general protection fault in dma_direct_max_mapping_size RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. pci 0000:00:00.0: Limiting direct PCI/PCI transfers PCI: CLS 0 bytes, default 64 PCI-DMA: Using software bounce buffering for IO (SWIOTLB) software IO TLB: mapped [mem 0xbbffd000-0xbfffd000] (64MB) RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212733415c7, max_idle_ns: 440795236380 ns clocksource: Switched to clocksource tsc check: Scanning for low memory corruption every 60 seconds Initialise system trusted keyrings workingset: timestamp_bits=40 max_order=21 bucket_order=0 NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered 9p: Installing v9fs 9p2000 file system support Key type asymmetric registered Asymmetric key parser 'x509' registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) io scheduler mq-deadline registered io scheduler kyber registered usbcore: registered new interface driver udlfb usbcore: registered new interface driver smscufx input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: Sleep Button [SLPF] PCI Interrupt Link [LNKC] enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver PCI Interrupt Link [LNKD] enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A Non-volatile memory driver v1.3 Linux agpgart interface v0.103 usbcore: registered new interface driver udl loop: module loaded usbcore: registered new interface driver rtsx_usb usbcore: registered new interface driver viperboard usbcore: registered new interface driver dln2 usbcore: registered new interface driver pn533_usb usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl scsi host0: Virtio SCSI HBA kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc1+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dma_addressing_limited /./include/linux/dma-mapping.h:692 [inline] RIP: 0010:dma_direct_max_mapping_size+0x73/0x19a /kernel/dma/direct.c:408 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 1e 01 00 00 48 8b 9d 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 06 01 00 00 48 8d bd 48 03 00 00 48 8b 1b 48 b8 RSP: 0000:ffff8881da18f628 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d716c RDX: 0000000000000000 RSI: ffffffff812d7189 RDI: ffff8881d829fa78 RBP: ffff8881d829f740 R08: ffff8881da180000 R09: ffffed103ad1a0cb R10: ffffed103ad1a0ca R11: ffff8881d68d0657 R12: ffff8881d829f740 R13: ffff8881d769d7b0 R14: 0000000000000200 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000006a21000 CR4: 00000000001406e0 Call Trace: dma_max_mapping_size+0xb5/0xf0 /kernel/dma/mapping.c:375 __scsi_init_queue+0x17e/0x510 /drivers/scsi/scsi_lib.c:1787 scsi_mq_alloc_queue+0xcb/0x170 /drivers/scsi/scsi_lib.c:1833 scsi_alloc_sdev+0x82e/0xc50 /drivers/scsi/scsi_scan.c:269 scsi_probe_and_add_lun+0x1ee5/0x2cd0 /drivers/scsi/scsi_scan.c:1078 __scsi_scan_target+0x273/0xc30 /drivers/scsi/scsi_scan.c:1562 scsi_scan_channel.part.0+0x126/0x1a0 /drivers/scsi/scsi_scan.c:1650 scsi_scan_channel /drivers/scsi/scsi_scan.c:1677 [inline] scsi_scan_host_selected+0x2bb/0x3f0 /drivers/scsi/scsi_scan.c:1679 do_scsi_scan_host /drivers/scsi/scsi_scan.c:1817 [inline] do_scsi_scan_host+0x1e8/0x260 /drivers/scsi/scsi_scan.c:1807 scsi_scan_host /drivers/scsi/scsi_scan.c:1847 [inline] scsi_scan_host+0x37c/0x440 /drivers/scsi/scsi_scan.c:1835 virtscsi_probe+0x9b7/0xbb5 /drivers/scsi/virtio_scsi.c:847 virtio_dev_probe+0x463/0x710 /drivers/virtio/virtio.c:248 really_probe+0x281/0x650 /drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 /drivers/base/dd.c:709 device_driver_attach+0x108/0x140 /drivers/base/dd.c:983 __driver_attach+0xda/0x240 /drivers/base/dd.c:1060 bus_for_each_dev+0x14b/0x1d0 /drivers/base/bus.c:304 bus_add_driver+0x44e/0x5a0 /drivers/base/bus.c:645 driver_register+0x1c4/0x320 /drivers/base/driver.c:170 __write_once_size /./include/linux/compiler.h:226 [inline] INIT_LIST_HEAD /./include/linux/list.h:28 [inline] init+0xa1/0x115 /drivers/char/virtio_console.c:2251 do_one_initcall+0xf0/0x614 /init/main.c:939 do_initcall_level /init/main.c:1007 [inline] do_initcalls /init/main.c:1015 [inline] do_basic_setup /init/main.c:1032 [inline] kernel_init_freeable+0x4a9/0x596 /init/main.c:1192 kernel_init+0xd/0x1bf /init/main.c:1110 ret_from_fork+0x24/0x30 /arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 247acb7f5b43d7d5 ]--- RIP: 0010:dma_addressing_limited /./include/linux/dma-mapping.h:692 [inline] RIP: 0010:dma_direct_max_mapping_size+0x73/0x19a /kernel/dma/direct.c:408 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 1e 01 00 00 48 8b 9d 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 06 01 00 00 48 8d bd 48 03 00 00 48 8b 1b 48 b8 RSP: 0000:ffff8881da18f628 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d716c RDX: 0000000000000000 RSI: ffffffff812d7189 RDI: ffff8881d829fa78 RBP: ffff8881d829f740 R08: ffff8881da180000 R09: ffffed103ad1a0cb R10: ffffed103ad1a0ca R11: ffff8881d68d0657 R12: ffff8881d829f740 R13: ffff8881d769d7b0 R14: 0000000000000200 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000006a21000 CR4: 00000000001406e0 [ 0.000000][ T0] Linux version 5.3.0-rc1+ (syzkaller@ci2) (gcc version 9.0.0 20181231 (experimental) (GCC)) #1 SMP Tue Jul 23 18:03:43 UTC 2019 [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor lsm=yama,safesetid,integrity,tomoyo,apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Hygon HygonGenuine [ 0.000000][ T0] zhaoxin Shanghai [ 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 0x0000000100000000-0x000000021fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 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 [ 0.000003][ T0] kvm-clock: cpu 0, msr 83ee001, primary cpu clock [ 0.000004][ T0] kvm-clock: using sched offset of 2429554596 cycles [ 0.001058][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003845][ T0] tsc: Detected 2299.998 MHz processor [ 0.006142][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.007360][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.008709][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.015871][ T0] found SMP MP-table at [mem 0x000f29c0-0x000f29cf] [ 0.016964][ T0] check: Scanning 1 areas for low memory corruption [ 0.018082][ T0] Using GB pages for direct mapping [ 0.020779][ T0] ACPI: Early table checksum verification disabled [ 0.021778][ T0] ACPI: RSDP 0x00000000000F2750 000014 (v00 Google) [ 0.022700][ T0] ACPI: RSDT 0x00000000BFFFDA50 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.024078][ T0] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.025622][ T0] ACPI: DSDT 0x00000000BFFFDA90 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.027109][ T0] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.027966][ T0] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.028988][ T0] ACPI: SSDT 0x00000000BFFFF540 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.030377][ T0] ACPI: APIC 0x00000000BFFFF450 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.031704][ T0] ACPI: WAET 0x00000000BFFFF420 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.033219][ T0] ACPI: SRAT 0x00000000BFFFF350 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.035226][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.036047][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.037152][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.038276][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.039299][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.040359][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.042267][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.044227][ T0] NODE_DATA(0) allocated [mem 0x21fffa000-0x21fffdfff] [ 0.093970][ T0] Zone ranges: [ 0.094642][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.096065][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.097206][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.098416][ T0] Movable zone start for each node [ 0.099194][ T0] Early memory node ranges [ 0.099878][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.100878][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.101941][ T0] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.103013][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.103022][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.593593][ T0] kasan: KernelAddressSanitizer initialized [ 0.594901][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.595848][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.597180][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.598528][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.599853][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.601031][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.602512][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.603798][ T0] Using ACPI (MADT) for SMP configuration information [ 0.604859][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.605855][ T0] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.607102][ T0] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.608136][ T0] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.609292][ T0] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.610495][ T0] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.611860][ T0] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.613118][ T0] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.614365][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.615429][ T0] Booting paravirtualized kernel on KVM [ 0.616196][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.594347][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 1.596629][ T0] percpu: Embedded 62 pages/cpu s213000 r8192 d32760 u1048576 [ 1.597738][ T0] Built 1 zonelists, mobility grouping on. Total pages: 1935238 [ 1.598904][ T0] Policy zone: Normal [ 1.599477][ T0] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor lsm=yama,safesetid,integrity,tomoyo,apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 1.613114][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 1.615928][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 1.617159][ T0] mem auto-init: stack:off, heap alloc:off, heap free:off [ 2.281098][ T0] Memory: 6519792K/7863916K available (73733K kernel code, 12692K rwdata, 15988K rodata, 2360K init, 22740K bss, 1344124K reserved, 0K cma-reserved) [ 2.284333][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 2.288059][ T0] Running RCU self tests [ 2.288666][ T0] rcu: Hierarchical RCU implementation. [ 2.289371][ T0] rcu: RCU event tracing is enabled. [ 2.290082][ T0] rcu: RCU lockdep checking is enabled. [ 2.290839][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 2.291774][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 2.292710][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 2.293783][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 2.297990][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 2.299591][ T0] random: get_random_bytes called from start_kernel+0x4db/0x872 with crng_init=0 [ 2.302125][ T0] Console: colour VGA+ 80x25 [ 2.302902][ T0] printk: console [ttyS0] enabled [ 2.302902][ T0] printk: console [ttyS0] enabled [ 2.304328][ T0] printk: bootconsole [earlyser0] disabled [ 2.304328][ T0] printk: bootconsole [earlyser0] disabled [ 2.305914][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 2.307069][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 2.307768][ T0] ... MAX_LOCK_DEPTH: 48 [ 2.308585][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 2.309334][ T0] ... CLASSHASH_SIZE: 4096 [ 2.310064][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 2.310781][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 2.311489][ T0] ... CHAINHASH_SIZE: 32768 [ 2.312234][ T0] memory used by lock dependency info: 6237 kB [ 2.313073][ T0] per task-struct memory footprint: 1920 bytes [ 2.313993][ T0] ACPI: Core revision 20190703 [ 2.315325][ T0] APIC: Switch to symmetric I/O mode setup [ 2.319336][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 2.320444][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212733415c7, max_idle_ns: 440795236380 ns [ 2.322028][ T0] Calibrating delay loop (skipped) preset value.. 