Subject: Re: kern/36097: http fetch stall in networking code
To: None <gnats-bugs@NetBSD.org>
From: Liam J. Foy <liamfoy@sepulcrum.org>
List: netbsd-bugs
Date: 03/30/2007 17:46:14
On 30 Mar 2007, at 17:40, Quentin Garnier wrote:

> The following reply was made to PR kern/36097; it has been noted by  
> GNATS.
>
> From: Quentin Garnier <cube@cubidou.net>
> To: "Liam J. Foy" <liamfoy@sepulcrum.org>
> Cc: gnats-bugs@NetBSD.org
> Subject: Re: kern/36097: http fetch stall in networking code
> Date: Fri, 30 Mar 2007 18:38:55 +0200
>
>  --uaVifq136IIwehrE
>  Content-Type: text/plain; charset=us-ascii
>  Content-Disposition: inline
>  Content-Transfer-Encoding: quoted-printable
>
>  On Fri, Mar 30, 2007 at 05:36:05PM +0100, Liam J. Foy wrote:
>> =20
>> On 30 Mar 2007, at 16:55, Tim Rightnour wrote:
>> =20
>>> The following reply was made to PR kern/36097; it has been noted  
>>> by =20
>>> GNATS.
>>>
>>> From: Tim Rightnour <root@garbled.net>
>>> To: gnats-bugs@NetBSD.org
>>> Cc: netbsd-bugs@netbsd.org, gnats-admin@netbsd.org,
>>> 	kern-bug-people@netbsd.org
>>> Subject: Re: kern/36097: http fetch stall in networking code
>>> Date: Fri, 30 Mar 2007 08:50:23 -0700 (MST)
>>>
>>> On 30-Mar-2007 YAMAMOTO Takashi wrote:
>>>> i guess it's failing to transmit any packets with sack, or =20
>>>> something like
>>>> that.
>>>> are you using any hw offloading?
>>>
>>> I've tested this on 4.0/i386 with a vr0 (no hardware offload that  
>>> =20
>>> I know of),
>>> and 4.0/prep with an fxp0 with cpusaver turned on.  Both acted =20
>>> identically.
>>>
>>> At the time this was reported, a number of other people also =20
>>> verified the same
>>> behavior on thier 4.0 machines.
>>>
>> =20
>> You say this is fixed in current - we just need to find out who  
>> may have
>> fixed this on purpose or by accident. Anyone know :-)?
>
>  Actually, it doesn't seem to be fixed in -current;  it doesn't  
> fail all
>  the time:  if you manage not to lose a signle packet, it will go
>  through.
>
>  Also, it is not related to SACK (I had it turned off for my own
>  experiments).
>
>  Quentin Garnier - cube@cubidou.net - cube@NetBSD.org
>  "You could have made it, spitting out benchmarks
>  Owe it to yourself not to fail"
>  Amplifico, Spitting Out Benchmarks, Hometakes Vol. 2, 2005.

Ah - I just assumed that if he said it had been fixed on current it
had been - I dont have access to my machines at this moment.

I'll try to have a look at it tomorrow.

		---
		Liam J. Foy
		<liamjfoy@netbsd.org>