Hi Jouni, > > so I finally got the debug output for you. Took only over a day :) > > Thanks! Would you happen to have timing information available for these > (e.g., from klogd)? It looks like the AP is sending out an ADDBA Request > to update some parameters, but we currently ignore that request. > However, at least in this particular case, our RX reorder bug head_seq > matches with the ssn from the ADDBA Request, so I'm not sure whether > ignoring the ADDBA contents is really causing harm here (anyway, we > should really process these updates, too). > > The timeouts on RX reorder frames look similar to what I have seen in my > tests and the workaround was indeed trying to address that type of > issue, so it is nice to hear that it helped in this case, too. so I enabled timing information for dmesg and got another report. It is not exactly the same and I don't know how and why it happened. [ 249.579036] phy0: AddBA: ssn=50, dialog_token=1 tid=0 timeout=0ba_policy=1 [ 249.579046] addba: d0 00 40 01 00 16 eb 05 46 5c 00 1c f0 62 88 5b [ 249.579052] addba: 00 1c f0 62 88 5b 30 8f 03 00 01 02 10 00 00 20 [ 249.579057] addba: 03 [ 249.579073] Rx A-MPDU request on tid 0 result 0 [ 250.572022] phy0: AddBA: ssn=178, dialog_token=2 tid=0 timeout=0ba_policy=1 [ 250.572032] addba: d0 00 40 01 00 16 eb 05 46 5c 00 1c f0 62 88 5b [ 250.572038] addba: 00 1c f0 62 88 5b e0 8f 03 00 02 02 10 00 00 20 [ 250.572042] addba: 0b [ 250.572048] phy0: RX reorder buf: head_seq=178 ssn=50 buf_size=64 stored_mpdu_num=0 timeout=0 index=0; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [ 250.572108] unexpected AddBA Req from 00:1c:f0:xx:xx:xx on tid 0 [ 266.263651] Open BA session requested for 00:1c:f0:xx:xx:xx tid 0 [ 266.263659] iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:1c:f0:xx:xx:xx tid = 0 [ 266.263726] activated addBA response timer on tid 0 [ 266.265534] wrong addBA response token, tid 0 [ 267.263467] addBA response timer expired on tid 0 [ 267.263516] Stopping Tx BA session for 00:1c:f0:xx:xx:xx tid 0 [ 326.083081] Open BA session requested for 00:1c:f0:xx:xx:xx tid 0 [ 326.083097] iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:1c:f0:xx:xx:xx tid = 0 [ 326.083197] activated addBA response timer on tid 0 [ 326.088517] wrong addBA response token, tid 0 [ 327.080206] addBA response timer expired on tid 0 [ 327.080262] Stopping Tx BA session for 00:1c:f0:xx:xx:xx tid 0 This kernel is running latest wireless-testing.git with debug patch and the disassoc change (for testing) from Johannes. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
