[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.166' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 76.669541][ T8] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 77.029567][ T8] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 77.040760][ T8] usb 1-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.40 [ 77.050973][ T8] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 77.063793][ T8] usb 1-1: config 0 descriptor?? [ 77.546635][ T8] keytouch 0003:0926:3333.0001: fixing up Keytouch IEC report descriptor [ 77.570568][ T8] input: HID 0926:3333 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:0926:3333.0001/input/input5 [ 77.677330][ T8] keytouch 0003:0926:3333.0001: input,hidraw0: USB HID v0.00 Keyboard [HID 0926:3333] on usb-dummy_hcd.0-1/input0 [ OK ] Stopped target Graphical Interface. [ OK ] Reached target Unmount All Filesystems. [ OK ] Stopped target Sound Card. [ OK ] Closed Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Stopped target Timers. [ OK ] Stopped Daily apt upgrade and clean activities. [ OK ] Stopped Daily Cleanup of Temporary Directories. [ OK ] Stopped Daily apt download activities. [ OK ] Stopped target System Time Synchronized. [ OK ] Stopped target Multi-User System. Stopping Serial Getty on ttyS0... executing program [ OK ] Stopped getty on tty2-tty6 if dbus and logind are not available. [ 78.591683][ T3164] usb 1-1: USB disconnect, device number 2 [ 78.599229][ C0] keytouch 0003:0926:3333.0001: usb_submit_urb(ctrl) failed: -19 Stopping Getty on tty3... Stopping Getty on tty5... Stopping Getty on tty4... Stopping Getty on tty6... Stopping System Logging Service... Stopping OpenBSD Secure Shell server... Stopping Getty on tty2... [ OK ] Stopped System Logging Service. [ OK ] Stopped Regular background program processing daemon. [ OK ] Stopped OpenBSD Secure Shell server. [ OK ] Stopped Getty on tty6. [ 79.178951][ T3164] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ OK ] Stopped Getty on tty5. [ OK ] Stopped Getty on tty4. [ OK ] Stopped Getty on tty3. [ OK ] Stopped Getty on tty1. [ OK ] Stopped Serial Getty on ttyS0. [ OK ] Stopped Getty on tty2. [ 79.609060][ T3164] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 79.631728][ T3164] usb 1-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.40 [ 79.644703][ T3164] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 79.662167][ T3164] usb 1-1: config 0 descriptor?? [ OK ] Removed slice system-serial\x2dgetty.slice. Stopping Permit User Sessions... [ OK ] Removed slice system-getty.slice. [ OK ] Stopped Permit User Sessions. [ OK ] Stopped target Remote File Systems. [ OK ] Stopped target Basic System. [ OK ] Stopped target Slices. [ OK ] Stopped target Sockets. [ OK ] Closed Syslog Socket. [ OK ] Stopped target Paths. [ OK ] Stopped target System Initialization. [ 80.150512][ T3164] keytouch 0003:0926:3333.0002: fixing up Keytouch IEC report descriptor [ OK ] Stopped target Encrypted Volumes. [ 80.165720][ T3164] input: HID 0926:3333 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:0926:3333.0002/input/input6 [ OK ] Stopped Forward Password Requests to Wall Directory Watch. [ OK ] Stopped Dispatch Password Requests to Console Directory Watch. [ 80.247340][ T3164] keytouch 0003:0926:3333.0002: input,hidraw0: USB HID v0.00 Keyboard [HID 0926:3333] on usb-dummy_hcd.0-1/input0 Stopping Load/Save Random Seed... [ OK ] Stopped Mark the need to relabel after reboot. Stopping Network Time Synchronization... [ OK ] Stopped target Swap. Stopping Update UTMP about System Boot/Shutdown... [ OK ] Stopped target Network. Stopping Raise network interfaces... [ OK ] Stopped Network Time Synchronization. [ OK ] Stopped Load/Save Random Seed. [ OK ] Stopped Update UTMP about System Boot/Shutdown. [ OK ] Stopped Create Volatile Files and Directories. executing program [ 81.127329][ T8] usb 1-1: USB disconnect, device number 3 [ 81.138552][ C1] keytouch 0003:0926:3333.0002: usb_submit_urb(ctrl) failed: -19 [ 81.558510][ T8] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 81.938523][ T8] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 81.949762][ T8] usb 1-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.40 [ 81.958843][ T8] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 81.968630][ T8] usb 1-1: config 0 descriptor?? [ 82.449229][ T8] keytouch 0003:0926:3333.0003: fixing up Keytouch IEC report descriptor [ 82.480167][ T8] input: HID 0926:3333 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/0003:0926:3333.0003/input/input7 [ 82.579522][ T8] keytouch 0003:0926:3333.0003: input,hidraw0: USB HID v0.00 Keyboard [HID 0926:3333] on usb-dummy_hcd.0-1/input0 [ OK ] Stopped Raise network interfaces. [ OK ] Stopped target Local File Systems. [ OK ] Stopped target Local File Systems (Pre). [ OK ] Stopped Create Static Device Nodes in /dev. [ OK ] Stopped Remount Root and Kernel File Systems. [ OK ] Stopped Apply Kernel Variables. [ OK ] Stopped Load Kernel Modules. [ OK ] Reached target Shutdown. [ 83.398809][ T1] printk: systemd-shutdow: 45 output lines suppressed due to