Hi All, I have connected my pc and TV board as below - PC (network i/f) <----> ethernet to usb dongle <---> usb port of TV board When I power off my board, i get a kernel crash. Please have a look at log attached here.I debug and found that unregister_netdev() in usbnet_disconnect() clears net_device object and still skb is under processing which tries to access net_device object and leads to crash.Dongle is using ax88179_178.ko module. Backtrace: [1-11856.1782] [<c045ea38>] (fib_compute_spec_dst+0x0/0x17c) from [<c04308c0>] (ipv4_pktinfo_prepare+0x38/0x70) [1-11856.1880] r6:00000000 r5:c5d55800 r4:c5d55800 [1-11856.1926] [<c0430888>] (ipv4_pktinfo_prepare+0x0/0x70) from [<c04512d4>] (udp_queue_rcv_skb+0x1c8/0x384) [1-11856.2023] r5:c5d55800 r4:cbdf4380 [1-11856.2059] [<c045110c>] (udp_queue_rcv_skb+0x0/0x384) from [<c0451590>] (flush_stack+0x100/0x118) [1-11856.2148] r7:cd398480 r6:00000000 r5:cbdf4380 r4:c5d55800 [1-11856.2205] [<c0451490>] (flush_stack+0x0/0x118) from [<c04518b0>] (__udp4_lib_mcast_deliver.isra.44+0x308/0x370) [1-11856.2308] [<c04515a8>] (__udp4_lib_mcast_deliver.isra.44+0x0/0x370) from [<c0451dd0>] (__udp4_lib_rcv+0x4b8/0x588) [1-11856.2413] [<c0451918>] (__udp4_lib_rcv+0x0/0x588) from [<c0451ec0>] (udp_rcv+0x20/0x28) [1-11856.2495] [<c0451ea0>] (udp_rcv+0x0/0x28) from [<c042836c>] (ip_local_deliver_finish+0x118/0x27c) [1-11856.2585] [<c0428254>] (ip_local_deliver_finish+0x0/0x27c) from [<c0428988>] (ip_local_deliver+0x8c/0x98) [1-11856.2683] r7:d4b01a40 r6:cd398480 r5:00000000 r4:cd398480 [1-11856.2740] [<c04288fc>] (ip_local_deliver+0x0/0x98) from [<c0428798>] (ip_rcv_finish+0x2c8/0x344) [1-11856.2829] r4:00295a38 [1-11856.2855] [<c04284d0>] (ip_rcv_finish+0x0/0x344) from [<c0428cb8>] (ip_rcv+0x324/0x3f0) [1-11856.2936] r7:d4b01a40 r6:cd398480 r5:d2e8b720 r4:c0737500 [1-11856.2993] [<c0428994>] (ip_rcv+0x0/0x3f0) from [<c03f69d4>] (__netif_receive_skb_core+0x4d0/0x568) [1-11856.3084] r7:00000000 r6:00000000 r5:c0708b34 r4:c070a728 [1-11856.3141] [<c03f6504>] (__netif_receive_skb_core+0x0/0x568) from [<c03f7038>] (__netif_receive_skb+0x20/0x70) [1-11856.3242] [<c03f7018>] (__netif_receive_skb+0x0/0x70) from [<c03f8584>] (process_backlog+0xec/0x1e8) [1-11856.3335] r5:00000000 r4:d7c828c4 [1-11856.3371] [<c03f8498>] (process_backlog+0x0/0x1e8) from [<c03f82e4>] (net_rx_action+0x104/0x2b8) [1-11856.3460] [<c03f81e0>] (net_rx_action+0x0/0x2b8) from [<c0044460>] (__do_softirq+0x180/0x304) [1-11856.3548] [<c00442e0>] (__do_softirq+0x0/0x304) from [<c0044708>] (do_softirq+0x74/0xc4) [1-11856.3630] [<c0044694>] (do_softirq+0x0/0xc4) from [<c03f56f0>] (netif_rx_ni+0x50/0x78) [1-11856.3711] r7:d1708780 r6:cd399380 r5:00000000 r4:c850a020 [1-11856.3768] [<c03f56a0>] (netif_rx_ni+0x0/0x78) from [<c03f57ec>] (dev_loopback_xmit+0xd4/0xe0) [1-11856.3855] r5:00000000 r4:cd398480 [1-11856.3891] [<c03f5718>] (dev_loopback_xmit+0x0/0xe0) from [<c042da08>] (ip_mc_output+0x114/0x234) [1-11856.3980] r5:00000000 r4:cd398480 [1-11856.4016] [<c042d8f4>] (ip_mc_output+0x0/0x234) from [<c042d3cc>] (ip_local_out+0x38/0x3c) [1-11856.4100] r9:000000c6 r8:d2e8b734 r7:cbdf7800 r6:c0737500 r5:c0737500 r4:cd399380 [1-11856.4179] [<c042d394>] (ip_local_out+0x0/0x3c) from [<c042e5bc>] (ip_send_skb+0x20/0x88) [1-11856.4261] r5:c0737500 r4:cd399380 [1-11856.4297] [<c042e59c>] (ip_send_skb+0x0/0x88) from [<c044e400>] (udp_send_skb+0x250/0x314) [1-11856.4382] r5:00000000 r4:cd399380 [1-11856.4417] [<c044e1b0>] (udp_send_skb+0x0/0x314) from [<c04505b4>] (udp_sendmsg+0x6a8/0x6d0) [1-11856.4503] [<c044ff0c>] (udp_sendmsg+0x0/0x6d0) from [<c04587a8>] (inet_sendmsg+0x94/0xc4) [1-11856.4586] [<c0458714>] (inet_sendmsg+0x0/0xc4) from [<c03e2624>] (sock_sendmsg+0xa0/0xbc) [1-11856.4670] r7:c8406e40 r6:c850bf5c r5:000000be r4:c4cda300 [1-11856.4726] [<c03e2584>] (sock_sendmsg+0x0/0xbc) from [<c03e3c2c>] (___sys_sendmsg.part.16+0x1a0/0x244) [1-11856.4820] r7:c4cda300 r6:00000000 r5:c850be7c r4:00000000 [1-11856.4877] [<c03e3a8c>] (___sys_sendmsg.part.16+0x0/0x244) from [<c03e4db4>] (__sys_sendmsg+0x5c/0x80) [1-11856.4971] [<c03e4d58>] (__sys_sendmsg+0x0/0x80) from [<c03e4df0>] (SyS_sendmsg+0x18/0x1c) [1-11856.5055] r6:bdfda694 r5:bdfda60c r4:002841c0 [1-11856.5101] [<c03e4dd8>] (SyS_sendmsg+0x0/0x1c) from [<c00114c0>] (ret_fast_syscall+0x0/0x48) Please help. Thanks, Vivek
[0-11852.8705] usb 5-1: USB disconnect, device number 10 [0-11852.8720] ax88179_178a 5-1:1.0 eth1: Failed to read reg index 0x0002: -19 [0-11852.8785] ax88179_178a 5-1:1.0 eth1: Failed to write reg index 0x0002: -19 [0-11852.8866] [SA_DEBUG] trying to ifconfig down (net device close ) [0-11852.8929] Main Output MUTE !!!!!! MainOutGain[100] [0-11852.8968] DEV_NAME : eth1 PID: 372 (khubd) PPID: 2 (kthreadd) [0-11852.9037] [SA_DEBUG] trying to ifconfig down (net device close ) [0-11852.9094] vivek, inetdev_event: NETDEV_UNREGISTER called )/ie.wd(34)/g_no[0-11852.9157] vivek, inetdev_destroy freeing ip_ptr tilist(0x0018dcc[3-11852.9219] [bptime] process open : app-boot-manage(30031) [1-11852.9219] vivek, ip_ptr is gone [1-11852.9219] dual-tv (1493): undefined instruction: pc=c045eaa8 [1-11852.9220] Code: eb01ab02 e5952180 e3520000 1a000000 (e7f001f2) [1-11852.9220] ================================================================================ [1-11852.9220] SMP Send Stop Other CPU! [1-11852.9220] ================================================================================ [2-11852.9220] CPU2: stopping [2-11852.9220] Process mmcqd/0 (pid: 201, stack limit = 0xd4e14238) [2-11852.9220] CPU: 2 PID: 201 Comm: mmcqd/0 Tainted: PO 3.10.30+ #1 [2-11852.9220] task: d50a8540 ti: d4e14000 task.ti: d4e14000 [2-11852.9220] PC is at kmem_cache_free+0xd4/0x2e4 [2-11852.9220] LR is at bvec_free+0x4c/0x54 [2-11852.9220] pc : [<c014cc80>] lr : [<c0185518>] psr: a00f0113 [2-11852.9220] sp : d4e15d30 ip : d4e15d68 fp : d4e15d64 [2-11852.9220] r10: d5ba6dc0 r9 : 00000000 r8 : d4f511f4 [2-11852.9220] r7 : 00000001 r6 : d7d3a460 r5 : d4f51200 r4 : d584cb40 [2-11852.9220] r3 : d86eea00 r2 : 00024000 r1 : 00045751 r0 : d86eea00 [2-11852.9220] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [2-11852.9220] Control: 10c5387d Table: 2ca0406a DAC: 00000015 [2-11852.9220] CPU: 2 PID: 201 Comm: mmcqd/0 Tainted: PO 3.10.30+ #1 [2-11852.9221] Backtrace: [2-11852.9221] [<c0015678>] (dump_backtrace+0x0/0x10c) from [<c0015e0c>] (show_stack+0x20/0x24) [2-11852.9221] r7:00000000 r6:d4e14238 r5:d4e15ce8 r4:00000002 [2-11852.9221] [<c0015dec>] (show_stack+0x0/0x24) from [<c04ce7f0>] (dump_stack+0x20/0x28) [2-11852.9221] [<c04ce7d0>] (dump_stack+0x0/0x28) from [<c0017808>] (handle_IPI+0x120/0x29c) [2-11852.9221] [<c00176e8>] (handle_IPI+0x0/0x29c) from [<c0008620>] (gic_handle_irq+0xa0/0xac) [2-11852.9221] r8:c086c740 r7:c086c740 r6:d4e15ce8 r5:c07082c8 r4:fe682000 [2-11852.9221] [<c0008580>] (gic_handle_irq+0x0/0xac) from [<c0011044>] (__irq_svc+0x44/0x78) [2-11852.9221] Exception stack(0xd4e15ce8 to 0xd4e15d30) [2-11852.9221] 5ce0: d86eea00 00045751 00024000 d86eea00 d584cb40 d4f51200 [2-11852.9221] 5d00: d7d3a460 00000001 d4f511f4 00000000 d5ba6dc0 d4e15d64 d4e15d68 d4e15d30 [2-11852.9221] 5d20: c0185518 c014cc80 a00f0113 ffffffff d4e15d60 [2-11852.9221] r9:00000000 r8:d4f511f4 r7:d4e15d1c r6:ffffffff r5:a00f0113 [2-11852.9221] r4:c014cc80 [2-11852.9222] [<c014cbac>] (kmem_cache_free+0x0/0x2e4) from [<c0185518>] (bvec_free+0x4c/0x54) [2-11852.9222] [<c01854cc>] (bvec_free+0x0/0x54) from [<c0185598>] (bio_put+0x78/0x94) [2-11852.9222] [<c0185520>] (bio_put+0x0/0x94) from [<c02217bc>] (meta_end_IO+0x13c/0x140) [2-11852.9222] r5:d4f511e8 r4:d5ba6dc0 [2-11852.9222] [<c0221680>] (meta_end_IO+0x0/0x140) from [<c0184c7c>] (bio_endio+0xc0/0xc4) [2-11852.9222] r9:00000000 r8:00000000 r7:d4f51200 r6:00000000 r5:00000008 [2-11852.9222] r4:d5ba6dc0 [2-11852.9222] [<c0184bbc>] (bio_endio+0x0/0xc4) from [<c02639fc>] (blk_update_request+0x2b8/0x424) [2-11852.9222] r7:00008000 r6:d4bc53e8 r5:00000000 r4:00008000 [2-11852.9222] [<c0263744>] (blk_update_request+0x0/0x424) from [<c0263b8c>] (blk_update_bidi_request+0x24/0x7c) [2-11852.9222] [<c0263b68>] (blk_update_bidi_request+0x0/0x7c) from [<c0263c08>] (blk_end_bidi_request+0x24/0x58) [2-11852.9222] r7:00000000 r6:00000000 r5:d4bc53e8 r4:d4d032a0 [2-11852.9222] [<c0263be4>] (blk_end_bidi_request+0x0/0x58) from [<c0263c58>] (blk_end_request+0x1c/0x20) [2-11852.9222] r9:d4d29cc8 r8:d4bc53e8 r7:00000000 r6:d5818000 r5:d4d29c94 [2-11852.9222] r4:d4d29ddc [2-11852.9223] [<c0263c3c>] (blk_end_request+0x0/0x20) from [<c038b310>] (mmc_blk_issue_rw_rq+0x5a4/0x9c8) [2-11852.9223] [<c038ad6c>] (mmc_blk_issue_rw_rq+0x0/0x9c8) from [<c038bb00>] (mmc_blk_issue_rq+0x3cc/0x460) [2-11852.9223] [<c038b734>] (mmc_blk_issue_rq+0x0/0x460) from [<c038d2c4>] (mmc_queue_thread+0xc4/0x14c) [2-11852.9223] [<c038d200>] (mmc_queue_thread+0x0/0x14c) from [<c005ff34>] (kthread+0xbc/0xc8) [2-11852.9223] [<c005fe78>] (kthread+0x0/0xc8) from [<c0011588>] (ret_from_fork+0x14/0x20) [2-11852.9223] r7:00000000 r6:00000000 r5:c005fe78 r4:d58c3cc4 [0-11852.9223] CPU0: stopping [0-11852.9223] Process khubd (pid: 372, stack limit = 0xd0464238) [0-11852.9223] CPU: 0 PID: 372 Comm: khubd Tainted: PO 3.10.30+ #1 [0-11852.9223] task: d50ae900 ti: d0464000 task.ti: d0464000 [0-11852.9223] PC is at kobject_uevent_env+0x2fc/0x420 [0-11852.9223] LR is at kobject_uevent_env+0x2fc/0x420 [0-11852.9223] pc : [<c02779c4>] lr : [<c02779c4>] psr: 200b0013 [0-11852.9223] sp : d0465bc8 ip : d0465bc8 fp : d0465c24 [0-11852.9223] r10: c71bc310 r9 : 00000000 r8 : d3aa7000 [0-11852.9223] r7 : c0720b74 r6 : c0720b74 r5 : c71bc300 r4 : c9307408 [0-11852.9223] r3 : 00000001 r2 : 00000001 r1 : 00000000 r0 : c0720b50 [0-11852.9223] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [0-11852.9223] Control: 10c5387d Table: 2a17406a DAC: 00000015 [0-11852.9223] CPU: 0 PID: 372 Comm: khubd Tainted: PO 3.10.30+ #1 [0-11852.9223] Backtrace: [0-11852.9224] [<c0015678>] (dump_backtrace+0x0/0x10c) from [<c0015e0c>] (show_stack+0x20/0x24) [0-11852.9224] r7:00000000 r6:d0464238 r5:d0465b80 r4:00000000 [0-11852.9224] [<c0015dec>] (show_stack+0x0/0x24) from [<c04ce7f0>] (dump_stack+0x20/0x28) [0-11852.9224] [<c04ce7d0>] (dump_stack+0x0/0x28) from [<c0017808>] (handle_IPI+0x120/0x29c) [0-11852.9224] [<c00176e8>] (handle_IPI+0x0/0x29c) from [<c0008620>] (gic_handle_irq+0xa0/0xac) [0-11852.9224] r8:c086c740 r7:c086c740 r6:d0465b80 r5:c07082c8 r4:fe682000 [0-11852.9224] [<c0008580>] (gic_handle_irq+0x0/0xac) from [<c0011044>] (__irq_svc+0x44/0x78) [0-11852.9224] Exception stack(0xd0465b80 to 0xd0465bc8) [0-11852.9224] 5b80: c0720b50 00000000 00000001 00000001 c9307408 c71bc300 c0720b74 c0720b74 [0-11852.9224] 5ba0: d3aa7000 00000000 c71bc310 d0465c24 d0465bc8 d0465bc8 c02779c4 c02779c4 [0-11852.9224] 5bc0: 200b0013 ffffffff 000000d0 [0-11852.9224] r9:00000000 r8:d3aa7000 r7:d0465bb4 r6:ffffffff r5:200b0013 [0-11852.9224] r4:c02779c4 [0-11852.9224] [<c02776c8>] (kobject_uevent_env+0x0/0x420) from [<c0277b14>] (kobject_uevent+0x2c/0x34) [0-11852.9224] [<c0277ae8>] (kobject_uevent+0x0/0x34) from [<c02768e4>] (kobject_release+0x38/0x7c) [0-11852.9224] [<c02768ac>] (kobject_release+0x0/0x7c) from [<c0276990>] (kobject_put+0x68/0x78) [0-11852.9225] r7:00000000 r6:d4b01a40 r5:00000000 r4:c9307408 [0-11852.9225] [<c0276928>] (kobject_put+0x0/0x78) from [<c040d098>] (net_rx_queue_update_kobjects+0xe0/0xfc) [0-11852.9225] r4:00000000 [0-11852.9225] [<c040cfb8>] (net_rx_queue_update_kobjects+0x0/0xfc) from [<c040d21c>] (netdev_unregister_kobject+0x38/0x68) [0-11852.9225] [<c040d1e4>] (netdev_unregister_kobject+0x0/0x68) from [<c03f5d64>] (rollback_registered_many+0x22c/0x2a4) [0-11852.9225] r7:00200200 r6:0000026e r5:d0465d00 r4:d4b01a40 [0-11852.9225] [<c03f5b38>] (rollback_registered_many+0x0/0x2a4) from [<c03f5e14>] (rollback_registered+0x38/0x50) [0-11852.9225] r9:00000000 r8:bf155598 r7:00000000 r6:d4b01a40 r5:00000000 [0-11852.9225] r4:d4b01a40 [0-11852.9225] [<c03f5ddc>] (rollback_registered+0x0/0x50) from [<c03f7d8c>] (unregister_netdevice_queue+0x78/0xa8) [0-11852.9225] [<c03f7d14>] (unregister_netdevice_queue+0x0/0xa8) from [<c03f7de4>] (unregister_netdev+0x28/0x30) [0-11852.9225] r5:ca6f2ec0 r4:d4b01a40 [0-11852.9226] [<c03f7dbc>] (unregister_netdev+0x0/0x30) from [<bec3f044>] (usbnet_disconnect+0xc0/0x14c [usbnet]) [0-11852.9226] r5:ca6f2ec0 r4:d4b01f80 [0-11852.9226] [<bec3ef84>] (usbnet_disconnect+0x0/0x14c [usbnet]) from [<bf19cb3c>] (usb_unbind_interface+0x78/0x1b8 [usbcore]) [0-11852.9226] r6:ca6f2ec0 r5:d1e92ac0 r4:ca6f2ee0 [0-11852.9227] [<bf19cac4>] (usb_unbind_interface+0x0/0x1b8 [usbcore]) from [<c02ef1d8>] (__device_release_driver+0x8c/0xd4) [0-11852.9227] r9:c02ec3d0 r8:d4fd2700 r7:00000000 r6:bf1ae970 r5:bf155598 [0-11852.9227] r4:ca6f2ee0 [0-11852.9227] [<c02ef14c>] (__device_release_driver+0x0/0xd4) from [<c02ef24c>] (device_release_driver+0x2c/0x38) [0-11852.9227] r5:ca6f2ee0 r4:ca6f2f14 [0-11852.9227] [<c02ef220>] (device_release_driver+0x0/0x38) from [<c02eeb4c>] (bus_remove_device+0xf8/0x10c) [0-11852.9227] r5:d08e5e7c r4:ca6f2ee0 [0-11852.9227] [<c02eea54>] (bus_remove_device+0x0/0x10c) from [<c02ec4e8>] (device_del+0x118/0x17c) [0-11852.9227] r7:00000000 r6:d1e92b38 r5:00000000 r4:ca6f2ee0 [0-11852.9227] [<c02ec3d0>] (device_del+0x0/0x17c) from [<bf19a264>] (usb_disable_device+0xbc/0x250 [usbcore]) [0-11852.9228] r7:00000000 r6:ca6f2ec0 r5:00000000 r4:d1e92ac0 [0-11852.9228] [<bf19a1a8>] (usb_disable_device+0x0/0x250 [usbcore]) from [<bf18fadc>] (usb_disconnect+0xc0/0x200 [usbcore]) [0-11852.9228] [<bf18fa1c>] (usb_disconnect+0x0/0x200 [usbcore]) from [<bf191654>] (hub_port_connect_change+0x1dc/0xa68 [usbcore]) [0-11852.9229] r9:d1e92ac0 r8:40000000 r7:00000001 r6:00000100 r5:00000001 [0-11852.9229] r4:d00ff9c0 [0-11852.9229] [<bf191478>] (hub_port_connect_change+0x0/0xa68 [usbcore]) from [<bf19244c>] (hub_thread+0x56c/0x9a0 [usbcore]) [0-11852.9229] [<bf191ee0>] (hub_thread+0x0/0x9a0 [usbcore]) from [<c005ff34>] (kthread+0xbc/0xc8) [0-11852.9229] [<c005fe78>] (kthread+0x0/0xc8) from [<c0011588>] (ret_from_fork+0x14/0x20) [0-11852.9229] r7:00000000 r6:00000000 r5:c005fe78 r4:d0905d9c [3-11852.9273] CPU3: stopping [3-11853.7451] Process app-boot-manage (pid: 30031, stack limit = 0xd004e238) [3-11853.7520] CPU: 3 PID: 30031 Comm: app-boot-manage Tainted: PO 3.10.30+ #1 [3-11853.7590] task: d4b7af40 ti: d004e000 task.ti: d004e000 [3-11853.7644] PC is at console_unlock+0x36c/0x420 [3-11853.7689] LR is at walk_stackframe+0x24/0x40 [3-11853.7733] pc : [<c003e0c4>] lr : [<c00152f0>] psr: 600f0013 [3-11853.7733] sp : d004fc60 ip : d004fbd0 fp : d004fcb4 [3-11853.7848] r10: c075c7e8 r9 : c075c7e8 r8 : c075c7e8 [3-11853.7900] r7 : 000008c8 r6 : 000000c6 r5 : 600f0013 r4 : 600f0013 [3-11853.7966] r3 : 00000000 r2 : d004fcb8 r1 : d004fbf0 r0 : c003e70c [3-11853.8031] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [3-11853.8102] Control: 10c5387d Table: 4035c06a DAC: 00000015 [3-11853.8160] CPU: 3 PID: 30031 Comm: app-boot-manage Tainted: PO 3.10.30+ #1 [3-11853.8230] Backtrace: [3-11853.8254] [<c0015678>] (dump_backtrace+0x0/0x10c) from [<c0015e0c>] (show_stack+0x20/0x24) [3-11853.8338] r7:00000000 r6:d004e238 r5:d004fc18 r4:00000003 [3-11853.8395] [<c0015dec>] (show_stack+0x0/0x24) from [<c04ce7f0>] (dump_stack+0x20/0x28) [3-11853.8475] [<c04ce7d0>] (dump_stack+0x0/0x28) from [<c0017808>] (handle_IPI+0x120/0x29c) [3-11853.8557] [<c00176e8>] (handle_IPI+0x0/0x29c) from [<c0008620>] (gic_handle_irq+0xa0/0xac) [3-11853.8641] r8:c086c740 r7:c086c740 r6:d004fc18 r5:c07082c8 r4:fe682000 [3-11853.8708] [<c0008580>] (gic_handle_irq+0x0/0xac) from [<c0011044>] (__irq_svc+0x44/0x78) [3-11853.8791] Exception stack(0xd004fc18 to 0xd004fc60) [3-11853.8842] fc00: c003e70c d004fbf0 [3-11853.8924] fc20: d004fcb8 00000000 600f0013 600f0013 000000c6 000008c8 c075c7e8 c075c7e8 [3-11853.9005] fc40: c075c7e8 d004fcb4 d004fbd0 d004fc60 c00152f0 c003e0c4 600f0013 ffffffff [3-11853.9087] r9:c075c7e8 r8:c075c7e8 r7:d004fc4c r6:ffffffff r5:600f0013 r4:c003e0c4 [3-11853.9166] [<c003dd58>] (console_unlock+0x0/0x420) from [<c003e70c>] (vprintk_emit+0x594/0x5e8) [3-11853.9254] [<c003e178>] (vprintk_emit+0x0/0x5e8) from [<c04c96e8>] (printk+0x40/0x48) [3-11853.9333] [<c04c96a8>] (printk+0x0/0x48) from [<c03acd10>] (bptime_open+0x60/0x78) [3-11853.9410] r3:d4b7af40 r2:0000754f r1:d4b7b168 r0:c065f6dd [3-11853.9467] [<c03accb0>] (bptime_open+0x0/0x78) from [<c02cdee8>] (misc_open+0x138/0x1b0) [3-11853.9549] r5:cf4c4600 r4:c0736048 [3-11853.9584] [<c02cddb0>] (misc_open+0x0/0x1b0) from [<c0157ef8>] (chrdev_open+0x140/0x16c) [3-11853.9667] r9:cf4c4608 r8:cf4c4600 r7:00000000 r6:d4e94cc0 r5:00000000 r4:d5b9f600 [3-11853.9745] [<c0157db8>] (chrdev_open+0x0/0x16c) from [<c0151ac0>] (do_dentry_open+0x1d4/0x298) [3-11853.9832] r8:c0157db8 r7:00000000 r6:d004fe98 r5:d4e94cc0 r4:cf4c4600 [3-11853.9899] [<c01518ec>] (do_dentry_open+0x0/0x298) from [<c0151da0>] (finish_open+0x48/0x5c) [3-11853.9985] [<c0151d58>] (finish_open+0x0/0x5c) from [<c0160a2c>] (do_last.isra.25+0x994/0xb4c) [3-11854.0072] r5:d4e94cc0 r4:d004fee0 [3-11854.0108] [<c0160098>] (do_last.isra.25+0x0/0xb4c) from [<c0160cac>] (path_openat.isra.26+0xc8/0x454) [3-11854.0202] [<c0160be4>] (path_openat.isra.26+0x0/0x454) from [<c0161cc4>] (do_filp_open+0x3c/0x88) [3-11854.0292] [<c0161c88>] (do_filp_open+0x0/0x88) from [<c0152e9c>] (do_sys_open+0xec/0x178) [3-11854.0376] r7:ffffff9c r6:c15910c0 r5:00000001 r4:00000004 [3-11854.0432] [<c0152db0>] (do_sys_open+0x0/0x178) from [<c0152f58>] (SyS_open+0x30/0x34) [3-11854.0512] r9:d004e000 r8:c0011744 r7:00000005 r6:00000003 r5:4474a11c r4:4474a2a4 [3-11854.0591] [<c0152f28>] (SyS_open+0x0/0x34) from [<c00114c0>] (ret_fast_syscall+0x0/0x48) [1-11854.9912] ------------[ cut here ]------------ [1-11854.9958] kernel BUG at net/ipv4/fib_frontend.c:217! [1-11855.0009] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM [1-11855.5289] CPU: 1 PID: 1493 Comm: dual-tv Tainted: PO 3.10.30+ #1 [1-11855.5351] task: c8406e40 ti: c850a000 task.ti: c850a000 [1-11855.5405] PC is at fib_compute_spec_dst+0x70/0x17c [1-11855.5454] LR is at vprintk_emit+0x55c/0x5e8 [1-11855.5498] pc : [<c045eaa8>] lr : [<c003e6d4>] psr: 600d0013 [1-11855.5498] sp : c850b758 ip : c850b6c0 fp : c850b7ac [1-11855.5613] r10: 00000003 r9 : 00000004 r8 : c0737500 [1-11855.5665] r7 : cbdf43b8 r6 : 00000000 r5 : d4b01a40 r4 : c5d55800 [1-11855.5730] r3 : 00000000 r2 : 00000000 r1 : 600d0013 r0 : 00000015 [1-11855.5795] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [1-11855.5867] Control: 