failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.10.1" "pwd"]: exit status 255 ssh: connect to host 10.128.10.1 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-kasan-gce-smack-root-test-1 port 1 (session ID: 530470fd5a1ef147fb5cdbf3d3269a3da185a99b37cd8af2fb03c67a02b15ba5, active connections: 1). 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 2e5a10cb-61cc-22d4-e802-4e600584d467 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 0x000f2700: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... [ 0.000000][ T0] Linux version 5.19.0-rc1-syzkaller-00003-ge71e60cd74df (syzkaller@syzkaller) (Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2) #0 SMP PREEMPT_DYNAMIC now [ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 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] signal: max sigframe size: 1776 [ 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] ********************************************************** [ 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] 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 [ 0.000008][ T0] kvm-clock: using sched offset of 4247740026 cycles [ 0.000791][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003179][ T0] tsc: Detected 2200.180 MHz processor [ 0.007189][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.008288][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.009448][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.016385][ T0] found SMP MP-table at [mem 0x000f29c0-0x000f29cf] [ 0.017580][ T0] Using GB pages for direct mapping [ 0.019957][ T0] ACPI: Early table checksum verification disabled [ 0.020942][ T0] ACPI: RSDP 0x00000000000F2740 000014 (v00 Google) [ 0.022042][ T0] ACPI: RSDT 0x00000000BFFFFF90 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.023485][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.025229][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.026883][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.027976][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.029122][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.030821][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.032128][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.033788][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.035247][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.036480][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.037927][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.039217][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.040625][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.041787][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.043281][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.044395][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.045628][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.046347][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.047035][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.047943][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.048830][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.049950][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.051461][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.052940][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.054071][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.055599][ T0] NODE_DATA(0) allocated [mem 0x13fffa000-0x13fffffff] [ 0.057235][ T0] NODE_DATA(1) allocated [mem 0x23fff7000-0x23fffcfff] [ 0.097795][ T0] Zone ranges: [ 0.098288][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.099678][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.100742][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.102002][ T0] Device empty [ 0.102643][ T0] Movable zone start for each node [ 0.103310][ T0] Early memory node ranges [ 0.103910][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.104823][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.105759][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.106675][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.107635][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.108764][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.109796][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.110004][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.162377][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.519245][ T0] kasan: KernelAddressSanitizer initialized [ 0.522183][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.522842][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.523994][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.525266][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.526482][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.527647][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.529125][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.530323][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.531403][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.532329][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.533742][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.535004][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.536242][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.537473][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.538664][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.539950][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.541339][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.542379][ T0] Booting paravirtualized kernel on KVM [ 0.543466][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.627695][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.629795][ T0] percpu: Embedded 69 pages/cpu s242888 r8192 d31544 u1048576 [ 0.631140][ T0] kvm-guest: PV spinlocks enabled [ 0.632197][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.633368][ T0] Fallback order for Node 0: 0 1 [ 0.634283][ T0] Fallback order for Node 1: 1 0 [ 0.635061][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064125 [ 0.636263][ T0] Policy zone: Normal [ 0.636817][ 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 page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off 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 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.650246][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.653066][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.654355][ T0] Stack Depot early init allocating hash table with memblock_alloc, 8388608 bytes [ 1.543609][ T0] Memory: 6823604K/8388204K available (153629K kernel code, 24929K rwdata, 31788K rodata, 2528K init, 35728K bss, 1564344K reserved, 0K cma-reserved) [ 1.547608][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.551237][ T0] Dynamic Preempt: full [ 1.552645][ T0] Running RCU self tests [ 1.553213][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.554138][ T0] rcu: RCU lockdep checking is enabled. [ 1.554987][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.556245][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.557630][ T0] rcu: RCU debug extended QS entry/exit. [ 1.558547][ T0] All grace periods are expedited (rcu_expedited). [ 1.559655][ T0] Trampoline variant of Tasks RCU enabled. [ 1.560490][ T0] Tracing variant of Tasks RCU enabled. [ 1.561309][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.562614][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.596041][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.597841][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.599265][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823bc00000-0xffff88823be00000 [ 1.600916][ T0] random: crng init done [ 1.602777][ T0] Console: colour VGA+ 80x25 [ 1.603869][ T0] printk: console [ttyS0] enabled [ 1.603869][ T0] printk: console [ttyS0] enabled [ 1.605618][ T0] printk: bootconsole [earlyser0] disabled [ 1.605618][ T0] printk: bootconsole [earlyser0] disabled [ 1.607398][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.608684][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.613918][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.614658][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.616460][ T0] ... CLASSHASH_SIZE: 4096 [ 1.617664][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.618618][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.619878][ T0] ... CHAINHASH_SIZE: 131072 [ 1.620765][ T0] memory used by lock dependency info: 20657 kB [ 1.621927][ T0] memory used for stack traces: 8320 kB [ 1.622838][ T0] per task-struct memory footprint: 1920 bytes [ 1.624162][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.626035][ T0] ACPI: Core revision 20220331 [ 1.627476][ T0] APIC: Switch to symmetric I/O mode setup [ 1.633334][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.634888][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6dce9b83, max_idle_ns: 440795217339 ns [ 1.637010][ T0] Calibrating delay loop (skipped) preset value.. 4400.36 BogoMIPS (lpj=22001800) [ 1.646990][ T0] pid_max: default: 32768 minimum: 301 [ 1.648406][ T0] LSM: Security Framework initializing [ 1.649626][ T0] landlock: Up and running. [ 1.650538][ T0] Yama: becoming mindful. [ 1.651891][ T0] TOMOYO Linux initialized [ 1.652858][ T0] Smack: Initializing. [ 1.653503][ T0] Smack: Netfilter enabled. [ 1.654267][ T0] Smack: IPv6 Netfilter enabled. [ 1.655139][ T0] LSM support for eBPF active [ 1.660492][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 1.663787][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 1.665435][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.667067][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.672217][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.673483][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.674486][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.676170][ T0] Spectre V2 : Kernel not compiled with retpoline; no mitigation available! [ 1.676178][ T0] Spectre V2 : Vulnerable [ 1.677740][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.678999][ T0] Spectre V2 : Enabling Restricted Speculation for firmware calls [ 1.680208][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.681830][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.683072][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.684928][ T0] TAA: Mitigation: Clear CPU buffers [ 1.686987][ T0] MDS: Mitigation: Clear CPU buffers [ 1.689807][ T0] Freeing SMP alternatives memory: 116K [ 1.811824][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.815888][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.816977][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.816977][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.816977][ T1] Running RCU-tasks wait API self tests [ 1.917497][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.920381][ T1] rcu: Hierarchical SRCU implementation. [ 1.921028][ T16] printk: console [ttyS0] printing thread started [ 1.927697][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.928406][ T1] smp: Bringing up secondary CPUs ... [ 1.929883][ T1] x86: Booting SMP configuration: [ 1.929889][ T1] .... node #0, CPUs: #1 [ 1.931028][ 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. [ 1.931028][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 1.931028][ T1] smp: Brought up 2 nodes, 2 CPUs [ 1.931028][ T1] smpboot: Max logical packages: 1 [ 1.931028][ T1] smpboot: Total of 2 processors activated (8800.72 BogoMIPS) [ 1.957037][ T13] Callback from call_rcu_tasks_trace() invoked. [ 1.977034][ T1] allocated 134217728 bytes of page_ext [ 1.977034][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.985164][ T1] Node 0, zone DMA32: