Stalling scp transfers with my BCM431

Stalling scp transfers with my BCM431

[Dennis Nezic]

My scp transfers are stalling, both to and from my server. My laptop is
using the Broadcom pcie card:

06:02.0 Network controller: Broadcom Corporation BCM4318 [AirForce One
54g] 802.11g Wireless LAN Controller (rev 02)
b43-pci-bridge 0000:06:02.0: PCI INT A -> GSI 21 (level, low) -> IRQ 9
b43-phy0: Broadcom 4318 WLAN found (core revision 9)
b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)

(To be honest, I'm not 100% where the problem is, but for completeness,
my server is running the madwifi-ng wireless driver, with the following
card:
0000:00:0b.0 Ethernet controller: Atheros Communications, Inc. AR5212
802.11abg NIC (rev 01))

The reason I suspect it's my b43 laptop is because scp transfers don't
stall with my secondary laptop. They also don't stall on my main laptop
if I wire it directly to my gigabit ethernet port.

Transfering from my laptop (b43) to my server (madwifi) seems to stall
noticeably faster than in the reverse direction -- by about a factor
of 10. Stalls also seem to occur far more frequently when there is other
activity on my wifi connection.

Here are snippets from a tcpdump -- I'm not sure if anything can be
learned from it?
http://dennisn.dyndns.org/guest/pubstuff/scp-stalls/stall-client
http://dennisn.dyndns.org/guest/pubstuff/scp-stalls/stall-server

Ideas? :\

Stalling scp transfers with my BCM431

[Baybal Ni]

Does anything other stall?

On 15 June 2010 18:55, Dennis Nezic <dennisn@dennisn.dyndns.org> wrote:
> My scp transfers are stalling, both to and from my server. My laptop is
> using the Broadcom pcie card:
>
> 06:02.0 Network controller: Broadcom Corporation BCM4318 [AirForce One
> 54g] 802.11g Wireless LAN Controller (rev 02)
> b43-pci-bridge 0000:06:02.0: PCI INT A -> GSI 21 (level, low) -> IRQ 9
> b43-phy0: Broadcom 4318 WLAN found (core revision 9)
> b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
>
> (To be honest, I'm not 100% where the problem is, but for completeness,
> my server is running the madwifi-ng wireless driver, with the following
> card:
> 0000:00:0b.0 Ethernet controller: Atheros Communications, Inc. AR5212
> 802.11abg NIC (rev 01))
>
> The reason I suspect it's my b43 laptop is because scp transfers don't
> stall with my secondary laptop. They also don't stall on my main laptop
> if I wire it directly to my gigabit ethernet port.
>
> Transfering from my laptop (b43) to my server (madwifi) seems to stall
> noticeably faster than in the reverse direction -- by about a factor
> of 10. Stalls also seem to occur far more frequently when there is other
> activity on my wifi connection.
>
> Here are snippets from a tcpdump -- I'm not sure if anything can be
> learned from it?
> http://dennisn.dyndns.org/guest/pubstuff/scp-stalls/stall-client
> http://dennisn.dyndns.org/guest/pubstuff/scp-stalls/stall-server
>
> Ideas? :\
>
> _______________________________________________
> b43-dev mailing list
> b43-dev at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/b43-dev
>

Stalling scp transfers with my BCM431

[Dennis Nezic]

Actually, since you mention it, yes :). My nfs transfers to my server
also stall, with the syslog message "nfs: server 10.0.0.1 not
responding, still trying" (... but mounting the nfs folder with the
"hard" option helps, since it retries in the background, I think.)

And I remember wget transfers from my server's http often used to fail
on large file transfers.

On Tue, 15 Jun 2010 19:19:43 -0700, Baybal Ni wrote:
> Does anything other stall?
> 
> On 15 June 2010 18:55, Dennis Nezic <dennisn@dennisn.dyndns.org>
> wrote:
> > My scp transfers are stalling, both to and from my server. My
> > laptop is using the Broadcom pcie card:
> >
> > 06:02.0 Network controller: Broadcom Corporation BCM4318 [AirForce
> > One 54g] 802.11g Wireless LAN Controller (rev 02)
> > b43-pci-bridge 0000:06:02.0: PCI INT A -> GSI 21 (level, low) ->
> > IRQ 9 b43-phy0: Broadcom 4318 WLAN found (core revision 9)
> > b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
> >
> > (To be honest, I'm not 100% where the problem is, but for
> > completeness, my server is running the madwifi-ng wireless driver,
> > with the following card:
> > 0000:00:0b.0 Ethernet controller: Atheros Communications, Inc.
> > AR5212 802.11abg NIC (rev 01))
> >
> > The reason I suspect it's my b43 laptop is because scp transfers
> > don't stall with my secondary laptop. They also don't stall on my
> > main laptop if I wire it directly to my gigabit ethernet port.
> >
> > Transfering from my laptop (b43) to my server (madwifi) seems to
> > stall noticeably faster than in the reverse direction -- by about a
> > factor of 10. Stalls also seem to occur far more frequently when
> > there is other activity on my wifi connection.
> >
> > Here are snippets from a tcpdump -- I'm not sure if anything can be
> > learned from it?
> > http://dennisn.dyndns.org/guest/pubstuff/scp-stalls/stall-client
> > http://dennisn.dyndns.org/guest/pubstuff/scp-stalls/stall-server
> >
> > Ideas? :\
> >
> > _______________________________________________
> > b43-dev mailing list
> > b43-dev at lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/b43-dev
> >