I have slightly different stacktrace, but the warning is the same. [ 137.003774] usb 1-1.6: new full-speed USB device number 4 using ehci-pci [ 137.103709] usb 1-1.6: New USB device found, idVendor=04da, idProduct=2318 [ 137.103714] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 137.103717] usb 1-1.6: Product: DVC [ 137.103720] usb 1-1.6: Manufacturer: Panasonic [ 137.103731] usb 1-1.6: SerialNumber: 1146aa67 [ 137.131864] media: Linux media interface: v0.10 [ 137.139750] Linux video capture interface: v2.00 [ 137.143803] usbcore: registered new interface driver snd-usb-audio [ 137.157555] uvcvideo: Found UVC 1.00 device DVC (04da:2318) [ 137.162598] usbcore: registered new interface driver uvcvideo [ 137.162604] USB Video Class driver (1.1.1) [ 137.231417] uvcvideo: Failed to submit URB 0 (-28). [ 137.231728] ------------[ cut here ]------------ [ 137.231736] WARNING: CPU: 0 PID: 2505 at /build/buildd/linux-3.16.0/drivers/media/v4l2-core/videobuf2-core.c:2120 __vb2_queue_cancel+0x116/0x180 [videobuf2_core]() [ 137.231738] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common snd_usb_audio videodev snd_usbmidi_lib media snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic bnep intel_rapl rfcomm x86_pkg_temp_thermal intel_powerclamp coretemp bluetooth kvm_intel 6lowpan_iphc kvm snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep crct10dif_pclmul snd_pcm snd_seq_midi crc32_pclmul snd_seq_midi_event ghash_clmulni_intel hid_generic snd_rawmidi gpio_ich aesni_intel usbhid mei_me hid aes_x86_64 mei lrw gf128mul glue_helper snd_seq ablk_helper cryptd snd_seq_device snd_timer snd serio_raw soundcore tpm_infineon shpchp lpc_ich mac_hid parport_pc ppdev lp parport nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper ahci drm r8169 libahci mii wmi [ 137.231790] CPU: 0 PID: 2505 Comm: skype Not tainted 3.16.0-24-generic #32-Ubuntu [ 137.231792] Hardware name: MSI MS-7681/P67A-GD53 (MS-7681), BIOS V1.9 03/02/2011 [ 137.231794] 0000000000000009 ffff88022613bae8 ffffffff8177fcbc 0000000000000000 [ 137.231796] ffff88022613bb20 ffffffff8106fd8d 0000000000000000 0000000000000000 [ 137.231799] ffff8800ad4a8af0 ffff8800ad4a88d8 ffff8800358a96c0 ffff88022613bb30 [ 137.231801] Call Trace: [ 137.231808] [<ffffffff8177fcbc>] dump_stack+0x45/0x56 [ 137.231812] [<ffffffff8106fd8d>] warn_slowpath_common+0x7d/0xa0 [ 137.231823] [<ffffffff8106fe6a>] warn_slowpath_null+0x1a/0x20 [ 137.231827] [<ffffffffc0801596>] __vb2_queue_cancel+0x116/0x180 [videobuf2_core] [ 137.231832] [<ffffffffc0802cf5>] vb2_internal_streamoff+0x35/0x90 [videobuf2_core] [ 137.231836] [<ffffffffc0802db5>] vb2_streamoff+0x65/0x70 [videobuf2_core] [ 137.231839] [<ffffffffc07e6855>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [ 137.231843] [<ffffffffc07eb701>] uvc_video_enable+0x141/0x1b0 [uvcvideo] [ 137.231847] [<ffffffffc07e8935>] uvc_v4l2_do_ioctl+0x10b5/0x14b0 [uvcvideo] [ 137.231851] [<ffffffff811c3559>] ? __kmalloc+0x169/0x260 [ 137.231858] [<ffffffffc07c2fdf>] ? video_usercopy+0x7f/0x5d0 [videodev] [ 137.231863] [<ffffffffc07c32c6>] video_usercopy+0x366/0x5d0 [videodev] [ 137.231866] [<ffffffffc07e7880>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [ 137.231870] [<ffffffff811a7917>] ? remap_vmalloc_range_partial+0x87/0xc0 [ 137.231873] [<ffffffffc07e6c3f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [ 137.231878] [<ffffffffc07bd734>] v4l2_ioctl+0x154/0x190 [videodev] [ 137.231884] [<ffffffffc07cc8fb>] do_video_ioctl+0x27b/0x1500 [videodev] [ 137.231888] [<ffffffff811a00cf>] ? do_mmap_pgoff+0x31f/0x400 [ 137.231892] [<ffffffff81187c09>] ? vm_mmap_pgoff+0x99/0xc0 [ 137.231898] [<ffffffffc07cdbf2>] v4l2_compat_ioctl32+0x72/0xad [videodev] [ 137.231901] [<ffffffff81234ac0>] compat_SyS_ioctl+0xc0/0x320 [ 137.231904] [<ffffffff8178a4dc>] sysenter_dispatch+0x7/0x21 [ 137.231905] ---[ end trace bbfafd9db4b1a20e ]---
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1388239 Title: CPU: 1 PID: 11025 at /build/buildd/linux-3.16.0/drivers/media/v4l2-core/videobuf2-core.c:2120 __vb2_queue_cancel+0x116/0x180 [videobuf2_core]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388239/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
