[ 0.000000] Linux version 3.10.0-rc1-00058-g57b8c53 (kbuild@xian) (gcc version 4.8.1 (Debian 4.8.1-3) ) #16 SMP Thu Jun 20 12:53:29 CST 2013 [ 0.000000] Command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x04-0620/kvm:queue/.vmlinuz-57b8c53a06365253d83d4fae03353107dd059884-20130620125413-1-inn branch=kvm/queue BOOT_IMAGE=/kernel/x86_64-randconfig-x04-0620/57b8c53a06365253d83d4fae03353107dd059884/vmlinuz-3.10.0-rc1-00058-g57b8c53 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000000fffdfff] usable [ 0.000000] BIOS-e820: [mem 0x000000000fffe000-0x000000000fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] debug: ignoring loglevel setting. [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] No AGP bridge found [ 0.000000] e820: last_pfn = 0xfffe max_arch_pfn = 0x400000000 [ 0.000000] MTRR default type: write-back [ 0.000000] MTRR fixed ranges enabled: [ 0.000000] 00000-9FFFF write-back [ 0.000000] A0000-BFFFF uncachable [ 0.000000] C0000-FFFFF write-protect [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 0080000000 mask FF80000000 uncachable [ 0.000000] 1 disabled [ 0.000000] 2 disabled [ 0.000000] 3 disabled [ 0.000000] 4 disabled [ 0.000000] 5 disabled [ 0.000000] 6 disabled [ 0.000000] 7 disabled [ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106 [ 0.000000] Scan for SMP in [mem 0x00000000-0x000003ff] [ 0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff] [ 0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff] [ 0.000000] found SMP MP-table at [mem 0x000fdab0-0x000fdabf] mapped at [ffff8800000fdab0] [ 0.000000] mpc: fdac0-fdbe4 [ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] BRK [0x037ba000, 0x037bafff] PGTABLE [ 0.000000] BRK [0x037bb000, 0x037bbfff] PGTABLE [ 0.000000] BRK [0x037bc000, 0x037bcfff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x0e600000-0x0e7fffff] [ 0.000000] [mem 0x0e600000-0x0e7fffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x0c000000-0x0e5fffff] [ 0.000000] [mem 0x0c000000-0x0e5fffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x00100000-0x0bffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x0bffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x0e800000-0x0fffdfff] [ 0.000000] [mem 0x0e800000-0x0fdfffff] page 2M [ 0.000000] [mem 0x0fe00000-0x0fffdfff] page 4k [ 0.000000] BRK [0x037bd000, 0x037bdfff] PGTABLE [ 0.000000] log_buf_len: 8388608 [ 0.000000] early log buf free: 127380(97%) [ 0.000000] RAMDISK: [mem 0x0e8d6000-0x0ffeffff] [ 0.000000] ACPI: RSDP 00000000000fd920 00014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 000000000fffe450 00034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 000000000fffff80 00074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 000000000fffe490 011A9 (v01 BXPC BXDSDT 00000001 INTL 20100528) [ 0.000000] ACPI: FACS 000000000fffff40 00040 [ 0.000000] ACPI: SSDT 000000000ffff7a0 00796 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 000000000ffff680 00080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: HPET 000000000ffff640 00038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffffffff5ba000 ( fee00000) [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000000fffdfff] [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x0fffdfff] [ 