I shared the stack trace. Was there a reply somewhere I didn't get? Is it on lkms? Link?
With UVC trace on: [ 638.729455] uvcvideo: uvc_v4l2_open [ 638.824646] uvcvideo: Resuming interface 0 [ 638.824648] uvcvideo: Resuming interface 1 [ 638.825644] uvcvideo: uvc_v4l2_release [ 638.898089] uvcvideo: uvc_v4l2_open [ 638.925805] uvcvideo: Trying format 0x56595559 (YUYV): 1280x720. [ 638.925807] uvcvideo: Using default frame interval 100000.0 us (10.0 fps). [ 638.946272] uvcvideo: Trying format 0x56595559 (YUYV): 1280x720. [ 638.946273] uvcvideo: Using default frame interval 100000.0 us (10.0 fps). [ 638.946549] uvcvideo: Setting frame interval to 1/10 (1000000). [ 638.946825] uvcvideo: Control 0x00980927 not found. [ 638.947000] uvcvideo: Control 0x00980927 not found. [ 638.949080] uvcvideo: Device requested 2688 B/frame bandwidth. [ 638.949082] uvcvideo: Selecting alternate setting 10 (2688 B/frame bandwidth). [ 639.102943] uvcvideo: Allocated 5 URB buffers of 32x2688 bytes each. [ 639.205221] uvcvideo: Control 3/4 value change len 7. [ 639.357674] uvcvideo: uvc_v4l2_release [ 639.358800] uvcvideo: uvc_v4l2_open [ 639.379511] uvcvideo: Trying format 0x56595559 (YUYV): 1280x720. [ 639.379514] uvcvideo: Using default frame interval 100000.0 us (10.0 fps). [ 639.466691] uvcvideo: Trying format 0x56595559 (YUYV): 1280x720. [ 639.466694] uvcvideo: Using default frame interval 100000.0 us (10.0 fps). [ 639.466986] uvcvideo: Setting frame interval to 1/10 (1000000). [ 639.467269] uvcvideo: Control 0x00980927 not found. [ 639.467403] uvcvideo: Control 0x00980927 not found. [ 639.469801] uvcvideo: Device requested 2688 B/frame bandwidth. [ 639.469804] uvcvideo: Selecting alternate setting 10 (2688 B/frame bandwidth). [ 639.476133] usb 3-4: USB disconnect, device number 3 [ 644.565643] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 644.565648] #PF: supervisor read access in kernel mode [ 644.565651] #PF: error_code(0x0000) - not-present page [ 644.565653] PGD 0 P4D 0 [ 644.565658] Oops: 0000 [#1] SMP PTI [ 644.565662] CPU: 34 PID: 31130 Comm: v4l2src1:src Tainted: P S OE 5.9.8-100.fc32.x86_64 #1 [ 644.565665] Hardware name: Hewlett-Packard HP Z640 Workstation/212A, BIOS M60 v02.54 06/12/2020 [ 644.565673] RIP: 0010:usb_ifnum_to_if+0x3a/0x50 [ 644.565677] Code: 34 41 0f b6 50 04 84 d2 74 2f 83 ea 01 49 8d 80 98 00 00 00 49 8d 8c d0 a0 00 00 00 eb 09 48 83 c0 08 48 39 c8 74 12 4c 8b 00 <49> 8b 10 0f b6 52 02 39 f2 75 e9 4c 89 c0 c3 45 31 c0 4c 89 c0 c3 [ 644.565679] RSP: 0018:ffffb41c097ffbc8 EFLAGS: 00010206 [ 644.565682] RAX: ffff89b9783d7098 RBX: 0000000000000000 RCX: ffff89b9783d70b8 [ 644.565684] RDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff89b97b55d800 [ 644.565686] RBP: ffff89b9704db398 R08: 0000000000000000 R09: ffffffff8fbce608 [ 644.565688] R10: 0000000000023411 R11: 0000000000000000 R12: ffff89b9704db398 [ 644.565690] R13: ffff89b97b55d800 R14: ffff89b97b55d800 R15: ffff89b9882a0000 [ 644.565694] FS: 00007f8d0bfff700(0000) GS:ffff89b98fc80000(0000) knlGS:0000000000000000 [ 644.565696] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 644.565698] CR2: 0000000000000000 CR3: 0000001df4d58004 CR4: 00000000001706e0 [ 644.565700] Call Trace: [ 644.565710] usb_hcd_alloc_bandwidth+0x23d/0x360 [ 644.565716] usb_set_interface+0x120/0x360 [ 644.565729] uvc_video_start_transfer+0x19c/0x4f0 [uvcvideo] [ 644.565737] uvc_video_start_streaming+0x7b/0xd0 [uvcvideo] [ 644.565743] uvc_start_streaming+0x2d/0xf0 [uvcvideo] [ 644.565752] vb2_start_streaming+0x63/0x100 [videobuf2_common] [ 644.565758] vb2_core_streamon+0x54/0xb0 [videobuf2_common] [ 644.565775] uvc_queue_streamon+0x2a/0x40 [uvcvideo] [ 644.565782] uvc_ioctl_streamon+0x3a/0x60 [uvcvideo] [ 644.565799] __video_do_ioctl+0x377/0x3b0 [videodev] [ 644.565808] ? mem_cgroup_charge_statistics.constprop.0+0x21/0x50 [ 644.565812] ? __mod_memcg_lruvec_state+0x21/0xe0 [ 644.565822] video_usercopy+0x177/0x570 [videodev] [ 644.565832] ? v4l_print_control+0x20/0x20 [videodev] [ 644.565838] ? selinux_file_ioctl+0x122/0x1c0 [ 644.565847] v4l2_ioctl+0x48/0x50 [videodev] [ 644.565851] __x64_sys_ioctl+0x83/0xb0 [ 644.565855] do_syscall_64+0x33/0x40 [ 644.565862] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 644.565866] RIP: 0033:0x7f8d4cbc93bb [ 644.565870] Code: 0f 1e fa 48 8b 05 dd aa 0c 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 ad aa 0c 00 f7 d8 64 89 01 48 [ 644.565872] RSP: 002b:00007f8d0bffe8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 644.565874] RAX: ffffffffffffffda RBX: 00007f8cfc023030 RCX: 00007f8d4cbc93bb [ 644.565876] RDX: 0000556765a0b810 RSI: 0000000040045612 RDI: 000000000000002e [ 644.565878] RBP: 0000556765a0b800 R08: 0000000000000fa9 R09: 0000000000000000 [ 644.565880] R10: 00000000fffffffe R11: 0000000000000246 R12: 0000000000000000 [ 644.565881] R13: 0000000000000004 R14: 00007f8cfc009f20 R15: 0000000000000001 [ 644.565885] Modules linked in: snd_seq_dummy snd_hrtimer rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nft_objref nf_conntrack_tftp tun bridge stp llc rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace nfs_ssc fscache nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw vboxnetadp(OE) ip6table_security vboxnetflt(OE) iptable_nat nf_nat nf_conntrack vboxdrv(OE) nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter overlay cmac bnep lm75 sunrpc vfat fat squashfs loop btusb btrtl intel_rapl_msr btbcm btintel intel_rapl_common bluetooth ecdh_generic sb_edac ecc x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek iTCO_wdt snd_hda_codec_generic intel_pmc_bxt dm_cache_smq pktcdvd kvm_intel snd_hda_codec_hdmi ledtrig_audio ucsi_ccg typec_ucsi [ 644.565929] iTCO_vendor_support typec nvidia_drm(POE) kvm snd_hda_intel snd_intel_dspcfg uvcvideo snd_hda_codec ocrdma videobuf2_vmalloc irqbypass videobuf2_memops snd_usb_audio nvidia_modeset(POE) videobuf2_v4l2 rapl ib_uverbs snd_hda_core dm_cache snd_usbmidi_lib videobuf2_common snd_hwdep intel_cstate snd_seq dm_persistent_data nvidia_uvm(POE) snd_rawmidi ib_core videodev snd_seq_device dm_bio_prison intel_uncore joydev mc snd_pcm hp_wmi sparse_keymap rfkill pcspkr wmi_bmof snd_timer nvidia(POE) snd i2c_i801 i2c_smbus lpc_ich soundcore i2c_nvidia_gpu tpm_infineon binfmt_misc ip_tables amdgpu iommu_v2 gpu_sched i2c_algo_bit ttm drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel serio_raw drm e1000e nvme be2net nvme_core wmi nbd fuse [ 644.565969] CR2: 0000000000000000 [ 644.565972] ---[ end trace 9de36e7c7c1cd2df ]--- [ 644.565976] RIP: 0010:usb_ifnum_to_if+0x3a/0x50 [ 644.565978] Code: 34 41 0f b6 50 04 84 d2 74 2f 83 ea 01 49 8d 80 98 00 00 00 49 8d 8c d0 a0 00 00 00 eb 09 48 83 c0 08 48 39 c8 74 12 4c 8b 00 <49> 8b 10 0f b6 52 02 39 f2 75 e9 4c 89 c0 c3 45 31 c0 4c 89 c0 c3 [ 644.565980] RSP: 0018:ffffb41c097ffbc8 EFLAGS: 00010206 [ 