[ 0.000000][ T0] Linux version 5.12.0-rc2-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: earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/sda console=ttyS0 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 kvm-intel.emulate_invalid_guest_state=1 kvm-intel.eptad=1 kvm-intel.enable_shadow_vmcs=1 kvm-intel.pml=1 kvm-intel.enable_apicv=1 root=/dev/sda1 [ 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 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 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 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f38d001, primary cpu clock [ 0.000001][ T0] kvm-clock: using sched offset of 3685180811 cycles [ 0.012633][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.044339][ T0] tsc: Detected 2300.000 MHz processor [ 0.070080][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.083732][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.117265][ T0] found SMP MP-table at [mem 0x000f5c80-0x000f5c8f] [ 0.130424][ T0] Using GB pages for direct mapping [ 0.141364][ T0] ACPI: Early table checksum verification disabled [ 0.152433][ T0] ACPI: RSDP 0x00000000000F5AD0 000014 (v00 BOCHS ) [ 0.163616][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.179269][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.194948][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.211493][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.221225][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.237292][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.254305][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.274346][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.293753][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.317803][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.335540][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.355520][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.365076][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.374574][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.384190][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.393141][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.402888][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.411787][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.420712][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.429367][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.441067][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff] [ 0.454688][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile [ 0.472936][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug [ 0.486791][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff] [ 0.510339][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.529893][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.548281][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.577756][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.651474][ T0] Zone ranges: [ 0.656949][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.669688][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.687428][ T0] Normal empty [ 0.694951][ T0] Device empty [ 0.702518][ T0] Movable zone start for each node [ 0.712628][ T0] Early memory node ranges [ 0.722272][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.739235][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.757920][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.773469][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.773496][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.818718][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.874508][ T0] kasan: KernelAddressSanitizer initialized [ 1.891887][ T0] ACPI: PM-Timer IO Port: 0x608 [ 1.899544][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 1.910430][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 1.921946][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 1.933480][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 1.947312][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 1.960873][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 1.975916][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 1.989885][ T0] Using ACPI (MADT) for SMP configuration information [ 2.005567][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.018027][ T0] TSC deadline timer available [ 2.027826][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.040404][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.052348][ T0] kvm-guest: setup PV sched yield [ 