0.000000] NODE_DATA [mem 0x0e0af000-0x0e0d5fff] [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:e06f001, boot clock [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00001000-0x0009efff] [ 0.000000] node 0: [mem 0x00100000-0x0fffdfff] [ 0.000000] On node 0 totalpages: 65436 [ 0.000000] DMA zone: 64 pages used for memmap [ 0.000000] DMA zone: 21 pages reserved [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 960 pages used for memmap [ 0.000000] DMA32 zone: 61438 pages, LIFO batch:15 [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffffffff5ba000 ( fee00000) [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 0, APIC INT 02 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 0, APIC INT 05 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01 [ 0.000000] ACPI: IRQ2 used by override. [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03 [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04 [ 0.000000] ACPI: IRQ5 used by override. [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06 [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07 [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08 [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] ACPI: IRQ10 used by override. [ 0.000000] ACPI: IRQ11 used by override. [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e [ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] mapped IOAPIC to ffffffffff5b9000 (fec00000) [ 0.000000] nr_irqs_gsi: 40 [ 0.000000] e820: [mem 0x10000000-0xfeffbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] setup_percpu: NR_CPUS:4096 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 474 pages/cpu @ffff88000da00000 s1919104 r0 d22400 u2097152 [ 0.000000] pcpu-alloc: s1919104 r0 d22400 u2097152 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] kvm-clock: cpu 0, msr 0:e06f001, primary cpu clock [ 0.000000] KVM setup async PF for cpu 0 [ 0.000000] kvm-stealtime: cpu 0, msr da0df00 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 64391 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x04-0620/kvm:queue/.vmlinuz-57b8c53a06365253d83d4fae03353107dd059884-20130620125413-1-inn branch=kvm/queue BOOT_IMAGE=/kernel/x86_64-randconfig-x04-0620/57b8c53a06365253d83d4fae03353107dd059884/vmlinuz-3.10.0-rc1-00058-g57b8c53 [ 0.000000] PID hash table entries: 1024 (order: 1, 8192 bytes) [ 0.000000] Checking aperture... [ 0.000000] No AGP bridge found [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] Memory: 180084k/262136k available (11274k kernel code, 392k absent, 81660k reserved, 15389k data, 3476k init) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] [ 0.000000] [ 0.000000] [ 0.000000] NR_IRQS:262400 nr_irqs:512 16 [ 0.000000] console [ttyS0] enabled [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768 [ 0.000000] ... CHAINHASH_SIZE: 16384 [ 0.000000] memory used by lock dependency info: 6367 kB [ 0.000000] per task-struct memory footprint: 2688 bytes [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Detected 2693.546 MHz processor [ 0.006666] Calibrating delay loop (skipped) preset value.. 5389.55 BogoMIPS (lpj=8978486) [ 0.007047] pid_max: default: 32768 minimum: 301 [ 0.010073] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes) [ 0.011071] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.011996] Mount-cache hash table entries: 256 [ 0.013560] mce: CPU supports 10 MCE banks [ 0.014142] numa_add_cpu cpu 0 node 0: mask now 0 [ 0.014752] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.014752] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.014752] tlb_flushall_shift: 6 [ 0.016646] Freeing SMP alternatives: 16k freed [ 0.022694] ACPI: Core revision 20130328 [ 0.030723] ACPI: All ACPI Tables successfully acquired [ 0.031485] ftrace: allocating 27945 entries in 110 pages [ 0.043779] Getting VERSION: 50014 [ 0.046694] Getting VERSION: 50014 [ 0.047184] Getting ID: 0 [ 0.047566] Getting ID: ff000000 [ 0.048041] Getting LVT0: 8700 [ 0.048490] Getting LVT1: 8400 [ 0.049015] enabled ExtINT on CPU#0 [ 0.050859] ENABLING IO-APIC IRQs [ 0.051330] init IO_APIC IRQs [ 0.051768] apic 0 pin 0 not connected [ 0.052311] IOAPIC[0]: Set routing entry (0-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:1) [ 0.053374] IOAPIC[0]: Set routing entry (0-2 -> 0x30 -> IRQ 0 Mode:0 Active:0 Dest:1) [ 0.054406] IOAPIC[0]: Set routing entry (0-3 -> 0x33 -> IRQ 3 Mode:0 Active:0 Dest:1) [ 0.055434] IOAPIC[0]: Set routing entry (0-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 Dest:1) [ 0.056472] IOAPIC[0]: Set routing entry (0-5 -> 0x35 -> IRQ 5 Mode:1 Active:0 Dest:1) [ 0.056702] IOAPIC[0]: Set routing entry (0-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 Dest:1) [ 0.057720] IOAPIC[0]: Set routing entry (0-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 Dest:1) [ 0.058731] IOAPIC[0]: Set routing entry (0-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 Dest:1) [ 0.060035] IOAPIC[0]: Set routing entry (0-9 -> 0x39 -> IRQ 9 Mode:1 Active:0 Dest:1) [ 0.061049] IOAPIC[0]: Set routing entry (0-10 -> 0x3a -> IRQ 10 Mode:1 Active:0 Dest:1) [ 0.062395] IOAPIC[0]: Set routing entry (0-11 -> 0x3b -> IRQ 11 Mode:1 Active:0 Dest:1) [ 0.063368] IOAPIC[0]: Set routing entry (0-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 Dest:1) [ 0.064562] IOAPIC[0]: Set routing entry (0-13 -> 0x3d -> IRQ 13 Mode:0 Active:0 Dest:1) [ 0.066703] IOAPIC[0]: Set routing entry (0-14 -> 0x3e -> IRQ 14 Mode:0 Active:0 Dest:1) [ 0.067837] IOAPIC[0]: Set routing entry (0-15 -> 0x3f -> IRQ 15 Mode:0 Active:0 Dest:1) [ 0.069154] apic 0 pin 16 not connected [ 0.069697] apic 0 pin 17 not connected [ 0.070010] apic 0 pin 18 not connected [ 0.070551] apic 0 pin 19 not connected [ 0.071090] apic 0 pin 20 not connected [ 0.071632] apic 0 pin 21 not connected [ 0.072127] apic 0 pin 22 not connected [ 0.072631] apic 0 pin 23 not connected [ 0.073512] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.074712] smpboot: CPU0: Intel Common KVM processor (fam: 0f, model: 06, stepping: 01) [ 0.076676] Using local APIC timer interrupts. [ 0.076676] calibrating APIC timer ... [ 0.079999] ... lapic delta = 9165995 [ 0.079999] ... PM-Timer delta = 524958 [ 0.079999] APIC calibration not consistent with PM-Timer: 146ms instead of 100ms [ 0.079999] APIC delta adjusted to PM-Timer: 6250032 (9165995) [ 0.079999] TSC delta adjusted to PM-Timer: 269345460 (395009007) [ 0.079999] ..... delta 6250032 [ 0.079999] ..... mult: 268436857 [ 