644.565982] RAX: ffff89b9783d7098 RBX: 0000000000000000 RCX: ffff89b9783d70b8 [ 644.565984] RDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff89b97b55d800 [ 644.565985] RBP: ffff89b9704db398 R08: 0000000000000000 R09: ffffffff8fbce608 [ 644.565987] R10: 0000000000023411 R11: 0000000000000000 R12: ffff89b9704db398 [ 644.565989] R13: ffff89b97b55d800 R14: ffff89b97b55d800 R15: ffff89b9882a0000 [ 644.565992] FS: 00007f8d0bfff700(0000) GS:ffff89b98fc80000(0000) knlGS:0000000000000000 [ 644.565993] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 644.565995] CR2: 0000000000000000 CR3: 0000001df4d58004 CR4: 00000000001706e0 -- 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/1827452 Title: null pointer dereference in uvcvideo Status in linux package in Ubuntu: Expired Bug description: I have a logitech c920 webcam. When using this camera in obs-studio v23.x, all of my USB devices stop working and I see the following in my kernel log: [ 590.282211] usb 3-3: new high-speed USB device number 5 using xhci_hcd [ 592.660916] usb 3-3: New USB device found, idVendor=046d, idProduct=082d, bcdDevice= 0.11 [ 592.660922] usb 3-3: New USB device strings: Mfr=0, Product=2, SerialNumber=1 [ 592.660925] usb 3-3: Product: HD Pro Webcam C920 [ 592.660928] usb 3-3: SerialNumber: 2EAD866F [ 592.664600] uvcvideo: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d) [ 592.666416] uvcvideo 3-3:1.0: Entity type for entity Processing 3 was not initialized! [ 592.666421] uvcvideo 3-3:1.0: Entity type for entity Extension 6 was not initialized! [ 592.666425] uvcvideo 3-3:1.0: Entity type for entity Extension 12 was not initialized! [ 592.666428] uvcvideo 3-3:1.0: Entity type for entity Camera 1 was not initialized! [ 592.666430] uvcvideo 3-3:1.0: Entity type for entity Extension 8 was not initialized! [ 592.666433] uvcvideo 3-3:1.0: Entity type for entity Extension 9 was not initialized! [ 592.666436] uvcvideo 3-3:1.0: Entity type for entity Extension 10 was not initialized! [ 592.666439] uvcvideo 3-3:1.0: Entity type for entity Extension 11 was not initialized! [ 592.666622] input: HD Pro Webcam C920 as /devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.0/input/input23 [ 748.490453] usb 3-3: reset high-speed USB device number 5 using xhci_hcd [ 938.125745] usb 3-3: USB disconnect, device number 5 [ 943.298530] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 943.298533] #PF error: [normal kernel read fault] [ 943.298534] PGD 80000007ca5f3067 P4D 80000007ca5f3067 PUD 0 [ 943.298536] Oops: 0000 [#1] SMP PTI [ 943.298538] CPU: 0 PID: 9442 Comm: libobs: graphic Tainted: P OE 5.0.0-13-generic #14-Ubuntu [ 943.298539] Hardware name: Gigabyte Technology Co., Ltd. Z87-HD3/Z87-HD3, BIOS F7 01/20/2014 [ 943.298543] RIP: 0010:usb_ifnum_to_if+0x24/0x60 [ 943.298544] Code: ff c3 0f 1f 40 00 0f 1f 44 00 00 55 48 8b 87 c0 03 00 00 48 89 e5 48 85 c0 74 43 0f b6 48 04 84 c9 74 39 48 8b 90 98 00 00 00 <48> 8b 3a 0f b6 7f 02 39 fe 74 2b 48 8d 90 a0 00 00 00 8d 41 ff 48 [ 943.298545] RSP: 0018:ffffbdae493dbab0 EFLAGS: 00010202 [ 943.298547] RAX: ffffa106ae527000 RBX: ffffa1070ad0a800 RCX: 0000000000000004 [ 943.298547] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffa1070ad0a800 [ 943.298548] RBP: ffffbdae493dbab0 R08: 0000000000027040 R09: ffffffffb57825b8 [ 943.298549] R10: fffffba45fce4bc0 R11: 0000000000000001 R12: 0000000000000000 [ 943.298550] R13: ffffa10644187b98 R14: 