From owner-freebsd-bugs@FreeBSD.ORG Sun Jun 24 04:20:10 2012 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A5E0C106567A for ; Sun, 24 Jun 2012 04:20:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 7E6FE8FC20 for ; Sun, 24 Jun 2012 04:20:10 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q5O4KASx023464 for ; Sun, 24 Jun 2012 04:20:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q5O4KA1V023463; Sun, 24 Jun 2012 04:20:10 GMT (envelope-from gnats) Resent-Date: Sun, 24 Jun 2012 04:20:10 GMT Resent-Message-Id: <201206240420.q5O4KA1V023463@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Adrian Chadd Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 56910106566C for ; Sun, 24 Jun 2012 04:17:21 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 413098FC18 for ; Sun, 24 Jun 2012 04:17:21 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q5O4HL4A022777 for ; Sun, 24 Jun 2012 04:17:21 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id q5O4HLJo022776; Sun, 24 Jun 2012 04:17:21 GMT (envelope-from nobody) Message-Id: <201206240417.q5O4HLJo022776@red.freebsd.org> Date: Sun, 24 Jun 2012 04:17:21 GMT From: Adrian Chadd To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: misc/169362: [ath] AR5416: radar pulse PHY errors sometimes include the CRC Error bit set as well as the PHY errors X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 24 Jun 2012 04:20:10 -0000 >Number: 169362 >Category: misc >Synopsis: [ath] AR5416: radar pulse PHY errors sometimes include the CRC Error bit set as well as the PHY errors >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Jun 24 04:20:10 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Adrian Chadd >Release: 9.0-STABLE i386, with -HEAD net80211/ath >Organization: >Environment: >Description: Under repetitive pulse generation (from a USRP N200), the AR5416 starts generating PHY errors with the CRC error bit set. Here's an example RX descriptor dump with the error. The payload still contains the pulse length; it's just the "CRC" bit that's throwing things off. Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6ca60 DS.P:0x205a60) L:00205ac0 D:2e4f3800 ! Jun 23 21:02:24 marilyn kernel: 2a9bea20 00000800 00323431 00000001 Jun 23 21:02:24 marilyn kernel: 566a76ed 00000100 3722211f 80808080 80808080 80808080 00000515 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cac0 DS.P:0x205ac0) L:00205b20 D:14ea1800 Jun 23 21:02:24 marilyn kernel: 2a9bea20 00000800 00000000 00000000 Jun 23 21:02:24 marilyn kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cac0 DS.P:0x205ac0) L:00205b20 D:14ea1800 ! Jun 23 21:02:24 marilyn kernel: 2a9bea20 00000800 00323431 00000001 Jun 23 21:02:24 marilyn kernel: 566a7ebe 00000100 3720211e 80808080 80808080 80808080 00000515 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cb20 DS.P:0x205b20) L:00205b80 D:06e38000 Jun 23 21:02:24 marilyn kernel: 2a9beae0 00000800 00000000 00000000 Jun 23 21:02:24 marilyn kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cb20 DS.P:0x205b20) L:00205b80 D:06e38000 ! Jun 23 21:02:24 marilyn kernel: 2a9beae0 00000800 00313431 00000001 Jun 23 21:02:24 marilyn kernel: 566a82a5 00000100 371f211e 80808080 80808080 80808080 00000515 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cb80 DS.P:0x205b80) L:00205be0 D:13a14000 Jun 23 21:02:24 marilyn kernel: 2a9beb40 00000800 00000000 00000000 Jun 23 21:02:24 marilyn kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cb80 DS.P:0x205b80) L:00205be0 D:13a14000 ! Jun 23 21:02:24 marilyn kernel: 2a9beb40 00000800 00323431 00000001 Jun 23 21:02:24 marilyn kernel: 566a868e 00000100 371f201e 80808080 80808080 80808080 00000515 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cbe0 DS.P:0x205be0) L:00205c40 D:2a0c7000 Jun 23 21:02:24 marilyn kernel: 2a9beba0 00000800 00000000 00000000 Jun 23 21:02:24 marilyn kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cbe0 DS.P:0x205be0) L:00205c40 D:2a0c7000 ! Jun 23 21:02:24 marilyn kernel: 2a9beba0 00000800 00323432 00000001 Jun 23 21:02:24 marilyn kernel: 566a8a76 00000100 38282320 80808080 80808080 80808080 00000515 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cc40 DS.P:0x205c40) L:00205ca0 D:2aae6800 Jun 23 21:02:24 marilyn kernel: 2a9bec00 00000800 00000000 00000000 Jun 23 21:02:24 marilyn kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 23 21:02:24 marilyn kernel: R[ 0] (DS.V:0xe9d6cc40 DS.P:0x205c40) L:00205ca0 D:2aae6800 ! Jun 23 21:02:24 marilyn kernel: 2a9bec00 00000800 00323430 00000001 Jun 23 21:02:24 marilyn kernel: 566abadd 00000100 3723231f 80808080 80808080 80808080 00000515 >How-To-Repeat: * Enable radar detection on the AR5416 * Snoop radar frames * Watch radar frames under load eventually start also triggering CRC errors >Fix: Likely just a SW WAR. >Release-Note: >Audit-Trail: >Unformatted: