[ 0.000000][ T0] Linux version 5.12.0-rc3-next-20210319-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** This system shows unhashed kernel memory addresses ** [ 0.000000][ T0] ** via the console, logs, and other interfaces. This ** [ 0.000000][ T0] ** might reduce the security of your system. ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** If you see this message and you are not debugging ** [ 0.000000][ T0] ** the kernel, report this immediately to your system ** [ 0.000000][ T0] ** administrator! ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f3da001, primary cpu clock [ 0.000010][ T0] kvm-clock: using sched offset of 6139021877 cycles [ 0.001379][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.007967][ T0] tsc: Detected 2299.998 MHz processor [ 0.014204][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.015556][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.018409][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.026784][ T0] found SMP MP-table at [mem 0x000f26f0-0x000f26ff] [ 0.028857][ T0] Using GB pages for direct mapping [ 0.032051][ T0] ACPI: Early table checksum verification disabled [ 0.033408][ T0] ACPI: RSDP 0x00000000000F2470 000014 (v00 Google) [ 0.036387][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.040294][ T0] ACPI: FACP 0x00000000BFFFF340 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.043644][ T0] ACPI: DSDT 0x00000000BFFFDA80 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.045825][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.048046][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.049876][ T0] ACPI: SRAT 0x00000000BFFFFE70 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.053455][ T0] ACPI: APIC 0x00000000BFFFFDC0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.057190][ T0] ACPI: SSDT 0x00000000BFFFF440 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.059430][ T0] ACPI: WAET 0x00000000BFFFFE40 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.063388][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.066071][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.068418][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.071012][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.073159][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.075096][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.079268][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.081763][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.084709][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.087905][ T0] NODE_DATA(0) allocated [mem 0x13fffb000-0x13fffffff] [ 0.091039][ T0] NODE_DATA(1) allocated [mem 0x23fff8000-0x23fffcfff] [ 0.133118][ T0] Zone ranges: [ 0.134906][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.137343][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.139559][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.141191][ T0] Device empty [ 0.143162][ T0] Movable zone start for each node [ 0.144653][ T0] Early memory node ranges [ 0.146097][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.148574][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.150037][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.153190][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.156160][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.160073][ T0] DMA zone: 28770 pages in unavailable ranges [ 0.185219][ T0] DMA32 zone: 3 pages in unavailable ranges [ 0.195176][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.555600][ T0] kasan: KernelAddressSanitizer initialized [ 0.558260][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.560318][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.562828][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.566223][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.568523][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.570218][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.572640][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.575432][ T0] Using ACPI (MADT) for SMP configuration information [ 0.577163][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.579921][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.583212][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.585772][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.588023][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.590964][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.593777][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.597053][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.600330][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.601887][ T0] Booting paravirtualized kernel on KVM [ 0.603977][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.668823][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.673300][ T0] percpu: Embedded 64 pages/cpu s223816 r8192 d30136 u1048576 [ 0.676642][ T0] kvm-guest: stealtime: cpu 0, msr b9c1f440 [ 0.678706][ T0] kvm-guest: PV spinlocks enabled [ 0.680921][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.683309][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064262 [ 0.685212][ T0] Policy zone: Normal [ 0.686649][ 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 BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 [ 0.716817][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.645455][ T0] Memory: 6849736K/8388204K available (135201K kernel code, 33417K rwdata, 38488K rodata, 3952K init, 16708K bss, 1538212K reserved, 0K cma-reserved) [ 1.653966][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.659456][ T0] Running RCU self tests [ 1.661836][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.664123][ T0] rcu: RCU lockdep checking is enabled. [ 1.665749][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.668462][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.670762][ T0] rcu: RCU debug extended QS entry/exit. [ 1.673240][ T0] All grace periods are expedited (rcu_expedited). [ 1.675216][ T0] Trampoline variant of Tasks RCU enabled. [ 1.677121][ T0] Tracing variant of Tasks RCU enabled. [ 1.678616][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.680855][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.705680][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.711348][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823bc00000-0xffff88823be00000 [ 1.715570][ T0] random: crng done (trusting CPU's manufacturer) [ 1.718461][ T0] Console: colour VGA+ 80x25 [ 1.720397][ T0] printk: console [ttyS0] enabled [ 1.720397][ T0] printk: console [ttyS0] enabled [ 1.724426][ T0] printk: bootconsole [earlyser0] disabled [ 1.724426][ T0] printk: bootconsole [earlyser0] disabled [ 1.729164][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.732412][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.734661][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.736907][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.738706][ T0] ... CLASSHASH_SIZE: 4096 [ 1.742039][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.743588][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.745711][ T0] ... CHAINHASH_SIZE: 32768 [ 1.747085][ T0] memory used by lock dependency info: 6365 kB [ 1.749490][ T0] memory used for stack traces: 4224 kB [ 1.751712][ T0] per task-struct memory footprint: 1920 bytes [ 1.754430][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.759015][ T0] ACPI: Core revision 20210105 [ 1.761240][ T0] APIC: Switch to symmetric I/O mode setup [ 1.769595][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.773185][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212733415c7, max_idle_ns: 440795236380 ns [ 1.776555][ T0] Calibrating delay loop (skipped) preset value.. 4599.99 BogoMIPS (lpj=22999980) [ 1.778959][ T0] pid_max: default: 32768 minimum: 301 [ 1.780897][ T0] LSM: Security Framework initializing [ 1.787169][ T0] landlock: Up and running. [ 1.788019][ T0] Yama: becoming mindful. [ 1.789592][ T0] TOMOYO Linux initialized [ 1.790717][ T0] AppArmor: AppArmor initialized [ 1.792796][ T0] LSM support for eBPF active [ 1.802892][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.809735][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.812537][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.815692][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.819850][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.822144][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.825064][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.826630][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.826685][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.832909][ T0] MDS: Mitigation: Clear CPU buffers [ 1.837267][ T0] Freeing SMP alternatives memory: 104K [ 1.960737][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.966542][ T1] Running RCU-tasks wait API self tests [ 2.086879][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 2.090986][ T1] rcu: Hierarchical SRCU implementation. [ 2.096957][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.101425][ T1] smp: Bringing up secondary CPUs ... [ 2.105678][ T1] x86: Booting SMP configuration: [ 2.106775][ T1] .... node #0, CPUs: #1 [ 0.075525][ T0] kvm-clock: cpu 1, msr f3da041, secondary cpu clock [ 2.112757][ T17] kvm-guest: stealtime: cpu 1, msr b9d1f440 [ 2.112757][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 2.116791][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.118486][ T1] smpboot: Max logical packages: 1 [ 2.120008][ T1] smpboot: Total of 2 processors activated (9199.99 BogoMIPS) [ 2.126643][ T12] Callback from call_rcu_tasks_trace() invoked. [ 2.131444][ T1] devtmpfs: initialized [ 2.131444][ T1] x86/mm: Memory block size: 128MB [ 2.169942][ T26] wait_for_initramfs() called before rootfs_initcalls [ 2.177050][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.176833][ T26] kworker/u4:0 (26) used greatest stack depth: 27304 bytes left [ 2.180937][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.191369][ T1] PM: RTC time: 13:32:18, date: 2021-03-20 [ 2.197836][ T1] NET: Registered protocol family 16 [ 2.202963][ T1] audit: initializing netlink