Bug 971102

Summary: panic on IPv6 router in pskb_expand_head
Product: [Fedora] Fedora Reporter: Felix Kaechele <felix>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 18CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, nhorman
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Last Closed: 2013-06-28 16:48:19 UTC Type: Bug
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Photo of the kernel panic trace none

Description Felix Kaechele 2013-06-05 16:59:19 UTC 
Created attachment 757279 [details]
Photo of the kernel panic trace

Description of problem:
The kernel on the router machine (running F18) panics when one of the clients in my network runs the Netalyzer (http://netalyzr.icsi.berkeley.edu/) test.


Set up is as follows:
kernel-3.9.4-200.fc18.x86_64
iptables-1.4.16.2-5.fc18.x86_64
shorewall6-4.5.16.1-1.fc18.noarch

The machine is connected via ADSL PPPoE to the Internet. A SiXXS Tunnel with static endpoint is being used for IPv6 connectivity.
The system uses shorewall/shorewall6 for the firewall.
The network card is a IBM dual-port e1000e.
Comment 1 Felix Kaechele 2013-06-06 15:42:28 UTC 
This issue seems to be netfilter related.
It only appears when shorewall6 is started.
It happens during the step "Checking the network's MTU for IPv6" in Netalyzr.
Comment 2 Neil Horman 2013-06-13 19:09:25 UTC 
can you post the backtrace please?
Comment 3 Neil Horman 2013-06-28 16:48:19 UTC 
Sorry, I missed the backtrace photo.  Looking at it I think its a dup of 892060.  I'm closing this as a dup of that.  If the problem recurs on the latest kernel, please reopen this.  Thanks!

*** This bug has been marked as a duplicate of bug 892060 ***