[Bug 1878899] Re: Call trace from __video_do_ioctl
** Also affects: v4l2loopback (Ubuntu) Importance: Undecided Status: New ** Changed in: v4l2loopback (Ubuntu) Status: New => Confirmed ** No longer affects: linux (Ubuntu) ** Summary changed: - Call trace from __video_do_ioctl + Call trace from __video_do_ioctl on focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878899 Title: Call trace from __video_do_ioctl on focal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/v4l2loopback/+bug/1878899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1878899] Re: Call trace from __video_do_ioctl
Ok, it's a bug in v4l2loopback: https://github.com/umlaeute/v4l2loopback/commit/10b1c7e6bda4255fdfaa187ce2b3be13433416d2 ** Changed in: linux (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878899 Title: Call trace from __video_do_ioctl To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1878899] Re: Call trace from __video_do_ioctl
Argh, why did Firefox keep the contents of comment #6 in the edit box? Ignore comment #7, the relevant part is And I have since retired the AMD A10 system, same behaviour on [ 6442.968740] CPU: 0 PID: 45180 Comm: v4l_id Tainted: G W OE 5.4.0-33-generic #37-Ubuntu [ 6442.968741] Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 0604 07/02/2019 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878899 Title: Call trace from __video_do_ioctl To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1878899] Re: Call trace from __video_do_ioctl
Same, happens on loading the v4l2loopback module: [ 1039.168432] v4l2loopback driver version 0.12.3 loaded [ 1039.172977] [ cut here ] [ 1039.172994] WARNING: CPU: 3 PID: 8520 at drivers/media/v4l2-core/v4l2-ioctl.c:1064 v4l_querycap+0x8b/0xa0 [videodev] [ 1039.172995] Modules linked in: v4l2loopback(OE) snd_seq_dummy iptable_mangle xt_CHECKSUM iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c xt_tcpudp bridge stp llc iptable_filter bpfilter binfmt_misc nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg kvm_amd snd_hda_codec ccp snd_hda_core snd_usb_audio kvm snd_usbmidi_lib snd_hwdep serio_raw snd_pcm fam15h_power k10temp snd_seq_midi snd_seq_midi_event snd_rawmidi gspca_zc3xx gspca_vc032x uvcvideo gspca_main snd_seq input_leds videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common joydev videodev snd_seq_device mc cdc_acm snd_timer snd soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 dm_crypt amdgpu amd_iommu_v2 gpu_sched uas usb_storage hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel radeon i2c_algo_bit ttm aesni_intel crypto_simd drm_kms_helper [ 1039.173027] cryptd syscopyarea glue_helper sysfillrect sysimgblt fb_sys_fops i2c_piix4 ahci drm libahci r8169 realtek video [last unloaded: v4l2loopback] [ 1039.173035] CPU: 3 PID: 8520 Comm: v4l_id Tainted: GW OE 5.4.0-29-generic #33-Ubuntu [ 1039.173036] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./G1.Sniper A88X-CF, BIOS F7 01/08/2014 [ 1039.173042] RIP: 0010:v4l_querycap+0x8b/0xa0 [videodev] [ 1039.173044] Code: 54 81 ca 00 00 00 80 48 b9 00 00 20 00 00 00 20 00 48 0b 4b 54 21 d6 39 f2 75 13 48 89 4b 54 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b eb d0 0f 0b 48 89 4b 54 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f [ 1039.173045] RSP: 0018:bc64429c3c70 EFLAGS: 00010297 [ 1039.173047] RAX: RBX: bc64429c3d88 RCX: 0001 [ 1039.173048] RDX: 85008003 RSI: RDI: [ 1039.173048] RBP: bc64429c3c98 R08: R09: 000a [ 1039.173049] R10: R11: R12: 92f309255000 [ 1039.173050] R13: 92f317d7e200 R14: 92f234abe6a0 R15: c0fd8380 [ 1039.173052] FS: 7fc41b97e580() GS:92f31fb8() knlGS: [ 1039.173053] CS: 0010 DS: ES: CR0: 80050033 [ 1039.173053] CR2: 7fc41b830cc0 CR3: 0007a7e0 CR4: 000406e0 [ 1039.173054] Call Trace: [ 1039.173064] __video_do_ioctl+0x1a7/0x410 [videodev] [ 1039.173070] video_usercopy+0x2b5/0x670 [videodev] [ 1039.173076] ? v4l_s_fmt+0x670/0x670 [videodev] [ 1039.173082] video_ioctl2+0x15/0x20 [videodev] [ 1039.173087] v4l2_ioctl+0x4c/0x60 [videodev] [ 1039.173091] do_vfs_ioctl+0x407/0x670 [ 1039.173095] ? __secure_computing+0x42/0xe0 [ 1039.173096] ksys_ioctl+0x67/0x90 [ 1039.173098] __x64_sys_ioctl+0x1a/0x20 [ 1039.173100] do_syscall_64+0x57/0x190 [ 1039.173103] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1039.173105] RIP: 0033:0x7fc41b83737b [ 1039.173107] Code: 0f 1e fa 48 8b 05 15 3b 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 3a 0d 00 f7 d8 64 89 01 48 [ 1039.173108] RSP: 002b:7ffd63439488 EFLAGS: 0246 ORIG_RAX: 0010 [ 1039.173109] RAX: ffda RBX: 7ffd63439608 RCX: 7fc41b83737b [ 1039.173110] RDX: 7ffd63439490 RSI: 80685600 RDI: 0003 [ 1039.173110] RBP: 0003 R08: R09: [ 1039.173111] R10: R11: 0246 R12: 55a68fffa440 [ 1039.173112] R13: 7ffd63439600 R14: R15: [ 1039.173114] ---[ end trace d94124d807433b7d ]--- [ 1039.173126] [ cut here ] [ 1039.173132] WARNING: CPU: 3 PID: 8520 at drivers/media/v4l2-core/v4l2-ioctl.c:1069 v4l_querycap+0x8f/0xa0 [videodev] [ 1039.173132] Modules linked in: v4l2loopback(OE) snd_seq_dummy iptable_mangle xt_CHECKSUM iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c xt_tcpudp bridge stp llc iptable_filter bpfilter binfmt_misc nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg kvm_amd snd_hda_codec ccp snd_hda_core snd_usb_audio kvm snd_usbmidi_lib snd_hwdep serio_raw snd_pcm fam15h_power k10temp snd_seq_midi snd_seq_midi_event snd_rawmidi gspca_zc3xx gspca_vc032x uvcvideo gspca_main snd_seq input_leds videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common joydev videodev snd_seq_device mc cdc_acm snd_timer snd soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables
[Bug 1878899] Re: Call trace from __video_do_ioctl
Same, happens on loading the v4l2loopback module: [ 1039.168432] v4l2loopback driver version 0.12.3 loaded [ 1039.172977] [ cut here ] [ 1039.172994] WARNING: CPU: 3 PID: 8520 at drivers/media/v4l2-core/v4l2-ioctl.c:1064 v4l_querycap+0x8b/0xa0 [videodev] [ 1039.172995] Modules linked in: v4l2loopback(OE) snd_seq_dummy iptable_mangle xt_CHECKSUM iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c xt_tcpudp bridge stp llc iptable_filter bpfilter binfmt_misc nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg kvm_amd snd_hda_codec ccp snd_hda_core snd_usb_audio kvm snd_usbmidi_lib snd_hwdep serio_raw snd_pcm fam15h_power k10temp snd_seq_midi snd_seq_midi_event snd_rawmidi gspca_zc3xx gspca_vc032x uvcvideo gspca_main snd_seq input_leds videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common joydev videodev snd_seq_device mc cdc_acm snd_timer snd soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 dm_crypt amdgpu amd_iommu_v2 gpu_sched uas usb_storage hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel radeon i2c_algo_bit ttm aesni_intel crypto_simd drm_kms_helper [ 1039.173027] cryptd syscopyarea glue_helper sysfillrect sysimgblt fb_sys_fops i2c_piix4 ahci drm libahci r8169 realtek video [last unloaded: v4l2loopback] [ 1039.173035] CPU: 3 PID: 8520 Comm: v4l_id Tainted: GW OE 5.4.0-29-generic #33-Ubuntu [ 1039.173036] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./G1.Sniper A88X-CF, BIOS F7 01/08/2014 [ 1039.173042] RIP: 0010:v4l_querycap+0x8b/0xa0 [videodev] [ 1039.173044] Code: 54 81 ca 00 00 00 80 48 b9 00 00 20 00 00 00 20 00 48 0b 4b 54 21 d6 39 f2 75 13 48 89 4b 54 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b eb d0 0f 0b 48 89 4b 54 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f [ 1039.173045] RSP: 0018:bc64429c3c70 EFLAGS: 00010297 [ 1039.173047] RAX: RBX: bc64429c3d88 RCX: 0001 [ 1039.173048] RDX: 85008003 RSI: RDI: [ 1039.173048] RBP: bc64429c3c98 R08: R09: 000a [ 1039.173049] R10: R11: R12: 92f309255000 [ 1039.173050] R13: 92f317d7e200 R14: 92f234abe6a0 R15: c0fd8380 [ 1039.173052] FS: 7fc41b97e580() GS:92f31fb8() knlGS: [ 1039.173053] CS: 0010 DS: ES: CR0: 80050033 [ 1039.173053] CR2: 7fc41b830cc0 CR3: 0007a7e0 CR4: 000406e0 [ 1039.173054] Call Trace: [ 1039.173064] __video_do_ioctl+0x1a7/0x410 [videodev] [ 1039.173070] video_usercopy+0x2b5/0x670 [videodev] [ 1039.173076] ? v4l_s_fmt+0x670/0x670 [videodev] [ 1039.173082] video_ioctl2+0x15/0x20 [videodev] [ 1039.173087] v4l2_ioctl+0x4c/0x60 [videodev] [ 1039.173091] do_vfs_ioctl+0x407/0x670 [ 1039.173095] ? __secure_computing+0x42/0xe0 [ 1039.173096] ksys_ioctl+0x67/0x90 [ 1039.173098] __x64_sys_ioctl+0x1a/0x20 [ 1039.173100] do_syscall_64+0x57/0x190 [ 1039.173103] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1039.173105] RIP: 0033:0x7fc41b83737b [ 1039.173107] Code: 0f 1e fa 48 8b 05 15 3b 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 3a 0d 00 f7 d8 64 89 01 48 [ 1039.173108] RSP: 002b:7ffd63439488 EFLAGS: 0246 ORIG_RAX: 0010 [ 1039.173109] RAX: ffda RBX: 7ffd63439608 RCX: 7fc41b83737b [ 1039.173110] RDX: 7ffd63439490 RSI: 80685600 RDI: 0003 [ 1039.173110] RBP: 0003 R08: R09: [ 1039.173111] R10: R11: 0246 R12: 55a68fffa440 [ 1039.173112] R13: 7ffd63439600 R14: R15: [ 1039.173114] ---[ end trace d94124d807433b7d ]--- [ 1039.173126] [ cut here ] [ 1039.173132] WARNING: CPU: 3 PID: 8520 at drivers/media/v4l2-core/v4l2-ioctl.c:1069 v4l_querycap+0x8f/0xa0 [videodev] [ 1039.173132] Modules linked in: v4l2loopback(OE) snd_seq_dummy iptable_mangle xt_CHECKSUM iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c xt_tcpudp bridge stp llc iptable_filter bpfilter binfmt_misc nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg kvm_amd snd_hda_codec ccp snd_hda_core snd_usb_audio kvm snd_usbmidi_lib snd_hwdep serio_raw snd_pcm fam15h_power k10temp snd_seq_midi snd_seq_midi_event snd_rawmidi gspca_zc3xx gspca_vc032x uvcvideo gspca_main snd_seq input_leds videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common joydev videodev snd_seq_device mc cdc_acm snd_timer snd soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables
[Bug 1878899] Re: Call trace from __video_do_ioctl
Can you please try linux-generic kernel instead of linux-lowlatency? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878899 Title: Call trace from __video_do_ioctl To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1878899] Re: Call trace from __video_do_ioctl
Bus 008 Device 015: ID 046d:08af Logitech, Inc. QuickCam Easy/Cool Bus 008 Device 013: ID 046d:0892 Logitech, Inc. OrbiCam Both used by OBS Studio, which then sent its output to a v4l2loobback device, module parameters: /sbin/modprobe v4l2loopback devices=1 video_nr=10 card_label="OBS Cam" exclusive_caps=1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878899 Title: Call trace from __video_do_ioctl To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1878899] Re: Call trace from __video_do_ioctl
Which camera was in use? ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878899 Title: Call trace from __video_do_ioctl To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