subsys (disabled) [ 2.207420][ T37] audit: type=2000 audit(1616247138.668:1): state=initialized audit_enabled=0 res=1 [ 2.217002][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.217002][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.224604][ T1] cpuidle: using governor menu [ 2.224604][ T1] NET: Registered protocol family 42 [ 2.230770][ T1] ACPI: bus type PCI registered [ 2.237933][ T1] PCI: Using configuration type 1 for base access [ 2.284213][ T69] kworker/u4:2 (69) used greatest stack depth: 27296 bytes left [ 2.286683][ T71] ------------[ cut here ]------------ [ 2.288587][ T71] raw_local_irq_restore() called with IRQs enabled [ 2.292043][ T71] WARNING: CPU: 1 PID: 71 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 [ 2.297971][ T71] Modules linked in: [ 2.299673][ T71] CPU: 1 PID: 71 Comm: kworker/u4:2 Not tainted 5.12.0-rc3-next-20210319-syzkaller #0 [ 2.303649][ T71] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2.307159][ T71] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 2.307159][ T71] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 51 9e a6 04 00 74 01 c3 48 c7 c7 a0 97 6b 89 c6 05 40 9e a6 04 01 e8 7e c3 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 2.316561][ T71] RSP: 0000:ffffc9000101fc58 EFLAGS: 00010282 [ 2.318615][ T71] RAX: 0000000000000000 RBX: ffffffff8be296c0 RCX: 0000000000000000 [ 2.321448][ T71] RDX: ffff88801206b900 RSI: ffffffff815c2c75 RDI: fffff52000203f7d [ 2.324694][ T71] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 2.324694][ T71] R10: ffffffff815bc41e R11: 0000000000000000 R12: 0000000000000003 [ 2.324694][ T71] R13: fffffbfff17c52d8 R14: 0000000000000001 R15: ffff8880b9d35fc0 [ 2.326564][ T71] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 2.330103][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.340349][ T71] CR2: 0000000000000000 CR3: 000000000bc8e000 CR4: 00000000001506e0 [ 2.343896][ T71] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2.345845][ T71] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2.345845][ T71] Call Trace: [ 2.345845][ T71] kvm_wait+0xc9/0xe0 [ 2.345845][ T71] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 2.346596][ T71] ? pv_hash+0x100/0x100 [ 2.348316][ T71] ? lock_release+0x720/0x720 [ 2.350304][ T71] do_raw_spin_lock+0x200/0x2b0 [ 2.352121][ T71] ? rwlock_bug.part.0+0x90/0x90 [ 2.353924][ T71] do_exit+0x1d05/0x2a60 [ 2.356577][ T71] ? mm_update_next_owner+0x7a0/0x7a0 [ 2.359434][ T71] ? kfree+0xe5/0x7f0 [ 2.360886][ T71] ? umh_complete+0x7b/0x90 [ 2.362393][ T71] ? putname+0xe1/0x120 [ 2.364302][ T71] call_usermodehelper_exec_async+0x418/0x580 [ 2.366567][ T71] ? umh_complete+0x90/0x90 [ 2.368223][ T71] ret_from_fork+0x1f/0x30 [ 2.376669][ T71] Kernel panic - not syncing: panic_on_warn set ... [ 2.376669][ T71] CPU: 1 PID: 71 Comm: kworker/u4:2 Not tainted 5.12.0-rc3-next-20210319-syzkaller #0 [ 2.376669][ T71] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2.376669][ T71] Call Trace: [ 2.376669][ T71] dump_stack+0x141/0x1d7 [ 2.376669][ T71] panic+0x306/0x73d [ 2.376669][ T71] ? __warn_printk+0xf3/0xf3 [ 2.376669][ T71] ? __warn.cold+0x1a/0x44 [ 2.376669][ T71] ? warn_bogus_irq_restore+0x1d/0x20 [ 2.376669][ T71] __warn.cold+0x35/0x44 [ 2.376669][ T71] ? wake_up_klogd.part.0+0x8e/0xd0 [ 2.376669][ T71] ? warn_bogus_irq_restore+0x1d/0x20 [ 2.376669][ T71] report_bug+0x1bd/0x210 [ 2.406620][ T71] handle_bug+0x3c/0x60 [ 2.406620][ T71] exc_invalid_op+0x14/0x40 [ 2.406620][ T71] asm_exc_invalid_op+0x12/0x20 [ 2.406620][ T71] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 2.406620][ T71] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 51 9e a6 04 00 74 01 c3 48 c7 c7 a0 97 6b 89 c6 05 40 9e a6 04 01 e8 7e c3 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 2.406620][ T71] RSP: 0000:ffffc9000101fc58 EFLAGS: 00010282 [ 2.406620][ T71] RAX: 0000000000000000 RBX: ffffffff8be296c0 RCX: 0000000000000000 [ 2.406620][ T71] RDX: ffff88801206b900 RSI: ffffffff815c2c75 RDI: fffff52000203f7d [ 2.406620][ T71] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 2.406620][ T71] R10: ffffffff815bc41e R11: 0000000000000000 R12: 0000000000000003 [ 2.436610][ T71] R13: fffffbfff17c52d8 R14: 0000000000000001 R15: ffff8880b9d35fc0 [ 2.436610][ T71] ? wake_up_klogd.part.0+0x8e/0xd0 [ 2.441257][ T71] ? vprintk_func+0x95/0x260 [ 2.443186][ T71] ? warn_bogus_irq_restore+0x1d/0x20 [ 2.443186][ T71] kvm_wait+0xc9/0xe0 [ 2.443186][ T71] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 2.443186][ T71] ? pv_hash+0x100/0x100 [ 2.443186][ T71] ? lock_release+0x720/0x720 [ 2.443186][ T71] do_raw_spin_lock+0x200/0x2b0 [ 2.443186][ T71] ? rwlock_bug.part.0+0x90/0x90 [ 2.443186][ T71] do_exit+0x1d05/0x2a60 [ 2.443186][ T71] ? mm_update_next_owner+0x7a0/0x7a0 [ 2.443186][ T71] ? kfree+0xe5/0x7f0 [ 2.443186][ T71] ? umh_complete+0x7b/0x90 [ 2.443186][ T71] ? putname+0xe1/0x120 [ 2.443186][ T71] call_usermodehelper_exec_async+0x418/0x580 [ 2.466664][ T71] ? umh_complete+0x90/0x90 [ 2.466664][ T71] ret_from_fork+0x1f/0x30 [ 2.466664][ T71] Rebooting in 86400 seconds..