Date: Fri, 7 Sep 2012 00:14:12 GMT From: Adrian Chadd <adrian@FreeBSD.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/171394: [ath] ath0: ath_tx_aggr_comp_aggr: num frames seen=1; bf nframes=4 Message-ID: <201209070014.q870ECSV011300@red.freebsd.org> Resent-Message-ID: <201209070020.q870K1nQ019088@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 171394 >Category: kern >Synopsis: [ath] ath0: ath_tx_aggr_comp_aggr: num frames seen=1; bf nframes=4 >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 Sep 07 00:20:01 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Adrian Chadd >Release: -HEAD >Organization: >Environment: >Description: Kim has reported this appearing during normal use: Sep 4 16:42:53 foo kernel: ath0: ath_tx_aggr_comp_aggr: num frames seen=1; bf nframes=4 Sep 4 16:42:56 foo kernel: ath0: ath_tx_aggr_comp_aggr: AR5416 bug: hasba=0; txok=1, isaggr=1, seq_st=3889 Sep 4 16:42:56 foo kernel: Q1[ 0] (DS.V:0xffffff811b49a0c0 DS.P:0x1469a0c0) L:1469a120 D:17e95b5e F:0004 Sep 4 16:42:56 foo kernel: Seq: 62976 swtry: 2 ADDBAW?: 1 DOBAW?: 1 Sep 4 16:42:56 foo kernel: 407f0612 0000902c 24348000 888b8c8d 814580fd 86cc81d1 Sep 4 16:42:56 foo kernel: 08000000 0097bdef 00000000 3f000000 3f000000 3f000000 00000000 00000000 Sep 4 16:42:56 foo kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Sep 4 16:42:56 foo kernel: (DS.V:0xffffff811b49a120 DS.P:0x1469a120) L:1469a180 D:2f0b9e80 F:0004 Sep 4 16:42:56 foo kernel: Seq: 62976 swtry: 2 ADDBAW?: 1 DOBAW?: 1 Sep 4 16:42:56 foo kernel: 00000000 00001028 00000000 00000000 00000000 00000000 Sep 4 16:42:56 foo kernel: 08280000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Sep 4 16:42:56 foo kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Sep 4 16:42:56 foo kernel: (DS.V:0xffffff811b49a180 DS.P:0x1469a180) L:1468b780 D:ab29e344 F:0004 Sep 4 16:42:56 foo kernel: Seq: 62976 swtry: 2 ADDBAW?: 1 DOBAW?: 1 Sep 4 16:42:56 foo kernel: 00000000 000005b4 24348000 888b8c8d 00000000 00000000 Sep 4 16:42:56 foo kernel: 08280000 00000000 00000000 00000000 00000000 00000000 00803736 00000101 Sep 4 16:42:56 foo kernel: 007c69f9 ffffffff ffff7fff 3a803839 80808080 80808080 80808080 00001e63 Sep 4 16:42:56 foo kernel: [end] Sep 4 16:42:56 foo kernel: ath0: ath_tx_aggr_comp_aggr: num frames seen=1; bf nframes=4 Sep 4 16:42:59 foo kernel: ath0: stuck beacon; resetting (bmiss count 4) Sep 4 16:43:00 foo kernel: ath0: ath_tx_aggr_comp_aggr: AR5416 bug: hasba=0; txok=1, isaggr=1, seq_st=1591 Sep 4 16:43:00 foo kernel: Q1[ 0] (DS.V:0xffffff811b4f1940 DS.P:0x146f1940) L:146f19a0 D:2f0f045e F:0004 Sep 4 16:43:00 foo kernel: Seq: 26112 swtry: 2 ADDBAW?: 1 DOBAW?: 1 Sep 4 16:43:00 foo kernel: 407f0612 0000902c 24348000 888b8c8d 814580fd 86cc81d1 Sep 4 16:43:00 foo kernel: 08000000 0097bdef 00000000 3f000000 3f000000 3f000000 00000000 00000000 Sep 4 16:43:00 foo kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Sep 4 16:43:00 foo kernel: (DS.V:0xffffff811b4f19a0 DS.P:0x146f19a0) L:146f1a00 D:2f830d80 F:0004 Sep 4 16:43:00 foo kernel: Seq: 26112 swtry: 2 ADDBAW?: 1 DOBAW?: 1 Sep 4 16:43:00 foo kernel: 00000000 00001028 00000000 00000000 00000000 00000000 Sep 4 16:43:00 foo kernel: 08280000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Sep 4 16:43:00 foo kernel: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Sep 4 16:43:00 foo kernel: (DS.V:0xffffff811b4f1a00 DS.P:0x146f1a00) L:146da0c0 D:ad74e29c F:0004 Sep 4 16:43:00 foo kernel: Seq: 26112 swtry: 2 ADDBAW?: 1 DOBAW?: 1 Sep 4 16:43:00 foo kernel: 00000000 000005b4 24348000 888b8c8d 00000000 00000000 Sep 4 16:43:00 foo kernel: 08280000 00000000 00000000 00000000 00000000 00000000 00803737 00000001 Sep 4 16:43:00 foo kernel: 00161ae8 ffffffff fffffdff 3b80383a 80808080 80808080 80808080 00000c6f Sep 4 16:43:00 foo kernel: [end] Sep 4 16:43:00 foo kernel: ath0: ath_tx_aggr_comp_aggr: num frames seen=1; bf nframes=4 >How-To-Repeat: Use 11n in a noisy/congested environment >Fix: The problem is that the bfs_nframes and bfs_aggr frames aren't being reset after a software transmit failure. SO: * an aggregate is formed; the head ath_buf has bfs_nframes=X and bfs_aggr=1; * it fails; * the hwq is empty; * the first frame is retried via ath_tx_xmit_aggr() as a single frame; * it gets TXed successfully or not; * .. but bfs_aggr=1, so the aggr completion function is called, rather than the single-frame aggr completion function * .. and bfs_nframes != the number of buffers in that list, so things complain. >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201209070014.q870ECSV011300>