ratelimiting [ 83.451139][ T1] systemd-shutdown[1]: Sending SIGTERM to remaining processes... [ 83.697478][ T4858] systemd-journald[4858]: Received SIGTERM from PID 1 (systemd-shutdow). [ 83.709371][ T8] usb 1-1: USB disconnect, device number 4 [ 83.718111][ C0] keytouch 0003:0926:3333.0003: usb_submit_urb(ctrl) failed: -19 [ 83.731924][ T4861] systemd-udevd (4861) used greatest stack depth: 22544 bytes left [ 83.754981][ T1] systemd-shutdown[1]: Sending SIGKILL to remaining processes... [ 83.870042][ T1] systemd-shutdown[1]: Unmounting file systems. [ 83.878716][ T1] systemd-shutdown[1]: Remounting '/' read-only with options ''. [ 83.989027][ T1] EXT4-fs (sda1): re-mounted. Opts: . Quota mode: none. [ 84.007619][ T1] systemd-shutdown[1]: Remounting '/' read-only with options ''. [ 84.015733][ T1] EXT4-fs (sda1): re-mounted. Opts: . Quota mode: none. [ 84.022926][ T1] systemd-shutdown[1]: All filesystems unmounted. [ 84.029472][ T1] systemd-shutdown[1]: Deactivating swaps. [ 84.036700][ T1] systemd-shutdown[1]: All swaps deactivated. [ 84.042835][ T1] systemd-shutdown[1]: Detaching loop devices. [ 84.129170][ T1] systemd-shutdown[1]: All loop devices detached. [ 84.200693][ T1] kvm: exiting hardware virtualization [ 84.211302][ T1] sd 0:0:1:0: [sda] Synchronizing SCSI cache [ 84.221794][ T1] reboot: Restarting system [ 84.226395][ T1] reboot: machine restart SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000200000000 = 8192 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID ac035810-d076-5c28-30a7-8a8b4aa306e2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2410: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... early console in extract_kernel input_data: 0x000000000bf5e2bf input_len: 0x00000000048a2885 output: 0x0000000001000000 output_len: 0x000000000e7bab68 kernel_total_size: 0x000000000f826000 needed_size: 0x000000000fa00000 trampoline_32bit: 0x000000000009d000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000][ T0] Linux version 5.12.0-rc7-next-20210415-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** This system shows unhashed kernel memory addresses ** [ 0.000000][ T0] ** via the console, logs, and other interfaces. This ** [ 0.000000][ T0] ** might reduce the security of your system. ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** If you see this message and you are not debugging ** [ 0.000000][ T0] ** the kernel, report this immediately to your system ** [ 0.000000][ T0] ** administrator! ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f3e4001, primary cpu clock [ 0.000008][ T0] kvm-clock: using sched offset of 4703142993 cycles [ 0.001698][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.007132][ T0] tsc: Detected 2300.000 MHz processor [ 0.013129][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.014660][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.016853][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.025242][ T0] found SMP MP-table at [mem 0x000f26d0-0x000f26df] [ 0.027745][ T0] Using GB pages for direct mapping [ 0.030348][ T0] ACPI: Early table checksum verification disabled [ 0.032490][ T0] ACPI: RSDP 0x00000000000F2450 000014 (v00 Google) [ 0.034452][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.036528][ T0] ACPI: FACP 0x00000000BFFFF340 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.038938][ T0] ACPI: DSDT 0x00000000BFFFDA80 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.042006][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.043713][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.045730][ T0] ACPI: SRAT 0x00000000BFFFFE70 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.048699][ T0] ACPI: APIC 0x00000000BFFFFDC0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.052214][ T0] ACPI: SSDT 0x00000000BFFFF440 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.055055][ T0] ACPI: WAET 0x00000000BFFFFE40 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.058158][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff340-0xbffff433] [ 0.059767][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffda80-0xbffff339] [ 0.062114][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffda40-0xbfffda7f] [ 0.064956][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffda40-0xbfffda7f] [ 0.067910][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe70-0xbfffff37] [ 0.070796][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdc0-0xbffffe35] [ 0.072650][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff440-0xbffffdbf] [ 0.075275][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe40-0xbffffe67] [ 0.077965][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.079739][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.080863][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.082750][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.084659][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.086877][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.089555][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.092257][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.094137][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.097693][ T0] NODE_DATA(0) allocated [mem 0x13fffb000-0x13fffffff] [ 0.100031][ T0] NODE_DATA(1) allocated [mem 0x23fff8000-0x23fffcfff] [ 0.240265][ T0] Zone ranges: [ 0.241172][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.244328][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.246773][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.248949][ T0] Device empty [ 0.249947][ T0] Movable zone start for each node [ 0.251338][ T0] Early memory node ranges [ 0.252684][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.254951][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.256549][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.259671][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.262055][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.265960][ T0] DMA zone: 28770 pages in unavailable ranges [ 0.290646][ T0] DMA32 zone: 3 pages in unavailable ranges [ 0.299704][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 1.437463][ T0] kasan: KernelAddressSanitizer initialized [ 1.440291][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 1.441702][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 1.443510][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 1.445908][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 1.448038][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 1.450263][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 1.452842][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 1.455302][ T0] Using ACPI (MADT) for SMP configuration information [ 1.457442][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 1.459149][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 1.460854][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 1.463700][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 1.465556][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 1.467708][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 1.469646][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 1.471264][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 1.473810][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 1.475982][ T0] Booting paravirtualized kernel on KVM [ 1.477732][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.540458][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 1.545656][ T0] percpu: Embedded 64 pages/cpu s224072 r8192 d29880 u1048576 [ 1.547791][ T0] kvm-guest: stealtime: cpu 0, msr b9c1f440 [ 1.549315][ T0] kvm-guest: PV spinlocks enabled [ 1.550919][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 1.554129][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064262 [ 1.555972][ T0] Policy zone: Normal [ 1.557773][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 no_hash_pointers root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 dummy_hcd.num=8 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 panic_on_warn=1 BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 [ 1.585718][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 2.452681][ T0] Memory: 6844996K/8388204K available (135201K kernel code, 33415K rwdata, 38472K rodata, 3992K init, 20760K bss, 1542952K reserved, 0K cma-reserved) [ 2.457839][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 2.461964][ T0] Running RCU self tests [ 2.463366][ T0] rcu: Preemptible hierarchical RCU implementation. [ 2.465059][ T0] rcu: RCU lockdep checking is enabled. [ 2.466680][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 2.468372][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 2.470378][ T0] rcu: RCU debug extended QS entry/exit. [ 2.471799][ T0] All grace periods are expedited (rcu_expedited). [ 2.473673][ T0] Trampoline variant of Tasks RCU enabled. [ 2.475078][ T0] Tracing variant of Tasks RCU enabled. [ 2.476342][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 2.478372][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 2.512208][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 2.515830][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823bc00000-0xffff88823be00000 [ 2.519901][ T0] random: crng done (trusting CPU's manufacturer) [ 2.522498][ T0] Console: colour VGA+ 80x25 [ 2.523849][ T0] printk: console [ttyS0] enabled [ 2.523849][ T0] printk: console [ttyS0] enabled [ 2.525704][ T0] printk: bootconsole [earlyser0] disabled [ 2.525704][ T0] printk: bootconsole [earlyser0] disabled [ 2.529213][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 2.532306][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 2.533917][ T0] ... MAX_LOCK_DEPTH: 48 [ 2.534962][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 2.536357][ T0] ... CLASSHASH_SIZE: 4096 [ 2.537743][ T0] ... MAX_LOCKDEP_ENTRIES: 65536 [ 2.540009][ T0] ... MAX_LOCKDEP_CHAINS: 131072 [ 2.541394][ T0] ... CHAINHASH_SIZE: 65536 [ 2.543089][ T0] memory used by lock dependency info: 11129 kB [ 2.545650][ T0] memory used for stack traces: 4224 kB [ 2.547761][ T0] per task-struct memory footprint: 1920 bytes [ 2.550403][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 