[ 0.000000][ T0] Linux version 5.10.0-rc5-next-20201124-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Ubuntu) 2.26.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=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] nopcid: PCID feature disabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 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 e4ae001, primary cpu clock [ 0.000007][ T0] kvm-clock: using sched offset of 3074817014 cycles [ 0.002149][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.008011][ T0] tsc: Detected 2300.000 MHz processor [ 0.010743][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.012567][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.014558][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.021406][ T0] found SMP MP-table at [mem 0x000f25b0-0x000f25bf] [ 0.023407][ T0] Using GB pages for direct mapping [ 0.026580][ T0] ACPI: Early table checksum verification disabled [ 0.028189][ T0] ACPI: RSDP 0x00000000000F2330 000014 (v00 Google) [ 0.030167][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.032017][ T0] ACPI: FACP 0x00000000BFFFF340 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.035266][ T0] ACPI: DSDT 0x00000000BFFFDA80 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.038286][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.040082][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.041878][ T0] ACPI: SRAT 0x00000000BFFFFE70 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.044655][ T0] ACPI: APIC 0x00000000BFFFFDC0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.047933][ T0] ACPI: SSDT 0x00000000BFFFF440 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.050681][ T0] ACPI: WAET 0x00000000BFFFFE40 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.053581][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.054843][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.055970][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.057435][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.058850][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.061528][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.064896][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.068732][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.071468][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.074260][ T0] NODE_DATA(0) allocated [mem 0x13fffb000-0x13fffffff] [ 0.077006][ T0] NODE_DATA(1) allocated [mem 0x23fff8000-0x23fffcfff] [ 0.133597][ T0] Zone ranges: [ 0.134821][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.136556][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.138732][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.141127][ T0] Device empty [ 0.142256][ T0] Movable zone start for each node [ 0.143838][ T0] Early memory node ranges [ 0.145005][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.147312][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.149350][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.151742][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.153700][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.153708][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.187346][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.664762][ T0] kasan: KernelAddressSanitizer initialized [ 0.667465][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.669079][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.678481][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.681269][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.683339][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.685860][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.687917][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.690490][ T0] Using ACPI (MADT) for SMP configuration information [ 0.692370][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.694425][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.697084][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.699708][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.702390][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.704251][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.706839][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.709137][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.711923][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.713891][ T0] Booting paravirtualized kernel on KVM [ 0.715912][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.781173][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.784269][ T0] percpu: Embedded 64 pages/cpu s223176 r8192 d30776 u1048576 [ 0.786347][ T0] kvm-guest: stealtime: cpu 0, msr b9e1fb80 [ 0.787879][ T0] kvm-guest: PV spinlocks enabled [ 0.788724][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.790392][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064262 [ 0.792082][ T0] Policy zone: Normal [ 0.793387][ T0] Kernel command line: earlyprintk=serial oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb watchdog_thresh=55 workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 root=/dev/sda console=ttyS0 vsyscall=native BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-c [ 0.797751][ T0] ima: policy "tcb" not found [ 0.822101][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.640963][ T0] Memory: 6869448K/8388204K available (133151K kernel code, 31770K rwdata, 28296K rodata, 2624K init, 24048K bss, 1518500K reserved, 0K cma-reserved) [ 1.646211][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.650825][ T0] Running RCU self tests [ 1.651892][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.653650][ T0] rcu: RCU lockdep checking is enabled. [ 1.654952][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.657069][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.658985][ T0] rcu: RCU debug extended QS entry/exit. [ 1.661225][ T0] All grace periods are expedited (rcu_expedited). [ 1.663054][ T0] Trampoline variant of Tasks RCU enabled. [ 1.664610][ T0] Tracing variant of Tasks RCU enabled. [ 1.665883][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.668699][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.690745][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.692638][ T0] random: crng done (trusting CPU's manufacturer) [ 1.695532][ T0] Console: colour VGA+ 80x25 [ 1.697250][ T0] printk: console [ttyS0] enabled [ 1.697250][ T0] printk: console [ttyS0] enabled [ 1.700469][ T0] printk: bootconsole [earlyser0] disabled [ 1.700469][ T0] printk: bootconsole [earlyser0] disabled [ 1.703577][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.707052][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.708115][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.708961][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.711043][ T0] ... CLASSHASH_SIZE: 4096 [ 1.712865][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.713842][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.715517][ T0] ... CHAINHASH_SIZE: 32768 [ 1.717039][ T0] memory used by lock dependency info: 6365 kB [ 1.718526][ T0] memory used for stack traces: 4224 kB [ 1.720269][ T0] per task-struct memory footprint: 1920 bytes [ 1.722212][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.726600][ T0] ACPI: Core revision 20200925 [ 1.728697][ T0] APIC: Switch to symmetric I/O mode setup [ 1.733697][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.736346][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.739773][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.742137][ T0] pid_max: default: 32768 minimum: 301 [ 1.744340][ T0] LSM: Security Framework initializing [ 1.746260][ T0] Yama: becoming mindful. [ 1.747436][ T0] TOMOYO Linux initialized [ 1.749822][ T0] AppArmor: AppArmor initialized [ 1.750960][ T0] LSM support for eBPF active [ 1.761101][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.767141][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.769955][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.772749][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.778158][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.779793][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.782225][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.784410][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.784480][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.789786][ T0] MDS: Mitigation: Clear CPU buffers [ 1.791943][ T0] Freeing SMP alternatives memory: 104K [ 1.916144][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.919763][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.919763][ T1] rcu: Hierarchical SRCU implementation. [ 1.923489][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.926480][ T1] smp: Bringing up secondary CPUs ... [ 1.929915][ T1] x86: Booting SMP configuration: [ 1.931296][ T1] .... node #0, CPUs: #1 [ 0.047240][ T0] kvm-clock: cpu 1, msr e4ae041, secondary cpu clock [ 1.935409][ T14] kvm-guest: stealtime: cpu 1, msr b9f1fb80 [ 1.935409][ 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. [ 1.939931][ T1] smp: Brought up 2 nodes, 2 CPUs [ 1.941246][ T1] smpboot: Max logical packages: 1 [ 1.943101][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.950156][ T1] devtmpfs: initialized [ 1.952042][ T1] x86/mm: Memory block size: 128MB [ 1.991971][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.991893][ T22] kworker/u4:0 (22) used greatest stack depth: 27296 bytes left [ 1.994043][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.002105][ T1] PM: RTC time: 07:32:29, date: 2020-11-24 [ 2.006259][ T1] NET: Registered protocol family 16 [ 2.015073][ T1] audit: initializing netlink subsys (disabled) [ 2.017068][ T35] audit: type=2000 audit(1606203149.560:1): state=initialized audit_enabled=0 res=1 [ 2.023658][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.023658][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.026698][ T1] cpuidle: using governor menu [ 2.032269][ T1] NET: Registered protocol family 42 [ 2.041345][ T1] ACPI: bus type PCI registered [ 2.044785][ T1] PCI: Using configuration type 1 for base access [ 2.961426][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 2.962420][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 2.963133][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.992023][ T1] cryptd: max_cpu_qlen set to 1000 [ 3.030705][ T1] raid6: skip pq benchmark and using algorithm avx2x4 [ 3.032980][ T1] raid6: using avx2x2 recovery algorithm [ 3.034989][ T1] ACPI: Added _OSI(Module Device) [ 3.034989][ T1] ACPI: Added _OSI(Processor Device) [ 3.035550][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.037926][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 3.039801][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 3.041722][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 3.045067][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 3.101074][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.157222][ T1] ACPI: Interpreter enabled [ 3.158974][ T1] ACPI: (supports S0 S3 S4 S5) [ 3.159808][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.162269][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.168484][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.272015][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.275098][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.278007][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.285282][ T1] PCI host bridge to bus 0000:00 [ 3.286785][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.289806][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.292729][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.295043][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.298063][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.299805][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.302354][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.311925][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.335301][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.350799][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.356025][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.365931][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.371574][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfc000-0xfebfc07f] [ 3.391333][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.399659][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.403731][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebfd000-0xfebfd07f] [ 3.424846][ T1] pci 0000:00:05.0: [1af4:1002] type 00 class 0x00ff00 [ 3.434294][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 3.456549][ T1] pci 0000:00:06.0: [1af4:1005] type 00 class 0x00ff00 [ 3.464907][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 3.471644][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfebfe000-0xfebfe03f] [ 3.501638][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 3.509194][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 3.513547][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 3.518258][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 3.521637][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 3.535334][ T1] iommu: Default domain type: Translated [ 3.537821][ T1] vgaarb: loaded [ 3.544718][ T1] SCSI subsystem initialized [ 3.551097][ T1] ACPI: bus type USB registered [ 3.551097][ T1] usbcore: registered new interface driver usbfs [ 3.551097][ T1] usbcore: registered new interface driver hub [ 3.552098][ T1] usbcore: registered new device driver usb [ 3.554056][ T1] mc: Linux media interface: v0.10 [ 3.555579][ T1] videodev: Linux video capture interface: v2.00 [ 3.572170][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.572673][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.580306][ T1] PTP clock support registered [ 3.580615][ T1] EDAC MC: Ver: 3.0.0 [ 3.591975][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.593223][ T1] Bluetooth: Core ver 2.22 [ 3.602888][ T1] NET: Registered protocol family 31 [ 3.602888][ T1] Bluetooth: HCI device and connection manager initialized [ 3.602888][ T1] Bluetooth: HCI socket layer initialized [ 3.602888][ T1] Bluetooth: L2CAP socket layer initialized [ 3.604439][ T1] Bluetooth: SCO socket layer initialized [ 3.606550][ T1] NET: Registered protocol family 8 [ 3.609963][ T1] NET: Registered protocol family 20 [ 3.612282][ T1] NetLabel: Initializing [ 3.613296][ T1] NetLabel: domain hash size = 128 [ 3.619862][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.619862][ T1] NetLabel: unlabeled traffic allowed by default [ 3.621448][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.622878][ T1] NET: Registered protocol family 39 [ 3.624350][ T1] PCI: Using ACPI for IRQ routing [ 3.637859][ T1] clocksource: Switched to clocksource kvm-clock [ 6.902843][ T1] VFS: Disk quotas dquot_6.6.0 [ 6.904923][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 6.908078][ T1] FS-Cache: Loaded [ 6.910527][ T1] CacheFiles: Loaded [ 6.911821][ T1] TOMOYO: 2.6.0 [ 6.912724][ T1] Mandatory Access Control activated. [ 6.916872][ T1] AppArmor: AppArmor Filesystem Enabled [ 6.919653][ T1] pnp: PnP ACPI init [ 6.934428][ T1] pnp: PnP ACPI: found 7 devices [ 6.952525][ T1979] kworker/u4:0 (1979) used greatest stack depth: 26592 bytes left [ 6.997419][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 7.001825][ T1] NET: Registered protocol family 2 [ 7.004983][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 327680 bytes, vmalloc) [ 7.011660][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 7.019637][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc) [ 7.025544][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 7.028607][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 7.033409][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.036473][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.040940][ T1] NET: Registered protocol family 1 [ 7.044459][ T1] RPC: Registered named UNIX socket transport module. [ 7.046570][ T1] RPC: Registered udp transport module. [ 7.048479][ T1] RPC: Registered tcp transport module. [ 7.050855][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 7.055105][ T1] NET: Registered protocol family 44 [ 7.056394][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 7.058760][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 7.061624][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 7.063701][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 