PascalC, could you please test the latest upstream kernel available from the very top line at the top of the page (the release names are irrelevant for testing, and please do not test the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.
If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested exactly shown as: kernel-fixed-upstream-3.19-rc2 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Changed in: linux (Ubuntu) Importance: Low => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in 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]() Status in linux package in Ubuntu: Incomplete Status in v4l-utils package in Ubuntu: Invalid Bug description: Found theses warnings when using the webcam on flash site under firefox. [418114.773634] ------------[ cut here ]------------ [418114.773674] WARNING: 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]() [418114.773677] Modules linked in: btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc snd_hrtimer nfsv3 rpcsec_gss_krb5 nfsv4 ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr bnep iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi rfcomm bluetooth 6lowpan_iphc nfsd auth_rpcgss binfmt_misc nfs_acl nfs lockd sunrpc fscache dm_crypt ir_lirc_codec lirc_dev ir_rc5_decoder ir_mce_kbd_decoder ir_sharp_decoder ir_jvc_decoder ir_sony_decoder ir_sanyo_decoder ir_rc6_decoder ir_nec_decoder rc_rc6_mce mceusb rc_core pl2303 usbserial snd_hda_codec_realtek uvcvideo videobuf2_vmalloc [418114.773763] videobuf2_memops snd_hda_codec_generic snd_usb_audio videobuf2_core v4l2_common snd_hda_intel videodev snd_hda_controller media joydev snd_usbmidi_lib snd_hda_codec snd_hwdep coretemp snd_pcm kvm_intel snd_seq_midi dm_multipath kvm snd_seq_midi_event scsi_dh snd_rawmidi snd_seq snd_seq_device serio_raw snd_timer cuse snd lpc_ich parport_pc soundcore ppdev mac_hid lp parport i915 hid_generic e1000e ptp video i2c_algo_bit drm_kms_helper usbhid drm firewire_ohci hid pata_acpi firewire_core crc_itu_t pps_core [418114.773829] CPU: 1 PID: 11025 Comm: plugin-containe Tainted: G W 3.16.0-23-lowlatency #31-Ubuntu [418114.773833] Hardware name: AOpen i965GMx-IF/i965GMx-IF, BIOS 6.00 PG 10/03/2008 [418114.773836] 0000000000000009 ffff8800115c7c00 ffffffff8177ec5d 0000000000000000 [418114.773843] ffff8800115c7c38 ffffffff8107183d 0000000000000000 0000000000000000 [418114.773848] ffff88008b044af0 ffff88008b0448d8 ffff8801215cb180 ffff8800115c7c48 [418114.773854] Call Trace: [418114.773867] [<ffffffff8177ec5d>] dump_stack+0x4d/0x6f [418114.773875] [<ffffffff8107183d>] warn_slowpath_common+0x7d/0xa0 [418114.773881] [<ffffffff8107191a>] warn_slowpath_null+0x1a/0x20 [418114.773893] [<ffffffffc0701596>] __vb2_queue_cancel+0x116/0x180 [videobuf2_core] [418114.773905] [<ffffffffc0702cf5>] vb2_internal_streamoff+0x35/0x90 [videobuf2_core] [418114.773916] [<ffffffffc0702db5>] vb2_streamoff+0x65/0x70 [videobuf2_core] [418114.773928] [<ffffffffc075e855>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [418114.773939] [<ffffffffc076360a>] uvc_video_enable+0x4a/0x1b0 [uvcvideo] [418114.773958] [<ffffffffc07601e2>] uvc_v4l2_do_ioctl+0x962/0x14b0 [uvcvideo] [418114.773962] [<ffffffff81192373>] ? copy_page_from_iter_iovec+0x183/0x2d0 [418114.773976] [<ffffffffc06e02c6>] video_usercopy+0x366/0x600 [videodev] [418114.773979] [<ffffffff811e4bd9>] ? __sb_start_write+0x49/0xf0 [418114.773985] [<ffffffffc075f880>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [418114.773988] [<ffffffff811e4b61>] ? __sb_end_write+0x31/0x60 [418114.773992] [<ffffffff811eaad3>] ? pipe_write+0x393/0x450 [418114.773997] [<ffffffffc075ec3f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [418114.774004] [<ffffffffc06da734>] v4l2_ioctl+0x154/0x190 [videodev] [418114.774008] [<ffffffff811f6468>] do_vfs_ioctl+0x2c8/0x4a0 [418114.774011] [<ffffffff812007de>] ? __fget+0x6e/0xb0 [418114.774029] [<ffffffff811f66c1>] SyS_ioctl+0x81/0xa0 [418114.774039] [<ffffffff8178666d>] system_call_fastpath+0x1a/0x1f [418114.774084] ---[ end trace 36d13fa659268ece ]--- --- ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: pascal 3770 F.... pulseaudio /dev/snd/pcmC0D0p: pascal 3770 F...m pulseaudio /dev/snd/controlC0: pascal 3770 F.... pulseaudio CurrentDesktop: KDE DistroRelease: Ubuntu 14.10 HibernationDevice: RESUME=UUID=6e95fe83-ffc6-4f37-b81c-984d3bf3dc85 InstallationDate: Installed on 2011-10-23 (1125 days ago) InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) IwConfig: eth0 no wireless extensions. virbr0 no wireless extensions. lo no wireless extensions. MachineType: AOpen i965GMx-IF Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-lowlatency root=UUID=6326dfb7-36be-4eae-85b8-e49695f3f331 ro security=selinux selinux=1 ProcVersionSignature: Ubuntu 3.16.0-24.32-lowlatency 3.16.4 RelatedPackageVersions: linux-restricted-modules-3.16.0-24-lowlatency N/A linux-backports-modules-3.16.0-24-lowlatency N/A linux-firmware 1.138 RfKill: Tags: utopic Uname: Linux 3.16.0-24-lowlatency x86_64 UpgradeStatus: Upgraded to utopic on 2014-10-24 (28 days ago) UserGroups: adm admin cdrom dialout disk fuse kvm libvirtd lpadmin plugdev _MarkForUpload: True dmi.bios.date: 10/03/2008 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 6.00 PG dmi.board.name: i965GMx-IF dmi.board.vendor: AOpen dmi.board.version: 558EX10I690 dmi.chassis.type: 3 dmi.chassis.vendor: AOpen dmi.chassis.version: i965GMx-IF dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd10/03/2008:svnAOpen:pni965GMx-IF:pvrAO00001JW:rvnAOpen:rni965GMx-IF:rvr558EX10I690:cvnAOpen:ct3:cvri965GMx-IF: dmi.product.name: i965GMx-IF dmi.product.version: AO00001JW dmi.sys.vendor: AOpen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388239/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp