linux-kernel - Huge increase in "io resource overlap" messages on Toshiba Satellite A40

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Message-Id: <200808302137.56479.elendil@planet.nl>
Date:	Sat, 30 Aug 2008 21:37:55 +0200
From:	Frans Pop <elendil@...net.nl>
To:	linux-kernel@...r.kernel.org
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>
Subject: Huge increase in "io resource overlap" messages on Toshiba Satellite A40

Up to 2.6.26 the only thing I used to get for pnp 00:08 was:
pnp 00:08: can't add resource for IO 0xa8-0xa9

But now with 2.6.27-rc4/5 I'm suddenly getting a total of 78 (!) lines
(I've not tested earlier .27-rc versions on this box):
pnp 00:08: io resource (0x2e-0x2f) overlaps 0000:00:1f.5 BAR 0 (0x0-0xff), disabling
pnp 00:08: io resource (0x62-0x62) overlaps 0000:00:1f.5 BAR 0 (0x0-0xff), disabling
pnp 00:08: io resource (0x66-0x66) overlaps 0000:00:1f.5 BAR 0 (0x0-0xff), disabling
pnp 00:08: io resource (0x80-0x80) overlaps 0000:00:1f.5 BAR 0 (0x0-0xff), disabling
[...]
pnp 00:08: io resource (0xa8-0xa9) overlaps 0000:00:1f.5 BAR 0 (0x0-0xff), disabling
[...]
pnp 00:08: io resource (0xbc-0xbd) overlaps 0000:00:1f.5 BAR 0 (0x0-0xff), disabling
pnp 00:08: io resource (0x2e-0x2f) overlaps 0000:00:1f.5 BAR 1 (0x0-0x3f), disabling
[...]
pnp 00:08: io resource (0x3c-0x3d) overlaps 0000:00:1f.5 BAR 1 (0x0-0x3f), disabling
pnp 00:08: io resource (0x2e-0x2f) overlaps 0000:00:1f.6 BAR 0 (0x0-0xff), disabling
[...]
pnp 00:08: io resource (0xbc-0xbd) overlaps 0000:00:1f.6 BAR 0 (0x0-0xff), disabling
pnp 00:08: io resource (0x2e-0x2f) overlaps 0000:00:1f.6 BAR 1 (0x0-0x7f), disabling
[...]
pnp 00:08: io resource (0x50-0x53) overlaps 0000:00:1f.6 BAR 1 (0x0-0x7f), disabling
pnp 00:08: io resource (0x63-0x63) overlaps 0000:00:1f.6 BAR 1 (0x0-0x7f), disabling
pnp 00:08: io resource (0x65-0x65) overlaps 0000:00:1f.6 BAR 1 (0x0-0x7f), disabling
pnp 00:08: io resource (0x72-0x77) overlaps 0000:00:1f.6 BAR 1 (0x0-0x7f), disabling

1f.5 and 1f.6 are the ICH4 AC'97 audio controller and AC'97 (software) modem.
I'm not completely sure what pnp 00:08 is. Seems to have the "system" driver.

Full dmesg and kernel config attached.

Cheers,
FJP


View attachment "dmesg_2.6.27-rc5" of type "text/plain" (28021 bytes)

View attachment "config" of type "text/plain" (61914 bytes)