Description of problem: Testing built in web cam with "cheese" application. failed to produce any picture with error message "there was an error playing video from the webcam" Running Fedora 21 as guest in VirtualBox 4.3.16 r95972 with Guest additions installed. Host machine is Thinkpad 420 running Fedora 20 web cam is working with same application on host machine. Additional info: reporter: libreport-2.2.3 WARNING: CPU: 0 PID: 2670 at drivers/media/v4l2-core/videobuf2-core.c:2117 __vb2_queue_cancel+0x116/0x180 [videobuf2_core]() Modules linked in: vfat fat uas usb_storage btusb uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media nls_utf8 isofs bnep bluetooth fuse xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT cfg80211 rfkill xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw snd_intel8x0 snd_ac97_codec ac97_bus snd_seq snd_seq_device snd_pcm snd_timer joydev snd ppdev serio_raw parport_pc i2c_piix4 microcode i2c_core soundcore parport e1000 ata_generic pata_acpi CPU: 0 PID: 2670 Comm: video_source:sr Not tainted 3.16.3-300.fc21.x86_64 #1 Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 0000000000000000 00000000951504ba ffff88004c21bbd8 ffffffff8171cab5 0000000000000000 ffff88004c21bc10 ffffffff8108f25d 0000000000000000 0000000000000000 ffff880035c232f0 ffff880035c230d8 ffff88004baaca00 Call Trace: [<ffffffff8171cab5>] dump_stack+0x45/0x56 [<ffffffff8108f25d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8108f38a>] warn_slowpath_null+0x1a/0x20 [<ffffffffa036f596>] __vb2_queue_cancel+0x116/0x180 [videobuf2_core] [<ffffffffa0370ce5>] vb2_internal_streamoff+0x35/0x90 [videobuf2_core] [<ffffffffa0370da5>] vb2_streamoff+0x65/0x70 [videobuf2_core] [<ffffffffa0380885>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa03857b1>] uvc_video_enable+0x141/0x1b0 [uvcvideo] [<ffffffffa0382776>] uvc_v4l2_do_ioctl+0xec6/0x14c0 [uvcvideo] [<ffffffff81061fc2>] ? get_user_pages_fast+0x152/0x1e0 [<ffffffffa033f3e6>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffff811035db>] ? get_futex_key+0x1db/0x2f0 [<ffffffffa03818b0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffff81103d80>] ? futex_wake+0x80/0x160 [<ffffffffa0380c2f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa0339754>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffff81212200>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff81212461>] SyS_ioctl+0x81/0xa0 [<ffffffff81723929>] system_call_fastpath+0x16/0x1b Potential duplicate: bug 1122286
Created attachment 943197 [details] File: dmesg
Getting a similar WARN on F21 with VMWare Player 6.0.4. Driver previously worked on F20. Nov 25 10:01:33 nick-f20 kernel: ------------[ cut here ]------------ Nov 25 10:01:33 nick-f20 kernel: WARNING: CPU: 1 PID: 28016 at drivers/media/v4l2-core/videobuf2-core.c:2144 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Nov 25 10:01:33 nick-f20 kernel: Modules linked in: lp vsock rfcomm ccm xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT fuse xt_conntrack ebt Nov 25 10:01:33 nick-f20 kernel: videobuf2_memops videobuf2_core snd v4l2_common videodev soundcore vmw_vmci media serio_raw i2c_piix4 shpchp parport_pc parport joydev binfmt_misc vmwgfx drm_kms_h Nov 25 10:01:33 nick-f20 kernel: CPU: 1 PID: 28016 Comm: V4L2Thread Tainted: G W OE 3.17.3-300.fc21.x86_64 #1 Nov 25 10:01:33 nick-f20 kernel: Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 Nov 25 10:01:33 nick-f20 kernel: 0000000000000000 00000000e5298a54 ffff880016607bd8 ffffffff8173f509 Nov 25 10:01:33 nick-f20 kernel: 0000000000000000 ffff880016607c10 ffffffff810970ad 0000000000000000 Nov 25 10:01:33 nick-f20 kernel: 0000000000000000 ffff88022e4a82f0 ffff88022e4a80d8 ffff88004bc99300 Nov 25 10:01:33 nick-f20 kernel: Call Trace: Nov 25 10:01:33 nick-f20 kernel: [<ffffffff8173f509>] dump_stack+0x45/0x56 Nov 25 10:01:33 nick-f20 kernel: [<ffffffff810970ad>] warn_slowpath_common+0x7d/0xa0 Nov 25 10:01:33 nick-f20 kernel: [<ffffffff810971da>] warn_slowpath_null+0x1a/0x20 Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01c55fe>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01c6e15>] vb2_internal_streamoff+0x35/0xd0 [videobuf2_core] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01c6f15>] vb2_streamoff+0x65/0x70 [videobuf2_core] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01d7875>] uvc_queue_enable+0x65/0xa0 [uvcvideo] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01dc7a1>] uvc_video_enable+0x141/0x1b0 [uvcvideo] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01d9766>] uvc_v4l2_do_ioctl+0xec6/0x14c0 [uvcvideo] Nov 25 10:01:33 nick-f20 kernel: [<ffffffff811c6ade>] ? vma_gap_callbacks_rotate+0x1e/0x30 Nov 25 10:01:33 nick-f20 kernel: [<ffffffff81388011>] ? __rb_insert_augmented+0x91/0x220 Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa0186686>] video_usercopy+0x366/0x5d0 [videodev] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01d88a0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa01d7c1f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] Nov 25 10:01:33 nick-f20 kernel: [<ffffffffa0180754>] v4l2_ioctl+0x154/0x190 [videodev] Nov 25 10:01:33 nick-f20 kernel: [<ffffffff81220630>] do_vfs_ioctl+0x2d0/0x4b0 Nov 25 10:01:33 nick-f20 kernel: [<ffffffff81220891>] SyS_ioctl+0x81/0xa0 Nov 25 10:01:33 nick-f20 kernel: [<ffffffff81135da6>] ? __audit_syscall_exit+0x1f6/0x2a0 Nov 25 10:01:33 nick-f20 kernel: [<ffffffff817466a9>] system_call_fastpath+0x16/0x1b Nov 25 10:01:33 nick-f20 kernel: ---[ end trace 8ec32374670cd438 ]---
Sorry, forgot to add: kernel version "kernel-core-3.17.3-300.fc21.x86_64"
Description of problem: start cheese and see my face press Fn(button)+WebCam(button) see error in cheese see report with bug from abrt Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.17.4-301.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.lvm.lv=fedora/root rhgb quiet LANG=ru_RU.UTF-8 kernel: 3.17.4-301.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 2 PID: 2666 at drivers/media/v4l2-core/videobuf2-core.c:2144 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: bnep bluetooth fuse xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw vfat fat snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core x86_pkg_temp_thermal v4l2_common snd_hda_codec coretemp videodev kvm snd_hwdep crct10dif_pclmul crc32_pclmul snd_seq arc4 ath9k ath9k_common ath9k_hw crc32c_intel media snd_seq_device snd_pcm ghash_clmulni_intel ath mei_me snd_timer mac80211 iTCO_wdt iTCO_vendor_support cfg80211 rfkill snd i2c_i801 mei serio_raw soundcore lpc_ich mfd_core shpchp i915 i2c_algo_bit drm_kms_helper drm r8169 mii video CPU: 2 PID: 2666 Comm: gdbus Not tainted 3.17.4-301.fc21.x86_64 #1 Hardware name: To be filled by O.E.M. To be filled by O.E.M./ChiefRiver, BIOS X300D DN.04 12/27/2013 0000000000000000 000000003cd0b8ac ffff8800a233bb30 ffffffff8173f929 0000000000000000 ffff8800a233bb68 ffffffff810970ad 0000000000000000 0000000000000000 ffff8801176dcaf0 ffff8801176dc8d8 ffff8800abd023c0 Call Trace: [<ffffffff8173f929>] dump_stack+0x45/0x56 [<ffffffff810970ad>] warn_slowpath_common+0x7d/0xa0 [<ffffffff810971da>] warn_slowpath_null+0x1a/0x20 [<ffffffffa04f45fe>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa04f5e15>] vb2_internal_streamoff+0x35/0xd0 [videobuf2_core] [<ffffffffa04f5f15>] vb2_streamoff+0x65/0x70 [videobuf2_core] [<ffffffffa04d3875>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa04d86aa>] uvc_video_enable+0x4a/0x1b0 [uvcvideo] [<ffffffffa04d3b62>] uvc_v4l2_release+0xb2/0xf0 [uvcvideo] [<ffffffffa0660498>] v4l2_release+0x38/0x80 [videodev] [<ffffffff8120e24c>] __fput+0xdc/0x1f0 [<ffffffff8120e3ae>] ____fput+0xe/0x10 [<ffffffff810b3964>] task_work_run+0xd4/0xf0 [<ffffffff810998a2>] do_exit+0x392/0xaa0 [<ffffffff810bf9c9>] ? ttwu_do_wakeup+0x19/0xd0 [<ffffffff8109a033>] do_group_exit+0x43/0xc0 [<ffffffff810a5ab5>] get_signal+0x2a5/0x6b0 [<ffffffff810135d7>] do_signal+0x37/0x800 [<ffffffff81257497>] ? eventfd_ctx_read+0x67/0x210 [<ffffffff81013e09>] do_notify_resume+0x69/0xb0 [<ffffffff81746da2>] int_signal+0x12/0x17
