2 PID: 1 at arch/x86/mm/ioremap.c:171 __ioremap_caller+0x290/0x2fa()

Stephane Eranian
2014-07-10T19:12:46Z

On Thu, Jul 10, 2014 at 2:13 PM, Fabio Coatti <fabio.coatti@gmail.com> wrote:
> In data giovedì 10 luglio 2014 10:54:48, Peter Zijlstra ha scritto:
>> On Thu, Jul 10, 2014 at 10:52:08AM +0200, Peter Zijlstra wrote:
>> > On Thu, Jul 10, 2014 at 10:44:21AM +0200, Peter Zijlstra wrote:
>> > > On Wed, Jul 09, 2014 at 12:48:05PM -0700, Fabio Coatti wrote:
>> > > > In data mercoledì 9 luglio 2014 11:54:21, Greg Kroah-Hartman ha
> scritto:
>> > > > > Try cc:ing everyone on that patch, with the original information you
>> > > > > provided, and the linux-kernel mailing list. Those developers
>> > > > > should be
>> > > > > able to help you out properly.
>> > > >
>> > > > Ok, here you can find the description of a problem that I'm
>> > > > experiencing on
>> > > > latest kernels, since 3.15.0. (this report comes from 3.15.4)
>> > > >
>> > > > lug 07 22:08:00 calvin kernel: resource map sanity check conflict:
>> > > > 0xfed10000 0xfed15fff 0xfed10000 0xfed13fff reserved
>> > > > lug 07 22:08:00 calvin kernel: ------------[ cut here ]------------
>> > >
>> > > I think this is a 'known' issue on Thinkpad (iirc). For some obscure
>> > > reason its BIOS has funny ideas about resources etc.
>> > >
>> > > I couldn't quickly find the prvious thread, maybe Stephane knows.
>> >
>> > Found it:
>> > lkml.kernel.org/r/20140224162400.GE16457@pd.tnic
>>
>> Ok, reread that thread and no definite conclusion was found I think.
>> Just Thinkpad firmware having overlapping resources.
>
>
> So I guess that this happens also for HP Folio 9470m, not only in thinkpads. I
> wonder how many machines shares this behaviour...
>
Somehow, I thought that Bjorn had proposed a fix for this.