I tested 5.7.0-050700-generic, and the system didn't crash. I'm able to use Lakka from QEMU most of the times. Once, a GPU hang happened, but I was able to restart LightDM to fix it.
The attached file is the card0/error after the GPU hang. ** Attachment added: "card0/error" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880049/+attachment/5379573/+files/gpuhanglakkagvtg.txt -- 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/1880049 Title: Using Lakka with Intel GVT-g freezes the host system Status in linux package in Ubuntu: Confirmed Bug description: I tried to start Lakka (http://www.lakka.tv/) using QEMU with Intel GVT-g and, when the graphics should start loading, the system freezes. The command line used was: The command line I used to start QEMU was: sudo qemu-system-x86_64 -m 1024 -cpu Skylake-Client -vga none -accel kvm -device nec-usb-xhci -device usb-host,id=maxprint,vendorid=0x13fe -boot menu=on -serial vc -serial stdio -display gtk,gl=on -device vfio-pci,sysfsdev=/sys/bus/pci/devices/0000:00:02.0/20312cec-80f4 -448a-9f09-7b93adbf672c,x-igd- opregion=on,display=on,addr=0x5,rombar=0,id=iHD520 -bios /usr/share/ovmf/OVMF.fd Relevant syslog messages with the BUG: May 21 21:50:35 Lenovo-ideapad-310-14ISK kernel: [ 7672.207424] vfio_mdev 20312cec-80f4-448a-9f09-7b93adbf672c: Adding to iommu group 0 May 21 21:50:35 Lenovo-ideapad-310-14ISK kernel: [ 7672.207427] vfio_mdev 20312cec-80f4-448a-9f09-7b93adbf672c: MDEV: group_id = 0 May 21 21:50:42 Lenovo-ideapad-310-14ISK dbus-daemon[21697]: [session uid=0 pid=21695] AppArmor D-Bus mediation is enabled May 21 21:51:06 Lenovo-ideapad-310-14ISK kernel: [ 7703.690519] usb 1-3: reset high-speed USB device number 10 using xhci_hcd May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354929] BUG: kernel NULL pointer dereference, address: 0000000000000008 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354932] #PF: supervisor write access in kernel mode May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354933] #PF: error_code(0x0002) - not-present page May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354935] PGD 0 P4D 0 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354937] Oops: 0002 [#1] SMP PTI May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354940] CPU: 2 PID: 254 Comm: gvt workload 0 Tainted: P C O 5.4.0-32-generic #36-Ubuntu May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354941] Hardware name: LENOVO 80UG/Toronto 4A2, BIOS 0XCN45WW 08/09/2018 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354979] RIP: 0010:prepare_workload+0xf6/0x480 [i915] May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354981] Code: 1a 00 00 48 8b 4f 40 48 8b 40 20 4c 8b 40 40 31 c0 83 7f 18 0c 49 8b 90 f0 02 00 00 74 24 48 63 f0 48 83 c0 01 48 8b 54 f2 20 <48> 89 4a 08 48 83 f8 04 74 12 49 8b 90 f0 02 00 00 48 8b 4c c7 40 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354983] RSP: 0018:ffffb39a403fbdb0 EFLAGS: 00010202 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354984] RAX: 0000000000000001 RBX: ffff8c46bb376900 RCX: 00000004565c8000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354985] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8c47d4f9a840 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354987] RBP: ffffb39a403fbde8 R08: ffff8c471382fc00 R09: 0000e6580000e558 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354988] R10: 0000e45c0000e758 R11: 0000e65c0000e55c R12: fffff5a6d1436180 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354989] R13: 0000000000000000 R14: ffff8c46bb376900 R15: ffff8c47d8e88000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354990] FS: 0000000000000000(0000) GS:ffff8c47de300000(0000) knlGS:0000000000000000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354992] CR2: 0000000000000008 CR3: 00000004565cc004 CR4: 00000000003626e0 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354994] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.354996] Call Trace: May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355028] workload_thread+0x50d/0xde0 [i915] May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355032] ? __switch_to_asm+0x40/0x70 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355036] ? do_wait_intr_irq+0xa0/0xa0 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355038] kthread+0x104/0x140 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355065] ? intel_vgpu_clean_workloads+0x100/0x100 [i915] May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355067] ? kthread_park+0x90/0x90 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355070] ret_from_fork+0x35/0x40 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355071] Modules linked in: nls_utf8 exfat(C) ccm ip6table_nat xt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle xt_comment bridge stp llc zfs(PO) zunicode(PO) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) zlua(PO) nf_tables nfnetlink rfcomm cmac algif_hash algif_skcipher af_alg bnep binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic intel_rapl_msr ledtrig_audio mei_hdcp snd_hda_intel snd_intel_dspcfg intel_rapl_common snd_hda_codec