Description of problem: Open the video preferences in HipChat and closed it immediately. Webcam LED only had the time to blink. Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.17.4-302.fc21.x86_64 root=/dev/mapper/SSD-root ro rd.luks.uuid=luks-a8c8fa59-6f3c-4c2e-a400-cfadf4276b80 rd.md=0 rd.dm=0 rd.lvm.lv=SSD/swap vconsole.font=latarcyrheb-sun16 vconsole.keymap=uk rd.lvm.lv=SSD/root rhgb quiet crashkernel=128M LANG=en_GB.UTF-8 elevator=deadline kernel: 3.17.4-302.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 2 PID: 31452 at drivers/media/v4l2-core/videobuf2-core.c:2144 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink ccm fuse xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_MASQUERADE ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep btusb bluetooth iTCO_wdt iTCO_vendor_support uvcvideo snd_hda_codec_hdmi videobuf2_vmalloc snd_hda_codec_realtek videobuf2_memops videobuf2_core snd_hda_codec_generic arc4 x86_pkg_temp_thermal coretemp kvm_intel v4l2_common iwldvm videodev snd_hda_intel kvm mac80211 media snd_hda_controller snd_hda_codec cdc_acm snd_hwdep snd_seq snd_seq_device iwlwifi snd_pcm cfg80211 mei_me snd_timer joydev serio_raw thinkpad_acpi mei sdhci_pci sdhci i2c_i801 mmc_core lpc_ich mfd_core shpchp snd soundcore rfkill tpm_tis wmi binfmt_misc dm_crypt i915 crct10dif_pclmul crc32_pclmul crc32c_intel e1000e i2c_algo_bit drm_kms_helper cdc_mbim ghash_clmulni_intel ptp pps_core drm cdc_ncm usbnet cdc_wdm mii video ecryptfs encrypted_keys trusted tpm CPU: 2 PID: 31452 Comm: hipchat.bin Not tainted 3.17.4-302.fc21.x86_64 #1 Hardware name: LENOVO 2349KCG/2349KCG, BIOS G1ETA5WW (2.65 ) 04/15/2014 0000000000000000 00000000212448ef ffff880146857bd8 ffffffff8173f929 0000000000000000 ffff880146857c10 ffffffff810970ad 0000000000000000 0000000000000000 ffff880211193af0 ffff8802111938d8 ffff88005e336b80 Call Trace: [<ffffffff8173f929>] dump_stack+0x45/0x56 [<ffffffff810970ad>] warn_slowpath_common+0x7d/0xa0 [<ffffffff810971da>] warn_slowpath_null+0x1a/0x20 [<ffffffffa05ef5fe>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa05f0e15>] vb2_internal_streamoff+0x35/0xd0 [videobuf2_core] [<ffffffffa05f0f15>] vb2_streamoff+0x65/0x70 [videobuf2_core] [<ffffffffa0627875>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa062c6aa>] uvc_video_enable+0x4a/0x1b0 [uvcvideo] [<ffffffffa0628ff7>] uvc_v4l2_do_ioctl+0x757/0x14c0 [uvcvideo] [<ffffffff8110d393>] ? futex_wait+0x203/0x280 [<ffffffffa0604686>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffff8110ce60>] ? get_futex_key+0x250/0x2f0 [<ffffffffa06288a0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffff8110d590>] ? futex_wake+0x80/0x160 [<ffffffffa0627c1f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa05fe754>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffff81220910>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff81220b71>] SyS_ioctl+0x81/0xa0 [<ffffffff81135d86>] ? __audit_syscall_exit+0x1f6/0x2a0 [<ffffffff81746ae9>] system_call_fastpath+0x16/0x1b
Description of problem: Got this notification when opening the "settings" dialog in HipChat. I don't know if it's related or a coincidence. Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.17.6-300.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root rhgb quiet LANG=en_US.UTF-8 kernel: 3.17.6-300.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 1 PID: 2311 at drivers/media/v4l2-core/videobuf2-core.c:2144 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: fuse ccm rfcomm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common btusb bluetooth videodev media iTCO_wdt coretemp gpio_ich kvm_intel iTCO_vendor_support ppdev snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel dell_wmi sparse_keymap kvm snd_hda_controller sdhci_pci sdhci snd_hda_codec snd_hwdep mmc_core dell_laptop dcdbas arc4 snd_seq iwldvm mac80211 snd_seq_device iwlwifi snd_pcm joydev cfg80211 snd_timer snd rfkill mei_me mei serio_raw i2c_i801 lpc_ich mfd_core soundcore parport_pc tpm_tis tpm parport shpchp acpi_cpufreq nouveau e1000e mxm_wmi i2c_algo_bit firewire_ohci drm_kms_helper ttm firewire_core drm yenta_socket crc_itu_t ptp ata_generic pps_core pata_acpi wmi video CPU: 1 PID: 2311 Comm: hipchat.bin Not tainted 3.17.6-300.fc21.x86_64 #1 Hardware name: Dell Inc. Latitude E6500 /0X564R, BIOS A27 12/06/2011 0000000000000000 00000000738c7d91 ffff88007459fbd8 ffffffff8173f8aa 0000000000000000 ffff88007459fc10 ffffffff810970bd 0000000000000000 0000000000000000 ffff8800d9cd22f0 ffff8800d9cd20d8 ffff8800728fde80 Call Trace: [<ffffffff8173f8aa>] dump_stack+0x45/0x56 [<ffffffff810970bd>] warn_slowpath_common+0x7d/0xa0 [<ffffffff810971ea>] warn_slowpath_null+0x1a/0x20 [<ffffffffa06c95fe>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa06cae15>] vb2_internal_streamoff+0x35/0xd0 [videobuf2_core] [<ffffffffa06caf15>] vb2_streamoff+0x65/0x70 [videobuf2_core] [<ffffffffa06e5875>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa06ea6aa>] uvc_video_enable+0x4a/0x1b0 [uvcvideo] [<ffffffffa06e6ff7>] uvc_v4l2_do_ioctl+0x757/0x14c0 [uvcvideo] [<ffffffff8110d3a3>] ? futex_wait+0x203/0x280 [<ffffffffa062c686>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffff8110ce70>] ? get_futex_key+0x250/0x2f0 [<ffffffffa06e68a0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffff8110d5a0>] ? futex_wake+0x80/0x160 [<ffffffffa06e5c1f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa0626754>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffff81220910>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff81220b71>] SyS_ioctl+0x81/0xa0 [<ffffffff81135d96>] ? __audit_syscall_exit+0x1f6/0x2a0 [<ffffffff81746a69>] system_call_fastpath+0x16/0x1b
Description of problem: I installed the Cairo Desktop Package on my Fedora and configured it to launch at startup. For the first time it worked fine but now after every restart it raises this error. Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.17.7-300.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.lvm.lv=fedora/root rhgb quiet LANG=en_IN.UTF-8 kernel: 3.17.7-300.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 22801 at drivers/media/v4l2-core/videobuf2-core.c:2144 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: ccm vfat fat uas usb_storage rt2800pci ipt_MASQUERADE bnep bluetooth fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw uvcvideo videobuf2_vmalloc videobuf2_memops snd_hda_codec_hdmi snd_hda_codec_realtek videobuf2_core snd_hda_codec_generic arc4 snd_hda_intel snd_hda_controller rt2800mmio v4l2_common rt2800lib videodev snd_hda_codec snd_hwdep x86_pkg_temp_thermal coretemp rt2x00pci rt2x00mmio kvm_intel hp_wmi media kvm rt2x00lib sparse_keymap eeprom_93cx6 crct10dif_pclmul snd_seq snd_seq_device snd_pcm mac80211 cfg80211 crc_ccitt rfkill crc32_pclmul crc32c_intel ghash_clmulni_intel iTCO_wdt iTCO_vendor_support hp_accel lis3lv02d snd_timer lpc_ich wmi hp_wireless mfd_core shpchp snd serio_raw i2c_i801 input_polldev mei_me soundcore mei radeon i915 i2c_algo_bit ttm drm_kms_helper r8169 drm mii video [last unloaded: rt2800pci] CPU: 0 PID: 22801 Comm: plugin-containe Not tainted 3.17.7-300.fc21.x86_64 #1 Hardware name: Hewlett-Packard HP Pavilion 15 Notebook PC/1970, BIOS F.23 06/04/2014 0000000000000000 000000009c86560f ffff880005abbbd8 ffffffff817401ea 0000000000000000 ffff880005abbc10 ffffffff810970bd 0000000000000000 0000000000000000 ffff88009512c2f0 ffff88009512c0d8 ffff88000cb0cf00 Call Trace: [<ffffffff817401ea>] dump_stack+0x45/0x56 [<ffffffff810970bd>] warn_slowpath_common+0x7d/0xa0 [<ffffffff810971ea>] warn_slowpath_null+0x1a/0x20 [<ffffffffa06855fe>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa0686e15>] vb2_internal_streamoff+0x35/0xd0 [videobuf2_core] [<ffffffffa0686f15>] vb2_streamoff+0x65/0x70 [videobuf2_core] [<ffffffffa06c6875>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa06cb6aa>] uvc_video_enable+0x4a/0x1b0 [uvcvideo] [<ffffffffa06c7ff7>] uvc_v4l2_do_ioctl+0x757/0x14c0 [uvcvideo] [<ffffffff8120f458>] ? __sb_start_write+0x58/0x110 [<ffffffffa0636686>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffff81228bff>] ? touch_atime+0x10f/0x170 [<ffffffffa06c78a0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffff812157e0>] ? pipe_read+0x300/0x340 [<ffffffffa06c6c1f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa0630754>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffff81220ff0>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff81221251>] SyS_ioctl+0x81/0xa0 [<ffffffff817473a9>] system_call_fastpath+0x16/0x1b
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 21 kernel bugs. Fedora 21 has now been rebased to 3.18.3-201.fc21. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
Problem happened yesterday on fedora 21 with 3.18.3-201.fc21 on a Thinkpad T430.
