From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: 4.6-rc5 on arm (nokia n900): spinlock bad magic on CPU#0, Date: Wed, 27 Apr 2016 21:59:34 +0200 Message-ID: <20160427195934.GA18806@amd> References: <20160425112028.GA22359@amd> <20160425145933.GA10740@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20160425145933.GA10740@amd> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: pali.rohar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, kernel list , linux-arm-kernel , linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org, khilman-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, aaro.koskinen-X3B1VOXEql0@public.gmane.org, ivo.g.dimitrov.75-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, patrikbachan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-omap@vger.kernel.org On Mon 2016-04-25 16:59:33, Pavel Machek wrote: > Hi! > > > First time such thing happened, normally N900 is very stable. > > Second time, within a day. It seems rather repeatable. I tested 4.4 > rather heavily, and seen any backtraces... > > Oh, and some saboteur seemed to turn on ipv6 on my wifi. Probably > unrelated.... Happened again today. Definitely a regression from 4.4... Pavel [ 266.151550] BUG: spinlock bad magic on CPU#0, kworker/u2:0/6 [ 266.151611] lock: 0xcd644f40, .magic: 00000000, .owner: /-1, .owner_cpu: 0 [ 266.151641] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 4.6.0-rc5-176860-gd6fbb13-dirty #251 [ 266.151672] Hardware name: Nokia RX-51 board [ 266.151702] Workqueue: phy1 wl1251_irq_work [ 266.151794] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 266.151824] [] (show_stack) from [] (dump_stack+0x8c/0xac) [ 266.151855] [] (dump_stack) from [] (do_raw_spin_lock+0x198/0x1b8) [ 266.151916] [] (do_raw_spin_lock) from [] (_raw_spin_lock_irqsave+0x10/0x18) [ 266.151947] [] (_raw_spin_lock_irqsave) from [] (wl1251_op_tx+0x38/0x5c) [ 266.151977] [] (wl1251_op_tx) from [] (ieee80211_tx_frags+0xd0/0x3d4) [ 266.152008] [] (ieee80211_tx_frags) from [] (__ieee80211_tx+0x6c/0x134) [ 266.152069] [] (__ieee80211_tx) from [] (ieee80211_tx+0xb4/0xdc) [ 266.152099] [] (ieee80211_tx) from [] (__ieee80211_subif_start_xmit+0x540/0x6d0) [ 266.152130] [] (__ieee80211_subif_start_xmit) from [] (ieee80211_subif_start_xmit+0xc/0x14) [ 266.152160] [] (ieee80211_subif_start_xmit) from [] (dev_hard_start_xmit+0x228/0x440) [ 266.152191] [] (dev_hard_start_xmit) from [] (sch_direct_xmit+0xf4/0x220) [ 266.152221] [] (sch_direct_xmit) from [] (__dev_queue_xmit+0x25c/0x62c) [ 266.152252] [] (__dev_queue_xmit) from [] (ip_finish_output2+0x1a0/0x3d0) [ 266.152282] [] (ip_finish_output2) from [] (ip_output+0x130/0x144) [ 266.152313] [] (ip_output) from [] (ip_local_out+0x38/0x3c) [ 266.152343] [] (ip_local_out) from [] (tcp_transmit_skb+0x510/0x984) [ 266.152404] [] (tcp_transmit_skb) from [] (tcp_rcv_established+0x360/0x728) [ 266.152435] [] (tcp_rcv_established) from [] (tcp_v4_do_rcv+0x14c/0x1b0) [ 266.152465] [] (tcp_v4_do_rcv) from [] (tcp_v4_rcv+0xc3c/0xc58) [ 266.152496] [] (tcp_v4_rcv) from [] (ip_local_deliver_finish+0x5c/0x29c) [ 266.152526] [] (ip_local_deliver_finish) from [] (ip_local_deliver+0xd0/0xd8) [ 266.152557] [] (ip_local_deliver) from [] (ip_rcv_finish+0x1f0/0x458) [ 266.152587] [] (ip_rcv_finish) from [] (ip_rcv+0x39c/0x56c) [ 266.152618] [] (ip_rcv) from [] (__netif_receive_skb_core+0x2e8/0x958) [ 266.152648] [] (__netif_receive_skb_core) from [] (netif_receive_skb_internal+0x30/0xa0) [ 266.152679] [] (netif_receive_skb_internal) from [] (ieee80211_deliver_skb+0x184/0x1bc) [ 266.152709] [] (ieee80211_deliver_skb) from [] (ieee80211_rx_handlers+0xe9c/0x201c) [ 266.152740] [] (ieee80211_rx_handlers) from [] (ieee80211_prepare_and_rx_handle+0x1b8/0x9b4) [ 266.152770] [] (ieee80211_prepare_and_rx_handle) from [] (ieee80211_rx_napi+0x680/0x7f0) [ 266.152832] [] (ieee80211_rx_napi) from [] (wl1251_rx+0x324/0x49c) [ 266.152862] [] (wl1251_rx) from [] (wl1251_irq_work+0x144/0x1b0) [ 266.152893] [] (wl1251_irq_work) from [] (process_one_work+0x130/0x428) [ 266.152923] [] (process_one_work) from [] (worker_thread+0x15c/0x490) [ 266.152954] [] (worker_thread) from [] (kthread+0xd4/0xf0) [ 266.152984] [] (kthread) from [] (ret_from_fork+0x14/0x3c) -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html