From: Ben Greear <greearb@candelatech.com>
To: Sebastian Gottschall <s.gottschall@dd-wrt.com>,
svp <s.pooheer@gmail.com>,
"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>
Subject: Re: QCA988x and kernel 4.13
Date: Mon, 2 Oct 2017 10:24:14 -0700 [thread overview]
Message-ID: <48aebea8-9231-b41e-cbaa-d592d8540c53@candelatech.com> (raw)
In-Reply-To: <7549b77b-3619-f8a5-48d6-eb7e330ba80e@dd-wrt.com>
On 10/01/2017 07:06 AM, Sebastian Gottschall wrote:
> you have to update to the latest mac80211 code. there is a well known bug in mac80211 which causes a deadlock with ath10k
Do you have a pointer to the patch that fixes this? I'd like to check if it has
made it into 4.13 stable yet...
Thanks,
Ben
>
> 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!
>>
>>
>>
>>
>> _______________________________________________
>> ath10k mailing list
>> ath10k@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/ath10k
>>
>
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
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next prev parent reply other threads:[~2017-10-02 17:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-30 8:39 QCA988x and kernel 4.13 svp
2017-10-01 14:06 ` Sebastian Gottschall
2017-10-02 17:24 ` Ben Greear [this message]
2017-10-04 8:50 ` Kalle Valo
2017-10-04 11:33 ` Sebastian Gottschall
2017-10-04 15:13 ` Ben Greear
2017-10-04 16:35 ` Sebastian Gottschall
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