2.555314][ T0] ACPI: Core revision 20210331 [ 2.557420][ T0] APIC: Switch to symmetric I/O mode setup [ 2.562768][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 2.564949][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 2.568622][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 2.570892][ T0] pid_max: default: 32768 minimum: 301 [ 2.572324][ T0] LSM: Security Framework initializing [ 2.573548][ T0] landlock: Up and running. [ 2.574473][ T0] Yama: becoming mindful. [ 2.575841][ T0] TOMOYO Linux initialized [ 2.578748][ T0] AppArmor: AppArmor initialized [ 2.580212][ T0] LSM support for eBPF active [ 2.595218][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 2.604907][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 2.608633][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.611715][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.617541][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 2.618640][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 2.620878][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 2.623259][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 2.623313][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 2.627047][ T0] MDS: Mitigation: Clear CPU buffers [ 2.630183][ T0] Freeing SMP alternatives memory: 108K [ 2.755142][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 2.758613][ T1] Running RCU-tasks wait API self tests [ 2.878880][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 2.882305][ T1] rcu: Hierarchical SRCU implementation. [ 2.888429][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.889541][ T1] smp: Bringing up secondary CPUs ... [ 2.893332][ T1] x86: Booting SMP configuration: [ 2.895055][ T1] .... node #0, CPUs: #1 [ 0.043180][ T0] kvm-clock: cpu 1, msr f3e4041, secondary cpu clock [ 2.901224][ T17] kvm-guest: stealtime: cpu 1, msr b9d1f440 [ 2.901224][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 2.902237][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.908636][ T1] smpboot: Max logical packages: 1 [ 2.909835][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 2.914745][ T1] devtmpfs: initialized [ 2.918703][ T12] Callback from call_rcu_tasks_trace() invoked. [ 2.914745][ T1] x86/mm: Memory block size: 128MB [ 2.954387][ T26] wait_for_initramfs() called before rootfs_initcalls [ 2.958730][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.958772][ T26] kworker/u4:0 (26) used greatest stack depth: 27328 bytes left [ 2.961449][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.971855][ T1] PM: RTC time: 03:11:59, date: 2021-04-21 [ 2.976531][ T1] NET: Registered protocol family 16 [ 2.984164][ T1] audit: initializing netlink subsys (disabled) [ 2.986382][ T37] audit: type=2000 audit(1618974719.365:1): state=initialized audit_enabled=0 res=1 [ 2.993096][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.993760][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.997024][ T46] kworker/u4:1 (46) used greatest stack depth: 26280 bytes left [ 2.997024][ T1] cpuidle: using governor menu [ 3.002351][ T1] NET: Registered protocol family 42 [ 3.005922][ T1] ACPI: bus type PCI registered [ 3.010267][ T1] PCI: Using configuration type 1 for base access [ 3.100420][ T11] Callback from call_rcu_tasks() invoked. [ 4.010867][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 4.011537][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 4.011537][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 4.040375][ T1] cryptd: max_cpu_qlen set to 1000 [ 4.079683][ T1] raid6: skip pq benchmark and using algorithm avx2x4 [ 4.083069][ T1] raid6: using avx2x2 recovery algorithm [ 4.085826][ T1] ACPI: Added _OSI(Module Device) [ 4.086666][ T1] ACPI: Added _OSI(Processor Device) [ 4.088741][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 4.090561][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 4.092530][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 4.094390][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 4.096792][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 4.162213][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 4.225771][ T1] ACPI: Interpreter enabled [ 4.228682][ T1] ACPI: (supports S0 S3 S4 S5) [ 4.230143][ T1] ACPI: Using IOAPIC for interrupt routing [ 4.232229][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 4.237465][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.338857][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 4.341507][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 4.344626][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 4.353863][ T1] PCI host bridge to bus 0000:00 [ 4.355423][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 4.358010][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 4.358638][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 4.360357][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 4.362561][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 4.364562][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.368920][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 