linux-kernel - 2.6.18-mm2 networking problem + IRQ panic

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Date:	Mon, 02 Oct 2006 16:07:12 -0700
From:	Badari Pulavarty <pbadari@...ibm.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>, akpm@...l.org
Cc:	lkml <linux-kernel@...r.kernel.org>, suka@...ibm.com
Subject: 2.6.18-mm2 networking problem + IRQ panic

Hi,

I am having problem bringing up networking on 2.6.18-mm2.
I don't see any interrupts for eth0. I also see "cannot 
handle IRQ" panic on shutdown - wondering if they are related..

           CPU0       CPU1       CPU2       CPU3
  0:     112736     117883     117738     123737    IO-APIC-edge  timer
  1:          0          0          1         10    IO-APIC-edge  i8042
  4:          0          1          0        477    IO-APIC-edge  serial
  6:          0          0          0          5    IO-APIC-edge  floppy
  8:          0          0          0          0    IO-APIC-edge  rtc
  9:          0          0          0          0   IO-APIC-level  acpi
 12:          0         42          6         65    IO-APIC-edge  i8042
 14:       4869       1911       3449       6079    IO-APIC-edge  ide0
 15:          0      11051       4806        847    IO-APIC-edge  ide1
 17:      55636          0          5          0   IO-APIC-level  eth0
NMI:        216         40         38         41
LOC:     471992     471992     472046     471481
ERR:          0
MIS:          0


Everything works fine on 2.6.18.

(I saw similar report by Sukadev on 2.6.18-mm1).
dmesg shows (similar messages about unable to allocate messages):

PCI: Cannot allocate resource region 0 of device 0000:08:01.1
PCI: Cannot allocate resource region 0 of device 0000:08:02.1
PCI: Cannot allocate resource region 0 of device 0000:08:03.1
PCI: Cannot allocate resource region 0 of device 0000:08:04.1

Thanks,
Badari


INIT:do_IRQ: cannot handle IRQ -1
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at arch/x86_64/kernel/irq.c:118
invalid opcode: 0000 [1] SMP
last sysfs file: /devices/pci0000:00/0000:00:06.0/irq
CPU 1
Modules linked in: acpi_cpufreq ipv6 thermal processor fan button
battery ac dm_mod floppy parport_pc lp parport
Pid: 1, comm: init Not tainted 2.6.18-mm2 #1
RIP: 0010:[<ffffffff8020ced0>]



View attachment "lspci.out" of type "text/plain" (10244 bytes)