From: Michael Leun <lkml20120218@newton.leun.net>
To: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: ath9k_htc: Every 2nd packet 1000ms delayed in recent kernels
Date: Tue, 19 Jun 2012 08:51:37 +0200 [thread overview]
Message-ID: <20120619085137.337838c0@xenia.leun.net> (raw)
Hi,
ne-wlan1@elektra:/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
next reply other threads:[~2012-06-19 7:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-19 6:51 Michael Leun [this message]
2012-06-19 9:41 ` ath9k_htc: Every 2nd packet 1000ms delayed in recent kernels Mohammed Shafi
2012-06-19 22:33 ` Michael Leun
2012-06-20 6:13 ` Rajkumar Manoharan
2012-06-20 6:15 ` Michael Leun
2012-06-20 6:20 ` Rajkumar Manoharan
2012-06-20 6:55 ` Michael Leun
2012-06-20 7:12 ` Rajkumar Manoharan
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