x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_core uvcvideo snd_hwdep snd_pcm rtsx_usb_ms snd_seq_midi videobuf2_vmalloc videobuf2_memops snd_seq_midi_event kvm_intel memstick videobuf2_v4l2 snd_rawmidi videobuf2_common videodev crct10dif_pclmul ghash_clmulni_intel mc snd_seq aesni_intel snd_seq_device hid_dr snd_timer ff_memless crypto_simd cryptd btusb snd btrtl btbcm btintel glue_helper bluetooth soundcore intel_cstate intel_rapl_perf joydev input_leds serio_raw ideapad_laptop May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355098] intel_wmi_thunderbolt ecdh_generic ecc mei_me intel_xhci_usb_role_switch sparse_keymap mei roles intel_pch_thermal mac_hid acpi_pad 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 xt_limit xt_addrtype sch_fq_codel xt_tcpudp xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cuse parport_pc ip6table_filter ip6_tables ppdev iptable_filter bpfilter lp parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c z3fold rndis_host cdc_ether usbnet bfq kvmgt vfio_mdev mdev kvm nbd mii hid_generic usbhid hid rtsx_usb_sdmmc rtsx_usb uas usb_storage ath10k_pci ath10k_core ath i915 mac80211 i2c_algo_bit drm_kms_helper cfg80211 crc32_pclmul syscopyarea sysfillrect sysimgblt fb_sys_fops psmouse i2c_i801 r8169 ahci drm libarc4 realtek libahci wmi video May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355125] CR2: 0000000000000008 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355127] ---[ end trace 5f6a690ec2c91e75 ]--- May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355155] RIP: 0010:prepare_workload+0xf6/0x480 [i915] May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355156] Code: 1a 00 00 48 8b 4f 40 48 8b 40 20 4c 8b 40 40 31 c0 83 7f 18 0c 49 8b 90 f0 02 00 00 74 24 48 63 f0 48 83 c0 01 48 8b 54 f2 20 <48> 89 4a 08 48 83 f8 04 74 12 49 8b 90 f0 02 00 00 48 8b 4c c7 40 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355158] RSP: 0018:ffffb39a403fbdb0 EFLAGS: 00010202 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355159] RAX: 0000000000000001 RBX: ffff8c46bb376900 RCX: 00000004565c8000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355160] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8c47d4f9a840 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355161] RBP: ffffb39a403fbde8 R08: ffff8c471382fc00 R09: 0000e6580000e558 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355162] R10: 0000e45c0000e758 R11: 0000e65c0000e55c R12: fffff5a6d1436180 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355163] R13: 0000000000000000 R14: ffff8c46bb376900 R15: ffff8c47d8e88000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355164] FS: 0000000000000000(0000) GS:ffff8c47de300000(0000) knlGS:0000000000000000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355167] CR2: 0000000000000008 CR3: 00000004565cc004 CR4: 00000000003626e0 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355168] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 21 21:51:07 Lenovo-ideapad-310-14ISK kernel: [ 7704.355169] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 May 21 21:51:17 Lenovo-ideapad-310-14ISK kernel: [ 7714.699920] sysrq: Emergency Sync May 21 21:51:17 Lenovo-ideapad-310-14ISK kernel: [ 7714.708987] Emergency Sync complete ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-32-generic 5.4.0-32.36 ProcVersionSignature: Ubuntu 5.4.0-32.36-generic 5.4.41 Uname: Linux 5.4.0-32-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: usuario 1950 F.... pulseaudio /dev/snd/pcmC0D0p: usuario 1950 F...m pulseaudio CasperMD5CheckResult: skip Date: Thu May 21 22:02:28 2020 HibernationDevice: RESUME=UUID=a82e38a0-8d20-49dd-9cbd-de7216b589fc InstallationDate: Installed on 2017-06-13 (1073 days ago) InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) MachineType: LENOVO 80UG ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-32-generic root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro quiet ro kvm.ignore_msrs=1 kvm.report_ignored_msrs=0 kvm.halt_poll_ns=0 kvm.halt_poll_ns_grow=0 i915.enable_gvt=1 resume=UUID=a82e38a0-8d20-49dd-9cbd-de7216b589fc log_buf_len=16M usbhid.quirks=0x0079:0x0006:0x100000 mtrr_gran_size=64M mtrr_chunk_size=64M nbd.nbds_max=2 nbd.max_part=63 cgroup_enable=memory swapaccount=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.4.0-32-generic N/A linux-backports-modules-5.4.0-32-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2019-12-22 (151 days ago) dmi.bios.date: 08/09/2018 dmi.bios.vendor: LENOVO dmi.bios.version: 0XCN45WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Toronto 4A2 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40679 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad 310-14ISK dmi.modalias: dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:svnLENOVO:pn80UG:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK: dmi.product.family: IDEAPAD dmi.product.name: 80UG dmi.product.sku: LENOVO_MT_80UG_BU_idea_FM_Lenovo ideapad 310-14ISK dmi.product.version: Lenovo ideapad 310-14ISK dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880049/+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
