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Date:      Fri, 5 Sep 2014 14:15:15 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Garrett Cooper <yaneurabeya@gmail.com>
Cc:        "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, Mateusz Guzik <mjguzik@gmail.com>, "src-committers@freebsd.org" <src-committers@freebsd.org>, Gleb Smirnoff <glebius@freebsd.org>
Subject:   Re: svn commit: r271182 - head/sys/kern
Message-ID:  <CAJ-Vmok9T_DXH=pPt625xQ2J2qoMYckY6aKyFj8uvBsceHUiwA@mail.gmail.com>
In-Reply-To: <FF7C656B-2A15-4355-9821-7D2A29C2AF09@gmail.com>
References:  <201409051950.s85JoI3r000416@svn.freebsd.org> <20140905195410.GA722@dft-labs.eu> <FF7C656B-2A15-4355-9821-7D2A29C2AF09@gmail.com>

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I'm building a vimage kernel now to at least compile test a fix.

Thanks,


-a


On 5 September 2014 12:59, Garrett Cooper <yaneurabeya@gmail.com> wrote:
>
>> On Sep 5, 2014, at 12:54, Mateusz Guzik <mjguzik@gmail.com> wrote:
>>
>>> On Fri, Sep 05, 2014 at 07:50:18PM +0000, Gleb Smirnoff wrote:
>>> Author: glebius
>>> Date: Fri Sep  5 19:50:18 2014
>>> New Revision: 271182
>>> URL: http://svnweb.freebsd.org/changeset/base/271182
>>>
>>> Log:
>>>  Set vnet context before accessing V_socket_hhh[].
>>>
>>>  Submitted by:    "Hiroo Ono (=E5=B0=8F=E9=87=8E=E5=AF=9B=E7=94=9F)" <h=
iroo.ono+freebsd gmail.com>
>>>
>>> Modified:
>>>  head/sys/kern/uipc_socket.c
>>>
>>> Modified: head/sys/kern/uipc_socket.c
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
>>> --- head/sys/kern/uipc_socket.c    Fri Sep  5 19:00:30 2014    (r271181=
)
>>> +++ head/sys/kern/uipc_socket.c    Fri Sep  5 19:50:18 2014    (r271182=
)
>>> @@ -3265,9 +3265,11 @@ filt_soread(struct knote *kn, long hint)
>>>            return 1;
>>>    }
>>>
>>> +    CURVNET_SET(so->so_vnet);
>>>    if (V_socket_hhh[HHOOK_FILT_SOREAD]->hhh_nhooks > 0)
>>>        /* This hook returning non-zero indicates an event, not error */
>>>        return (hhook_run_socket(so, NULL, HHOOK_FILT_SOREAD));
>>> +    CURVNET_RESTORE();
>>
>> should not this be something like:
>>        error =3D hhook_run_socket(so, NULL, HHOOK_FILT_SOREAD);
>>        CURVNET_RESTORE();
>>        return (error);
>> ?
>
> Probably :/..
>
>
>>>    return (0);
>>> }
>>> @@ -3294,8 +3296,10 @@ filt_sowrite(struct knote *kn, long hint
>>>    SOCKBUF_LOCK_ASSERT(&so->so_snd);
>>>    kn->kn_data =3D sbspace(&so->so_snd);
>>>
>>> +    CURVNET_SET(so->so_vnet);
>>>    if (V_socket_hhh[HHOOK_FILT_SOWRITE]->hhh_nhooks > 0)
>>>        hhook_run_socket(so, kn, HHOOK_FILT_SOWRITE);
>>> +    CURVNET_RESTORE();
>>>
>>>    if (so->so_snd.sb_state & SBS_CANTSENDMORE) {
>>>        kn->kn_flags |=3D EV_EOF;
>>
>> --
>> Mateusz Guzik <mjguzik gmail.com>
>>
>



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