Re: ath10k firmware crashes in mesh mode on QCA9880

[Benjamin Morgan]

1. Yes, this appears to happens every time a unicast packet with wpa_supplicant encryption in VHT80 mode is received. I haven't seen a successful ping-pong pair.

2. We tried with 10.2.4.70.42-2 firmware and still saw crashes.
3. We ran our experiment again with extra debugging turned on.
    Node A: 18:A6:F7:23:6E:66 | 10.230.5.41
    Node B: 18:A6:F7:26:0F:21 | 10.230.5.42

    Here is the dmesg log from Node B.

[ 5413.478170] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID

[ 5413.526014] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 31 value 1
[ 5413.526193] ath10k_pci 0000:01:00.0: mac vdev 0 set keyidx 1
[ 5413.526216] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 31 value 1

[ 5413.533099] ath10k_pci 0000:01:00.0: WMI_VDEV_START_RESP_EVENTID
[ 5413.533148] ath10k_pci 0000:01:00.0: mac vdev_id 0 txpower 23
[ 5413.533163] ath10k_pci 0000:01:00.0: mac txpower 23
[ 5413.533180] ath10k_pci 0000:01:00.0: wmi pdev set param 3 value 46
[ 5413.533247] ath10k_pci 0000:01:00.0: wmi pdev set param 4 value 46

[ 5413.533412] ath10k_pci 0000:01:00.0: mac monitor vdev 1 created

[ 5413.937652] ath10k_pci 0000:01:00.0: wmi event debug mesg len 152
[ 5413.978273] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5414.478363] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5414.527015] ath10k_pci 0000:01:00.0: WMI_VDEV_START_RESP_EVENTID

[ 5414.527121] ath10k_pci 0000:01:00.0: mac monitor vdev 1 started
[ 5414.527165] ath10k_pci 0000:01:00.0: mac monitor started

[ 5414.527262] ath10k_pci 0000:01:00.0: mac vdev 0 beacon_interval 1000

[ 5414.527294] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[ 5414.527314] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[ 5414.527330] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[ 5414.527501] ath10k_pci 0000:01:00.0: mac vdev 0 up
[ 5414.527564] ath10k_pci 0000:01:00.0: WMI_TBTTOFFSET_UPDATE_EVENTID

[ 5414.978454] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5415.478548] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5415.978649] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID

[ 5416.478761] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5416.978879] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5417.478985] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5417.979081] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5418.479190] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5418.979301] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5419.479403] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5419.979551] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5420.479643] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5420.979746] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5421.479841] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5421.979940] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5422.480288] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5422.980386] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5423.480490] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5423.980600] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5424.480702] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID

[ 5424.975134] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[ 5424.975219] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[ 5424.975238] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2
[ 5424.980787] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5425.204468] ath10k_pci 0000:01:00.0: mac sta 18:a6:f7:23:6e:66 associated

[ 5425.204548] ath10k_pci 0000:01:00.0: mac peer 18:a6:f7:23:6e:66 qos 1

[ 5425.209848] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 31 value 1

[ 5425.210221] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[ 5425.210296] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[ 5425.210315] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2
[ 5425.480863] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5425.938619] ath10k_pci 0000:01:00.0: wmi event debug mesg len 100
[ 5425.980946] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID

[ 5426.481030] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5426.981117] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5427.481206] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5427.981294] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5428.481628] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5428.981718] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5429.481812] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5429.981894] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5430.481985] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5430.982073] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5431.482174] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5431.982505] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5432.482597] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5432.982679] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5433.482765] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5433.982857] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5434.482946] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5434.983008] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5435.483100] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5435.983181] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5436.483276] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5436.983366] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5437.483445] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5437.983516] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5438.483607] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[ 5438.983692] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID

[ 5439.500918] ath10k_pci 0000:01:00.0: firmware register dump:

[ 5439.726818] ieee80211 phy0: Hardware restart was requested
[ 5439.732433] ath10k_pci 0000:01:00.0: wmi mgmt vdev down id 0x1
[ 5439.732461] ath10k_pci 0000:01:00.0: wmi vdev stop id 0x1