4.378715][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 4.402472][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 4.423508][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.429499][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 4.438639][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 4.445625][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 4.465097][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 4.474473][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 4.482529][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 4.503487][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 4.522303][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 4.559574][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 4.566129][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 4.590104][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 4.601573][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 4.609785][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe802000-0xfe80203f] [ 4.646667][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.652488][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.659458][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.664620][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.668420][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.683422][ T1] iommu: Default domain type: Translated [ 4.687208][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.690232][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.690232][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.690232][ T1] vgaarb: loaded [ 4.703098][ T1] SCSI subsystem initialized [ 4.709035][ T1] ACPI: bus type USB registered [ 4.710212][ T1] usbcore: registered new interface driver usbfs [ 4.711554][ T1] usbcore: registered new interface driver hub [ 4.713257][ T1] usbcore: registered new device driver usb [ 4.716090][ T1] mc: Linux media interface: v0.10 [ 4.722631][ T1] videodev: Linux video capture interface: v2.00 [ 4.727050][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.728702][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.731366][ T1] PTP clock support registered [ 4.733569][ T1] EDAC MC: Ver: 3.0.0 [ 4.742485][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.751687][ T1] Bluetooth: Core ver 2.22 [ 4.753814][ T1] NET: Registered protocol family 31 [ 4.756576][ T1] Bluetooth: HCI device and connection manager initialized [ 4.759495][ T1] Bluetooth: HCI socket layer initialized [ 4.761570][ T1] Bluetooth: L2CAP socket layer initialized [ 4.763278][ T1] Bluetooth: SCO socket layer initialized [ 4.764657][ T1] NET: Registered protocol family 8 [ 4.766571][ T1] NET: Registered protocol family 20 [ 4.768309][ T1] NetLabel: Initializing [ 4.768851][ T1] NetLabel: domain hash size = 128 [ 4.770640][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.772866][ T1] NetLabel: unlabeled traffic allowed by default [ 4.776472][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.779183][ T1] NET: Registered protocol family 39 [ 4.780480][ T1] PCI: Using ACPI for IRQ routing [ 4.790200][ T1] clocksource: Switched to clocksource kvm-clock [ 5.391474][ T1] VFS: Disk quotas dquot_6.6.0 [ 5.393259][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 5.395804][ T1] FS-Cache: Loaded [ 5.398497][ T1] CacheFiles: Loaded [ 5.400297][ T1] TOMOYO: 2.6.0 [ 5.401345][ T1] Mandatory Access Control activated. [ 5.406694][ T1] AppArmor: AppArmor Filesystem Enabled [ 5.409167][ T1] pnp: PnP ACPI init [ 5.430835][ T1] pnp: PnP ACPI: found 7 devices [ 5.536039][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 5.540864][ T1] NET: Registered protocol family 2 [ 5.543934][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 5.554030][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 327680 bytes, vmalloc) [ 5.559016][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 5.578613][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc) [ 5.587756][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 5.594335][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 5.599813][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 5.604630][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 5.608135][ T1] NET: Registered protocol family 1 [ 5.612770][ T1] RPC: Registered named UNIX socket transport module. [ 5.614705][ T1] RPC: Registered udp transport module. [ 5.616017][ T1] RPC: Registered tcp transport module. [ 5.617610][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 5.625182][ T1] NET: Registered protocol family 44 [ 5.626662][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 5.628382][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 5.631152][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 5.633126][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 5.637142][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 5.639939][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 5.642483][ T1] PCI: CLS 0 bytes, default 64 [ 5.652500][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 