Kernel panic on FreeBSD 9.0-beta2

[dave jones]

2011/9/29 Mikolaj Golub :
>
> On Mon, 26 Sep 2011 16:12:55 +0200 K. Macy wrote:
>
>  KM> Sorry, didn't look at the images (limited bw), I've seen something
>  KM> like this before in timewait. This "can't happen" with UDP so will be
>  KM> interested in learning more about the bug.
>
> The panic can be easily triggered by this:
>
>
>
> The other thread at that moment is in soclose->sofree->upd_detach->in_pcbfree.
>
> It looks for me that we should call in_pcbdrop() in udp_close() to remove
> inpcb from hashed lists, like it is done for tcp_close().
>
> With this patch I don't observe the panic.

Hi Mikolaj,

You rock! Machines have been running hours without panic after
applying your patch.
You should commit the atch asap :-) Thank you for your help!

Best regards,
Dave.