page owner found early allocated 19123 pages [ 1.994853][ T1] Node 0, zone Normal: page owner found early allocated 100 pages [ 2.000309][ T1] Node 1, zone Normal: page owner found early allocated 19106 pages [ 2.001980][ T1] devtmpfs: initialized [ 2.007002][ T1] x86/mm: Memory block size: 128MB [ 2.037129][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.037313][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.041197][ T1] PM: RTC time: 01:58:06, date: 2022-06-07 [ 2.061706][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.064296][ T1] audit: initializing netlink subsys (disabled) [ 2.069579][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.069589][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.069803][ T1] cpuidle: using governor menu [ 2.069860][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.071505][ T1] HugeTLB: can optimize 4095 vmemmap pages for hugepages-1048576kB [ 2.072638][ T1] PCI: Using configuration type 1 for base access [ 2.077076][ T28] audit: type=2000 audit(1654567086.301:1): state=initialized audit_enabled=0 res=1 [ 2.137392][ T12] Callback from call_rcu_tasks() invoked. [ 2.297071][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 2.299471][ T1] HugeTLB: can optimize 7 vmemmap pages for hugepages-2048kB [ 2.299506][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 2.299517][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.316991][ T1] cryptd: max_cpu_qlen set to 1000 [ 2.322396][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 2.322408][ T1] raid6: using avx2x2 recovery algorithm [ 2.323686][ T1] ACPI: Added _OSI(Module Device) [ 2.323697][ T1] ACPI: Added _OSI(Processor Device) [ 2.323704][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.323712][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.323737][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.323759][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.323781][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.442822][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.631148][ T1] ACPI: Interpreter enabled [ 2.631583][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.631616][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.631963][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.631972][ T1] PCI: Using E820 reservations for host bridge windows [ 2.635935][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 2.782184][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 2.782275][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 2.782294][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 2.782862][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 2.800104][ T1] PCI host bridge to bus 0000:00 [ 2.800117][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 2.800140][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.800164][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.800186][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.800226][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 2.800252][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.800730][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 2.805801][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 2.834467][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 2.850617][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.853742][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 2.861769][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 2.868177][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 2.884171][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 2.891469][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 2.898109][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 2.913965][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 2.921730][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 2.946510][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 2.952403][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 2.959198][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 2.962975][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 2.980602][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 2.988217][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 2.991282][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 3.027232][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.032168][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.036829][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.045081][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.048970][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.067432][ T1] iommu: Default domain type: Translated [ 3.067444][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.072417][ T1] SCSI subsystem initialized [ 3.074477][ T1] ACPI: bus type USB registered [ 3.075060][ T1] usbcore: registered new interface driver usbfs [ 3.075319][ T1] usbcore: registered new interface driver hub [ 3.075511][ T1] usbcore: registered new device driver usb [ 3.077098][ T1] mc: Linux media interface: v0.10 [ 3.077285][ T1] videodev: Linux video capture interface: v2.00 [ 3.078043][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.078050][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.078146][ T1] PTP clock support registered [ 3.084192][ T1] EDAC MC: Ver: 3.0.0 [ 3.098998][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.101970][ T1] Bluetooth: Core ver 2.22 [ 3.102173][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.102180][ T1] Bluetooth: HCI device and connection manager initialized [ 3.102259][ T1] Bluetooth: HCI socket layer initialized [ 3.102281][ T1] Bluetooth: L2CAP socket layer initialized [ 3.102387][ T1] Bluetooth: SCO socket layer initialized [ 3.102464][ T1] NET: Registered PF_ATMPVC protocol family [ 3.102471][ T1] NET: Registered