[ 14.960445] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 20.989098] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 21.361772] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.255937] random: sshd: uninitialized urandom read (32 bytes read, 103 bits of entropy available) [ 22.439037] random: sshd: uninitialized urandom read (32 bytes read, 108 bits of entropy available) Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. [ 27.835773] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available) executing program executing program [ 27.948381] ================================================================== [ 27.955778] BUG: KASAN: slab-out-of-bounds in sg_remove_request+0xf9/0x110 [ 27.962759] Read of size 8 at addr ffff8801d0b5c1c0 by task syzkaller311796/3320 [ 27.970254] [ 27.971852] CPU: 0 PID: 3320 Comm: syzkaller311796 Not tainted 4.4.113-g202e079 #1 [ 27.979525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.988845] 0000000000000000 b0fb4d412273cde8 ffff8800b47ff9f0 ffffffff81d0278d [ 27.996817] ffffea000742d700 ffff8801d0b5c1c0 0000000000000000 ffff8801d0b5c1c0 [ 28.004784] ffff8801d5158238 ffff8800b47ffa28 ffffffff814fd053 ffff8801d0b5c1c0 [ 28.012746] Call Trace: [ 28.015308] [] dump_stack+0xc1/0x124 [ 28.020643] [] print_address_description+0x73/0x260 [ 28.027278] [] kasan_report+0x285/0x370 [ 28.032872] [] ? sg_remove_request+0xf9/0x110 [ 28.038993] [] __asan_report_load8_noabort+0x14/0x20 [ 28.045726] [] sg_remove_request+0xf9/0x110 [ 28.051682] [] sg_finish_rem_req+0x295/0x340 [ 28.057707] [] sg_read+0xa1b/0x1490 [ 28.062950] [] ? __check_object_size+0x154/0x35b [ 28.069342] [] ? sg_proc_seq_show_debug+0xda0/0xda0 [ 28.075984] [] ? fsnotify+0xee0/0xee0 [ 28.081407] [] ? avc_policy_seqno+0x9/0x20 [ 28.087262] [] do_loop_readv_writev+0x141/0x1e0 [ 28.093548] [] ? security_file_permission+0x89/0x1e0 [ 28.100267] [] ? sg_proc_seq_show_debug+0xda0/0xda0 [ 28.106903] [] ? sg_proc_seq_show_debug+0xda0/0xda0 [ 28.113881] [] do_readv_writev+0x5dd/0x6e0 [ 28.119732] [] ? vfs_write+0x530/0x530 [ 28.125238] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.131177] [] ? do_huge_pmd_anonymous_page+0x3dd/0xa10 [ 28.138157] [] ? __fget+0x20b/0x3b0 [ 28.143399] [] ? __fget+0x232/0x3b0 [ 28.148641] [] ? __fget+0x47/0x3b0 [ 28.153797] [] vfs_readv+0x78/0xb0 [ 28.158964] [] SyS_readv+0xd9/0x240 [ 28.164207] [] ? rw_copy_check_uvector+0x2b0/0x2b0 [ 28.170756] [] ? trace_hardirqs_on_thunk+0x17/0x19 [ 28.177305] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 28.183849] [ 28.185445] Allocated by task 0: [ 28.188775] (stack is not available) [ 28.192451] [ 28.194045] Freed by task 0: [ 28.197027] (stack is not available) [ 28.200707] [ 28.202305] The buggy address belongs to the object at ffff8801d0b5c180 [ 28.202305] which belongs to the cache fasync_cache of size 96 [ 28.214928] The buggy address is located 64 bytes inside of [ 28.214928] 96-byte region [ffff8801d0b5c180, ffff8801d0b5c1e0) [ 28.226594] The buggy address belongs to the page: [ 28.236402] kasan: CONFIG_KASAN_INLINE enabled [ 28.240831] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 28.253781] Dumping ftrace buffer: [ 28.257316] (ftrace buffer empty) [ 28.261024] Modules linked in: [ 28.264353] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.113-g202e079 #1 [ 28.271271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.280634] task: ffff8801da3a97c0 task.stack: ffff8801da3b8000 [ 28.286695] RIP: 0010:[] [] rb_insert_color+0x9f/0xcb0 [ 28.295332] RSP: 0018:ffff8801db307d18 EFLAGS: 00010003 [ 28.300778] RAX: 0a0508a8e82a0be9 RBX: ffffffff838a8de0 RCX: ffffffff838a8de0 [ 28.308047] RDX: 1ffffffff07151bd RSI: ffff8801db319710 RDI: ffff8801db319c40 [ 28.315320] RBP: ffff8801db307d60 R08: ffffffff857d3748 R09: 0000000000000001 [ 28.322598] R10: 0000000000000000 R11: 1ffff1003b660f62 R12: ffff8800b446fdf8 [ 28.329873] R13: 5028454741505f4e R14: ffff8801db319c40 R15: dffffc0000000000 [ 28.337151] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 28.345381] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.351265] CR2: 0000000020bbdff7 CR3: 00000001d5140000 CR4: 0000000000160670 [ 28.358543] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.365815] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.373085] Stack: [ 28.375240] ffffffff842bdb20 ffff8801da3aa030 0000000000000000 ffff8801db307d70 [ 28.383314] ffff8801db319c40 dffffc0000000000 0000000000000000 ffff8801db319710 [ 28.391360] ffff8800b446fe00 ffff8801db307db0 ffffffff81d20067 ffff8801db319c58 [ 