Public bug reported:
the USB webcam works well with zoom and cheese application, but since a
few weeks, it is usually crashing with brave web browser and the firefox
browser. My laptop with a build-in webcam, has the same issues.
Log from kern.log:
Jan 29 17:58:33 G-Hibrid kernel: [53802.978738] ------------[ cut here
]------------
Jan 29 17:58:33 G-Hibrid kernel: [53802.978742] kernel BUG at mm/slub.c:4045!
Jan 29 17:58:33 G-Hibrid kernel: [53802.978747] invalid opcode: 0000 [#8] SMP
PTI
Jan 29 17:58:33 G-Hibrid kernel: [53802.978750] CPU: 6 PID: 1190186 Comm: brave
Tainted: P D OE 5.8.0-41-generic #46~20.04.1-Ubuntu
Jan 29 17:58:33 G-Hibrid kernel: [53802.978750] Hardware name: System
manufacturer System Product Name/P9X79 DELUXE, BIOS 4701 05/07/2014
Jan 29 17:58:33 G-Hibrid kernel: [53802.978756] RIP: 0010:kfree+0x1de/0x250
Jan 29 17:58:33 G-Hibrid kernel: [53802.978757] Code: ff ff 49 8b 04 24 45 31
ed a9 00 00 01 00 74 06 45 0f b6 6c 24 51 49 8b 04 24 a9 00 00 01 00 75 0b 49
8b 44 24 08 a8 01 75 02 <0f> 0b 49 8b 04 24 44 89 e9 ba ff ff ff ff be 06 00 00
00 d3 e2 48
Jan 29 17:58:33 G-Hibrid kernel: [53802.978759] RSP: 0018:ffffab8c46d07df0
EFLAGS: 00010246
Jan 29 17:58:33 G-Hibrid kernel: [53802.978760] RAX: fffff668de01ffc8 RBX:
ffff931800000000 RCX: 0000000001084a57
Jan 29 17:58:33 G-Hibrid kernel: [53802.978761] RDX: 0000000000000000 RSI:
581b5eb250703ca8 RDI: ffff931800000000
Jan 29 17:58:33 G-Hibrid kernel: [53802.978761] RBP: ffffab8c46d07e10 R08:
0000000000000000 R09: 0000000000000004
Jan 29 17:58:33 G-Hibrid kernel: [53802.978762] R10: ffff931825052e6c R11:
ffff931925052e4b R12: fffff668de000000
Jan 29 17:58:33 G-Hibrid kernel: [53802.978763] R13: 0000000000000000 R14:
ffff931825052e40 R15: 0000000000000040
Jan 29 17:58:33 G-Hibrid kernel: [53802.978764] FS: 00007ff74b811e80(0000)
GS:ffff93188fb80000(0000) knlGS:0000000000000000
Jan 29 17:58:33 G-Hibrid kernel: [53802.978765] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jan 29 17:58:33 G-Hibrid kernel: [53802.978766] CR2: 00001b6fd89c7008 CR3:
00000004e6cc4006 CR4: 00000000001606e0
Jan 29 17:58:33 G-Hibrid kernel: [53802.978767] Call Trace:
Jan 29 17:58:33 G-Hibrid kernel: [53802.978776] akvcam_list_clear+0x66/0x90
[akvcam]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978781] akvcam_list_delete+0x32/0x50
[akvcam]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978786]
akvcam_ioctls_enum_fmt+0xba/0xf0 [akvcam]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978791] ?
akvcam_ioctls_s_output+0x60/0x60 [akvcam]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978795] akvcam_ioctl_do+0xb5/0x150
[akvcam]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978799] akvcam_node_ioctl+0x26/0x40
[akvcam]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978806] v4l2_ioctl+0x4c/0x60 [videodev]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978809] ksys_ioctl+0x9d/0xd0
Jan 29 17:58:33 G-Hibrid kernel: [53802.978810] __x64_sys_ioctl+0x1a/0x20
Jan 29 17:58:33 G-Hibrid kernel: [53802.978813] do_syscall_64+0x49/0xc0
Jan 29 17:58:33 G-Hibrid kernel: [53802.978814]
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Jan 29 17:58:33 G-Hibrid kernel: [53802.978816] RIP: 0033:0x7ff74cc6f50b
Jan 29 17:58:33 G-Hibrid kernel: [53802.978817] Code: 0f 1e fa 48 8b 05 85 39
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 55 39 0d 00 f7 d8
64 89 01 48
Jan 29 17:58:33 G-Hibrid kernel: [53802.978818] RSP: 002b:00007ffe0a9fc078
EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Jan 29 17:58:33 G-Hibrid kernel: [53802.978819] RAX: ffffffffffffffda RBX:
0000000000000019 RCX: 00007ff74cc6f50b
Jan 29 17:58:33 G-Hibrid kernel: [53802.978820] RDX: 00007ffe0a9fc280 RSI:
ffffffffc0405602 RDI: 0000000000000019
Jan 29 17:58:33 G-Hibrid kernel: [53802.978821] RBP: 00007ffe0a9fc310 R08:
fffffffffffffff0 R09: 00007ffe0a9fc1f0
Jan 29 17:58:33 G-Hibrid kernel: [53802.978822] R10: 0000000000000000 R11:
0000000000000246 R12: 00007ffe0a9fc140
Jan 29 17:58:33 G-Hibrid kernel: [53802.978822] R13: 00001b6fd89ac8a0 R14:
00001b6fd89ac870 R15: 00001b6fd88d4ba0
Jan 29 17:58:33 G-Hibrid kernel: [53802.978827] ?
