QCA988x and kernel 4.13

[Sebastian Gottschall]

you have to update to the latest mac80211 code. there is a well known 
bug in mac80211 which causes a deadlock with ath10k

Am 30.09.2017 um 10:39 schrieb svp:
> Hi!
>
> After upgrade to 4.13 have errors in log
>
> kernel: INFO: task kworker/u8:5:113 blocked for more than 120 seconds.
> kernel:       Tainted: G           O    4.13.3-1-ARCH #1
> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables 
> this essage.
> kernel: kworker/u8:5    D    0   113      2 0x00000000
> kernel: Workqueue: phy0 ieee80211_ba_session_work [mac80211]
> kernel: Call Trace:
> kernel:  __schedule+0x239/0x890
> kernel:  schedule+0x3d/0x90
> kernel:  schedule_preempt_disabled+0x15/0x20
> kernel:  __mutex_lock.isra.2+0x295/0x520
> kernel:  ? ttwu_do_wakeup+0x1e/0x160
> kernel:  __mutex_lock_slowpath+0x13/0x20
> kernel:  ? update_load_avg+0x426/0x5a0
> kernel:  ? __mutex_lock_slowpath+0x13/0x20
> kernel:  mutex_lock+0x25/0x30
> kernel:  __ieee80211_start_rx_ba_session+0x153/0x520 [mac80211]
> kernel:  ieee80211_ba_session_work+0x164/0x250 [mac80211]
> kernel:  process_one_work+0x1de/0x430
> kernel:  worker_thread+0x47/0x3f0
> kernel:  kthread+0x125/0x140
> kernel:  ? process_one_work+0x430/0x430
> kernel:  ? kthread_create_on_node+0x70/0x70
> kernel:  ret_from_fork+0x25/0x30
>
> Then this system became unstable.
>
> lspci
> 06:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac 
> Wireless Network Adapter
>
> uname -a
> Linux I5-4670 4.13.3-1-ARCH #1 SMP PREEMPT Thu Sep 21 20:33:16 CEST 
> 2017 x86_64 GNU/Linux
>
> iwconfig
> wlp6s0    IEEE 802.11  Mode:Master  Tx-Power=30 dBm
>           Retry short limit:7   RTS thr:off   Fragment thr:off
>           Power Management:on
>
> firmware-5.bin_10.2.4.70.59-2 was used
>
> Thanks!
>
>
>
>
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> ath10k mailing list
> ath10k at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/ath10k
>

-- 
Mit freundlichen Grüssen / Regards

Sebastian Gottschall / CTO

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