Description of problem: I don't know if this is going to be a valid report because I was using Skype, but this happened when in a video call I turned off my video. Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.18.3-201.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.luks.uuid=luks-e3717597-a9c9-4f51-b52c-969e90e3586e rd.luks.uuid=luks-b50eed21-a3d9-4db9-a2a9-967e19dfe4a4 vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root rhgb quiet LANG=en_GB.UTF-8 kernel: 3.18.3-201.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 2 PID: 2025 at drivers/media/v4l2-core/videobuf2-core.c:2135 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: hid_logitech_dj ccm xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw arc4 intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm hp_wmi iTCO_wdt iTCO_vendor_support iwlmvm sparse_keymap ppdev mac80211 uvcvideo btusb bluetooth iwlwifi snd_hda_codec_idt videobuf2_vmalloc tpm_infineon snd_hda_codec_hdmi snd_hda_codec_generic videobuf2_core joydev cfg80211 videobuf2_memops snd_hda_intel v4l2_common serio_raw snd_hda_controller videodev snd_hda_codec snd_hwdep i2c_i801 snd_seq media rtsx_pci_ms snd_seq_device snd_pcm rfkill memstick mei_me lpc_ich shpchp mei wmi snd_timer parport_pc tpm_tis snd parport hp_accel lis3lv02d tpm input_polldev hp_wireless soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc dm_crypt uas usb_storage i915 rtsx_pci_sdmmc crct10dif_pclmul mmc_core crc32_pclmul i2c_algo_bit drm_kms_helper crc32c_intel e1000e drm ghash_clmulni_intel rtsx_pci mfd_core ptp pps_core video CPU: 2 PID: 2025 Comm: skype Not tainted 3.18.3-201.fc21.x86_64 #1 Hardware name: Hewlett-Packard HP EliteBook 840 G1/198F, BIOS L71 Ver. 01.21 09/03/2014 0000000000000000 000000004eb03baa ffff8802116579b8 ffffffff8175da66 0000000000000000 0000000000000000 ffff8802116579f8 ffffffff81099181 ffff8802116579f8 0000000000000000 0000000000000000 ffff880232a6fb18 Call Trace: [<ffffffff8175da66>] dump_stack+0x46/0x58 [<ffffffff81099181>] warn_slowpath_common+0x81/0xa0 [<ffffffff8109929a>] warn_slowpath_null+0x1a/0x20 [<ffffffffa052149e>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa05229f5>] vb2_internal_streamoff+0x35/0xc0 [videobuf2_core] [<ffffffffa0522aad>] vb2_streamoff+0x2d/0x50 [videobuf2_core] [<ffffffffa06878e5>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa068c76e>] uvc_video_enable+0x4e/0x1b0 [uvcvideo] [<ffffffffa0689093>] uvc_v4l2_do_ioctl+0x773/0x1510 [uvcvideo] [<ffffffff810cf857>] ? dequeue_entity+0x117/0x610 [<ffffffffa043f706>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffffa0688920>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffffa0687c9f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa0439784>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffffa0449e6b>] do_video_ioctl+0x27b/0x1530 [videodev] [<ffffffff81111b70>] ? futex_wake+0x80/0x160 [<ffffffff8131eea7>] ? inode_has_perm.isra.30+0x27/0x40 [<ffffffff8131f017>] ? file_has_perm+0xa7/0xb0 [<ffffffffa044b192>] v4l2_compat_ioctl32+0x72/0xad [videodev] [<ffffffff8126ab40>] compat_SyS_ioctl+0xf0/0x1270 [<ffffffff8101d639>] ? read_tsc+0x9/0x10 [<ffffffff811059e5>] ? ktime_get_ts64+0x45/0x100 [<ffffffff81766e4a>] sysenter_dispatch+0x7/0x21