[ 5439.740370] ath10k_pci 0000:01:00.0: mac monitor vdev 1 stopped
[ 5439.740386] ath10k_pci 0000:01:00.0: failed to stop monitor vdev: -143
[ 5439.747042] ath10k_pci 0000:01:00.0: wmi disable pktlog



But when a peer connects it seems to think the peer is in HT40 mode:


Compared to no encryption case - this log was taken from Node A:


[   24.881335] ath10k_pci 0000:01:00.0: WMI_VDEV_START_RESP_EVENTID
[   24.881423] ath10k_pci 0000:01:00.0: mac vdev_id 0 txpower 23
[   24.881438] ath10k_pci 0000:01:00.0: mac txpower 23
[   24.881454] ath10k_pci 0000:01:00.0: wmi pdev set param 3 value 46
[   24.881491] ath10k_pci 0000:01:00.0: wmi pdev set param 4 value 46

[   24.881689] ath10k_pci 0000:01:00.0: mac monitor vdev 1 created

[   25.273460] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[   25.730570] ath10k_pci 0000:01:00.0: wmi event debug mesg len 300
[   25.773566] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[   25.874556] ath10k_pci 0000:01:00.0: WMI_VDEV_START_RESP_EVENTID

[   25.880077] ath10k_pci 0000:01:00.0: mac monitor vdev 1 started
[   25.880093] ath10k_pci 0000:01:00.0: mac monitor started

[   25.880184] ath10k_pci 0000:01:00.0: mac vdev 0 beacon_interval 1000

[   25.880215] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   25.880235] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   25.880250] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[   25.881035] ath10k_pci 0000:01:00.0: mac vdev 0 up
[   25.881097] ath10k_pci 0000:01:00.0: WMI_TBTTOFFSET_UPDATE_EVENTID
[   25.882968] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

[   25.928821] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   25.928866] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   25.928883] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[   25.941911] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   25.941955] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   25.941972] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[   25.953753] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   25.953798] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   25.953817] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[   25.970614] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   25.970659] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   25.970676] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[   25.989081] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   25.989126] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   25.989143] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2

[   26.071952] ath10k_pci 0000:01:00.0: mac sta 18:a6:f7:26:0f:21 associated

[   26.072013] ath10k_pci 0000:01:00.0: mac peer 18:a6:f7:26:0f:21 qos 1

[   26.074609] ath10k_pci 0000:01:00.0: wmi pdev set param 7 value 0
[   26.074682] ath10k_pci 0000:01:00.0: mac vdev 0 dtim_period 2
[   26.074701] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 13 value 2
[   26.074760] ath10k_pci 0000:01:00.0: mac vdev 0 slot_time 2
[   26.074779] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 7 value 2
[   26.273652] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID
[   26.730650] ath10k_pci 0000:01:00.0: wmi event debug mesg len 44
[   26.773733] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID

[   27.273810] ath10k_pci 0000:01:00.0: WMI_UPDATE_STATS_EVENTID





Thank you for looking into this!

~Benjamin

On 12/05/2016 11:24 AM, Nagarajan, Ashok Raj wrote:

