linux-kernel - Re: 2.6.25-rc2 regression in rt61pci wireless driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 26 Feb 2008 21:13:48 +0000
From:	"Chris Clayton" <chris2553@...glemail.com>
To:	linville@...driver.com
Cc:	ivdoorn@...il.com, linux-kernel@...r.kernel.org,
	linux-wireless@...r.kernel.org, stefano.brivio@...imi.it,
	johannes@...solutions.net
Subject: Re: 2.6.25-rc2 regression in rt61pci wireless driver

On 26/02/2008, John W. Linville <linville@...driver.com> wrote:
> On Tue, Feb 26, 2008 at 07:11:39PM +0000, Chris Clayton wrote:
>
>  > Sorry, but that's not the case. I find the same results as without the
>  > patches. With the parameter set to 'pid', the network connection fails very
>  > quickly, but with it set to 'simple' I can ping and ftp files to and from my
>  > laptop as much as I like and the connection stays up. In fact, if anything
>  > the patches seem to have made the network even more fragile, in that it fails
>  > almost instantly once I start some network activity ( < 10 pings).
>  >
>  > I'm sure this is not the hardware - it works perfectly with Windows XP, with
>  > 2.6.23.14 plus the out-of-tree rt61 driver from serialmonkey, with the
>  > in-tree driver from 2.6.24.x and with 2.6.25-rc3 with the mac82011's
>  > ieee80211_default_rc_algo parameter set to 'simple'.
>
>
> At last!  Vindication for insisting that we keep 'simple' around!
>  Bwahahaha! :-)
>

It's nice to be able to make someone happy :-)

>  So, am I to understand that 'pid' works find for you with rtl8180?

Yes John, using the rtl8180 driver I get reliable network performance
with either 'pid' or 'simple'. With the rt61pci driver, I find that
'simple' provides a reliable network, but 'pid' simply does not work.
So keeping 'simple' around gets my vote too.

>  If so, then I wonder if Stefano and Ivo can help us figure-out
>  what kind of problem is sensitive to both driver _and_ rate control
>  algorithm?
>

And I will help in any way I can, providing diagnostics and trying patches.

>  Thanks,
>
>  John
>
> --
>  John W. Linville
>  linville@...driver.com
>

-- 
Beauty is in the eye of the beerholder.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/