00000000ffffff92 R15: ffffa1075131a000 [ 943.298551] FS: 00007f93c40d7700(0000) GS:ffffa1075ea00000(0000) knlGS:0000000000000000 [ 943.298552] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 943.298553] CR2: 0000000000000000 CR3: 00000006f8a94004 CR4: 00000000001606f0 [ 943.298553] Call Trace: [ 943.298557] usb_hcd_alloc_bandwidth+0x241/0x370 [ 943.298559] usb_set_interface+0xfc/0x380 [ 943.298565] uvc_video_start_transfer+0x155/0x4b0 [uvcvideo] [ 943.298568] uvc_video_start_streaming+0x7f/0xd0 [uvcvideo] [ 943.298570] uvc_start_streaming+0x28/0x70 [uvcvideo] [ 943.298573] vb2_start_streaming+0x6d/0x110 [videobuf2_common] [ 943.298575] vb2_core_streamon+0x59/0xc0 [videobuf2_common] [ 943.298578] vb2_streamon+0x18/0x30 [videobuf2_v4l2] [ 943.298580] uvc_queue_streamon+0x2e/0x50 [uvcvideo] [ 943.298582] uvc_ioctl_streamon+0x3f/0x60 [uvcvideo] [ 943.298588] v4l_streamon+0x20/0x30 [videodev] [ 943.298592] __video_do_ioctl+0x19a/0x3f0 [videodev] [ 943.298596] video_usercopy+0x1a6/0x660 [videodev] [ 943.298599] ? v4l_s_fmt+0x630/0x630 [videodev] [ 943.298603] video_ioctl2+0x15/0x20 [videodev] [ 943.298606] v4l2_ioctl+0x49/0x50 [videodev] [ 943.298608] do_vfs_ioctl+0xa9/0x640 [ 943.298610] ? __switch_to_asm+0x34/0x70 [ 943.298611] ? __switch_to_asm+0x40/0x70 [ 943.298612] ? __switch_to_asm+0x34/0x70 [ 943.298612] ? __switch_to_asm+0x40/0x70 [ 943.298613] ? __switch_to_asm+0x34/0x70 [ 943.298614] ? __switch_to_asm+0x40/0x70 [ 943.298615] ? __switch_to_asm+0x34/0x70 [ 943.298616] ? __switch_to_asm+0x40/0x70 [ 943.298617] ksys_ioctl+0x67/0x90 [ 943.298619] __x64_sys_ioctl+0x1a/0x20 [ 943.298621] do_syscall_64+0x5a/0x110 [ 943.298622] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 943.298623] RIP: 0033:0x7f9430e082e9 [ 943.298624] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 77 cb 0c 00 f7 d8 64 89 01 48 [ 943.298625] RSP: 002b:00007f93c40d6428 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 943.298626] RAX: ffffffffffffffda RBX: 00007f94000da020 RCX: 00007f9430e082e9 [ 943.298627] RDX: 00007f93c40d6444 RSI: 0000000040045612 RDI: 000000000000003b [ 943.298628] RBP: 0000000000000000 R08: 00000000c058560f R09: 000055f3e344a6e0 [ 943.298629] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000003b [ 943.298629] R13: 00007f93c40d68bc R14: 00007f94000da020 R15: 0000000000000000 [ 943.298631] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_usb_audio videodev snd_usbmidi_lib media rfcomm joydev input_leds hid_generic uhid hid algif_hash algif_skcipher af_alg nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype xt_conntrack br_netfilter veth ebtable_filter ebtables ip6t_MASQUERADE ip6table_nat nf_nat_ipv6 ip6table_filter ip6_tables ipt_MASQUERADE xt_CHECKSUM xt_comment xt_tcpudp iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_filter bpfilter bridge stp llc aufs overlay pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) cmac bnep vboxdrv(OE) binfmt_misc nvidia_uvm(OE) nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm irqbypass snd_hda_codec_hdmi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nvidia_drm(POE) nvidia_modeset(POE) arc4 btusb btrtl btbcm btintel nvidia(POE) snd_hda_codec_realtek bluetooth aesni_intel [ 943.298652] snd_hda_codec_generic ledtrig_audio aes_x86_64 snd_hda_intel crypto_simd snd_hda_codec cryptd ecdh_generic glue_helper iwlmvm snd_hda_core mac80211 snd_hwdep snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi iwlwifi drm_kms_helper drm snd_seq ipmi_devintf ipmi_msghandler fb_sys_fops syscopyarea snd_seq_device sysfillrect cfg80211 snd_timer sysimgblt snd soundcore mei_me mei mac_hid sch_fq_codel it87 hwmon_vid coretemp parport_pc ppdev lp parport ip_tables x_tables autofs4 xfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log i2c_i801 ahci lpc_ich libahci r8169 realtek video [ 943.298672] CR2: 0000000000000000 [ 943.298674] ---[ end trace 62d503b51a37a64a ]--- [ 943.298675] RIP: 0010:usb_ifnum_to_if+0x24/0x60 [ 943.298676] Code: ff c3 0f 1f 40 00 0f 1f 44 00 00 55 48 8b 87 c0 03 00 00 48 89 e5 48 85 c0 74 43 0f b6 48 04 84 c9 74 39 48 8b 90 98 00 00 00 <48> 8b 3a 0f b6 7f 02 39 fe 74 2b 48 8d 90 a0 00 00 00 8d 41 ff 48 [ 943.298677] RSP: 0018:ffffbdae493dbab0 EFLAGS: 00010202 [ 943.298678] RAX: ffffa106ae527000 RBX: ffffa1070ad0a800 RCX: 0000000000000004 [ 943.298679] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffa1070ad0a800 [ 943.298680] RBP: ffffbdae493dbab0 R08: 0000000000027040 R09: ffffffffb57825b8 [ 943.298680] R10: fffffba45fce4bc0 R11: 0000000000000001 R12: 0000000000000000 [ 943.298681] R13: ffffa10644187b98 R14: 00000000ffffff92 R15: ffffa1075131a000 [ 943.298682] FS: 00007f93c40d7700(0000) GS:ffffa1075ea00000(0000) knlGS:0000000000000000 [ 943.298683] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 943.298684] CR2: 0000000000000000 CR3: 00000006f8a94004 CR4: 00000000001606f0 Interestingly, this doesn't crash the machine, but it does seem to crash udev or whatever is responsible for updating USB device state, as I've disconnected the webcam but running lsusb still shows it as connected. This is something of a pain as the only way I could file this report was to ssh in from another machine with X forwarding enabled, as my keyboard and mouse no longer function. Note that sometimes OBS will work fine with this camera, however this bug will still occur when I attempt to change the camera resolution. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: linux-modules-extra-5.0.0-13-generic 5.0.0-13.14 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: bburns 3961 F.... pulseaudio /dev/snd/pcmC1D7p: bburns 3961 F...m pulseaudio /dev/snd/controlC0: bburns 3961 F.... pulseaudio /dev/snd/pcmC0D1c: bburns 3961 F...m pulseaudio Date: Thu May 2 18:47:59 2019 HibernationDevice: RESUME=none InstallationDate: Installed on 2018-07-30 (276 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: Gigabyte Technology Co., Ltd. Z87-HD3 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-13-generic root=/dev/mapper/cl_box-root ro RelatedPackageVersions: linux-restricted-modules-5.0.0-13-generic N/A linux-backports-modules-5.0.0-13-generic N/A linux-firmware 1.178 SourcePackage: linux UpgradeStatus: Upgraded to disco on 2019-04-24 (8 days ago) dmi.bios.date: 01/20/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F7 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z87-HD3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: To be filled by O.E.M. dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF7:bd01/20/2014:svnGigabyteTechnologyCo.,Ltd.:pnZ87-HD3:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ87-HD3:rvrTobefilledbyO.E.M.:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: Z87-HD3 dmi.product.sku: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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