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Date: Tue, 19 Jun 2012 08:51:37 +0200 From: Michael Leun <lkml20120218@...ton.leun.net> To: linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org Subject: ath9k_htc: Every 2nd packet 1000ms delayed in recent kernels Hi, ne-wlan1@...ktra:/home/ml4> ping 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_seq=1 ttl=64 time=2010 ms 64 bytes from 192.168.2.1: icmp_seq=2 ttl=64 time=1011 ms 64 bytes from 192.168.2.1: icmp_seq=3 ttl=64 time=11.5 ms 64 bytes from 192.168.2.1: icmp_seq=4 ttl=64 time=1.12 ms 64 bytes from 192.168.2.1: icmp_seq=5 ttl=64 time=1002 ms 64 bytes from 192.168.2.1: icmp_seq=6 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_seq=7 ttl=64 time=1003 ms 64 bytes from 192.168.2.1: icmp_seq=8 ttl=64 time=4.10 ms 64 bytes from 192.168.2.1: icmp_seq=9 ttl=64 time=1003 ms 64 bytes from 192.168.2.1: icmp_seq=10 ttl=64 time=3.95 ms 64 bytes from 192.168.2.1: icmp_seq=11 ttl=64 time=1003 ms 64 bytes from 192.168.2.1: icmp_seq=12 ttl=64 time=3.78 ms Please note the additional delay of ~1000ms every 2nd packet. This is Kernel 3.4.3, have seen it in 3.4.2 also. Does NOT happen in 3.3.1. Is this Issue already known? If so, I can save the work bisecting... Happens with two different ath9k_htc cards: Bus 002 Device 012: ID 0846:9018 NetGear, Inc. WNDA3200 802.11abgn Wireless Adapter [Atheros AR7010+AR9280] Bus 002 Device 004: ID 0cf3:7015 Atheros Communications, Inc. TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287] Does NOT happen with an atk9k (mini pci express) card. -- MfG, Michael Leun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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