28.399403] Call Trace: [ 28.401975] [ 28.404045] [] timerqueue_add+0x157/0x2a0 [ 28.410151] [] enqueue_hrtimer+0x168/0x450 [ 28.416045] [] __hrtimer_run_queues+0x732/0xfe0 [ 28.422377] [] ? hrtimer_fixup_init+0x70/0x70 [ 28.428536] [] ? hrtimer_interrupt+0x131/0x440 [ 28.434785] [] hrtimer_interrupt+0x1a6/0x440 [ 28.440856] [] local_apic_timer_interrupt+0x6a/0xb0 [ 28.447540] [] smp_apic_timer_interrupt+0x76/0xa0 [ 28.454047] [] apic_timer_interrupt+0xa0/0xb0 [ 28.460193] [ 28.462271] [] ? native_safe_halt+0x6/0x10 [ 28.468463] [] ? trace_hardirqs_on+0xd/0x10 [ 28.474447] [] default_idle+0x55/0x3c0 [ 28.479996] [] arch_cpu_idle+0xa/0x10 [ 28.485460] [] default_idle_call+0x48/0x70 [ 28.491356] [] cpu_startup_entry+0x5fd/0x8f0 [ 28.497424] [] ? call_cpuidle+0xe0/0xe0 [ 28.503064] [] ? clockevents_register_device+0x122/0x230 [ 28.510175] [] start_secondary+0x304/0x3e0 [ 28.516073] [] ? set_cpu_sibling_map+0x1080/0x1080 [ 28.522649] Code: 48 89 c2 48 c1 ea 03 42 80 3c 3a 00 0f 85 94 09 00 00 4c 8b 6b 08 4d 39 e5 0f 84 b0 01 00 00 4d 85 ed 74 1d 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 95 09 00 00 41 f6 45 00 01 0f 84 20 03 00 [ 28.550237] RIP [] rb_insert_color+0x9f/0xcb0 [ 28.556508] RSP [ 28.560131] ---[ end trace cad8b2dfdd9430ab ]--- [ 28.564882] Kernel panic - not syncing: Fatal exception in interrupt SeaBIOS (version 1.8.2-20171130_102032-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039ca26e input_len: 0x00000000014249d6 output: 0x0000000001000000 output_len: 0x0000000003ddaa40 run_size: 0x0000000005510000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.113-g202e079 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #1 SMP PREEMPT Sat Jan 27 03:04:11 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 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 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1989998408 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s134024 r8192 d29816 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935237 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] Memory: 6581444K/7863916K available (40414K kernel code, 6135K rwdata, 8812K rodata, 1852K init, 23616K bss, 1282472K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Kernel/User page tables isolation: enabled [ 0.000000] Running RCU self tests [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU lockdep checking is enabled. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2 [ 0.000000] NR_IRQS:4352 nr_irqs:440 16 [ 0.000000] console [ttyS0] enabled [ 0.000000] console [ttyS0] enabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] bootconsole [earlyser0] disabled [ 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: 32768 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.000000] ... CHAINHASH_SIZE: 32768 [ 0.000000] memory used by lock dependency info: 8159 kB [ 0.000000] per task-struct memory footprint: 1920 bytes [ 0.000000] tsc: Detected 2300.000 MHz processor [ 1.227012] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.228173] pid_max: default: 32768 minimum: 301 [ 1.228879] ACPI: Core revision 20150930 [ 1.298950] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.300184] Security Framework initialized [ 1.300751] SELinux: Initializing. [ 1.301398] AppArmor: AppArmor disabled by boot time parameter [ 1.302300] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.303238] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.306928] Initializing cgroup subsys io [ 1.307537] Initializing cgroup subsys freezer [ 1.308196] Initializing cgroup subsys hugetlb [ 1.308821] Initializing cgroup subsys debug [ 1.309582] CPU: Physical Processor ID: 0 [ 1.311475] mce: CPU supports 32 MCE banks [ 1.312277] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.313139] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.314043] Spectre V2 mitigation: Vulnerable: Minimal generic ASM retpoline [ 1.317344] Freeing SMP alternatives memory: 44K [ 1.326732] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.446350] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.447835] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.536592] x86: Booting SMP configuration: [ 1.537294] .... node #0, CPUs: #1 [ 1.538137] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.543007] x86: Booted up 1 node, 2 CPUs [ 1.543623] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.548315] devtmpfs: initialized [ 1.557785] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.559180] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.560804] xor: automatically using best checksumming function: [ 1.574082] kworker/u4:0 (21) used greatest stack depth: 28008 bytes left [ 1.656345] avx : 21029.600 MB/sec [ 1.657536] RTC time: 8:42:58, date: 01/27/18 [ 1.659780] NET: Registered protocol family 16 [ 1.660919] schedtune: init normalization constants... [ 1.661619] schedtune: no energy model data [ 1.662228] schedtune: disabled! [ 1.696615] cpuidle: using governor ladder [ 1.726386] cpuidle: using governor menu [ 1.727712] ACPI: bus type PCI registered [ 1.728285] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.731078] PCI: Using configuration type 1 for base access [ 1.735363] kworker/u4:0 (38) used greatest stack depth: 27688 bytes left [ 1.741538] kworker/u4:0 (42) used greatest stack depth: 27512 bytes left [ 1.902459] kworker/u4:1 (378) used greatest stack depth: 27144 bytes left [ 2.166302] raid6: sse2x1 gen() 4672 MB/s [ 2.336277] raid6: sse2x1 xor() 2397 MB/s [ 2.506269] raid6: sse2x2 gen() 7036 MB/s [ 2.676247] raid6: sse2x2 xor() 4042 MB/s [ 2.846234] raid6: sse2x4 gen() 8708 MB/s [ 3.016217] raid6: sse2x4 xor() 5244 MB/s [ 3.186202] raid6: avx2x1 gen() 9400 MB/s [ 3.356183] raid6: avx2x2 gen() 14682 MB/s [ 3.526167] raid6: avx2x4 gen() 19183 MB/s [ 3.526831] raid6: using algorithm avx2x4 gen() 19183 MB/s [ 3.527584] raid6: using avx2x2 recovery algorithm [ 3.528886] ACPI: Added _OSI(Module Device) [ 3.529502] ACPI: Added _OSI(Processor Device) [ 3.530132] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.530820] ACPI: Added _OSI(Processor Aggregator Device) [ 3.541366] ACPI: Executed 2 blocks of module-level executable AML code [ 3.616449] ACPI: Interpreter enabled [ 3.617404] ACPI: (supports S0 S3 S4 S5) [ 3.617951] ACPI: Using IOAPIC for interrupt routing [ 3.619060] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.825163] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.826228] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.827555] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.828540] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.854554] PCI host bridge to bus 0000:00 [ 3.855244] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.856307] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.857277] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.858345] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.859383] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.900258] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.987650] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 3.993893] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 3.999886] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.005712] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.009374] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.022546] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.026048] vgaarb: loaded [ 4.029246] SCSI subsystem initialized [ 4.044446] ACPI: bus type USB registered [ 4.046388] usbcore: registered new interface driver usbfs [ 4.048066] usbcore: registered new interface driver hub [ 4.049282] usbcore: registered new device driver usb [ 4.051449] pps_core: LinuxPPS API ver. 1 registered [ 4.052319] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.054188] PTP clock support registered [ 4.056984] Advanced Linux Sound Architecture Driver Initialized. [ 4.058593] PCI: Using ACPI for IRQ routing [ 4.082871] NetLabel: Initializing [ 4.083446] NetLabel: domain hash size = 128 [ 4.084073] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.085028] NetLabel: unlabeled traffic allowed by default [ 4.087590] amd_nb: Cannot enumerate AMD northbridges [ 4.089083] clocksource: Switched to clocksource kvm-clock [ 4.248850] pnp: PnP ACPI init [ 4.271134] pnp: PnP ACPI: found 7 devices [ 4.283994] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.285572] NET: Registered protocol family 2 [ 4.288742] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.290653] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.298015] TCP: Hash tables configured (established 65536 bind 65536) [ 4.299369] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.301761] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.304397] NET: Registered protocol family 1 [ 4.305187] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.306982] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.307870] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.310565] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.311830] hw unit of domain pp0-core 2^-0 Joules [ 4.312485] hw