Kernel panic on FreeBSD 9.0-beta2

[Arnaud Lacombe]

Hi,

On Mon, Sep 26, 2011 at 8:51 PM, dave jones <s.dave.jones at gmail.com> wrote:
> On Mon, Sep 26, 2011 at 1:41 PM, Arnaud Lacombe wrote:
>> Hi,
>>
>> On Mon, Sep 26, 2011 at 1:12 AM, Arnaud Lacombe wrote:
>>> Hi,
>>>
>>> On Mon, Sep 26, 2011 at 12:43 AM, dave jones wrote:
>>>> Hi,
>>>> I have two production machines running on freebsd 9.0-beta2 and both got
>>>> kernel panic related to networking. Any idea how to solve it? thanks.
>>>>
>>>> http://http://60.248.161.9/p1.jpg
>>>> http://http://60.248.161.9/p2.jpg
>>>>
>>> this host is really slow :-)
>>>
>>> To avoid the waiting time, the backtrace is:
>>>
>>> in_pcbbind_setup()+0x28f
>>> in_pcbbind()+0xa9
>>> udp_bind()
>>> bind()
>>> kern_bind()
>>> syscall_enter()
>>> syscall()
>>>
>>> faulted at VA 0x07. Origin process in named.
>>>
>> AFAICT, the crash happens in the following block:
>>
>>  /*
>>   * XXX
>>   * This entire block sorely needs a rewrite.
>>   */
>>        if (t &&
>>            ((t->inp_flags & INP_TIMEWAIT) == 0) &&
>>            (so->so_type != SOCK_STREAM ||
>>             ntohl(t->inp_faddr.s_addr) == INADDR_ANY) &&
>>            (ntohl(sin->sin_addr.s_addr) != INADDR_ANY ||
>>             ntohl(t->inp_laddr.s_addr) != INADDR_ANY ||
>>             (t->inp_socket->so_options &
>>           SO_REUSEPORT) == 0) &&
>>            (inp->inp_cred->cr_uid !=
>>             t->inp_cred->cr_uid))
>>          return (EADDRINUSE);
>>      }
>>
>> more specifically, `t->inp_socket' is NULL. The top comment may not be
>> relevant, as it's been here for the past 8 years.
>
> Hi Arnaud,
>
> Ah, thanks for the info. I'm wondering if you have a patch to fix that issue?
> Guess what? another production machine got the same panic, oh my~
Can you give us more precision on the condition of the crash ? is it
immediately at boot-time ? If not, is it when a special network
condition occurs ? What kind of load is named(9) having on average
before the panic ? Are you using any fancy configuration or thing out
of the ordinary ? Are you using named from the base system, or from
port ?

Thanks,
 - Arnaud