PF_ATMSVC protocol family [ 3.102868][ T1] NetLabel: Initializing [ 3.102872][ T1] NetLabel: domain hash size = 128 [ 3.102878][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.103232][ T1] NetLabel: unlabeled traffic allowed by default [ 3.105267][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.105603][ T1] NET: Registered PF_NFC protocol family [ 3.105678][ T1] PCI: Using ACPI for IRQ routing [ 3.106660][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.106673][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.106683][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.106703][ T1] vgaarb: loaded [ 3.109889][ T1] clocksource: Switched to clocksource kvm-clock [ 3.114278][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.114445][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.115065][ T1] FS-Cache: Loaded [ 3.116592][ T1] CacheFiles: Loaded [ 3.116936][ T1] TOMOYO: 2.6.0 [ 3.116936][ T1] Mandatory Access Control activated. [ 3.116936][ T1] pnp: PnP ACPI init [ 3.134326][ T1] pnp: PnP ACPI: found 7 devices [ 3.194475][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.195523][ T1] NET: Registered PF_INET protocol family [ 3.202432][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.212985][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, vmalloc) [ 3.215223][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 3.221644][ T1] TCP bind bhash tables hash table entries: 65536 (order: 10, 5242880 bytes, vmalloc hugepage) [ 3.231754][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.234800][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 3.241575][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 3.244480][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 3.246455][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.252369][ T1] RPC: Registered named UNIX socket transport module. [ 3.252380][ T1] RPC: Registered udp transport module. [ 3.252387][ T1] RPC: Registered tcp transport module. [ 3.252393][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.254177][ T1] NET: Registered PF_XDP protocol family [ 3.254213][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.254231][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.254245][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.254258][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 3.255379][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.255668][ T1] PCI: CLS 0 bytes, default 64 [ 3.267497][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.267507][ T1] software IO TLB: mapped [mem 0x00000000b5a00000-0x00000000b9a00000] (64MB) [ 3.267767][ T1] ACPI: bus type thunderbolt registered [ 3.272632][ T57] kworker/u4:2 (57) used greatest stack depth: 26336 bytes left [ 3.277244][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 3.305505][ T1] kvm: already loaded vendor module 'kvm_intel' [ 3.305524][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6dce9b83, max_idle_ns: 440795217339 ns [ 3.305610][ T1] clocksource: Switched to clocksource tsc [ 3.321262][ T64] kworker/u4:4 (64) used greatest stack depth: 24992 bytes left [ 5.186509][ T1] Initialise system trusted keyrings [ 5.191014][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 5.233228][ T1] zbud: loaded [ 5.242647][ T1] DLM installed [ 5.250386][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 5.262075][ T1] NFS: Registering the id_resolver key type [ 5.262144][ T1] Key type id_resolver registered [ 5.262150][ T1] Key type id_legacy registered [ 5.262509][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 5.262581][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 5.262587][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 5.272688][ T1] Key type cifs.spnego registered [ 5.272861][ T1] Key type cifs.idmap registered [ 5.273689][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 5.275948][ T1] ntfs3: Max link count 4000 [ 5.275960][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 5.275964][ T1] ntfs3: Read-only LZX/Xpress compression included [ 5.278893][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 5.279357][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 5.285041][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 5.285585][ T1] QNX4 filesystem 0.2.3 registered. [ 5.285860][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 5.287663][ T1] fuse: init (API version 7.36) [ 5.293132][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 5.293861][ T1] orangefs_init: module version upstream loaded [ 5.294883][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 5.317523][ T1] SGI XFS with ACLs, security attributes, realtime, quota, fatal assert, debug enabled [ 5.331178][ T1] 9p: Installing v9fs 9p2000 file system support [ 5.332645][ T1] NILFS version 2 loaded [ 5.332649][ T1] befs: version: 0.9.3 [ 5.334300][ T1] ocfs2: Registered cluster interface o2cb [ 5.335252][ T1] ocfs2: Registered cluster interface user [ 5.336260][ T1] OCFS2 User DLM kernel interface loaded [ 5.350960][ T1] gfs2: GFS2 installed [ 5.365360][ T1] ceph: loaded (mds proto 32) [ 5.379285][ T1] NET: Registered PF_ALG protocol family [ 5.379417][ T1] xor: automatically using best checksumming function avx [ 5.379452][ T1] async_tx: api initialized (async) [ 5.379470][ T1] Key type asymmetric registered [ 5.379490][ T1] Asymmetric key parser 'x509' registered [ 5.379494][ T1] Asymmetric key parser 'pkcs8' registered [ 5.379499][ T1] Key type pkcs7_test registered [ 5.382840][ T1] alg: self-tests for CTR-KDF (hmac(sha256)) passed [ 5.383162][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240) [ 5.383930][ T1] io scheduler mq-deadline registered [ 5.383936][ T1] io scheduler kyber registered [ 5.384589][ T1] io scheduler bfq registered [ 5.415704][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 5.468345][ T1] ACPI: button: Power Button [PWRF] [ 5.469791][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 5.470530][ T1] ACPI: button: Sleep Button [SLPF] [ 5.496062][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 5.496181][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 5.513926][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 5.514018][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 5.530904][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 5.531000][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 5.543865][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 5.564244][ T1] virtio_balloon virtio2: init_vqs: add stat_vq failed [ 5.565273][ T1] virtio_balloon: probe of virtio2 failed with error -5 [ 5.675720][ T340] kworker/u4:0 (340) used greatest stack depth: 24920 bytes left [ 5.951364][ T704] kworker/u4:4 (704) used greatest stack depth: 24824 bytes left [ 5.956243][ T1] N_HDLC line discipline registered with maxframe=4096 [ 5.956329][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.958849][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.966879][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.975535][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.983734][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 6.002013][ T1] Non-volatile memory driver v1.3 [ 286.257162][ T29] INFO: task swapper/0:1 blocked for more than 143 seconds. [ 286.258391][ T29] Not tainted 5.19.0-rc1-syzkaller-00003-ge71e60cd74df #0 [ 286.259805][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.261042][ T29] task:swapper/0 state:D stack:20600 pid: 1 ppid: 0 flags:0x00004000 [ 286.262408][ T29] Call Trace: [ 286.262883][ T29] [ 286.263316][ T29] __schedule+0x957/0xec0 [ 286.264114][ T29] ? __sched_text_start+0x8/0x8 [ 286.264945][ T29] ? __mutex_trylock_common+0x8e/0x2f0 [ 286.265836][ T29] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.266664][ T29] schedule+0xeb/0x1b0 [ 286.267447][ T29] schedule_preempt_disabled+0xf/0x20 [ 286.268229][ T29] __mutex_lock_common+0xecf/0x26c0 [ 286.268966][ T29] ? hwrng_register+0x3bf/0x680 [ 286.269696][ T29] ? mutex_lock_io_nested+0x60/0x60 [ 286.270493][ T29] ? set_current_rng+0x3aa/0x5d0 [ 286.271250][ T29] ? hwrng_register+0x680/0x680 [ 286.272074][ T29] mutex_lock_nested+0x17/0x20 [ 286.272773][ T29] hwrng_register+0x3bf/0x680 [ 286.273522][ T29] virtrng_scan+0x3e/0x90 [ 286.274272][ T29] ? virtrng_probe+0x20/0x20 [ 286.274931][ T29] virtio_dev_probe+0xa03/0xba0 [ 286.275673][ T29] ? virtio_uevent+0xa0/0xa0 [ 286.276378][ T29] call_driver_probe+0x96/0x250 [ 286.277254][ T29] really_probe+0x220/0x940 [ 286.281771][ T29] __driver_probe_device+0x1f4/0x3f0 [ 286.287124][ T29] driver_probe_device+0x50/0x240 [ 286.292167][ T29] __driver_attach+0x35f/0x5a0 [ 286.296920][ T29] ? driver_attach+0x40/0x40 [ 286.301557][ T29] bus_for_each_dev+0x188/0x1f0 [ 286.301557][ T29] bus_for_each_dev+0x188/0x1f0 [ 286.301588][ T29] ? bus_remove_file+0xd0/0xd0 [ 286.301606][ T29] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.301636][ T29] bus_add_driver+0x32f/0x600 [ 286.301667][ T29] driver_register+0x2e9/0x3e0 [ 286.301684][ T29] ? hwrng_modinit+0xef/0xef [ 286.301762][ T29] do_one_initcall+0xbd/0x2b0 [ 286.301791][ T29] ? IS_ERR_OR_NULL+0x20/0x20 [ 286.301830][ T29] do_initcall_level+0x168/0x218 [ 286.301861][ T29] do_initcalls+0x4b/0x8c [ 286.301881][ T29] kernel_init_freeable+0x43a/0x5c3 [ 286.301908][ T29] ? report_meminit+0x64/0x64 [ 286.301929][ T29] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.301950][ T29] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.302024][ T29] ? lockdep_hardirqs_on+0x95/0x140 [ 286.302060][ T29] ? rest_init+0x270/0x270 [ 286.302080][ T29] kernel_init+0x19/0x2b0 [ 286.302097][ T29] ? rest_init+0x270/0x270 [ 286.302113][ T29] ret_from_fork+0x1f/0x30 [ 286.302165][ T29] [ 286.302206][ T29] [ 286.302206][ T29] Showing all locks held in the system: [ 286.302217][ T29] 2 locks held by swapper/0/1: [ 286.302229][ T29] #0: ffff8881466e4170 (&dev->mutex){....}-{3:3}, at: __driver_attach+0x353/0x5a0 [ 286.302289][ T29] #1: ffffffff8d24c948 (reading_mutex){+.+.}-{3:3}, at: hwrng_register+0x3bf/0x680 [ 286.302347][ T29] 2 locks held by kworker/u4:0/8: [ 286.302359][ T29] #0: ffff888011c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 [ 286.302459][ T29] #1: ffffc900000d7d00 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 [ 286.302520][ T29] 2 locks held by pr/ttyS0/16: [ 286.302534][ T29] 1 lock held by khungtaskd/29: [ 286.302546][ T29] #0: ffffffff8cb1eb60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.302610][ T29] 1 lock held by hwrng/755: [ 286.302622][ T29] #0: ffffffff8d24c948 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0xec/0x470 [ 286.302680][ T29] [ 286.302686][ T29] ============================================= [ 286.302686][ T29] [ 286.302697][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 286.302707][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc1-syzkaller-00003-ge71e60cd74df #0 [ 286.302726][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 286.302736][ T29] Call Trace: [ 286.302744][ T29] [ 286.302752][ T29] dump_stack_lvl+0x1e3/0x2cb [ 286.302791][ T29] ? bfq_pos_tree_add_move+0x436/0x436 [ 286.302811][ T29] ? panic+0x76e/0x76e [ 286.302835][ T29] ? vscnprintf+0x59/0x80 [ 286.302885][ T29] panic+0x312/0x76e [ 286.302904][ T29] ? printk_prefer_direct_exit+0x4b/0x80 [ 286.302922][ T29] ? fb_is_primary_device+0xcc/0xcc [ 286.302939][ T29] ? panic+0x76e/0x76e [ 286.302961][ T29] ? debug_show_all_locks+0x24b/0x2a0 [ 286.302981][ T29] watchdog+0xd5d/0xd60 [ 286.303036][ T29] kthread+0x266/0x300 [ 286.303052][ T29] ? hungtask_pm_notify+0x50/0x50 [ 286.303068][ T29] ? kthread_blkcg+0xd0/0xd0 [ 286.303086][ T29] ret_from_fork+0x1f/0x30 [ 286.303115][ T29] [ 286.306566][ T29] Kernel Offset: disabled