Hello, By "1s freeze", I mean that all packets are dropped for a duration of 1 second. It happens at a period of 121 seconds.
I have an Asus A6Tc-AP014H laptop running Debian/Sid/x86_64. The wifi card is: 03:03.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02) The bug is in b43 driver. I tried both 2.6.24.X and 2.6.25-rc5 with old and new v4 firmware. There is no freeze with bcm43xx and v3 firmware. At the beginning, I suspected my access point so I filled a bug report at madwifi.org: http://madwifi.org/ticket/1791 I rewrite the testcase in this email: * ap$ nc -u client 2000 < /dev/zero * client$ nc -ul 2000 > /dev/null * rate: 1Mbps to maximize reliability * I read /proc/net/dev (column: Receive/bytes) every 100ms. I also attach the result to this mail: * 1 vert px = 1000 bytes * 1 horz px = 100 ms * there is a green line every second * and a red one every minute * ~ 100 ko/s almost all the time The bug is really annoying because it breaks most media streamings. Regards, JM
<<inline: testcase-1Mbps.png>>
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