kern/149948: [panic] when starting net/ladvd

Vladislav V. Prodan universite at
Sun Aug 29 15:29:21 UTC 2010

I provoked a kernel panic on another machine.

panic: page fault

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Cannot access memory at address 0xffffff019dffffe0
(kgdb) #0  0x0000000000000000 in ?? ()
Cannot access memory at address 0x0

29.08.2010 16:33, vwe at wrote:
> Old Synopsis: Panic when starting  ladvd
> New Synopsis: [panic] when starting net/ladvd
> State-Changed-From-To: open->feedback
> State-Changed-By: vwe
> State-Changed-When: Sun Aug 29 13:26:03 UTC 2010
> State-Changed-Why: 
> Vladislav,
> w/o a backtrace or any other information, it's quite hard to tell where
> the problem might come from.
> Your screenshot suggests, there's a NULL pointer causing the trouble.
> Can you please try at first the following command and post us it's output:
> addr2line -e /boot/kernel/kernel.symbols 0xffffffff806aa114
> If your kernel config is near GENERIC, the problem might be in
> sys/net80211/ieee80211_node.c:2328
> Having a backtrace would make things simpler. If you're brave enough, you
> may try to get the kernel dump onto a usb thumb drive (I'm using this for
> embedded machines, where I don't have the space to store dumps).
> It works find, just take a look at dumpon(8).
> If you got a dump, please use the kernel debugger to get the backtrace.

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