5.654934][ T1] software IO TLB: mapped [mem 0x00000000b5c00000-0x00000000b9c00000] (64MB) [ 5.669083][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 5.703606][ T1] kvm: already loaded the other module [ 5.705256][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 5.709520][ T1] clocksource: Switched to clocksource tsc [ 8.383227][ T1] Initialise system trusted keyrings [ 8.386224][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 8.428012][ T1] zbud: loaded [ 8.437020][ T1] DLM installed [ 8.444504][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 8.454755][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 8.459661][ T1] NFS: Registering the id_resolver key type [ 8.461647][ T1] Key type id_resolver registered [ 8.463620][ T1] Key type id_legacy registered [ 8.464863][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 8.467436][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 8.470754][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 8.481329][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 8.485872][ T1] Key type cifs.spnego registered [ 8.488173][ T1] Key type cifs.idmap registered [ 8.490310][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 8.493606][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 8.495762][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 8.503078][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 8.505633][ T1] QNX4 filesystem 0.2.3 registered. [ 8.507716][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 8.510208][ T1] fuse: init (API version 7.33) [ 8.516106][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 8.519345][ T1] orangefs_init: module version upstream loaded [ 8.521532][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 8.542503][ T1] SGI XFS with ACLs, security attributes, realtime, quota, fatal assert, debug enabled [ 8.556131][ T1] 9p: Installing v9fs 9p2000 file system support [ 8.558401][ T1] FS-Cache: Netfs '9p' registered for caching [ 8.561348][ T1] NILFS version 2 loaded [ 8.562802][ T1] befs: version: 0.9.3 [ 8.565856][ T1] ocfs2: Registered cluster interface o2cb [ 8.568088][ T1] ocfs2: Registered cluster interface user [ 8.570438][ T1] OCFS2 User DLM kernel interface loaded [ 8.584824][ T1] gfs2: GFS2 installed [ 8.599203][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 8.601447][ T1] ceph: loaded (mds proto 32) [ 8.618436][ T1] NET: Registered protocol family 38 [ 8.621174][ T1] xor: automatically using best checksumming function avx [ 8.624044][ T1] async_tx: api initialized (async) [ 8.625426][ T1] Key type asymmetric registered [ 8.627579][ T1] Asymmetric key parser 'x509' registered [ 8.629169][ T1] Asymmetric key parser 'pkcs8' registered [ 8.630529][ T1] Key type pkcs7_test registered [ 8.631517][ T1] Asymmetric key parser 'tpm_parser' registered [ 8.633334][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 241) [ 8.635937][ T1] io scheduler mq-deadline registered [ 8.637040][ T1] io scheduler kyber registered [ 8.639432][ T1] io scheduler bfq registered [ 8.662283][ T1] usbcore: registered new interface driver udlfb [ 8.664996][ T1] usbcore: registered new interface driver smscufx [ 8.669941][ T1] uvesafb: failed to execute /sbin/v86d [ 8.672072][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 8.674422][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 8.675750][ T1] uvesafb: vbe_init() failed with -22 [ 8.677201][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 8.680722][ T1] vga16fb: mapped to 0xffff8880000a0000 [ 8.749528][ T1] Console: switching to colour frame buffer device 80x30 [ 9.053509][ T1] fb0: VGA16 VGA frame buffer device [ 9.058270][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 9.063839][ T1] ACPI: button: Power Button [PWRF] [ 9.066219][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 9.068904][ T1] ACPI: button: Sleep Button [SLPF] [ 9.092605][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 9.095251][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 9.114152][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 9.116370][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 9.134153][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 9.137202][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 9.151382][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 9.585809][ T1] N_HDLC line discipline registered with maxframe=4096 [ 9.588465][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 9.592010][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 9.599952][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 9.607059][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 9.614420][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 9.631498][ T1] Non-volatile memory driver v1.3 [ 9.647340][ T1] Linux agpgart interface v0.103 [ 9.656636][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 9.665634][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 9.687671][ T1] platform vkms: [drm] fb1: vkmsdrmfb frame buffer device [ 9.691478][ T1] usbcore: registered new interface driver udl