wireless (ipw2200) stalls

grx · Posted: Sat Oct 07, 2006 6:23 am Post subject: wireless (ipw2200) stalls

OK, I think this is a problem I faced once before, and though I've searched and searched I can't for the life of me found the solution I worked with before.

I just re-installed my whole system, and ipw2200 works fine, gets an ip using dhcpcd, and all that. But, if I let it download something (say with wget, like portage uses), if the network is left to nothing but the download for an amount of time, the connection stops.

As an example, I'm currently watching a large download right now. In the middle of typing this, it stalled. I opened a new tab on my browser, opened a random web page, and the download started up again. Annoying at the very least!

Can anyone point me in the right direction?

using gcc 4.1.1, glibc 2.4-r3, gentoo-sources 2.6.17-r8, ipw2200-firmware 3.0, ipw2200 1.1.3

wizatdiz · n00b Joined: 20 Aug 2004 Posts: 73 Location: Florida

You sould check your dmesg as see if you have any errors. May be geting firmware restarts. Verify that you have hwcrypto off in /etc/modules.d/ipw2200:

grx · Posted: Sat Oct 07, 2006 4:27 pm Post subject:

I knew I had forgotten something! Thanks!

Edit:

Ack... I've got the line in that file now, but it still has the same problem. Maybe I need to try using the 1.2.0 driver. I'll try that next.
Anyone else have this problem?

I should mention that dmesg shows no problems in loading the module.

grx · Posted: Sat Oct 07, 2006 8:15 pm Post subject:

No, an upgrade doesn't seem to have solved the issue either.

It's really strange--it doesn't stall at all, or even slow down, as long as I'm making fairly constant use of the network with a web browser or the like. If I leave it alone at all, it slows way down (from >100K/s to ~10K/s at best) and then chokes up completely. It's really annoying, because if I need to download anything large, I have to be constantly using the internet or something to make sure it arrives in a timely manner.

Any ideas at all?

wizatdiz · n00b Joined: 20 Aug 2004 Posts: 73 Location: Florida

I do not have the same problem as you. If you post your config files, we can compare for any differences. You can compile the driver with debug on and set a debug mask to see if something comes up. Look at the readme for ipw2200 or look at the mailing list archives for debug/mask information. Other than that, no other ideas.

dsd · Posted: Wed Oct 11, 2006 1:16 am Post subject:

just for fun, try:

echo 0 > /proc/sys/net/ipv4/tcp_window_scaling
_________________
http://dev.gentoo.org/~dsd

grx · Posted: Wed Oct 11, 2006 7:03 am Post subject:

Tried it, but it doesn't seem to have much of an effect, if any.

njharris · n00b Joined: 17 Sep 2002 Posts: 13

I have a Dell 9300, and use the built-in ipw2200 wireless as well.

uname -a > Linux rockytop2 2.6.17-gentoo-r8 #1 SMP Sat Oct 7 08:07:11 EDT 2006 i686 Intel(R) Pentium(R) M processor 1.86GHz GNU/Linux

I was having the same sort of stalling problem using the in-kernel drivers, until I disabled the QoS capability.

The interface has been entirely stable since.

grx · Posted: Fri Oct 13, 2006 6:29 pm Post subject:

Could you explain how I disable that feature?

njharris · n00b Joined: 17 Sep 2002 Posts: 13