From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail2.candelatech.com ([208.74.158.173]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dz4SK-0000cZ-Jr for ath10k@lists.infradead.org; Mon, 02 Oct 2017 17:24:42 +0000 Subject: Re: QCA988x and kernel 4.13 References: <7549b77b-3619-f8a5-48d6-eb7e330ba80e@dd-wrt.com> From: Ben Greear Message-ID: <48aebea8-9231-b41e-cbaa-d592d8540c53@candelatech.com> Date: Mon, 2 Oct 2017 10:24:14 -0700 MIME-Version: 1.0 In-Reply-To: <7549b77b-3619-f8a5-48d6-eb7e330ba80e@dd-wrt.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Sebastian Gottschall , svp , "ath10k@lists.infradead.org" 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 Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k