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From: Brad Campbell <lists2009@fnarfbargle.com>
To: CaT <cat@zip.com.au>
Cc: Avi Kivity <avi@redhat.com>, Hugh Dickins <hughd@google.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	linux-mm <linux-mm@kvack.org>, netdev <netdev@vger.kernel.org>
Subject: Re: KVM induced panic on 2.6.38[2367] & 2.6.39
Date: Wed, 01 Jun 2011 19:52:33 +0800	[thread overview]
Message-ID: <4DE62801.9080804@fnarfbargle.com> (raw)
In-Reply-To: <20110601111841.GB3956@zip.com.au>

On 01/06/11 19:18, CaT wrote:
> On Wed, Jun 01, 2011 at 06:53:31PM +0800, Brad Campbell wrote:
>> I rebooted into a netfilter kernel, and did all the steps I'd used
>> on the no-netfilter kernel and it ticked along happily.
>>
>> So the result of the experiment is inconclusive. Having said that,
>> the backtraces certainly smell networky.
>>
>> To get it to crash, I have to start IE in the VM and https to the
>> public address of the machine, which is then redirected by netfilter
>> back into another of the VM's.
>>
>> I can https directly to the other VM's address, but that does not
>> cause it to crash, however without netfilter loaded I can't bounce
>> off the public IP. It's all rather confusing really.
>>
>> What next Sherlock?
>
> I think you're hitting something I've seen. Can you try rewriting
> your firewall rules so that it does not reference any bridge
> interfaces at all. Instead, reference the real interface names
> in their place. I'm betting it wont crash.
>

Unfortunately the only interface that is mentioned by name anywhere in 
my firewall is $DMZ (which is ppp0 and not part of any bridge).

All of the nat/dnat and other horrible hacks are based on IP addresses.

WARNING: multiple messages have this Message-ID (diff)
From: Brad Campbell <lists2009@fnarfbargle.com>
To: CaT <cat@zip.com.au>
Cc: Avi Kivity <avi@redhat.com>, Hugh Dickins <hughd@google.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	linux-mm <linux-mm@kvack.org>, netdev <netdev@vger.kernel.org>
Subject: Re: KVM induced panic on 2.6.38[2367] & 2.6.39
Date: Wed, 01 Jun 2011 19:52:33 +0800	[thread overview]
Message-ID: <4DE62801.9080804@fnarfbargle.com> (raw)
In-Reply-To: <20110601111841.GB3956@zip.com.au>

On 01/06/11 19:18, CaT wrote:
> On Wed, Jun 01, 2011 at 06:53:31PM +0800, Brad Campbell wrote:
>> I rebooted into a netfilter kernel, and did all the steps I'd used
>> on the no-netfilter kernel and it ticked along happily.
>>
>> So the result of the experiment is inconclusive. Having said that,
>> the backtraces certainly smell networky.
>>
>> To get it to crash, I have to start IE in the VM and https to the
>> public address of the machine, which is then redirected by netfilter
>> back into another of the VM's.
>>
>> I can https directly to the other VM's address, but that does not
>> cause it to crash, however without netfilter loaded I can't bounce
>> off the public IP. It's all rather confusing really.
>>
>> What next Sherlock?
>
> I think you're hitting something I've seen. Can you try rewriting
> your firewall rules so that it does not reference any bridge
> interfaces at all. Instead, reference the real interface names
> in their place. I'm betting it wont crash.
>

Unfortunately the only interface that is mentioned by name anywhere in 
my firewall is $DMZ (which is ppp0 and not part of any bridge).

All of the nat/dnat and other horrible hacks are based on IP addresses.

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  reply	other threads:[~2011-06-01 11:52 UTC|newest]