unit of domain package 2^-0 Joules [ 4.313128] hw unit of domain dram 2^-16 Joules [ 4.318712] Scanning for low memory corruption every 60 seconds [ 4.327425] audit: initializing netlink subsys (disabled) [ 4.328510] audit: type=2000 audit(1517042581.049:1): initialized [ 4.335924] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.466430] VFS: Disk quotas dquot_6.6.0 [ 4.468083] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.491820] fuse init (API version 7.23) [ 4.495427] 9p: Installing v9fs 9p2000 file system support [ 4.508277] async_tx: api initialized (async) [ 4.511931] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.513189] io scheduler noop registered [ 4.513758] io scheduler deadline registered [ 4.516157] io scheduler cfq registered (default) [ 4.524930] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.528486] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.529912] ACPI: Power Button [PWRF] [ 4.531645] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.532716] ACPI: Sleep Button [SLPF] [ 4.559461] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.560362] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.582815] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.583721] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.590872] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.613772] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.638677] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.663132] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.687438] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.695662] Non-volatile memory driver v1.3 [ 4.697497] Linux agpgart interface v0.103 [ 4.700432] [drm] Initialized drm 1.1.0 20060810 [ 4.788624] brd: module loaded [ 4.867414] loop: module loaded [ 4.882226] nbd: registered device at major 43 [ 5.037301] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.038592] drbd: built-in [ 5.039188] drbd: registered as block device major 147 [ 5.056789] scsi host0: Virtio SCSI HBA [ 5.104488] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.309784] tsc: Refined TSC clocksource calibration: 2299.798 MHz [ 5.310871] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2126765bdb5, max_idle_ns: 440795204572 ns [ 5.748259] st: Version 20101219, fixed bufsize 32768, s/g segs 256 [ 5.750502] osst :I: Tape driver with OnStream support version 0.99.4 [ 5.750502] osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $ [ 5.756246] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.758111] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.758486] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.758791] SCSI Media Changer driver v0.25 [ 5.761637] tun: Universal TUN/TAP device driver, 1.6 [ 5.761640] tun: (C) 1999-2004 Max Krasnyansky [ 5.780467] sd 0:0:1:0: [sda] Write Protect is off [ 5.781986] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.800874] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 5.801914] e100: Copyright(c) 1999-2006 Intel Corporation [ 5.803301] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 5.804310] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 5.806104] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 5.807534] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.810174] sky2: driver version 1.30 [ 5.812191] PPP generic driver version 2.4.2 [ 5.815452] PPP BSD Compression module registered [ 5.816051] PPP Deflate Compression module registered [ 5.817242] PPP MPPE Compression module registered [ 5.818466] NET: Registered protocol family 24 [ 5.819685] usbcore: registered new interface driver asix [ 5.820297] sda: sda1 [ 5.821896] usbcore: registered new interface driver ax88179_178a [ 5.823711] usbcore: registered new interface driver cdc_ether [ 5.825578] usbcore: registered new interface driver net1080 [ 5.827306] usbcore: registered new interface driver cdc_subset [ 5.830672] usbcore: registered new interface driver zaurus [ 5.831368] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.832874] usbcore: registered new interface driver cdc_ncm [ 5.835931] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 5.837539] ehci-pci: EHCI PCI platform driver [ 5.838908] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 5.840253] ohci-pci: OHCI PCI platform driver [ 5.841629] uhci_hcd: USB Universal Host Controller Interface driver [ 5.844314] usbcore: registered new interface driver usblp [ 5.846012] usbcore: registered new interface driver usb-storage [ 5.848956] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12