[ 16.372533] 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: [ 20.833293] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 21.213874] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 21.962530] random: sshd: uninitialized urandom read (32 bytes read, 81 bits of entropy available) [ 22.141264] random: sshd: uninitialized urandom read (32 bytes read, 87 bits of entropy available) Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. [ 27.515748] random: sshd: uninitialized urandom read (32 bytes read, 95 bits of entropy available) executing program [ 27.612358] ================================================================== [ 27.619754] BUG: KASAN: slab-out-of-bounds in sg_remove_request+0xf9/0x110 [ 27.626740] Read of size 8 at addr ffff8800b5631140 by task syzkaller771773/3322 [ 27.634240] [ 27.635848] CPU: 1 PID: 3322 Comm: syzkaller771773 Not tainted 4.4.111-g7902639 #18 [ 27.643613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.652957] 0000000000000000 6e6e9991c49ed7db ffff8800b3c8fa40 ffffffff81d0509d [ 27.660943] ffffea0002d58c40 ffff8800b5631140 0000000000000000 ffff8800b5631140 [ 27.668918] ffff8800b4610238 ffff8800b3c8fa78 ffffffff814fd433 ffff8800b5631140 [ 27.676894] Call Trace: [ 27.679474] [] dump_stack+0xc1/0x124 [ 27.684824] [] print_address_description+0x73/0x260 [ 27.691462] [] kasan_report+0x285/0x370 [ 27.697062] [] ? sg_remove_request+0xf9/0x110 [ 27.703182] [] __asan_report_load8_noabort+0x14/0x20 [ 27.709911] [] sg_remove_request+0xf9/0x110 [ 27.715856] [] sg_finish_rem_req+0x295/0x340 [ 27.721889] [] sg_read+0xa21/0x1490 [ 27.727147] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 27.733787] [] ? __raw_spin_lock_init+0x1c/0x100 [ 27.740163] [] ? lockdep_init_map+0xeb/0x1690 [ 27.746279] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 27.752919] [] __vfs_read+0x103/0x440 [ 27.758345] [] ? vfs_iter_write+0x2d0/0x2d0 [ 27.764299] [] ? fsnotify+0x5ad/0xee0 [ 27.769722] [] ? fsnotify+0xee0/0xee0 [ 27.775146] [] ? avc_policy_seqno+0x9/0x20 [ 27.781016] [] ? selinux_file_permission+0x348/0x460 [ 27.787752] [] ? security_file_permission+0x89/0x1e0 [ 27.794480] [] ? rw_verify_area+0x100/0x2f0 [ 27.800430] [] vfs_read+0x123/0x3a0 [ 27.805674] [] SyS_read+0xd9/0x1b0 [ 27.810834] [] ? do_sendfile+0xd30/0xd30 [ 27.816529] [] ? vmacache_update+0xfe/0x130 [ 27.822491] [] ? do_fast_syscall_32+0xd7/0x890 [ 27.828695] [] ? do_sendfile+0xd30/0xd30 [ 27.834379] [] do_fast_syscall_32+0x314/0x890 [ 27.840500] [] sysenter_flags_fixed+0xd/0x17 [ 27.846527] [ 27.848127] Allocated by task 0: [ 27.851458] (stack is not available) [ 27.855148] [ 27.856756] Freed by task 0: [ 27.859744] (stack is not available) [ 27.863424] [ 27.865022] The buggy address belongs to the object at ffff8800b5631100 [ 27.865022] which belongs to the cache fasync_cache of size 96 [ 27.877660] The buggy address is located 64 bytes inside of [ 27.877660] 96-byte region [ffff8800b5631100, ffff8800b5631160) [ 27.889346] The buggy address belongs to the page: [ 28.251056] kasan: CONFIG_KASAN_INLINE enabled [ 28.255516] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 28.268492] Dumping ftrace buffer: [ 28.272034] (ftrace buffer empty) [ 28.275757] Modules linked in: [ 28.279094] CPU: 0 PID: 489 Comm: khugepaged Not tainted 4.4.111-g7902639 #18 [ 28.286366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.295737] task: ffff8801d8c217c0 task.stack: ffff8801d93d8000 [ 28.301801] RIP: 0010:[] [] debug_check_no_obj_freed+0x1a8/0x9b0 [ 28.311325] RSP: 0018:ffff8801d93df7d8 EFLAGS: 00010803 [ 28.316783] RAX: 0000000000000282 RBX: ffff88021fb37000 RCX: 0000000000000002 [ 28.324062] RDX: 1d2000dc1b1d0161 RSI: ffff8801d93df868 RDI: ffffffff8148f9a9 [ 28.331337] RBP: ffff8801d93df8d0 R08: 1ffffffff0291f35 R09: ffffffff850f1140 [ 28.338612] R10: dead000000000200 R11: 1ffff1003b27bec2 R12: ed04cee8ffffff45 [ 28.345890] R13: ffff88021fb36000 R14: e90006e0d8e80b0f R15: dffffc0000000000 [ 28.353166] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 