The ping command we used was run on Node A was 'ping -s 1500 -i 0.1 10.230.5.42' [ 5413.503954] ath10k_pci 0000:01:00.0: scan event bss channel type 4 reason 3 freq 5825 req_id 40961 scan_id 40960 vdev_id 0 state running (2) [ 5413.503985] ath10k_pci 0000:01:00.0: chan info err_code 0 freq 5825 cmd_flags 1 noise_floor -105 rx_clear_count 7692807 cycle_count 312271423 [ 5413.504029] ath10k_pci 0000:01:00.0: scan event completed type 2 reason 0 freq 5825 req_id 40961 scan_id 40960 vdev_id 0 state running (2) [ 5413.525868] ath10k_pci 0000:01:00.0: wmi vdev install key idx 1 cipher 4 len 16 [ 5413.526532] ath10k_pci 0000:01:00.0: mac chanctx add freq 5180 width 3 ptr 86db29b0 [ 5413.526556] ath10k_pci 0000:01:00.0: mac monitor recalc started? 0 needed? 0 allowed? 1 [ 5413.526574] ath10k_pci 0000:01:00.0: mac chanctx assign ptr 86db29b0 vdev_id 0 [ 5413.526592] ath10k_pci 0000:01:00.0: mac vdev 0 start center_freq 5180 phymode 11ac-vht80 [ 5413.526616] ath10k_pci 0000:01:00.0: wmi vdev start id 0x0 flags: 0x0, freq 5180, mode 10, ch_flags: 0xA000000, max_power: 46 [ 5413.533295] ath10k_pci 0000:01:00.0: mac chanctx change freq 5180 width 3 ptr 86db29b0 changed 10 [ 5413.533318] ath10k_pci 0000:01:00.0: mac chanctx change freq 5180 width 3 ptr 86db29b0 changed 2 [ 5413.533337] ath10k_pci 0000:01:00.0: mac monitor recalc started? 0 needed? 1 allowed? 1 [ 5413.533357] ath10k_pci 0000:01:00.0: WMI vdev create: id 1 type 4 subtype 0 macaddr 18:a6:f7:26:0f:21 [ 5413.533463] ath10k_pci 0000:01:00.0: wmi vdev start id 0x1 flags: 0x0, freq 5180, mode 10, ch_flags: 0xA000000, max_power: 46 [ 5414.527067] ath10k_pci 0000:01:00.0: wmi mgmt vdev up id 0x1 assoc id 0 bssid 18:a6:f7:26:0f:21 [ 5414.527216] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 3 value 1000 [ 5414.527278] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 5414.527457] ath10k_pci 0000:01:00.0: wmi mgmt vdev up id 0x0 assoc id 0 bssid 00:00:00:00:00:00 [ 5414.541090] ath10k_pci 0000:01:00.0: mac monitor recalc started? 1 needed? 1 allowed? 1 [ 5416.445280] ath10k_pci 0000:01:00.0: mac monitor recalc started? 1 needed? 1 allowed? 1 [ 5424.971969] ath10k_pci 0000:01:00.0: mac vdev 0 peer create 18:a6:f7:23:6e:66 (new sta) sta 1 / 128 peer 2 / 144 [ 5424.972000] ath10k_pci 0000:01:00.0: wmi peer create vdev_id 0 peer_addr 18:a6:f7:23:6e:66 [ 5424.975107] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 5425.204531] ath10k_pci 0000:01:00.0: mac ht peer 18:a6:f7:23:6e:66 mcs cnt 24 nss 3 [ 5425.204563] ath10k_pci 0000:01:00.0: mac peer 18:a6:f7:23:6e:66 phymode 11na-ht40 [ 5425.204585] ath10k_pci 0000:01:00.0: wmi peer assoc vdev 0 addr 18:a6:f7:23:6e:66 (new) [ 5425.204614] ath10k_pci 0000:01:00.0: wmi vdev 0 peer 0x18:a6:f7:23:6e:66 set param 1 value 0 [ 5425.205376] ath10k_pci 0000:01:00.0: received event id 36891 not implemented [ 5425.209240] ath10k_pci 0000:01:00.0: wmi vdev install key idx 0 cipher 4 len 16 [ 5425.209655] ath10k_pci 0000:01:00.0: wmi vdev install key idx 1 cipher 4 len 16 [ 5425.210196] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 5425.995007] ath10k_pci 