From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Steven A. Falco" <sfalco@harris.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: device not available because of BAR 0 collisions
Date: Tue, 26 Apr 2011 10:01:54 +1000 [thread overview]
Message-ID: <1303776114.2513.152.camel@pasglop> (raw)
In-Reply-To: <4DB5D548.7020303@harris.com>
On Mon, 2011-04-25 at 16:10 -0400, Steven A. Falco wrote:
> I'm getting an error message when trying to talk to some custom
> hardware:
>
> dx83xx 0001:43:00.0: device not available because of BAR 0
> [0xa1000000-0xa1ffffff] collisions
>
> I see in setup-res.c that this message comes out when there is no
> parent for
> a device resource.
.../...
It mostly happens in arch/powerpc/kernel/pci-common.c and the generic
setup-res.c
Try #define DEBUG at the top (before the #includes) of pci-common.c and
pci_32.c (remove the exiting #undef in the last one) and send us the
full dmesg log, along with the output of cat /proc/iomem
Cheers,
Ben.
next prev parent reply other threads:[~2011-04-26 0:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-25 20:10 device not available because of BAR 0 collisions Steven A. Falco
2011-04-26 0:01 ` Benjamin Herrenschmidt [this message]
2011-04-26 13:38 ` Steven A. Falco
2011-04-26 23:39 ` Benjamin Herrenschmidt
2011-04-27 14:22 ` Steven A. Falco
2011-04-27 19:51 ` Steven A. Falco
2011-04-28 17:29 ` Steven A. Falco
2011-04-28 20:55 ` Benjamin Herrenschmidt
2011-04-28 21:11 ` Steven A. Falco
2011-04-28 21:14 ` Benjamin Herrenschmidt
2011-04-28 21:19 ` Steven A. Falco
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