linux-kernel - Re: 2.6.18-mm1

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Date:	Tue, 26 Sep 2006 20:11:04 -0700
From:	Andrew Morton <akpm@...l.org>
To:	ebiederm@...ssion.com (Eric W. Biederman)
Cc:	linux-kernel@...r.kernel.org, Andi Kleen <ak@...e.de>,
	adurbin@...gle.com
Subject: Re: 2.6.18-mm1

On Tue, 26 Sep 2006 20:04:05 -0600
ebiederm@...ssion.com (Eric W. Biederman) wrote:

> When I apply:
> x86_64-mm-insert-ioapics-and-local-apic-into-resource-map
> 
> My e1000 fails to initializes and complains about a bad eeprom checksum.
> I haven't tracked this down to root cause yet and I am in the process of building
> 2.6.18-mm1 with just that patch reverted to confirm that is the only cause.
> 
> I could not see anything obvious in the patch.  I don't have a clue the patch
> could be triggering the problem I'm seeing.
> 
> At a quick visual diff I'm not seeing any other differences in the kernel boot
> logs, or in /proc/iomem.

This bit looks fishy:

 GSI 17 sharing vector 0x4A and IRQ 17
 PCI->APIC IRQ transform: 0000:05:0c.0[A] -> IRQ 17
+PCI: Cannot allocate resource region 8 of bridge 0000:00:02.0
+PCI: Cannot allocate resource region 8 of bridge 0000:01:00.0
+PCI: Cannot allocate resource region 8 of bridge 0000:01:00.2
+PCI: Cannot allocate resource region 0 of device 0000:01:00.1
+PCI: Cannot allocate resource region 0 of device 0000:01:00.3
+PCI: Cannot allocate resource region 0 of device 0000:03:04.0
+PCI: Cannot allocate resource region 0 of device 0000:03:04.1
 PCI-GART: No AMD northbridge found.
 PCI: Bridge: 0000:01:00.0
   IO window: disabled.
-  MEM window: fe000000-fe0fffff
+  MEM window: e2000000-e20fffff
   PREFETCH window: fd000000-fdffffff
 PCI: Bridge: 0000:01:00.2
   IO window: 1000-1fff
-  MEM window: fe100000-fe1fffff
+  MEM window: e2100000-e21fffff
   PREFETCH window: disabled.
 PCI: Bridge: 0000:00:02.0
   IO window: 1000-1fff
-  MEM window: fe000000-fe2fffff
+  MEM window: e2000000-e22fffff
   PREFETCH window: fd000000-fdffffff
 PCI: Bridge: 0000:00:06.0
   IO window: disabled.
@@ -123,17 +131,17 @@
 PCI: Bridge: 0000:00:1e.0
   IO window: 2000-2fff
   MEM window: fb000000-fc0fffff
-  PREFETCH window: e2000000-e20fffff


Wanna hack into arch/i386/pci/i386.c:pcibios_allocate_bus_resources() and
see what is conflicting with what?
-
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