28.361399] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.367290] CR2: 000055a91af9d120 CR3: 00000000b554c000 CR4: 0000000000160670 [ 28.374571] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.381855] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.389132] Stack: [ 28.391290] 0000000000000000 ffffffff85183600 ffff8801d8c217c0 0000000000000000 [ 28.399471] 1ffff1003b27bf09 ffffffff857630c0 ffff88021fb37000 ffff88021fb37000 [ 28.407534] ffff8801d93df860 ffffffff8123581f 0000000000004680 fffffbfff0aec618 [ 28.415588] Call Trace: [ 28.418185] [] ? mark_held_locks+0xaf/0x100 [ 28.424179] [] ? debug_object_active_state+0x420/0x420 [ 28.431127] [] free_pages_prepare+0x4a9/0xb30 [ 28.437294] [] free_hot_cold_page+0x3f/0x3a0 [ 28.443375] [] free_hot_cold_page_list+0x8f/0x3b0 [ 28.449886] [] release_pages+0x1f7/0x4f0 [ 28.455619] [] ? put_pages_list+0xb0/0xb0 [ 28.461440] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 28.468383] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.475246] [] pagevec_lru_move_fn+0x1c5/0x250 [ 28.481498] [] ? __put_single_page+0x60/0x60 [ 28.487578] [] __lru_cache_add+0x187/0x240 [ 28.493484] [] lru_cache_add+0x44/0x90 [ 28.499040] [] putback_lru_page+0xa7/0x110 [ 28.504952] [] khugepaged+0x211f/0x2ac0 [ 28.510604] [] ? set_huge_zero_page.isra.52.part.53+0x100/0x100 [ 28.518332] [] ? prepare_to_wait_event+0x420/0x420 [ 28.524935] [] ? __kthread_parkme+0x164/0x230 [ 28.531105] [] kthread+0x268/0x300 [ 28.536310] [] ? set_huge_zero_page.isra.52.part.53+0x100/0x100 [ 28.544047] [] ? kthread_create_on_node+0x400/0x400 [ 28.550737] [] ? kthread_create_on_node+0x400/0x400 [ 28.557425] [] ret_from_fork+0x3f/0x70 [ 28.562990] [] ? kthread_create_on_node+0x400/0x400 [ 28.569772] Code: 48 c7 c6 40 ea 75 85 4c 8b 34 0e 4d 85 f6 0f 84 c5 03 00 00 49 ba 00 02 00 00 00 00 ad de 31 c9 48 8d 75 98 4c 89 f2 48 c1 ea 03 <42> 80 3c 3a 00 0f 85 f0 03 00 00 49 8d 7e 18 83 c1 01 49 8b 16 [ 28.597464] RIP [] debug_check_no_obj_freed+0x1a8/0x9b0 [ 28.604633] RSP [ 28.608272] ---[ end trace 13b76b9365b6ffd1 ]--- [ 28.613036] Kernel panic - not syncing: Fatal exception 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: 0x00000000039c526e input_len: 0x000000000142691c output: 0x0000000001000000 output_len: 0x0000000003dd7a40 run_size: 0x000000000550d000 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 4.4.111-g7902639 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #18 SMP PREEMPT Fri Jan 12 17:51:47 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 1943858378 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: 1935238 [ 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: 6581460K/7863916K available (40429K kernel code, 6130K rwdata, 8808K rodata, 1844K init, 23616K bss, 1282456K 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 [ 1.305876] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.307058] pid_max: default: 32768 minimum: 301 [ 1.307770] ACPI: Core revision 20150930 [ 1.380175] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.381452] Security Framework initialized [ 1.382101] SELinux: Initializing. [ 1.382754] AppArmor: AppArmor disabled by boot time parameter [ 1.383679] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.384674] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.388531] Initializing cgroup subsys io [ 1.389153] Initializing cgroup subsys freezer [ 1.389815] Initializing cgroup subsys hugetlb [ 1.390444] Initializing cgroup subsys debug [ 1.391231] CPU: Physical Processor ID: 0 [ 1.393202] mce: CPU supports 32 MCE banks [ 1.393942] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.394781] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.398092] Freeing SMP alternatives memory: 44K [ 1.407338] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.525218] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.526916] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.615542] x86: Booting SMP configuration: [ 1.616254] .... node #0, CPUs: #1 [ 1.617117] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.622274] x86: Booted up 1 node, 2 CPUs [ 1.622856] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.627627] devtmpfs: initialized [ 1.637319] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.638741] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.640516] xor: automatically using best checksumming function: [ 1.653372] kworker/u4:0 (21) used greatest stack depth: 27864 bytes left [ 1.735235] avx : 21584.000 MB/sec [ 1.736499] RTC time: 5:55:20, date: 01/14/18 [ 1.738830] NET: Registered protocol family 16 [ 1.740107] schedtune: init normalization constants... [ 1.740828] schedtune: no energy model data [ 1.741423] schedtune: disabled! [ 1.772439] cpuidle: using governor ladder [ 1.802204] cpuidle: using governor menu [ 1.803670] ACPI: bus type PCI registered [ 1.804298] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.807272] PCI: Using configuration type 1 for base access [ 1.812435] kworker/u4:0 (39) used greatest stack depth: 27224 bytes left [ 1.817700] kworker/u4:1 (56) used greatest stack depth: 26984 bytes left [ 2.255209] raid6: sse2x1 gen() 4774 MB/s [ 2.425229] raid6: sse2x1 xor() 2475 MB/s [ 2.595199] raid6: sse2x2 gen() 7555 MB/s [ 2.765181] raid6: sse2x2 xor() 4272 MB/s [ 2.935171] raid6: sse2x4 gen() 9791 MB/s [ 3.105167] raid6: sse2x4 xor() 4518 MB/s [ 3.275163] raid6: avx2x1 gen() 9412 MB/s [ 3.445154] raid6: avx2x2 gen() 14600 MB/s [ 3.615151] raid6: avx2x4 gen() 19096 MB/s [ 3.615845] raid6: using algorithm avx2x4 gen() 19096 MB/s [ 3.616705] raid6: using avx2x2 recovery algorithm [ 3.618078] ACPI: Added _OSI(Module Device) [ 3.618791] ACPI: Added _OSI(Processor Device) [ 3.619510] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.620207] ACPI: Added _OSI(Processor Aggregator Device) [ 3.630718] ACPI: Executed 2 blocks of module-level executable AML code [ 3.707847] ACPI: Interpreter enabled [ 3.708768] ACPI: (supports S0 S3 S4 S5) [ 3.709416] ACPI: Using IOAPIC for interrupt routing [ 3.710592] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.922777] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.923892] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.925366] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.926413] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.953159] PCI host bridge to bus 0000:00 [ 3.953842] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.954823] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.955807] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.956919] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.957982] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.002257] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.090672] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.097001] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.103194] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.109389] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.113235] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.126399] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.129951] vgaarb: loaded [ 4.133354] SCSI subsystem initialized [ 4.143924] ACPI: bus type USB registered [ 4.146024] usbcore: registered new interface driver usbfs [ 4.148000] usbcore: registered new interface driver hub [ 4.149091] usbcore: registered new device driver usb [ 4.151312] pps_core: LinuxPPS API ver. 1 registered [ 4.152201] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.153670] PTP clock support registered [ 4.174056] Advanced Linux Sound Architecture Driver Initialized. [ 4.175734] PCI: Using ACPI for IRQ routing [ 4.192251] NetLabel: Initializing [ 4.192820] NetLabel: domain hash size = 128 [ 4.193446] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.194476] NetLabel: unlabeled traffic allowed by default [ 4.197234] amd_nb: Cannot enumerate AMD northbridges [ 4.198069] clocksource: Switched to clocksource kvm-clock