10c5387d Table: 284b806a DAC: 00000015 [1-11855.5924] Process dual-tv (pid: 1493, stack limit = 0xc850a238) [1-11855.5985] Stack: (0xc850b758 to 0xc850c000) [1-11855.6029] b740: cbdf7480 00000000 [1-11855.6111] b760: c850b784 d584d540 00000000 00000020 c850a010 c03ea190 00000001 c06f8a00 [1-11855.6192] b780: c850b7cc cd398480 00000000 cd398480 c0737500 c5d55800 c5d55800 00000000 [1-11855.6274] b7a0: c850b7c4 c850b7b0 c04308c0 c045ea44 cbdf4380 c5d55800 c850b7e4 c850b7c8 [1-11855.6356] b7c0: c04512d4 c0430894 c5d55800 cbdf4380 00000000 cd398480 c850b81c c850b7e8 [1-11855.6438] b7e0: c0451590 c0451118 00000001 c850b830 00000004 00000004 00000000 c850b830 [1-11855.6520] b800: 00000141 cd398480 fafaa8c0 faffffef c850b95c c850b820 c04518b0 c045149c [1-11855.6602] b820: 00000003 0000076c d5224a28 0000730f cbdf4380 cbdf4000 cbdf7100 cbdf7480 [1-11855.6683] b840: 00000000 00000000 00000007 00000000 c588b9c0 00000002 00000001 00000000 [1-11855.6765] b860: c850b88c c0044970 c850a008 c0707cc4 c04686a4 d4f15818 c850b8a4 c0044970 [1-11855.6847] b880: c850a020 c046a07c c04686a4 d4ef04c0 c850b8bc c850b8a0 c0044970 c006dc8c [1-11855.6929] b8a0: d2e8b720 d4b01a40 c0887244 d4ef04c0 c850b934 c850b8c0 c04686a4 271ae702 [1-11855.7011] b8c0: c4784500 cc1b1db0 00000001 00000002 c850b94c c850b8e0 c046a07c c0420404 [1-11855.7093] b8e0: d4ef04c0 d7c87614 00000001 cc1b0002 d4b01a40 00000000 00000000 00000014 [1-11855.7175] b900: 00000001 cd390002 00000001 c850b9a4 c0428254 80000000 c07090c4 271ae702 [1-11855.7256] b920: 00000001 c850b9a4 c0428254 80000000 c07090c4 cd398480 d2e8b734 00000011 [1-11855.7338] b940: d1708780 000000c6 c070a6b8 c0708b48 c850b9a4 c850b960 c0451dd0 c04515b4 [1-11855.7420] b960: c070a6b8 cd398480 cd398480 00000001 fafaa8c0 faffffef 00000001 c053f49c [1-11855.7502] b980: c070a1a8 cd398480 c0737500 d4b01a40 00000008 c0708b48 c850b9b4 c850b9a8 [1-11855.7584] b9a0: c0451ec0 c0451924 c850b9d4 c850b9b8 c042836c c0451eac cd398480 00000000 [1-11855.7666] b9c0: cd398480 d4b01a40 c850b9fc c850b9d8 c0428988 c0428260 00000000 c0428254 [1-11855.7747] b9e0: 80000000 c850b9f4 c04284d0 00295a38 c850ba24 c850ba00 c0428798 c0428908 [1-11855.7829] ba00: d2e8b720 cd398480 c0737500 d2e8b720 cd398480 d4b01a40 c850ba54 c850ba28 [1-11855.7911] ba20: c0428cb8 c04284dc 00000000 c04284d0 80000000 c850baec c070a728 c0708b34 [1-11855.7993] ba40: 00000000 00000000 c850baa4 c850ba58 c03f69d4 c04289a0 c850ba8c 00000000 [1-11855.8075] ba60: c850a000 c0707cc4 c04686a4 cd398480 c850ba9c c0708b48 c0044970 d7c828c4 [1-11855.8157] ba80: 00000000 cd398480 c0707cc4 00000001 d7c82800 d7c82814 c850babc c850baa8 [1-11855.8238] baa0: c03f7038 c03f6510 d7c828c4 00000000 c850baec c850bac0 c03f8584 c03f7024 [1-11855.8320] bac0: d4f15780 d7c82800 c0707cc4 00000001 0000012c 00000040 d7c828c4 c850a000 [1-11855.8402] bae0: c850bb2c c850baf0 c03f82e4 c03f84a4 600d0013 002d3349 c850a030 d7c82808 [1-11855.8484] bb00: c004400c 00000001 c06f8090 00000003 c850a000 c850a030 3f907f7c c06f808c [1-11855.8566] bb20: c850bb7c c850bb30 c0044460 c03f81ec c007fd20 c850bb78 c850bb64 00000001 [1-11855.8648] bb40: 002d3348 00400100 0000000a 00000101 cd399380 600d0013 c0707cc4 c850a000 [1-11855.8729] bb60: d1708780 cbdf7800 d4b01a40 fafaa8c0 c850bb9c c850bb80 c0044708 c00442ec [1-11855.8811] bb80: c850a020 00000000 cd399380 d1708780 c850bbb4 c850bba0 c03f56f0 c00446a0 [1-11855.8893] bba0: cd398480 00000000 c850bbcc c850bbb8 c03f57ec c03f56ac cd398480 00000000 [1-11855.8975] bbc0: c850bc04 c850bbd0 c042da08 c03f5724 d4b01a40 c03f5718 80000000 c04170dc [1-11855.9057] bbe0: cd399380 c0737500 c0737500 cbdf7800 d2e8b734 000000c6 c850bc1c c850bc08 [1-11855.9139] bc00: c042d3cc c042d900 