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

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Message-ID: <4521BFB3.9070607@us.ibm.com>
Date:	Mon, 02 Oct 2006 18:41:07 -0700
From:	Badari Pulavarty <pbadari@...ibm.com>
To:	Andrew Morton <akpm@...l.org>
CC:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	lkml <linux-kernel@...r.kernel.org>, suka@...ibm.com
Subject: Re: 2.6.18-mm2 networking problem + IRQ panic

Andrew Morton wrote:
> On Mon, 02 Oct 2006 16:07:12 -0700
> Badari Pulavarty <pbadari@...ibm.com> wrote:
>
>   
>> 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..
>>
>> ...
>>     
> yes, this is probably the insert-ioapics-and-local-apic-into-resource-map
> patch.  Does mainline crash too?  It should.  Or at least, it should have
> the same resource allocation errors.
>
>   
Yes. Backing out this solved the problem. (I got the patch from your -mm1
broken out directory and reverted that).

x86_64-mm-insert-ioapics-and-local-apic-into-resource-map

> I've backed that out and applied an updated version.  My current rollup
> (which actually seems to mostly compile now) is at
>
> http://userweb.kernel.org/~akpm/badari.bz2
>
> That's against 2.6.18.  Can you see if that fixes things?
>
>   
>> 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>]
>>
>>     
>
> Once upon a time we'd have got a backtrace from that.
>   
 :)

Thanks,
Badari


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