2.062175][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.083848][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.099931][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.114045][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.127797][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.141259][ T0] Booting paravirtualized kernel on KVM [ 2.152326][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.248683][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2 [ 2.279643][ T0] percpu: Embedded 64 pages/cpu s223880 r8192 d30072 u1048576 [ 2.293371][ T0] kvm-guest: KVM setup async PF for cpu 0 [ 2.303662][ T0] kvm-guest: stealtime: cpu 0, msr 2ca1f440 [ 2.313772][ T0] kvm-guest: PV spinlocks enabled [ 2.323939][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.337121][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.350887][ T0] Policy zone: DMA32 [ 2.357290][ T0] Kernel command line: earlyprintk=serial oops=panic nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb 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 watchdog_thresh=55 workqueue.watchdog_thresh=140 panic_on_warn=1 earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/sda console=ttyS0 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 [ 2.375077][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 2.998153][ T0] Memory: 1441376K/2096620K available (135201K kernel code, 33244K rwdata, 38180K rodata, 3872K init, 17016K bss, 654988K reserved, 0K cma-reserved) [ 3.033477][ T0] Running RCU self tests [ 3.039103][ T0] rcu: Preemptible hierarchical RCU implementation. [ 3.048249][ T0] rcu: RCU lockdep checking is enabled. [ 3.057461][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 3.068511][ T0] rcu: RCU debug extended QS entry/exit. [ 3.077558][ T0] All grace periods are expedited (rcu_expedited). [ 3.087207][ T0] Trampoline variant of Tasks RCU enabled. [ 3.096224][ T0] Tracing variant of Tasks RCU enabled. [ 3.104944][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 3.162658][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 3.175160][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0x(____ptrval____)-0x(____ptrval____) [ 3.188778][ T0] random: crng done (trusting CPU's manufacturer) [ 3.270965][ T0] Console: colour VGA+ 80x25 [ 3.278207][ T0] printk: console [ttyS0] enabled [ 3.278207][ T0] printk: console [ttyS0] enabled [ 3.291408][ T0] printk: bootconsole [earlyser0] disabled [ 3.291408][ T0] printk: bootconsole [earlyser0] disabled [ 3.308119][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.321724][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.329390][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.337353][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.344844][ T0] ... CLASSHASH_SIZE: 4096 [ 3.353881][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 3.362214][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 3.370358][ T0] ... CHAINHASH_SIZE: 32768 [ 3.378199][ T0] memory used by lock dependency info: 6365 kB [ 3.387248][ T0] memory used for stack traces: 4224 kB [ 3.395224][ T0] per task-struct memory footprint: 1920 bytes [ 3.405819][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.423870][ T0] ACPI: Core revision 20210105 [ 3.433976][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 3.449071][ T0] APIC: Switch to symmetric I/O mode setup [ 3.456488][ T0] kvm-guest: setup PV IPIs [ 3.480583][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 3.491033][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 3.510188][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 3.520155][ T0] pid_max: default: 32768 minimum: 301 [ 3.531547][ T0] LSM: Security Framework initializing [ 3.540573][ T0] Yama: becoming mindful. [ 3.546145][ T0] TOMOYO Linux initialized [ 3.550246][ T0] SELinux: Initializing. [ 3.561442][ T0] LSM support for eBPF active [ 3.575802][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 3.593767][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.600708][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.620285][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.645378][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 3.653201][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 3.660155][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 3.670312][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 3.680236][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 3.680336][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 3.700179][ T0] MDS: Mitigation: Clear CPU buffers [ 3.711834][ T0] Freeing SMP alternatives memory: 104K [ 3.722579][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 3.736272][ T1] Running RCU-tasks wait API self tests [ 3.850570][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 