cd399380 c0737500 c850bc34 c850bc20 c042e5bc c042d3a0 [1-11855.9220] bc20: cd399380 00000000 c850bc6c c850bc38 c044e400 c042e5a8 c850bc6c c850bc48 [1-11855.9302] bc40: c04260b4 cbdf7800 c850bf5c faffffef cd399380 000000be 00000000 c850bcbc [1-11855.9384] bc60: c850bd4c c850bc70 c04505b4 c044e1bc 000000c6 00000008 c850bcac c850bca8 [1-11855.9466] bc80: 00004000 c850bc90 c0248608 00000000 cbdf7a3c 00000000 c042c908 fafaa8c0 [1-11855.9548] bca0: 00000000 00006c07 00000000 faffffef 00000000 00000000 c850bc00 00000141 [1-11855.9630] bcc0: 00000001 00000000 02110000 00000000 fafaa8c0 faffffef 730f6c07 00000002 [1-11855.9712] bce0: 00000011 00000001 00000000 00000000 00000000 6c070002 00000000 faffffef [1-11855.9793] bd00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 271ae702 [1-11855.9875] bd20: c0044b04 cbdf7800 c850bdb0 c850bf5c 000000be c850bf5c 00004000 000000be [1-11855.9957] bd40: c850bd6c c850bd50 c04587a8 c044ff18 c4cda300 000000be c850bf5c c8406e40 [1-11856.0039] bd60: c850be2c c850bd70 c03e2624 c0458720 00000001 00000001 d5bbc640 000000be [1-11856.0121] bd80: c4cda300 c850bd90 00000000 c850bf5c c850be0c c850bda0 c014bce4 c04d2970 [1-11856.0203] bda0: c850bdbc c0044840 c850a008 c0707cc4 00000001 00000000 00000000 00000000 [1-11856.0284] bdc0: 00000000 c8406e40 00000000 00000000 00000000 00000000 c850bd70 00000000 [1-11856.0366] bde0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [1-11856.0448] be00: 00000000 00000000 00000000 00000000 00000000 c850be7c 00000000 c4cda300 [1-11856.0530] be20: c850bf4c c850be30 c03e3c2c c03e2590 c04d29d0 c850be3c 00000000 00258b0c [1-11856.0612] be40: 000000be c850be50 c044fb60 c04d29b0 c850be84 c0044840 c850a038 c0707cc4 [1-11856.0694] be60: c03e7024 00000f73 c850be94 c850be78 c0044840 c006dc8c c03e7024 00000000 [1-11856.0775] be80: cbdf7838 00000f73 c850beac c850be98 c04d29d0 c0044764 cbdf7800 6c070002 [1-11856.0857] bea0: faffffef 00000000 00000000 c04d29b0 cbdf7800 00000000 00000002 00000f73 [1-11856.0939] bec0: c0011744 c850a000 c850bef4 c850bed8 c0458a5c c03e4394 c4cda300 00000010 [1-11856.1021] bee0: c0707408 bdfda568 c850bfa4 c850bef8 c850bf1c c850bf00 c850bf24 c016d2d4 [1-11856.1103] bf00: d0e0ef00 00000023 c850bf34 c850bf18 c016d2d4 00004000 bdfda694 271ae702 [1-11856.1185] bf20: c0011744 c4cda300 00004000 bdfda694 00000128 c0011744 c850a000 00000000 [1-11856.1266] bf40: c850bf94 c850bf50 c03e4db4 c03e3a98 c00c7220 00000001 fffffff7 c850be9c [1-11856.1348] bf60: 00000010 c850be3c 00000001 00000000 00000000 00004000 00000128 002841c0 [1-11856.1430] bf80: bdfda60c bdfda694 c850bfa4 c850bf98 c03e4df0 c03e4d64 00000000 c850bfa8 [1-11856.1512] bfa0: c00114c0 c03e4de4 002841c0 bdfda60c 00000023 bdfda694 00004000 00000001 [1-11856.1594] bfc0: 002841c0 bdfda60c bdfda694 00000128 bdfda678 00000002 bdfda65c bdfda744 [1-11856.1676] bfe0: 00000000 bdfda5c0 00000000 b5cf34e4 800d0010 00000023 5a5a5a5a 5a5a5a5a [1-11856.1757] Backtrace: [1-11856.1782] [<c045ea38>] (fib_compute_spec_dst+0x0/0x17c) from [<c04308c0>] (ipv4_pktinfo_prepare+0x38/0x70) [1-11856.1880] r6:00000000 r5:c5d55800 r4:c5d55800 [1-11856.1926] [<c0430888>] (ipv4_pktinfo_prepare+0x0/0x70) from [<c04512d4>] (udp_queue_rcv_skb+0x1c8/0x384) [1-11856.2023] r5:c5d55800 r4:cbdf4380 [1-11856.2059] [<c045110c>] (udp_queue_rcv_skb+0x0/0x384) from [<c0451590>] (flush_stack+0x100/0x118) [1-11856.2148] r7:cd398480 r6:00000000 r5:cbdf4380 r4:c5d55800 [1-11856.2205] [<c0451490>] (flush_stack+0x0/0x118) from [<c04518b0>] (__udp4_lib_mcast_deliver.isra.44+0x308/0x370) [1-11856.2308] [<c04515a8>] (__udp4_lib_mcast_deliver.isra.44+0x0/0x370) from [<c0451dd0>] (__udp4_lib_rcv+0x4b8/0x588) [1-11856.2413] [<c0451918>] (__udp4_lib_rcv+0x0/0x588) from [<c0451ec0>] (udp_rcv+0x20/0x28) [1-11856.2495] [<c0451ea0>] (udp_rcv+0x0/0x28) from [<c042836c>] (ip_local_deliver_finish+0x118/0x27c) [1-11856.2585] [<c0428254>] (ip_local_deliver_finish+0x0/0x27c) from [<c0428988>] (ip_local_deliver+0x8c/0x98) [1-11856.2683] r7:d4b01a40 r6:cd398480 r5:00000000 r4:cd398480 [1-11856.2740] [<c04288fc>] (ip_local_deliver+0x0/0x98) from [<c0428798>] (ip_rcv_finish+0x2c8/0x344) [1-11856.2829] r4:00295a38 [1-11856.2855] [<c04284d0>] (ip_rcv_finish+0x0/0x344) from [<c0428cb8>] (ip_rcv+0x324/0x3f0) [1-11856.2936] r7:d4b01a40 r6:cd398480 r5:d2e8b720 r4:c0737500 [1-11856.2993] [<c0428994>] (ip_rcv+0x0/0x3f0) from [<c03f69d4>] (__netif_receive_skb_core+0x4d0/0x568) [1-11856.3084] r7:00000000 r6:00000000 r5:c0708b34 r4:c070a728 [1-11856.3141] [<c03f6504>] (__netif_receive_skb_core+0x0/0x568) from [<c03f7038>] (__netif_receive_skb+0x20/0x70) [1-11856.3242] [<c03f7018>] (__netif_receive_skb+0x0/0x70) from [<c03f8584>] (process_backlog+0xec/0x1e8) [1-11856.3335] r5:00000000 r4:d7c828c4 [1-11856.3371] [<c03f8498>] (process_backlog+0x0/0x1e8) from [<c03f82e4>] (net_rx_action+0x104/0x2b8) [1-11856.3460] [<c03f81e0>] (net_rx_action+0x0/0x2b8) from [<c0044460>] (__do_softirq+0x180/0x304) [1-11856.3548] [<c00442e0>] (__do_softirq+0x0/0x304) from [<c0044708>] (do_softirq+0x74/0xc4) [1-11856.3630] [<c0044694>] (do_softirq+0x0/0xc4) from [<c03f56f0>] (netif_rx_ni+0x50/0x78) [1-11856.3711] r7:d1708780 r6:cd399380 r5:00000000 r4:c850a020 [1-11856.3768] [<c03f56a0>] (netif_rx_ni+0x0/0x78) from [<c03f57ec>] (dev_loopback_xmit+0xd4/0xe0) [1-11856.3855] r5:00000000 r4:cd398480 [1-11856.3891] [<c03f5718>] (dev_loopback_xmit+0x0/0xe0) from [<c042da08>] (ip_mc_output+0x114/0x234) [1-11856.3980] r5:00000000 r4:cd398480 [1-11856.4016] [<c042d8f4>] (ip_mc_output+0x0/0x234) from [<c042d3cc>] (ip_local_out+0x38/0x3c) [1-11856.4100] r9:000000c6 r8:d2e8b734 r7:cbdf7800 r6:c0737500 r5:c0737500 r4:cd399380 [1-11856.4179] [<c042d394>] (ip_local_out+0x0/0x3c) from [<c042e5bc>] (ip_send_skb+0x20/0x88) [1-11856.4261] r5:c0737500 r4:cd399380 [1-11856.4297] [<c042e59c>] (ip_send_skb+0x0/0x88) from [<c044e400>] (udp_send_skb+0x250/0x314) [1-11856.4382] r5:00000000 r4:cd399380 [1-11856.4417] [<c044e1b0>] (udp_send_skb+0x0/0x314) from [<c04505b4>] (udp_sendmsg+0x6a8/0x6d0) [1-11856.4503] [<c044ff0c>] (udp_sendmsg+0x0/0x6d0) from [<c04587a8>] (inet_sendmsg+0x94/0xc4) [1-11856.4586] [<c0458714>] (inet_sendmsg+0x0/0xc4) from [<c03e2624>] (sock_sendmsg+0xa0/0xbc) [1-11856.4670] r7:c8406e40 r6:c850bf5c r5:000000be r4:c4cda300 [1-11856.4726] [<c03e2584>] (sock_sendmsg+0x0/0xbc) from [<c03e3c2c>] (___sys_sendmsg.part.16+0x1a0/0x244) [1-11856.4820] r7:c4cda300 r6:00000000 r5:c850be7c r4:00000000 [1-11856.4877] [<c03e3a8c>] (___sys_sendmsg.part.16+0x0/0x244) from [<c03e4db4>] (__sys_sendmsg+0x5c/0x80) [1-11856.4971] [<c03e4d58>] (__sys_sendmsg+0x0/0x80) from [<c03e4df0>] (SyS_sendmsg+0x18/0x1c) [1-11856.5055] r6:bdfda694 r5:bdfda60c r4:002841c0 [1-11856.5101] [<c03e4dd8>] (SyS_sendmsg+0x0/0x1c) from [<c00114c0>] (ret_fast_syscall+0x0/0x48) [1-11856.5186] Code: eb01ab02 e5952180 e3520000 1a000000 (e7f001f2) [1-11856.5250] sdp-mmc 100000.mmc: PREQ: polling request enter! [1-11858.7396] ---[ end trace ce942fb9e91b331e ]--- [1-11858.7442] sdp-mmc 100000.mmc: PREQ: polling isr & tasklet [1-11858.7498] sdp-mmc 100000.mmc: PREQ: run mmch_tasklet(event 0x00000001, accum 0x00000001) [1-11858.7580] sdp-mmc 100000.mmc: PREQ: run mmch_tasklet(event 0x00001012, accum 0x00001013) [1-11858.7663] sdp-mmc 100000.mmc: PREQ: start busy waitting.. [1-11858.7719] sdp-mmc 100000.mmc: PREQ: end polling request, wait 0ms [1-11858.7781] [SELP] while loop ... please attach T32...