0000:01:00.0: mac sta rc update for 18:a6:f7:23:6e:66 changed 00000001 bw 2 nss 3 smps 1 [ 5425.995060] ath10k_pci 0000:01:00.0: mac update sta 18:a6:f7:23:6e:66 peer bw 2 [ 5425.995081] ath10k_pci 0000:01:00.0: wmi vdev 0 peer 0x18:a6:f7:23:6e:66 set param 4 value 2 [ 5439.439875] ath10k_pci 0000:01:00.0: firmware crashed! (uuid db76b67c-ca98-4519-a762-4ff4edb45526) [ 5439.449007] ath10k_pci 0000:01:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000 [ 5439.458378] ath10k_pci 0000:01:00.0: kconfig debug 1 debugfs 1 tracing 0 dfs 1 testmode 1 [ 5439.471460] ath10k_pci 0000:01:00.0: firmware ver 10.2.4.70.54 api 5 features no-p2p,raw-mode,mfp crc32 9d340dd9 [ 5439.481844] ath10k_pci 0000:01:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08 [ 5439.489267] ath10k_pci 0000:01:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1 [ 5439.506678] ath10k_pci 0000:01:00.0: [00]: 0x4100016C 0x000015B3 0x009A4577 0x00955B31 [ 5439.514706] ath10k_pci 0000:01:00.0: [04]: 0x009A4577 0x00060130 0x00000002 0x00439E98 [ 5439.522751] ath10k_pci 0000:01:00.0: [08]: 0x0044110C 0x00442074 0x00407120 0x004436CC [ 5439.530794] ath10k_pci 0000:01:00.0: [12]: 0x00000009 0x00000000 0x009A3518 0x009A3526 [ 5439.538834] ath10k_pci 0000:01:00.0: [16]: 0x00958080 0x0094085D 0x00000000 0x00000000 [ 5439.546871] ath10k_pci 0000:01:00.0: [20]: 0x409A4577 0x0040AAC4 0x0040AC60 0x0040AC09 [ 5439.554915] ath10k_pci 0000:01:00.0: [24]: 0x809A44BA 0x0040AB24 0x00400000 0xC09A4577 [ 5439.562948] ath10k_pci 0000:01:00.0: [28]: 0x809A39DE 0x0040AB84 0x0044110C 0x00442074 [ 5439.570992] ath10k_pci 0000:01:00.0: [32]: 0x809A5FE2 0x0040ABB4 0x0044110C 0x00407120 [ 5439.579032] ath10k_pci 0000:01:00.0: [36]: 0x809A2E6C 0x0040ABF4 0x0040AC14 0x00001580 [ 5439.587070] ath10k_pci 0000:01:00.0: [40]: 0x80990F6F 0x0040AD04 0x009C643C 0x004436CC [ 5439.595113] ath10k_pci 0000:01:00.0: [44]: 0x80998510 0x0040AD64 0x004208FC 0x00439E4C [ 5439.603146] ath10k_pci 0000:01:00.0: [48]: 0x8099AE95 0x0040AD84 0x004208FC 0x00425E00 [ 5439.611191] ath10k_pci 0000:01:00.0: [52]: 0x809BFC55 0x0040AEE4 0x00424FE8 0x00000002 [ 5439.619230] ath10k_pci 0000:01:00.0: [56]: 0x80940F18 0x0040AF14 0x00000004 0x004039D0 [ 5439.732482] ath10k_pci 0000:01:00.0: failed to synchronize monitor vdev 1 stop: -143 We noticed in this log that when the radio starts up it says that it is in VHT80 mode: [ 5413.526592] ath10k_pci 0000:01:00.0: mac vdev 0 start center_freq 5180 phymode 11ac-vht80 [ 5425.204563] ath10k_pci 0000:01:00.0: mac peer 18:a6:f7:23:6e:66 phymode 11na-ht40 [ 24.874253] ath10k_pci 0000:01:00.0: mac chanctx add freq 5180 width 3 ptr 86d26db0 [ 24.874278] ath10k_pci 0000:01:00.0: mac monitor recalc started? 0 needed? 0 allowed? 1 [ 24.874296] ath10k_pci 0000:01:00.0: mac chanctx assign ptr 86d26db0 vdev_id 0 [ 24.874312] ath10k_pci 0000:01:00.0: mac vdev 0 start center_freq 5180 phymode 11ac-vht80 [ 24.874337] ath10k_pci 0000:01:00.0: wmi vdev start id 0x0 flags: 0x0, freq 5180, mode 10, ch_flags: 0xA000000, max_power: 46 [ 24.881515] ath10k_pci 0000:01:00.0: mac chanctx change freq 5180 width 3 ptr 86d26db0 changed 10 [ 24.881535] ath10k_pci 0000:01:00.0: mac chanctx change freq 5180 width 3 ptr 86d26db0 changed 2 [ 24.881554] ath10k_pci 0000:01:00.0: mac monitor recalc started? 