7.066700][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 7.068914][ T1] PCI: CLS 0 bytes, default 64 [ 7.074630][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 7.076071][ T1] software IO TLB: mapped [mem 0x00000000b5e00000-0x00000000b9e00000] (64MB) [ 7.084404][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 7.089117][ T1] kvm: already loaded the other module [ 7.091367][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 7.095391][ T1] clocksource: Switched to clocksource tsc [ 7.165003][ T1] Initialise system trusted keyrings [ 7.167056][ T2193] ------------[ cut here ]------------ [ 7.168715][ T2193] WARNING: CPU: 1 PID: 2193 at include/linux/memcontrol.h:621 prepare_kswapd_sleep+0xed/0x250 [ 7.170083][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 7.173614][ T2193] Modules linked in: [ 7.174915][ T2193] CPU: 1 PID: 2193 Comm: kswapd0 Not tainted 5.10.0-rc5-next-20201124-syzkaller #0 [ 7.178576][ T2193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.181635][ T2193] RIP: 0010:prepare_kswapd_sleep+0xed/0x250 [ 7.183043][ T2193] Code: 89 ee 48 89 df e8 73 d3 ff ff 31 ff 41 89 c4 89 c6 e8 87 19 d7 ff 45 84 e4 74 cc e8 6d 21 d7 ff 0f 1f 44 00 00 e8 63 21 d7 ff <0f> 0b 48 c7 c0 28 8d ee 8c 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 [ 7.188672][ T2193] RSP: 0000:ffffc9000894fda0 EFLAGS: 00010293 [ 7.195910][ T2193] RAX: 0000000000000000 RBX: ffff88813fffb000 RCX: ffffffff81998e19 [ 7.198639][ T2193] RDX: ffff8880175d5040 RSI: ffffffff81998e2d RDI: 0000000000000001 [ 7.200638][ T2193] RBP: 0000000000000000 R08: 0000000000000ab3 R09: 0000000000000f89 [ 7.203232][ T2193] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 7.206116][ T2193] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000003 [ 7.208601][ T2193] FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 7.211221][ T2193] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.213356][ T2193] CR2: 0000000000000000 CR3: 000000000b08e000 CR4: 00000000001506e0 [ 7.215128][ T2193] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 7.217038][ T2193] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 7.219069][ T2193] Call Trace: [ 7.219691][ T2193] kswapd+0x37d/0xdb0 [ 7.221335][ T2193] ? lock_downgrade+0x6d0/0x6d0 [ 7.222850][ T2193] ? balance_pgdat+0x1250/0x1250 [ 7.224656][ T2193] ? add_wait_queue+0x150/0x150 [ 7.228225][ T2193] ? lockdep_hardirqs_on+0x79/0x100 [ 7.229690][ T2193] ? __kthread_parkme+0x13f/0x1e0 [ 7.229881][ T1] zbud: loaded [ 7.230596][ T2193] ? balance_pgdat+0x1250/0x1250 [ 7.233282][ T2193] kthread+0x3b1/0x4a0 [ 7.234522][ T2193] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 7.236499][ T2193] ret_from_fork+0x1f/0x30 [ 7.237429][ T2193] Kernel panic - not syncing: panic_on_warn set ... [ 7.239502][ T2193] CPU: 1 PID: 2193 Comm: kswapd0 Not tainted 5.10.0-rc5-next-20201124-syzkaller #0 [ 7.240621][ T2193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.240621][ T2193] Call Trace: [ 7.240621][ T2193] dump_stack+0x107/0x163 [ 7.240621][ T2193] panic+0x306/0x73d [ 7.240621][ T2193] ? __warn_printk+0xf3/0xf3 [ 7.240621][ T2193] ? __warn.cold+0x1a/0x44 [ 7.250403][ T2193] ? __warn+0xf1/0x210 [ 7.251877][ T1] DLM installed [ 7.251847][ T2193] ? prepare_kswapd_sleep+0xed/0x250 [ 7.251847][ T2193] __warn.cold+0x35/0x44 [ 7.251847][ T2193] ? prepare_kswapd_sleep+0xed/0x250 [ 7.251847][ T2193] report_bug+0x1bd/0x210 [ 7.251847][ T2193] handle_bug+0x3c/0x60 [ 7.251847][ T2193] exc_invalid_op+0x14/0x40 [ 7.251847][ T2193] asm_exc_invalid_op+0x12/0x20 [ 7.261573][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 7.251847][ T2193] RIP: 0010:prepare_kswapd_sleep+0xed/0x250 [ 7.251847][ T2193] Code: 89 ee 48 89 df e8 73 d3 ff ff 31 ff 41 89 c4 89 c6 e8 87 19 d7 ff 45 84 e4 74 cc e8 6d 21 d7 ff 0f 1f 44 00 00 e8 63 21 d7 ff <0f> 0b 48 c7 c0 28 8d ee 8c 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 [ 7.251847][ T2193] RSP: 0000:ffffc9000894fda0 EFLAGS: 00010293 [ 7.251847][ T2193] RAX: 0000000000000000 RBX: ffff88813fffb000 RCX: ffffffff81998e19 [ 7.274366][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 7.274273][ T2193] RDX: ffff8880175d5040 RSI: ffffffff81998e2d RDI: 0000000000000001 [ 7.274273][ T2193] RBP: 0000000000000000 R08: 0000000000000ab3 R09: 0000000000000f89 [ 7.281271][ T1] NFS: Registering the id_resolver key type [ 7.277300][ T2193] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 7.277300][ T2193] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000003 [ 7.283133][ T1] Key type id_resolver registered [ 7.277300][ T2193] ? prepare_kswapd_sleep+0xd9/0x250 [ 7.286171][ T1] Key type id_legacy registered [ 7.277300][ T2193] ? prepare_kswapd_sleep+0xed/0x250 [ 7.290143][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 7.277300][ T2193] kswapd+0x37d/0xdb0 [ 7.292258][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 7.277300][ T2193] ? lock_downgrade+0x6d0/0x6d0 [ 7.277300][ T2193] ? balance_pgdat+0x1250/0x1250 [ 7.277300][ T2193] ? add_wait_queue+0x150/0x150 [ 7.277300][ T2193] ? lockdep_hardirqs_on+0x79/0x100 [ 7.277300][ T2193] ? __kthread_parkme+0x13f/0x1e0 [ 7.301049][ T2193] ? balance_pgdat+0x1250/0x1250 [ 7.302907][ T2193] kthread+0x3b1/0x4a0 [ 7.303812][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 7.303722][ T2193] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 7.303722][ T2193] ret_from_fork+0x1f/0x30 [ 7.308531][ T1] Key type cifs.spnego registered [ 7.307973][ T2193] Kernel Offset: disabled [ 7.307973][ T2193] Rebooting in 86400 seconds..