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Date:      Tue, 27 Sep 2011 13:50:54 +0800
From:      dave jones <s.dave.jones@gmail.com>
To:        Arnaud Lacombe <lacombar@gmail.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: Kernel panic on FreeBSD 9.0-beta2
Message-ID:  <CANf5e8Z=t2xuVou4jnADdR8_iHBa8GLNgY-wd1yH=15AY66yRg@mail.gmail.com>
In-Reply-To: <CACqU3MVKunQAZj2q1ng2po451vnLMzbp2aTYcZdFpm8h2Hop_A@mail.gmail.com>
References:  <CANf5e8aG4go4M_vsRExUsJB_sjaN5x-QK-TCDAhSH64JSo0mdQ@mail.gmail.com> <CACqU3MXStMMEoppvDtZS6hV4WGttbdJiF8E-ORwJ%2BQSmnTy-Yg@mail.gmail.com> <CACqU3MV-t4Va6VWUoXy1Y9FYnNJTUw1X%2BE7ik-2%2BtMVuVOV3RA@mail.gmail.com> <CANf5e8bbaRU5_GFX4d4E_wouzdx8Bmf7NjvR1_1EeeW=K0irvA@mail.gmail.com> <CACqU3MVKunQAZj2q1ng2po451vnLMzbp2aTYcZdFpm8h2Hop_A@mail.gmail.com>

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On Tue, Sep 27, 2011 at 9:24 AM, Arnaud Lacombe wrote:
> Hi,
>
> On Mon, Sep 26, 2011 at 8:51 PM, dave jones <s.dave.jones@gmail.com> wrot=
e:
>> 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:
>>>
>>> =A0/*
>>> =A0 * XXX
>>> =A0 * This entire block sorely needs a rewrite.
>>> =A0 */
>>> =A0 =A0 =A0 =A0if (t &&
>>> =A0 =A0 =A0 =A0 =A0 =A0((t->inp_flags & INP_TIMEWAIT) =3D=3D 0) &&
>>> =A0 =A0 =A0 =A0 =A0 =A0(so->so_type !=3D SOCK_STREAM ||
>>> =A0 =A0 =A0 =A0 =A0 =A0 ntohl(t->inp_faddr.s_addr) =3D=3D INADDR_ANY) &=
&
>>> =A0 =A0 =A0 =A0 =A0 =A0(ntohl(sin->sin_addr.s_addr) !=3D INADDR_ANY ||
>>> =A0 =A0 =A0 =A0 =A0 =A0 ntohl(t->inp_laddr.s_addr) !=3D INADDR_ANY ||
>>> =A0 =A0 =A0 =A0 =A0 =A0 (t->inp_socket->so_options &
>>> =A0 =A0 =A0 =A0 =A0 SO_REUSEPORT) =3D=3D 0) &&
>>> =A0 =A0 =A0 =A0 =A0 =A0(inp->inp_cred->cr_uid !=3D
>>> =A0 =A0 =A0 =A0 =A0 =A0 t->inp_cred->cr_uid))
>>> =A0 =A0 =A0 =A0 =A0return (EADDRINUSE);
>>> =A0 =A0 =A0}
>>>
>>> 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 i=
ssue?
>> 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 ?

Hi Arnaud,

Sorry for the confusion. It's not crashed at boot-time and named(9) used to
create a caching-only name server and it worked on FreeBSD <=3D 8.2 for yea=
rs.
I've been using named from the base system.
When I switched to 9.0-beta2, it got panic after running three days *sigh*

> Thanks,
> =A0- Arnaud

BR,
Dave.



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