Date: Fri, 23 Mar 2012 21:02:40 GMT From: Adrian Chadd <adrian@FreeBSD.org> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/166357: [ath] 802.11n TX stall when the first _AND_ last frame in the BAW is in the software queue Message-ID: <201203232102.q2NL2eTW034765@red.freebsd.org> Resent-Message-ID: <201203232110.q2NLA6F5041299@freefall.freebsd.org>
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>Number: 166357 >Category: misc >Synopsis: [ath] 802.11n TX stall when the first _AND_ last frame in the BAW is in the software queue >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Mar 23 21:10:06 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Adrian Chadd >Release: 10.0-CURRENT >Organization: >Environment: mips24k (ar913x) (TP-WR1043ND) >Description: I'm seeing TX stalls after a bunch of bidirectional traffic in a lossy 802.11n environment. Every single time, I see: * the TID isn't scheduled; * The software queue for that TID has the first and last seqno in the BAW in the software queue (along with other frames here and there); * .. i _think_ the HW transmission has failed, so the frames appear again in the SWQ; * .. but it's thus not being rescheduled. I'll post further information soon. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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