Description of problem: Having problems w/Skype and sound. Repeatable with a video with Cheese It repeats also with kernels 3.18.3-201.fc21.x86_64 3.18.5-200.fc21.x86_64 3.18.7-200.fc21.x86_64 Did an update and rebooted. Only running Krusader and Konsole. Took a photo with Cheese from Logitech QuickCam Zoom, waited a few seconds and got this error. Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.18.7-200.fc21.x86_64 root=/dev/mapper/fedora_fry-root ro rd.lvm.lv=fedora_fry/root rhgb quiet LANG=en_CA.UTF-8 kernel: 3.18.7-200.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 1 PID: 2151 at drivers/media/v4l2-core/videobuf2-core.c:2135 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: fuse bnep bluetooth xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw arc4 snd_usb_audio snd_usbmidi_lib ath9k_htc ath9k_common ath9k_hw ath snd_rawmidi mac80211 pwc cfg80211 rfkill videobuf2_vmalloc videobuf2_core videobuf2_memops v4l2_common videodev powernow_k8 kvm_amd media joydev kvm snd_hda_codec_realtek snd_hda_codec_generic amd64_edac_mod edac_core snd_hda_intel snd_hda_controller serio_raw edac_mce_amd snd_hda_codec k8temp nv_tco snd_hwdep i2c_nforce2 snd_seq snd_seq_device shpchp snd_pcm snd_timer snd soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc uas usb_storage ata_generic hid_logitech_dj nouveau video mxm_wmi wmi i2c_algo_bit drm_kms_helper ttm drm firewire_ohci pata_acpi firewire_core forcedeth crc_itu_t pata_amd sata_nv CPU: 1 PID: 2151 Comm: cheese Not tainted 3.18.7-200.fc21.x86_64 #1 Hardware name: empty empty/S2925, BIOS 080014 08/11/2006 0000000000000000 000000000a7e0217 ffff8800ad127bb8 ffffffff8175e686 0000000000000000 0000000000000000 ffff8800ad127bf8 ffffffff810991d1 ffff88022b8c0710 0000000000000000 0000000000000001 ffffffffa051c3e0 Call Trace: [<ffffffff8175e686>] dump_stack+0x46/0x58 [<ffffffff810991d1>] warn_slowpath_common+0x81/0xa0 [<ffffffff810992ea>] warn_slowpath_null+0x1a/0x20 [<ffffffffa04e049e>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa04e19f5>] vb2_internal_streamoff+0x35/0xc0 [videobuf2_core] [<ffffffffa04e1aad>] vb2_streamoff+0x2d/0x50 [videobuf2_core] [<ffffffffa04e1b18>] vb2_ioctl_streamoff+0x48/0x50 [videobuf2_core] [<ffffffffa0501bba>] v4l_streamoff+0x1a/0x20 [videodev] [<ffffffffa050463c>] __video_do_ioctl+0x29c/0x320 [videodev] [<ffffffffa0506706>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffffa05043a0>] ? v4l_dqevent+0x20/0x20 [videodev] [<ffffffff81113f22>] ? do_futex+0x132/0xb10 [<ffffffffa0506985>] video_ioctl2+0x15/0x20 [videodev] [<ffffffffa05007a4>] v4l2_ioctl+0x174/0x190 [videodev] [<ffffffff8122a1c0>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff81114985>] ? SyS_futex+0x85/0x1a0 [<ffffffff8122a421>] SyS_ioctl+0x81/0xa0 [<ffffffff81765429>] system_call_fastpath+0x12/0x17
Description of problem: I just ended a Skype video call Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/boot/vmlinuz-3.18.6-200.fc21.x86_64 root=UUID=bb6b0ea9-b6a7-448b-b3fa-247f8f2008c1 ro rhgb quiet LANG=es_MX.UTF-8 kernel: 3.18.6-200.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 2473 at drivers/media/v4l2-core/videobuf2-core.c:2135 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: uas usb_storage ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack bnep ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw fuse uvcvideo videobuf2_vmalloc videobuf2_core videobuf2_memops arc4 ath9k ath9k_common intel_rapl v4l2_common ath9k_hw intel_soc_dts_thermal joydev coretemp videodev kvm_intel media ath iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi hid_multitouch snd_hda_codec_realtek snd_hda_codec_generic mac80211 btusb snd_hda_intel snd_hda_controller bluetooth acer_wmi cfg80211 snd_hda_codec kvm sparse_keymap snd_hwdep snd_seq crct10dif_pclmul crc32_pclmul i2c_hid snd_seq_device rfkill crc32c_intel i2c_i801 snd_pcm ghash_clmulni_intel serio_raw lpc_ich dw_dmac dw_dmac_core mei_txe wmi mfd_core i2c_designware_platform sdhci_pci int3400_thermal int3403_thermal mei acpi_thermal_rel snd_timer i2c_designware_core snd shpchp soundcore iosf_mbi nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc i915 r8169 i2c_algo_bit drm_kms_helper drm mii sdhci_acpi