From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dennis Nezic Date: Tue, 15 Jun 2010 21:55:08 -0400 Subject: Stalling scp transfers with my BCM431 Message-ID: <20100615215508.ef356d10.dennisn@dennisn.dyndns.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: b43-dev@lists.infradead.org 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? :\