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Miniupnpd crashes my whole firewall

 
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goldfingerz



Joined: 20 Nov 2009
Posts: 3

PostPosted: Fri Nov 20, 2009 8:03 pm    Post subject: Miniupnpd crashes my whole firewall Reply with quote

Hello everyone,

I've recently made changes to my firewall where I've configured some vlan interfaces. Ever since I've done that, everytime I pkill miniupnpd, my whole firewall crashes and needs to be rebooted.

I've tried several different setups and combinations, and they all give the same results.

Here's what I've tried:

OpenBSD 4.5 with pf and miniupnp 1.4 => crashes when a vlan interface exist and I pkill miniupnpd.

OpenBSD 4.5 with pf and miniupnp 1.3 => crashes when a vlan interface exist and I pkill miniupnpd.

OpenBSD 4.4 with pf and miniupnp 1.4 => crashes when a vlan interface exist and I pkill miniupnpd.

OpenBSD 4.4 with pf and miniupnp 1.3 => crashes when a vlan interface exist and I pkill miniupnpd.

OpenBSD 4.4 with pf and miniupnp 1.2 => crashes when a vlan interface exist and I pkill miniupnpd.

In all these setups, if I don't create any vlan interfaces, I'm able to cleanly pkill miniupnpd. So this means, once I create a vlan interface, and then start miniupnpd, there's no way for me to make changes to the /etc/miniupnpd.conf file and restarting miniupnpd.

Anybody have any idea why this is happening?

Thanks
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miniupnp
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Joined: 14 Apr 2007
Posts: 1497

PostPosted: Sat Nov 21, 2009 4:06 pm    Post subject: Reply with quote

that is strange that miniupnpd is able to crash your whole machine.
is there any kernel debug message or anything ?
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goldfingerz



Joined: 20 Nov 2009
Posts: 3

PostPosted: Sat Nov 21, 2009 10:31 pm    Post subject: Reply with quote

Yes there is, but currently the server reboots on panic. I'll set ddb to not reboot on monday and let you know what I get.
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goldfingerz



Joined: 20 Nov 2009
Posts: 3

PostPosted: Thu Dec 03, 2009 7:11 pm    Post subject: Reply with quote

Sorry for the late response, but I've been doing several test. So far I haven't been able to crash my system using OpenBSD's generic kernel (4.5 and 4.6).

In my situation, I've been running a modified kernel that I created so I could stuff a ramdisk inside the kernel (for using it as a livecd). Even my modifications are minor, the combination of this modified kernel, vlans and miniupnpd just doesn't work.

In case you're interested the kernel panic message I got was this:

Code:
UVM_fault (0xd8ba78d4, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at igmp_leavegroup+0x2a: testb $0x8, 0x5c (%eax)
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