0.079999] ..... calibration result: 3333350 [ 0.079999] ..... CPU clock speed is 2693.2413 MHz. [ 0.079999] ..... host bus clock speed is 1000.0350 MHz. [ 0.080113] Performance Events: unsupported Netburst CPU model 6 no PMU driver, software events only. [ 0.084242] ftrace: Allocated trace_printk buffers [ 0.090305] Testing tracer nop: PASSED [ 0.094423] SMP alternatives: lockdep: fixing up alternatives [ 0.095601] smpboot: Booting Node 0, Processors #1 OK [ 0.006666] kvm-clock: cpu 1, msr 0:e06f041, secondary cpu clock [ 0.006666] masked ExtINT on CPU#1 [ 0.006666] numa_add_cpu cpu 1 node 0: mask now 0-1 [ 0.126681] Brought up 2 CPUs [ 0.127075] ---------------- [ 0.127446] | NMI testsuite: [ 0.127806] -------------------- [ 0.128208] remote IPI: [ 0.126451] KVM setup async PF for cpu 1 [ 0.126451] kvm-stealtime: cpu 1, msr dc0df00 ok | [ 0.146863] local IPI: ok | [ 0.166688] -------------------- [ 0.167109] Good, all 2 testcases passed! | [ 0.167642] --------------------------------- [ 0.168187] smpboot: Total of 2 processors activated (10778.10 BogoMIPS) [ 0.169655] CPU0 attaching sched-domain: [ 0.170021] domain 0: span 0-1 level CPU [ 0.170546] groups: 0 1 [ 0.170952] CPU1 attaching sched-domain: [ 0.171437] domain 0: span 0-1 level CPU [ 0.171962] groups: 1 0 [ 0.206714] Testing tracer function: PASSED [ 0.393368] Testing dynamic ftrace: PASSED [ 0.703516] Testing dynamic ftrace ops #1: (1 0 1 1 0) (1 1 2 1 0) (2 1 3 1 10) (2 2 4 1 125) PASSED [ 0.958296] Testing dynamic ftrace ops #2: (1 0 1 11 0) (1 1 2 120 0) (2 1 3 2 11) (2 2 4 110 119) PASSED [ 1.314151] Testing ftrace recursion: PASSED [ 1.337410] Testing ftrace recursion safe: PASSED [ 1.360768] Testing ftrace regs: PASSED [ 1.448521] Testing tracer wakeup: ret = 0 [ 1.656749] ftrace-test (16) used greatest stack depth: 6216 bytes left [ 1.687783] PASSED [ 1.717904] Testing tracer wakeup_rt: ret = 0 [ 1.960950] PASSED [ 1.990036] Testing tracer branch: [ 2.123408] ------------[ cut here ]------------ [ 2.124080] WARNING: at /c/kernel-tests/src/tip/kernel/lockdep.c:3539 check_flags.part.41+0xc0/0x200() [ 2.125245] DEBUG_LOCKS_WARN_ON(!current->hardirqs_enabled) [ 2.125984] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.10.0-rc1-00058-g57b8c53 #16 [ 2.126666] 0000000000000009 ffff88000dc03cf8 ffffffff81aef1b9 ffff88000dc03d30 [ 2.126666] ffffffff810c0113 ffff88000d2e1fd8 0000000000000000 0000000000000000 [ 2.126666] 0000000000000002 0000000000000000 ffff88000dc03d90 ffffffff810c019c [ 2.126666] Call Trace: [ 2.126666] [] dump_stack+0x19/0x1b [ 2.126666] [] warn_slowpath_common+0x73/0x90 [ 2.126666] [] warn_slowpath_fmt+0x4c/0x50 [ 2.126666] [] check_flags.part.41+0xc0/0x200 [ 2.126666] [] lock_acquire+0x119/0x240 [ 2.126666] [] ? ring_buffer_unlock_commit+0x33/0x290 [ 2.126666] [] ? ftrace_raw_output_itimer_expire+0x80/0x80 [ 2.126666] [] call_timer_fn+0x83/0x530 [ 2.126666] [] ? call_timer_fn+0x5/0x530 [ 2.126666] [] run_timer_softirq+0x314/0x520 [ 2.126666] [] ? trace_hardirqs_on+0xd/0x10 [ 2.126666] [] ? ftrace_raw_output_itimer_expire+0x80/0x80 [ 2.126666] [] __do_softirq+0x1f8/0x6f0 [ 2.126666] [] irq_exit+0xd5/0xe0 [ 2.126666] [] smp_apic_timer_interrupt+0x86/0xc0 [ 2.126666] [] apic_timer_interrupt+0x6f/0x80 [ 