linux-kernel - Re: 2.6.20 PCI Cannot allocate resource region 2

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Message-ID: <1a297b360702052228r2b3eb84bpa2d3d836f5777456@mail.gmail.com>
Date:	Tue, 6 Feb 2007 10:28:56 +0400
From:	"Manu Abraham" <abraham.manu@...il.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"Grant Grundler" <grundler@...isc-linux.org>,
	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz,
	greg@...ah.com
Subject: Re: 2.6.20 PCI Cannot allocate resource region 2

On 2/6/07, Andrew Morton <akpm@...ux-foundation.org> wrote:
> On Mon, 5 Feb 2007 22:03:31 -0700 Grant Grundler <grundler@...isc-linux.org> wrote:
>
> > On Mon, Feb 05, 2007 at 09:55:28PM -0700, Grant Grundler wrote:
> > ...
> > > >   Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> > > >   Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR+ <PERR+
> > > >   Latency: 0, Cache Line Size 0c
> > > >   BIST is running
> > >
> > > BIST is required to complete in 2 seconds. Either with success or failure.
> > > I expect BIOS to have complained before launching grub/lilo.
> >
> > Gregkh,
> > I just realized linux-pci bus scan should ignore devices (print a warning)
> > which have BIST set.  Want a patch for this?
> >
> > Slight risk some previously "working" device which violates the
> > spec might get ignored...but I hope there aren't too many of those.
>
> Should we wait two seconds before declaring the device dead?  To see whether
> it will come back?
>


Wonders !

I was about to give the card it's last rites. I thought well let me
try under the other OS

I didn't have any drivers for the same, since the demodulator driver
doesn't exist in the other OS also, but the bridge device does have
the driver.

I plugged the card in, the OS searched for drivers, since i didn't
have any didn't load any..
So it went under a question mark.

Looking under Resources,

It showed the PCI information string like this ..

PCI\VEN_1822&DEV_4E35&SUBSYS_00311822&REV_01\4&2E98101C&0&10F0

then i thought try with the driver eventhough support for the
demodulator doesn't exist ..

Downloaded and installed drivers ..

Lo ..!

Memory Range: F87FF000 - F87FFFFF
IRQ : 17

it got assigned a memory region indeed.

So, to wrap it up, the device is not dead .. We have something wrong
in the PCI subsystem probably.


Regards,
Manu
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