Stalling scp transfers with my BCM431

[Baybal Ni]

Does anything other stall?

On 15 June 2010 18:55, Dennis Nezic <dennisn at 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? :\
>
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