ir_raw_event_thread+0x172/0x1b0 [rc_core]
Jan 29 17:58:33 G-Hibrid kernel: [53802.978828] Modules linked in: rfcomm
vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) xt_CHECKSUM
xt_MASQUERADE ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat
nf_tables nfnetlink bridge stp llc cmac algif_hash algif_skcipher af_alg bnep
binfmt_misc dm_crypt nls_iso8859_1 intel_rapl_msr intel_rapl_common
snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal
intel_powerclamp ledtrig_audio coretemp snd_hda_codec_hdmi snd_hda_intel
snd_intel_dspcfg snd_usb_audio kvm_intel snd_usbmidi_lib snd_hda_codec
snd_hda_core kvm snd_hwdep snd_pcm eeepc_wmi ath9k asus_wmi rapl sparse_keymap
ath9k_common snd_seq_midi intel_cstate video wmi_bmof btusb efi_pstore
snd_seq_midi_event btrtl ath9k_hw snd_rawmidi btbcm mxm_wmi btintel uvcvideo
ath snd_seq bluetooth mac80211 videobuf2_vmalloc joydev snd_seq_device
videobuf2_memops input_leds snd_timer videobuf2_v4l2 ecdh_generic ecc
videobuf2_common apple_mfi_fastcharge cfg80211 snd mei_me libarc4 mei soundcore
mac_hid
Jan 29 17:58:33 G-Hibrid kernel: [53802.978856] nvidia_uvm(OE) nf_log_ipv6
ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common ipt_REJECT
nf_reject_ipv4 xt_LOG sch_fq_codel xt_limit xt_addrtype xt_tcpudp parport_pc
ppdev xt_conntrack nf_conntrack lp nf_defrag_ipv6 parport nf_defrag_ipv4
ip6table_filter ip6_tables akvcam(OE) iptable_filter bpfilter videodev mc
ip_tables x_tables autofs4 raid10 raid456 async_raid6_recov async_memcpy
async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear
uas usb_storage nvidia_drm(POE) nvidia_modeset(POE) hid_generic usbhid hid
nvidia(POE) drm_kms_helper crct10dif_pclmul syscopyarea sysfillrect
crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd sysimgblt cryptd
fb_sys_fops glue_helper cec rc_core i2c_i801 drm i2c_smbus ahci r8169 xhci_pci
e1000e libahci lpc_ich realtek xhci_pci_renesas wmi
Jan 29 17:58:33 G-Hibrid kernel: [53802.978882] ---[ end trace 7c63d02f0d5e9dd1
]---
Jan 29 17:58:33 G-Hibrid kernel: [53802.995408] RIP: 0010:kfree+0x1de/0x250
Jan 29 17:58:33 G-Hibrid kernel: [53802.995413] Code: ff ff 49 8b 04 24 45 31
ed a9 00 00 01 00 74 06 45 0f b6 6c 24 51 49 8b 04 24 a9 00 00 01 00 75 0b 49
8b 44 24 08 a8 01 75 02 <0f> 0b 49 8b 04 24 44 89 e9 ba ff ff ff ff be 06 00 00
00 d3 e2 48
Jan 29 17:58:33 G-Hibrid kernel: [53802.995416] RSP: 0018:ffffab8c4626fdf0
EFLAGS: 00010246
Jan 29 17:58:33 G-Hibrid kernel: [53802.995420] RAX: fffff668de01ffc8 RBX:
ffff931800000000 RCX: 000000000087b038
Jan 29 17:58:33 G-Hibrid kernel: [53802.995422] RDX: 0000000000000000 RSI:
58f089e200a7d128 RDI: ffff931800000000
Jan 29 17:58:33 G-Hibrid kernel: [53802.995423] RBP: ffffab8c4626fe10 R08:
0000000000000000 R09: 0000000000000004
Jan 29 17:58:33 G-Hibrid kernel: [53802.995424] R10: ffff931875d2c1ac R11:
ffff931975d2c18b R12: fffff668de000000
Jan 29 17:58:33 G-Hibrid kernel: [53802.995425] R13: 0000000000000000 R14:
ffff931875d2c180 R15: 0000000000000040
Jan 29 17:58:33 G-Hibrid kernel: [53802.995427] FS: 00007ff74b811e80(0000)
GS:ffff93188fb80000(0000) knlGS:0000000000000000
Jan 29 17:58:33 G-Hibrid kernel: [53802.995428] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jan 29 17:58:33 G-Hibrid kernel: [53802.995429] CR2: 00001b6fd89c7008 CR3:
00000004e6cc4006 CR4: 00000000001606e0
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1913790
Title:
Webcam doesn't work from Internet browser (brave & firefox)
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