Thread overview: 111+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-31  1:24 KVM induced panic on 2.6.38[2367] & 2.6.39 Brad Campbell
2011-05-31  5:47 ` Borislav Petkov
2011-05-31  5:47   ` Borislav Petkov
2011-05-31  9:26   ` Brad Campbell
2011-05-31  9:26     ` Brad Campbell
2011-05-31 10:38     ` Borislav Petkov
2011-05-31 10:38       ` Borislav Petkov
2011-05-31 14:24       ` Brad Campbell
2011-05-31 14:24         ` Brad Campbell
2011-05-31 14:24         ` Brad Campbell
2011-05-31 22:31         ` Hugh Dickins
2011-05-31 22:31           ` Hugh Dickins
2011-06-01  0:18           ` Brad Campbell
2011-06-01  0:18             ` Brad Campbell
2011-06-01  0:37           ` Brad Campbell
2011-06-01  0:37             ` Brad Campbell
2011-06-01  1:15             ` Andrea Arcangeli
2011-06-01  1:15               ` Andrea Arcangeli
2011-06-01  2:03               ` Brad Campbell
2011-06-01  2:03                 ` Brad Campbell
2011-06-01  4:52               ` Hugh Dickins
2011-06-01  4:52                 ` Hugh Dickins
2011-06-01  6:31                 ` Brad Campbell
2011-06-01  6:31                   ` Brad Campbell
2011-06-01  6:56                   ` Avi Kivity
2011-06-01  6:56                     ` Avi Kivity
2011-06-01  9:29                     ` Brad Campbell
2011-06-01  9:29                       ` Brad Campbell
2011-06-01  9:29                       ` Brad Campbell
2011-06-01  9:40                       ` Avi Kivity
2011-06-01  9:40                         ` Avi Kivity
2011-06-01  9:41                         ` Avi Kivity
2011-06-01  9:41                           ` Avi Kivity
2011-06-01 10:53                           ` Brad Campbell
2011-06-01 10:53                             ` Brad Campbell
2011-06-01 11:09                             ` Avi Kivity
2011-06-01 11:09                               ` Avi Kivity
2011-06-01 11:18                             ` CaT
2011-06-01 11:18                               ` CaT
2011-06-01 11:52                               ` Brad Campbell [this message]
2011-06-01 11:52                                 ` Brad Campbell
2011-06-01 23:03                                 ` CaT
2011-06-01 23:03                                   ` CaT
2011-06-03 13:38                                   ` Brad Campbell
2011-06-03 13:38                                     ` Brad Campbell
2011-06-03 15:50                                     ` Bernhard Held
2011-06-03 15:50                                       ` Bernhard Held
2011-06-03 15:50                                       ` Bernhard Held
2011-06-03 16:07                                       ` Brad Campbell
2011-06-03 16:07                                         ` Brad Campbell
2011-06-06 20:10                                         ` Bart De Schuymer
2011-06-06 20:10                                           ` Bart De Schuymer
2011-06-06 20:23                                           ` Eric Dumazet
2011-06-06 20:23                                             ` Eric Dumazet
2011-06-06 20:23                                             ` Eric Dumazet
2011-06-07  3:33                                           ` Brad Campbell
2011-06-07  3:33                                             ` Brad Campbell
2011-06-07 13:30                                             ` Patrick McHardy
2011-06-07 13:30                                               ` Patrick McHardy
2011-06-07 14:40                                               ` Brad Campbell
2011-06-07 14:40                                                 ` Brad Campbell
2011-06-07 15:35                                                 ` Patrick McHardy
2011-06-07 15:35                                                   ` Patrick McHardy
2011-06-07 18:31                                                   ` Eric Dumazet
2011-06-07 18:31                                                     ` Eric Dumazet
2011-06-07 18:31                                                     ` Eric Dumazet
2011-06-07 22:57                                                     ` Patrick McHardy
2011-06-07 22:57                                                       ` Patrick McHardy
2011-06-07 22:57                                                       ` Patrick McHardy
2011-06-08  0:18                                                       ` Brad Campbell
2011-06-08  0:18                                                         ` Brad Campbell
2011-06-08  0:18                                                         ` Brad Campbell
2011-06-08  3:59                                                         ` Eric Dumazet
2011-06-08  3:59                                                           ` Eric Dumazet
2011-06-08  3:59                                                           ` Eric Dumazet
2011-06-08 17:02                                                           ` Brad Campbell
2011-06-08 17:02                                                             ` Brad Campbell
2011-06-08 17:02                                                             ` Brad Campbell
2011-06-08 21:22                                                             ` Eric Dumazet
2011-06-08 21:22                                                               ` Eric Dumazet
2011-06-08 21:22                                                               ` Eric Dumazet
2011-06-10  2:52                                                             ` Simon Horman
2011-06-10  2:52                                                               ` Simon Horman
2011-06-10 12:37                                                               ` Mark Lord
2011-06-10 12:37                                                                 ` Mark Lord
2011-06-10 16:43                                                                 ` Henrique de Moraes Holschuh
2011-06-10 16:43                                                                   ` Henrique de Moraes Holschuh
2011-06-12 15:38                                                               ` Avi Kivity
2011-06-12 15:38                                                                 ` Avi Kivity
2011-06-07 23:43                                                   ` Brad Campbell
2011-06-07 23:43                                                     ` Brad Campbell
2011-06-07 18:04                                                 ` Bart De Schuymer
2011-06-07 18:04                                                   ` Bart De Schuymer
2011-06-08  0:15                                                   ` Brad Campbell
2011-06-08  0:15                                                     ` Brad Campbell
2011-06-05  8:14                                     ` Avi Kivity
2011-06-05  8:14                                       ` Avi Kivity
2011-06-05 13:45                                       ` Brad Campbell
2011-06-05 13:45                                         ` Brad Campbell
2011-06-05 13:58                                         ` Avi Kivity
2011-06-05 13:58                                           ` Avi Kivity
2011-06-06 20:22                                         ` Eric Dumazet
2011-06-06 20:22                                           ` Eric Dumazet
2011-06-06 20:22                                           ` Eric Dumazet
2011-06-07 13:27                                           ` Brad Campbell
2011-06-07 13:37                                             ` Eric Dumazet
2011-06-07 15:15                                               ` Brad Campbell
2011-08-20 13:16                                               ` Brad Campbell
2011-08-22  6:36                                                 ` Avi Kivity
2011-08-22  6:45                                                   ` Eric Dumazet
2011-08-22 11:45                                                     ` Brad Campbell

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