sdhci mmc_core video CPU: 0 PID: 2473 Comm: skype Not tainted 3.18.6-200.fc21.x86_64 #1 Hardware name: Acer Aspire E3-112M/R2, BIOS V1.03 07/22/2014 0000000000000000 00000000745d6398 ffff88004e5bb9b8 ffffffff8175e486 0000000000000000 0000000000000000 ffff88004e5bb9f8 ffffffff810991b1 ffff88004e5bb9f8 0000000000000000 0000000000000000 ffff880072264318 Call Trace: [<ffffffff8175e486>] dump_stack+0x46/0x58 [<ffffffff810991b1>] warn_slowpath_common+0x81/0xa0 [<ffffffff810992ca>] warn_slowpath_null+0x1a/0x20 [<ffffffffa068c49e>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa068d9f5>] vb2_internal_streamoff+0x35/0xc0 [videobuf2_core] [<ffffffffa068daad>] vb2_streamoff+0x2d/0x50 [videobuf2_core] [<ffffffffa07668d5>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa076b75e>] uvc_video_enable+0x4e/0x1b0 [uvcvideo] [<ffffffffa0768083>] uvc_v4l2_do_ioctl+0x773/0x1510 [uvcvideo] [<ffffffffa06a2706>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffffa0767910>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffffa0766c8f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa069c66b>] ? v4l2_ioctl+0x3b/0x190 [videodev] [<ffffffffa069c784>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffffa06ace6b>] do_video_ioctl+0x27b/0x1530 [videodev] [<ffffffff811a01f7>] ? __free_pages+0x37/0x50 [<ffffffff8131f297>] ? inode_has_perm.isra.30+0x27/0x40 [<ffffffff8131f407>] ? file_has_perm+0xa7/0xb0 [<ffffffffa06ae192>] v4l2_compat_ioctl32+0x72/0xad [videodev] [<ffffffff8126aca0>] compat_SyS_ioctl+0xf0/0x1270 [<ffffffff813b6fe6>] ? __percpu_counter_add+0x56/0x80 [<ffffffff8101d639>] ? read_tsc+0x9/0x10 [<ffffffff81105ab5>] ? ktime_get_ts64+0x45/0x100 [<ffffffff81101ef1>] ? posix_ktime_get_ts+0x11/0x20 [<ffffffff81103441>] ? SyS_clock_gettime+0x81/0xc0 [<ffffffff8176788a>] sysenter_dispatch+0x7/0x21
Description of problem: I installed the Hipchat client Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.18.9-200.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.lvm.lv=fedora/root rhgb quiet LANG=en_US.UTF-8 kernel: 3.18.9-200.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 2040 at drivers/media/v4l2-core/videobuf2-core.c:2135 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: ccm fuse ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack mmc_block ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw arc4 ath9k ath9k_common ath9k_hw snd_hda_codec_hdmi ath mac80211 snd_hda_codec_realtek snd_hda_codec_generic intel_rapl snd_hda_intel x86_pkg_temp_thermal snd_hda_controller coretemp snd_hda_codec kvm_intel snd_hwdep kvm snd_seq ath3k btusb cfg80211 snd_seq_device iTCO_wdt uvcvideo iTCO_vendor_support acer_wmi snd_pcm bluetooth sparse_keymap videobuf2_vmalloc videobuf2_core videobuf2_memops v4l2_common crct10dif_pclmul crc32_pclmul crc32c_intel videodev ghash_clmulni_intel snd_timer sdhci_pci sdhci media joydev snd mmc_core serio_raw i2c_i801 mei_me rfkill mei soundcore lpc_ich mfd_core shpchp wmi nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 i2c_algo_bit tg3 drm_kms_helper drm ptp pps_core video CPU: 0 PID: 2040 Comm: hipchat.bin Not tainted 3.18.9-200.fc21.x86_64 #1 Hardware name: Acer V5-131/Mimic , BIOS V2.17 03/22/2013 0000000000000000 0000000083885f3e ffff88008d6afb68 ffffffff8175b71c 0000000000000000 0000000000000000 ffff88008d6afba8 ffffffff81098eb1 ffff88003699a830 0000000000000000 0000000000000000 ffff880148fbab18 Call Trace: [<ffffffff8175b71c>] dump_stack+0x46/0x58 [<ffffffff81098eb1>] warn_slowpath_common+0x81/0xa0 [<ffffffff81098fca>] warn_slowpath_null+0x1a/0x20 [<ffffffffa036e49e>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa036fa05>] vb2_internal_streamoff+0x35/0xc0 [videobuf2_core] [<ffffffffa036fabd>] vb2_streamoff+0x2d/0x50 [videobuf2_core] [<ffffffffa03fa8d5>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa03ff71e>] uvc_video_enable+0x4e/0x1b0 [uvcvideo] [<ffffffffa03fc043>] uvc_v4l2_do_ioctl+0x773/0x1510 [uvcvideo] [<ffffffffa033a706>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffffa03fb8d0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffff81110de0>] ? futex_wake+0x80/0x160 [<ffffffffa03fac8f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa0334784>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffff812282b0>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff8109803c>] ? do_fork+0x14c/0x380 [<ffffffff81228511>] SyS_ioctl+0x81/0xa0 [<ffffffff81762469>] ? stub_clone+0x69/0x90 [<ffffffff81762129>] system_call_fastpath+0x12/0x17
Description of problem: while I was creating a scratch project on my mozilla web browser. I tried to enable the camera on flash mode and actually it crashed Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.18.8-201.fc21.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap rd.lvm.lv=fedora/root rhgb quiet LANG=en_US.UTF-8 kernel: 3.18.8-201.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 0 PID: 2393 at drivers/media/v4l2-core/videobuf2-core.c:2135 __vb2_queue_cancel+0x11e/0x180 [videobuf2_core]() Modules linked in: bnep bluetooth fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw intel_rapl x86_pkg_temp_thermal arc4 ath9k coretemp ath9k_common uvcvideo kvm_intel ath9k_hw kvm videobuf2_vmalloc videobuf2_core videobuf2_memops v4l2_common ath videodev snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel mac80211 media crct10dif_pclmul snd_hda_controller crc32_pclmul acer_wmi snd_hda_codec crc32c_intel sparse_keymap ghash_clmulni_intel cfg80211 snd_hwdep iTCO_wdt snd_seq rfkill snd_seq_device iTCO_vendor_support snd_pcm wmi lpc_ich serio_raw mei_me sdhci_pci sdhci mmc_core mei snd_timer shpchp i2c_i801 mfd_core snd soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 i2c_algo_bit drm_kms_helper drm tg3 ptp pps_core video CPU: 0 PID: 2393 Comm: plugin-containe Not tainted 3.18.8-201.fc21.x86_64 #1 Hardware name: Acer V5-131/Mimic , BIOS V2.18 09/02/2013 0000000000000000 000000007aee434e ffff88004552bb68 ffffffff8175b3fc 0000000000000000 0000000000000000 ffff88004552bba8 ffffffff81098e91 ffff88004552bba8 0000000000000000 0000000000000000 ffff88006aad2318 Call Trace: [<ffffffff8175b3fc>] dump_stack+0x46/0x58 [<ffffffff81098e91>] warn_slowpath_common+0x81/0xa0 [<ffffffff81098faa>] warn_slowpath_null+0x1a/0x20 [<ffffffffa055149e>] __vb2_queue_cancel+0x11e/0x180 [videobuf2_core] [<ffffffffa0552a05>] vb2_internal_streamoff+0x35/0xc0 [videobuf2_core] [<ffffffffa0552abd>] vb2_streamoff+0x2d/0x50 [videobuf2_core] [<ffffffffa063a8d5>] uvc_queue_enable+0x65/0xa0 [uvcvideo] [<ffffffffa063f71e>] uvc_video_enable+0x4e/0x1b0 [uvcvideo] [<ffffffffa063c043>] uvc_v4l2_do_ioctl+0x773/0x1510 [uvcvideo] [<ffffffff81228df0>] ? poll_select_copy_remaining+0x150/0x150 [<ffffffffa052f706>] video_usercopy+0x366/0x5d0 [videodev] [<ffffffffa063b8d0>] ? uvc_v4l2_open+0x150/0x150 [uvcvideo] [<ffffffffa063ac8f>] uvc_v4l2_ioctl+0x2f/0x70 [uvcvideo] [<ffffffffa0529784>] v4l2_ioctl+0x154/0x190 [videodev] [<ffffffff81228150>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff812283b1>] SyS_ioctl+0x81/0xa0 [<ffffffff8122a61d>] ? SyS_poll+0x6d/0x120 [<ffffffff81761e29>] system_call_fastpath+0x12/0x17
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 21 kernel bugs. Fedora 21 has now been rebased to 3.19.5-200.fc21. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 22, and are still experiencing this issue, please change the version to Fedora 22. If you experience different issues, please open a new bug report for those.