3.862189][ T1] rcu: Hierarchical SRCU implementation. [ 3.870268][ T13] Callback from call_rcu_tasks_trace() invoked. [ 3.884791][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 3.893795][ T1] smp: Bringing up secondary CPUs ... [ 3.907646][ T1] x86: Booting SMP configuration: [ 3.910416][ T1] .... node #0, CPUs: #1 [ 0.315483][ T0] kvm-clock: cpu 1, msr f38d041, secondary cpu clock [ 3.937141][ T18] kvm-guest: KVM setup async PF for cpu 1 [ 3.939852][ T18] kvm-guest: stealtime: cpu 1, msr 2cb1f440 [ 3.951253][ 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. [ 3.973725][ T1] #2 [ 0.315483][ T0] kvm-clock: cpu 2, msr f38d081, secondary cpu clock [ 3.994723][ T23] kvm-guest: KVM setup async PF for cpu 2 [ 4.000135][ T23] kvm-guest: stealtime: cpu 2, msr 2cc1f440 [ 4.034378][ T1] #3 [ 0.315483][ T0] kvm-clock: cpu 3, msr f38d0c1, secondary cpu clock [ 4.060571][ T28] kvm-guest: KVM setup async PF for cpu 3 [ 4.070107][ T28] kvm-guest: stealtime: cpu 3, msr 2cd1f440 [ 4.070476][ T12] Callback from call_rcu_tasks() invoked. [ 4.082053][ T1] smp: Brought up 2 nodes, 4 CPUs [ 4.090227][ T1] smpboot: Max logical packages: 2 [ 4.097860][ T1] smpboot: Total of 4 processors activated (18400.00 BogoMIPS) [ 4.105073][ T1] devtmpfs: initialized [ 4.111745][ T1] x86/mm: Memory block size: 128MB [ 4.162214][ T37] kworker/u17:0 (37) used greatest stack depth: 27520 bytes left [ 4.170596][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.180285][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 4.204476][ T1] PM: RTC time: 22:10:15, date: 2021-03-07 [ 4.217698][ T1] NET: Registered protocol family 16 [ 4.241191][ T1] audit: initializing netlink subsys (disabled) [ 4.262553][ T61] kworker/u17:0 (61) used greatest stack depth: 27512 bytes left [ 4.260926][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 4.267418][ T51] audit: type=2000 audit(1615155016.185:1): state=initialized audit_enabled=0 res=1 [ 4.300218][ T1] thermal_sys: Registered thermal governor 'user_space' [ 4.301300][ T1] cpuidle: using governor menu [ 4.317786][ T1] NET: Registered protocol family 42 [ 4.339225][ T1] ACPI: bus type PCI registered [ 4.354114][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 4.360661][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 4.486599][ T1] PCI: Using configuration type 1 for base access [ 4.573572][ T215] kworker/u17:0 (215) used greatest stack depth: 26776 bytes left [ 4.600912][ T48] ------------[ cut here ]------------ [ 4.610287][ T48] raw_local_irq_restore() called with IRQs enabled [ 4.620291][ T48] WARNING: CPU: 3 PID: 48 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 [ 4.640228][ T48] Modules linked in: [ 4.646143][ T48] CPU: 3 PID: 48 Comm: kworker/u17:2 Not tainted 5.12.0-rc2-syzkaller #0 [ 4.660220][ T48] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 4.670297][ T48] Workqueue: events_unbound call_usermodehelper_exec_work [ 4.680273][ T48] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 4.690211][ T48] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d bd 36 af 04 00 74 01 c3 48 c7 c7 a0 8f 6b 89 c6 05 ac 36 af 04 01 e8 87 ba be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 4.720230][ T48] RSP: 0000:ffffc900006a7750 EFLAGS: 00010286 [ 4.729474][ T48] RAX: 0000000000000000 RBX: ffff888010c03e08 RCX: 0000000000000000 [ 4.740245][ T48] RDX: ffff88801175a0c0 RSI: ffffffff815c0ef5 RDI: fffff520000d4edc [ 4.760203][ T48] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 4.770225][ T48] R10: ffffffff815b9c5e R11: 0000000000000000 R12: 0000000000000003 [ 4.780210][ T48] R13: ffffed10021807c1 R14: 0000000000000001 R15: ffff88802cd36000 [ 4.800217][ T48] FS: 0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 [ 4.810231][ T48] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.820220][ T48] CR2: 0000000000000000 CR3: 000000000bc8e000 CR4: 0000000000150ee0 [ 4.830247][ T48] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4.840196][ T48] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4.850200][ T48] Call Trace: [ 4.855103][ T48] kvm_wait+0xc9/0xe0 [ 4.870207][ T48] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 4.878268][ T48] ? pv_hash+0x100/0x100 [ 4.880202][ T48] ? lock_release+0x720/0x720 [ 4.886340][ T48] do_raw_spin_lock+0x200/0x2b0 [ 4.890298][ T48] ? rwlock_bug.part.0+0x90/0x90 [ 4.896560][ T48] ? rwlock_bug.part.0+0x90/0x90 [ 4.910206][ T48] lockref_get+0x11/0x50 [ 4.915908][ T48] path_get+0x5d/0x80 [ 4.920193][ T48] copy_fs_struct+0x235/0x340 [ 4.926395][ T48] ? copy_process+0x2003/0x7080 [ 4.930293][ T48] copy_process+0x4e7b/0x7080 [ 4.937727][ T48] ? wake_up_new_task+0x7c7/0xe50 [ 4.940232][ T48] ? __cleanup_sighand+0xb0/0xb0 [ 4.950217][ T48] ? is_dynamic_key+0x1a0/0x1a0 [ 4.960216][ T48] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 4.968903][ T48] ? kernel_clone+0xc4/0xab0 [ 4.970198][ T48] kernel_clone+0xe7/0xab0 [ 4.975675][ T48] ? __lock_acquire+0x16b3/0x54c0 [ 4.990208][ T48] ? create_io_thread+0x150/0x150 [ 4.996702][ T48] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 5.000196][ T48] ? lock_downgrade+0x6e0/0x6e0 [ 5.006849][ T48] ? umh_complete+0x90/0x90 [ 5.010233][ T48] kernel_thread+0xb5/0xf0 [ 5.016155][ T48] ? __do_sys_clone3+0x2f0/0x2f0 [ 5.030204][ T48] ? umh_complete+0x90/0x90 [ 5.036605][ T48] call_usermodehelper_exec_work+0xcc/0x180 [ 5.040197][ T48] process_one_work+0x98d/0x1600 [ 5.047903][ T48] ? pwq_dec_nr_in_flight+0x320/0x320 [ 5.060216][ T48] ? rwlock_bug.part.0+0x90/0x90 [ 5.067780][ T48] ? _raw_spin_lock_irq+0x41/0x50 [ 5.070206][ T48] worker_thread+0x64c/0x1120 [ 5.076354][ T48] ? process_one_work+0x1600/0x1600 [ 5.080205][ T48] kthread+0x3b1/0x4a0 [ 5.085535][ T48] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 5.100207][ T48] ret_from_fork+0x1f/0x30 [ 5.106664][ T48] Kernel panic - not syncing: panic_on_warn set ... [ 5.110135][ T48] CPU: 3 PID: 48 Comm: kworker/u17:2 Not tainted 5.12.0-rc2-syzkaller #0 [ 5.110135][ T48] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 5.130229][ T48] Workqueue: events_unbound call_usermodehelper_exec_work [ 5.130229][ T48] Call Trace: [ 5.130229][ T48] dump_stack+0x141/0x1d7 [ 5.130229][ T48] panic+0x306/0x73d [ 5.130229][ T48] ? __warn_printk+0xf3/0xf3 [ 5.160212][ T48] ? __warn.cold+0x1a/0x44 [ 5.160212][ T48] ? warn_bogus_irq_restore+0x1d/0x20 [ 5.160212][ T48] __warn.cold+0x35/0x44 [ 5.160212][ T48] ? warn_bogus_irq_restore+0x1d/0x20 [ 5.190333][ T48] report_bug+0x1bd/0x210 [ 5.190333][ T48] handle_bug+0x3c/0x60 [ 5.190333][ T48] exc_invalid_op+0x14/0x40 [ 5.190333][ T48] asm_exc_invalid_op+0x12/0x20 [ 5.220226][ T48] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 5.220226][ T48] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d bd 36 af 04 00 74 01 c3 48 c7 c7 a0 8f 6b 89 c6 05 ac 36 af 04 01 e8 87 ba be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 5.250218][ T48] RSP: 0000:ffffc900006a7750 EFLAGS: 00010286 [ 5.250218][ T48] RAX: 0000000000000000 RBX: ffff888010c03e08 RCX: 0000000000000000 [ 5.250218][ T48] RDX: ffff88801175a0c0 RSI: ffffffff815c0ef5 RDI: fffff520000d4edc [ 5.280213][ T48] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 5.280213][ T48] R10: ffffffff815b9c5e R11: 0000000000000000 R12: 0000000000000003 [ 5.280213][ T48] R13: ffffed10021807c1 R14: 0000000000000001 R15: ffff88802cd36000 [ 5.310217][ T48] ? wake_up_klogd.part.0+0x8e/0xd0 [ 5.310217][ T48] ? vprintk_func+0x95/0x1e0 [ 5.310217][ T48] kvm_wait+0xc9/0xe0 [ 5.310217][ T48] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 5.340219][ T48] ? pv_hash+0x100/0x100 [ 5.340219][ T48] ? lock_release+0x720/0x720 [ 5.340219][ T48] do_raw_spin_lock+0x200/0x2b0 [ 5.340219][ T48] ? rwlock_bug.part.0+0x90/0x90 [ 5.370225][ T48] ? rwlock_bug.part.0+0x90/0x90 [ 5.370225][ T48] lockref_get+0x11/0x50 [ 5.370225][ T48] path_get+0x5d/0x80 [ 5.370225][ T48] copy_fs_struct+0x235/0x340 [ 5.370225][ T48] ? copy_process+0x2003/0x7080 [ 5.370225][ T48] copy_process+0x4e7b/0x7080 [ 5.400230][ T48] ? wake_up_new_task+0x7c7/0xe50 [ 5.400230][ T48] ? __cleanup_sighand+0xb0/0xb0 [ 5.400230][ T48] ? is_dynamic_key+0x1a0/0x1a0 [ 5.400230][ T48] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 5.400230][ T48] ? kernel_clone+0xc4/0xab0 [ 5.430227][ T48] kernel_clone+0xe7/0xab0 [ 5.430227][ T48] ? __lock_acquire+0x16b3/0x54c0 [ 5.430227][ T48] ? create_io_thread+0x150/0x150 [ 5.430227][ T48] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 5.460219][ T48] ? lock_downgrade+0x6e0/0x6e0 [ 5.460219][ T48] ? umh_complete+0x90/0x90 [ 5.460219][ T48] kernel_thread+0xb5/0xf0 [ 5.460219][ T48] ? __do_sys_clone3+0x2f0/0x2f0 [ 5.460219][ T48] ? umh_complete+0x90/0x90 [ 5.490207][ T48] call_usermodehelper_exec_work+0xcc/0x180 [ 5.490207][ T48] process_one_work+0x98d/0x1600 [ 5.490207][ T48] ? pwq_dec_nr_in_flight+0x320/0x320 [ 5.490207][ T48] ? rwlock_bug.part.0+0x90/0x90 [ 5.520202][ T48] ? _raw_spin_lock_irq+0x41/0x50 [ 5.520202][ T48] worker_thread+0x64c/0x1120 [ 5.520202][ T48] ? process_one_work+0x1600/0x1600 [ 5.520202][ T48] kthread+0x3b1/0x4a0 [ 5.520202][ T48] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 5.550216][ T48] ret_from_fork+0x1f/0x30 [ 5.550216][ T48] Dumping ftrace buffer: [ 5.550216][ T48] (ftrace buffer empty) [ 5.550216][ T48] Rebooting in 1 seconds.. [ 5.550216][ T48] ACPI MEMORY or I/O RESET_REG.