0 needed? 1 allowed? 1 [ 24.881574] ath10k_pci 0000:01:00.0: WMI vdev create: id 1 type 4 subtype 0 macaddr 18:a6:f7:23:6e:66 [ 24.881745] ath10k_pci 0000:01:00.0: wmi vdev start id 0x1 flags: 0x0, freq 5180, mode 10, ch_flags: 0xA000000, max_power: 46 [ 25.879992] ath10k_pci 0000:01:00.0: wmi mgmt vdev up id 0x1 assoc id 0 bssid 18:a6:f7:23:6e:66 [ 25.880139] ath10k_pci 0000:01:00.0: wmi vdev id 0x0 set param 3 value 1000 [ 25.880199] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 25.880988] ath10k_pci 0000:01:00.0: wmi mgmt vdev up id 0x0 assoc id 0 bssid 00:00:00:00:00:00 [ 25.928796] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 25.929020] ath10k_pci 0000:01:00.0: mac monitor recalc started? 1 needed? 1 allowed? 1 [ 25.941886] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 25.953727] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 25.970588] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 25.989056] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 26.071686] ath10k_pci 0000:01:00.0: mac vdev 0 peer create 18:a6:f7:26:0f:21 (new sta) sta 1 / 128 peer 2 / 144 [ 26.071712] ath10k_pci 0000:01:00.0: wmi peer create vdev_id 0 peer_addr 18:a6:f7:26:0f:21 [ 26.071981] ath10k_pci 0000:01:00.0: mac ht peer 18:a6:f7:26:0f:21 mcs cnt 24 nss 3 [ 26.071999] ath10k_pci 0000:01:00.0: mac vht peer 18:a6:f7:26:0f:21 max_mpdu 1048575 flags 0x601b001 [ 26.072028] ath10k_pci 0000:01:00.0: mac peer 18:a6:f7:26:0f:21 phymode 11ac-vht80 [ 26.072047] ath10k_pci 0000:01:00.0: wmi peer assoc vdev 0 addr 18:a6:f7:26:0f:21 (new) [ 26.072071] ath10k_pci 0000:01:00.0: wmi vdev 0 peer 0x18:a6:f7:26:0f:21 set param 1 value 0 [ 26.072502] ath10k_pci 0000:01:00.0: received event id 36891 not implemented [ 26.074194] ath10k_pci 0000:01:00.0: mac sta rc update for 18:a6:f7:26:0f:21 changed 00000000 bw 2 nss 3 smps 1 [ 26.074586] ath10k_pci 0000:01:00.0: vdev 0 set beacon tx mode to staggered [ 27.135445] ath10k_pci 0000:01:00.0: mac monitor recalc started? 1 needed? 1 allowed? 1 It seems to start up in VHT80 mode and when it peers with Node B it thinks Node B is also in VHT80 mode and ping works. 4. Beacons are sent at 6 Mb/s basic rate and unicast QoS Data is sent with three spatial streams. Attached is the full pcap of the experiment.

0x009A4577 0x00955B31

Benjamin, Thanks for the logs.
Quick questions to further debug the issue here,

1. Is this issue seen every time you start sending data traffic?
2. Issue seen with older firmwares? (FYR, 
http://linuxwireless.org/en/users/Drivers/ath10k/firmware/ )
3. Could you please share the dmesg from your device after enabling MAC and WMI 
logs in ath10k driver
        To enable debug logs please see 
http://linuxwireless.org/en/users/Drivers/ath10k/debug/ 
4. Do you know what is the Number of Spatial Streams seen in mesh beacons and 
in mesh data packet?

Thanks,
Ashok

ath10k_crash_pcap.tgz
Description: application/compressed-tar