[ 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] ********************************************************** [ 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 2.8 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 f38b001, primary cpu clock [ 0.000001][ T0] kvm-clock: using sched offset of 3814769331 cycles [ 0.008212][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.034613][ T0] tsc: Detected 2300.000 MHz processor [ 0.054086][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.063812][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.088149][ T0] found SMP MP-table at [mem 0x000f5c80-0x000f5c8f] [ 0.096819][ T0] Using GB pages for direct mapping [ 0.106506][ T0] ACPI: Early table checksum verification disabled [ 0.115864][ T0] ACPI: RSDP 0x00000000000F5AD0 000014 (v00 BOCHS ) [ 0.125539][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.139598][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.153125][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.166975][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.175011][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.188853][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.202819][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.217376][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.231031][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.244805][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.257995][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.272173][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.279982][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.287509][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.295454][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.304053][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.311848][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.319740][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.327418][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.335016][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.343159][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff] [ 0.351417][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile [ 0.361553][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug [ 0.370611][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff] [ 0.383240][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.393119][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.405833][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.428684][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.510660][ T0] Zone ranges: [ 0.515555][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.525172][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.535360][ T0] Normal empty [ 0.540812][ T0] Device empty [ 0.546260][ T0] Movable zone start for each node [ 0.553968][ T0] Early memory node ranges [ 0.560577][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.571318][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.581524][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.592032][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.592053][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.628098][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.835907][ T0] kasan: KernelAddressSanitizer initialized [ 1.849643][ T0] ACPI: PM-Timer IO Port: 0x608 [ 1.855848][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 1.864562][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 1.873957][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 1.882886][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 1.893254][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 1.905078][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 1.917134][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 1.929261][ T0] Using ACPI (MADT) for SMP configuration information [ 1.939367][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 1.948343][ T0] TSC deadline timer available [ 1.955427][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 1.964263][ T0] kvm-guest: KVM setup pv remote TLB flush [ 1.973310][ T0] kvm-guest: setup PV sched yield [ 1.980891][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 1.992813][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.003935][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.014463][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.026124][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.037360][ T0] Booting paravirtualized kernel on KVM [ 2.046638][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.130915][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2 [ 2.165776][ T0] percpu: Embedded 64 pages/cpu s223880 r8192 d30072 u1048576 [ 2.175668][ T0] kvm-guest: KVM setup async PF for cpu 0 [ 2.182883][ T0] kvm-guest: stealtime: cpu 0, msr 2ca1f440 [ 2.190638][ T0] kvm-guest: PV spinlocks enabled [ 2.198586][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.209656][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.220289][ T0] Policy zone: DMA32 [ 2.226115][ 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 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 kvm-intel.emulate_invali [ 2.240149][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 2.862011][ T0] Memory: 1441376K/2096620K available (135201K kernel code, 33258K rwdata, 38244K rodata, 3868K init, 17024K bss, 654988K reserved, 0K cma-reserved) [ 2.888467][ T0] Running RCU self tests [ 2.893810][ T0] rcu: Preemptible hierarchical RCU implementation. [ 2.901171][ T0] rcu: RCU lockdep checking is enabled. [ 2.907561][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 2.915698][ T0] rcu: RCU debug extended QS entry/exit. [ 2.922514][ T0] All grace periods are expedited (rcu_expedited). [ 2.929873][ T0] Trampoline variant of Tasks RCU enabled. [ 2.936560][ T0] Tracing variant of Tasks RCU enabled. [ 2.942809][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 2.980359][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 2.990139][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88807ea00000-0xffff88807ec00000 [ 3.002757][ T0] random: crng done (trusting CPU's manufacturer) [ 3.078659][ T0] Console: colour VGA+ 80x25 [ 3.084448][ T0] printk: console [ttyS0] enabled [ 3.084448][ T0] printk: console [ttyS0] enabled [ 3.095843][ T0] printk: bootconsole [earlyser0] disabled [ 3.095843][ T0] printk: bootconsole [earlyser0] disabled [ 3.109973][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.121168][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.128164][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.134777][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.141237][ T0] ... CLASSHASH_SIZE: 4096 [ 3.148562][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 3.155045][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 3.161137][ T0] ... CHAINHASH_SIZE: 32768 [ 3.167168][ T0] memory used by lock dependency info: 6365 kB [ 3.174206][ T0] memory used for stack traces: 4224 kB [ 3.181321][ T0] per task-struct memory footprint: 1920 bytes [ 3.190611][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.206261][ T0] ACPI: Core revision 20210105 [ 3.216218][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 3.230991][ T0] APIC: Switch to symmetric I/O mode setup [ 3.239913][ T0] kvm-guest: setup PV IPIs [ 3.264542][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 3.274291][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 3.290819][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 3.300817][ T0] pid_max: default: 32768 minimum: 301 [ 3.313088][ T0] LSM: Security Framework initializing [ 3.321225][ T0] Yama: becoming mindful. [ 3.327517][ T0] TOMOYO Linux initialized [ 3.330905][ T0] SELinux: Initializing. [ 3.352154][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 3.365150][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.381090][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.391008][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.417943][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 3.422756][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 3.430813][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 3.440898][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 3.450911][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 3.451028][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 3.470837][ T0] MDS: Mitigation: Clear CPU buffers [ 3.481862][ T0] Freeing SMP alternatives memory: 104K [ 3.493029][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 3.507946][ T1] Running RCU-tasks wait API self tests [ 3.631119][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 3.641991][ T1] rcu: Hierarchical SRCU implementation. [ 3.650953][ T13] Callback from call_rcu_tasks_trace() invoked. [ 3.661576][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 3.673051][ T1] smp: Bringing up secondary CPUs ... [ 3.687218][ T1] x86: Booting SMP configuration: [ 3.690949][ T1] .... node #0, CPUs: #1 [ 0.280992][ T0] kvm-clock: cpu 1, msr f38b041, secondary cpu clock [ 3.713816][ T18] kvm-guest: KVM setup async PF for cpu 1 [ 3.718766][ T18] kvm-guest: stealtime: cpu 1, msr 2cb1f440 [ 3.731531][ 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. [ 3.753593][ T1] #2 [ 0.280992][ T0] kvm-clock: cpu 2, msr f38b081, secondary cpu clock [ 3.774363][ T23] kvm-guest: KVM setup async PF for cpu 2 [ 3.780793][ T23] kvm-guest: stealtime: cpu 2, msr 2cc1f440 [ 3.804807][ T1] #3 [ 0.280992][ T0] kvm-clock: cpu 3, msr f38b0c1, secondary cpu clock [ 3.843403][ T28] kvm-guest: KVM setup async PF for cpu 3 [ 3.849968][ T28] kvm-guest: stealtime: cpu 3, msr 2cd1f440 [ 3.851064][ T12] Callback from call_rcu_tasks() invoked. [ 3.876583][ T1] smp: Brought up 2 nodes, 4 CPUs [ 3.880900][ T1] smpboot: Max logical packages: 2 [ 3.887151][ T1] smpboot: Total of 4 processors activated (18400.00 BogoMIPS) [ 3.901674][ T1] devtmpfs: initialized [ 3.907298][ T1] x86/mm: Memory block size: 128MB [ 3.953723][ T37] kworker/u17:0 (37) used greatest stack depth: 27520 bytes left [ 3.960998][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 3.981957][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 4.001296][ T1] PM: RTC time: 19:32:18, date: 2021-03-11 [ 4.014549][ T1] NET: Registered protocol family 16 [ 4.027256][ T1] audit: initializing netlink subsys (disabled) [ 4.031869][ T51] audit: type=2000 audit(1615491139.114:1): state=initialized audit_enabled=0 res=1 [ 4.049607][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 4.049607][ T1] thermal_sys: Registered thermal governor 'user_space' [ 4.051764][ T1] cpuidle: using governor menu [ 4.077367][ T1] NET: Registered protocol family 42 [ 4.090561][ T1] ACPI: bus type PCI registered [ 4.103700][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 4.110846][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 4.259356][ T1] PCI: Using configuration type 1 for base access [ 4.292398][ T98] kworker/u17:2 (98) used greatest stack depth: 27512 bytes left [ 4.306931][ T102] ------------[ cut here ]------------ [ 4.310904][ T102] raw_local_irq_restore() called with IRQs enabled [ 4.320955][ T102] WARNING: CPU: 0 PID: 102 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 [ 4.330857][ T102] Modules linked in: [ 4.337006][ T102] CPU: 0 PID: 102 Comm: kworker/u17:2 Not tainted 5.12.0-rc2-syzkaller #0 [ 4.340866][ T102] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 4.350845][ T102] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 4.360858][ T102] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 11 6a ad 04 00 74 01 c3 48 c7 c7 20 79 6b 89 c6 05 00 6a ad 04 01 e8 35 c2 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 4.370853][ T102] RSP: 0000:ffffc90000997c58 EFLAGS: 00010282 [ 4.381020][ T102] RAX: 0000000000000000 RBX: ffffffff8be25ee0 RCX: 0000000000000000 [ 4.390849][ T102] RDX: ffff888012ab0140 RSI: ffffffff815b4435 RDI: fffff52000132f7d [ 4.400851][ T102] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 4.410851][ T102] R10: ffffffff815ad19e R11: 0000000000000000 R12: 0000000000000003 [ 4.420853][ T102] R13: fffffbfff17c4bdc R14: 0000000000000001 R15: ffff88802ca36000 [ 4.430883][ T102] FS: 0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 [ 4.440891][ T102] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.450902][ T102] CR2: ffff888010401000 CR3: 000000000bc8e000 CR4: 0000000000150ef0 [ 4.460915][ T102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4.470853][ T102] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4.480898][ T102] Call Trace: [ 4.487071][ T102] kvm_wait+0xc9/0xe0 [ 4.490878][ T102] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 4.500856][ T102] ? pv_hash+0x100/0x100 [ 4.510853][ T102] ? lock_release+0x720/0x720 [ 4.519530][ T102] do_raw_spin_lock+0x200/0x2b0 [ 4.520854][ T102] ? rwlock_bug.part.0+0x90/0x90 [ 4.529290][ T102] do_exit+0x1d05/0x2a60 [ 4.530855][ T102] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 4.540852][ T102] ? mm_update_next_owner+0x7a0/0x7a0 [ 4.550919][ T102] ? kfree+0x1d7/0x2b0 [ 4.560858][ T102] ? lockdep_hardirqs_on+0x79/0x100 [ 4.570871][ T102] call_usermodehelper_exec_async+0x413/0x580 [ 4.580875][ T102] ? umh_complete+0x90/0x90 [ 4.590856][ T102] ret_from_fork+0x1f/0x30 [ 4.600140][ T102] Kernel panic - not syncing: panic_on_warn set ... [ 4.600793][ T102] CPU: 0 PID: 102 Comm: kworker/u17:2 Not tainted 5.12.0-rc2-syzkaller #0 [ 4.600793][ T902] kworker/u17:4 (902) used greatest stack depth: 27032 bytes left [ 4.600793][ T102] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 4.600793][ T102] Call Trace: [ 4.600793][ T102] dump_stack+0x141/0x1d7 [ 4.600793][ T102] panic+0x306/0x73d [ 4.600793][ T102] ? __warn_printk+0xf3/0xf3 [ 4.600793][ T102] ? __warn.cold+0x1a/0x44 [ 4.600793][ T102] ? warn_bogus_irq_restore+0x1d/0x20 [ 4.600793][ T102] __warn.cold+0x35/0x44 [ 4.600793][ T102] ? wake_up_klogd.part.0+0x8e/0xd0 [ 4.600793][ T102] ? warn_bogus_irq_restore+0x1d/0x20 [ 4.600793][ T102] report_bug+0x1bd/0x210 [ 4.600793][ T102] handle_bug+0x3c/0x60 [ 4.600793][ T102] exc_invalid_op+0x14/0x40 [ 4.600793][ T102] asm_exc_invalid_op+0x12/0x20 [ 4.600793][ T102] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 4.600793][ T102] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 11 6a ad 04 00 74 01 c3 48 c7 c7 20 79 6b 89 c6 05 00 6a ad 04 01 e8 35 c2 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 4.600793][ T102] RSP: 0000:ffffc90000997c58 EFLAGS: 00010282 [ 4.600793][ T102] RAX: 0000000000000000 RBX: ffffffff8be25ee0 RCX: 0000000000000000 [ 4.600793][ T102] RDX: ffff888012ab0140 RSI: ffffffff815b4435 RDI: fffff52000132f7d [ 4.600793][ T102] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 4.600793][ T102] R10: ffffffff815ad19e R11: 0000000000000000 R12: 0000000000000003 [ 4.600793][ T102] R13: fffffbfff17c4bdc R14: 0000000000000001 R15: ffff88802ca36000 [ 4.600793][ T102] ? wake_up_klogd.part.0+0x8e/0xd0 [ 4.600793][ T102] ? vprintk_func+0x95/0x1e0 [ 4.600793][ T102] ? warn_bogus_irq_restore+0x1d/0x20 [ 4.600793][ T102] kvm_wait+0xc9/0xe0 [ 4.600793][ T102] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 4.600793][ T102] ? pv_hash+0x100/0x100 [ 4.600793][ T102] ? lock_release+0x720/0x720 [ 4.600793][ T102] do_raw_spin_lock+0x200/0x2b0 [ 4.600793][ T102] ? rwlock_bug.part.0+0x90/0x90 [ 4.600793][ T102] do_exit+0x1d05/0x2a60 [ 4.600793][ T102] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 4.600793][ T102] ? mm_update_next_owner+0x7a0/0x7a0 [ 4.600793][ T102] ? kfree+0x1d7/0x2b0 [ 4.600793][ T102] ? lockdep_hardirqs_on+0x79/0x100 [ 4.600793][ T102] call_usermodehelper_exec_async+0x413/0x580 [ 4.600793][ T102] ? umh_complete+0x90/0x90 [ 4.600793][ T102] ret_from_fork+0x1f/0x30 [ 4.600793][ T102] Dumping ftrace buffer: [ 4.600793][ T102] (ftrace buffer empty) [ 4.600793][ T102] Rebooting in 1 seconds.. [ 4.600793][ T102] ACPI MEMORY or I/O RESET_REG.