2.126666] [] ? ftrace_likely_update+0x11e/0x250 [ 2.126666] [] ? native_safe_halt+0x6/0x10 [ 2.126666] [] default_idle+0x124/0x440 [ 2.126666] [] arch_cpu_idle+0x36/0x40 [ 2.126666] [] cpu_startup_entry+0x436/0x7e0 [ 2.126666] [] ? clockevents_register_device+0x11c/0x1d0 [ 2.126666] [] start_secondary+0x2b8/0x2c0 [ 2.126666] ---[ end trace 7bbf806df5469d34 ]--- [ 2.126666] possible reason: unannotated irqs-on. [ 2.126666] irq event stamp: 16541 [ 2.126666] hardirqs last enabled at (16540): [] _raw_spin_unlock_irq+0x2e/0x80 [ 2.126666] hardirqs last disabled at (16541): [] ftrace_likely_update+0x87/0x250 [ 2.126666] softirqs last enabled at (16532): [] irq_enter+0x90/0xa0 [ 2.126666] softirqs last disabled at (16533): [] irq_exit+0xd5/0xe0 [ 2.183568] BUG: unable to handle kernel NULL pointer dereference at (null) [ 2.186666] IP: [] find_next_bit+0x141/0x190 [ 2.186666] PGD 0 [ 2.186666] Oops: 0000 [#1] SMP [ 2.186666] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 3.10.0-rc1-00058-g57b8c53 #16 [ 2.186666] task: ffff88000d0d8000 ti: ffff88000d140000 task.ti: ffff88000d140000 [ 2.186666] RIP: 0010:[] [] find_next_bit+0x141/0x190 [ 2.186666] RSP: 0000:ffff88000d141de0 EFLAGS: 00010046 [ 2.186666] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.186666] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 [ 2.186666] RBP: ffff88000d141de0 R08: 0000000000000000 R09: 0000000000000000 [ 2.186666] R10: 0000000000000000 R11: 00012f2478ebe8ab R12: ffffffff82478830 [ 2.186666] R13: 00000000ffffffff R14: ffffffff82a08020 R15: 0000000000000000 [ 2.186666] FS: 0000000000000000(0000) GS:ffff88000dc00000(0000) knlGS:0000000000000000 [ 2.186666] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 2.186666] CR2: 0000000000000000 CR3: 0000000002409000 CR4: 00000000000006e0 [ 2.186666] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2.186666] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 2.186666] Stack: [ 2.186666] ffff88000d141e10 ffffffff8118900c ffff88000d15b200 ffffffff83705860 [ 2.186666] 0000000000000000 ffffffff83705860 ffff88000d141e60 ffffffff8118e48f [ 2.186666] ffff88000d141e70 ffff88000d141e48 0000000000000282 ffffffff83705860 [ 2.186666] Call Trace: [ 2.186666] [] ring_buffer_entries+0x6c/0xb0 [ 2.186666] [] trace_test_buffer+0x7f/0x250 [ 2.186666] [] trace_selftest_startup_branch+0x47/0xc0 [ 2.186666] [] register_tracer+0x1f7/0x300 [ 2.186666] [] ? init_mmio_trace+0x12/0x12 [ 2.186666] [] init_branch_tracer+0x33/0x35 [ 2.186666] [] do_one_initcall+0x87/0x191 [ 2.186666] [] kernel_init_freeable+0x10d/0x1c5 [ 2.186666] [] ? do_early_param+0xc1/0xc1 [ 2.186666] [] ? rest_init+0x180/0x180 [ 2.186666] [] kernel_init+0xe/0x210 [ 2.186666] [] ret_from_fork+0x7c/0xb0 [ 2.186666] [] ? rest_init+0x180/0x180 [ 2.186666] Code: ff ff ff 0f 1f 80 00 00 00 00 48 85 f6 0f 94 c1 0f b6 c1 48 83 c0 02 48 83 04 c5 68 66 73 82 01 84 c9 4c 89 c0 0f 85 78 ff ff ff <48> 8b 02 b9 40 00 00 00 48 c7 c2 ff ff ff ff 29 f1 48 d3 ea 48 [ 2.186666] RIP [] find_next_bit+0x141/0x190 [ 2.186666] RSP [ 2.186666] CR2: 0000000000000000 [ 2.186666] ---[ end trace 7bbf806df5469d35 ]--- [ 2.186666] Kernel panic - not syncing: Fatal exception [ 2.186666] Rebooting in 10 seconds.. BUG: kernel boot crashed Elapsed time: 25