4599.99 BogoMIPS (lpj=22999980) [ 2.323392][ T0] pid_max: default: 32768 minimum: 301 [ 2.324344][ T0] LSM: Security Framework initializing [ 2.332017][ T0] LSM: security= is ignored because it is superseded by lsm= [ 2.333135][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 2.334354][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 2.337094][ T0] *** VALIDATE proc *** [ 2.338212][ T0] *** VALIDATE cgroup1 *** [ 2.338853][ T0] *** VALIDATE cgroup2 *** [ 2.339981][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 2.341004][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 2.342050][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 2.342080][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 2.344937][ T0] MDS: Mitigation: Clear CPU buffers [ 2.346276][ T0] Freeing SMP alternatives memory: 40K [ 2.352005][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 2.352005][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 2.352005][ T1] rcu: Hierarchical SRCU implementation. [ 2.352005][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.352005][ T1] smp: Bringing up secondary CPUs ... [ 2.352005][ T1] x86: Booting SMP configuration: [ 2.352005][ T1] .... node #0, CPUs: #1 [ 0.022571][ T0] kvm-clock: cpu 1, msr 83ee041, secondary cpu clock [ 2.353315][ 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. [ 2.354887][ T1] smp: Brought up 1 node, 2 CPUs [ 2.355551][ T1] smpboot: Max logical packages: 1 [ 2.356308][ T1] smpboot: Total of 2 processors activated (9199.99 BogoMIPS) [ 2.358460][ T1] devtmpfs: initialized [ 2.373843][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.375416][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 2.377436][ T1] PM: RTC time: 18:12:07, date: 2019-07-23 [ 2.379188][ T1] NET: Registered protocol family 16 [ 2.383033][ T1] audit: initializing netlink subsys (disabled) [ 2.383997][ T21] audit: type=2000 audit(1563905527.572:1): state=initialized audit_enabled=0 res=1 [ 2.384250][ T1] cpuidle: using governor menu [ 2.384799][ T1] ACPI: bus type PCI registered [ 2.386123][ T1] PCI: Using configuration type 1 for base access [ 2.492527][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.493542][ T27] cryptomgr_test (27) used greatest stack depth: 30208 bytes left [ 2.493542][ T29] kworker/u4:0 (29) used greatest stack depth: 27608 bytes left [ 2.512781][ T1] ACPI: Added _OSI(Module Device) [ 2.513553][ T1] ACPI: Added _OSI(Processor Device) [ 2.514265][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.515102][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.515971][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.516824][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.522022][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.572963][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.587082][ T1] ACPI: Interpreter enabled [ 2.588040][ T1] ACPI: (supports S0 S3 S4 S5) [ 2.588727][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.589674][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.593677][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 2.670151][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 2.671279][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 2.672408][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 2.679525][ T1] PCI host bridge to bus 0000:00 [ 2.680372][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.682032][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.683201][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.684337][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 2.685532][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.687071][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 2.693457][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 2.709159][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 2.723956][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.727638][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 2.733779][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 2.738045][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfe000-0xfebfe07f] [ 2.751597][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 2.756622][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 2.762027][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebff000-0xfebff07f] [ 2.786261][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 2.789943][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 2.793535][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 2.797095][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 2.799837][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 2.806543][ T1] vgaarb: loaded [ 2.806543][ T1] SCSI subsystem initialized [ 2.806543][ T1] ACPI: bus type USB registered [ 2.806543][ T1] usbcore: registered new interface driver usbfs [ 2.812173][ T1] usbcore: registered new interface driver hub [ 2.813401][ T1] usbcore: registered new device driver usb [ 2.814837][ T1] mc: Linux media interface: v0.10 [ 2.815703][ T1] videodev: Linux video capture interface: v2.00 [ 2.816934][ T1] pps_core: LinuxPPS API ver. 1 registered [ 2.817839][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 2.819280][ T1] PTP clock support registered [ 2.822243][ T1] EDAC MC: Ver: 3.0.0 [ 2.823394][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 2.823986][ T1] PCI: Using ACPI for IRQ routing [ 2.827351][ T1] Bluetooth: Core ver 2.22 [ 2.828160][ T1] NET: Registered protocol family 31 [ 2.828877][ T1] Bluetooth: HCI device and connection manager initialized [ 2.830006][ T1] Bluetooth: HCI socket layer initialized [ 2.830835][ T1] Bluetooth: L2CAP socket layer initialized [ 2.832037][ T1] Bluetooth: SCO socket layer initialized [ 2.832880][ T1] NET: Registered protocol family 8 [ 2.833584][ T1] NET: Registered protocol family 20 [ 2.834475][ T1] NetLabel: Initializing [ 2.835096][ T1] NetLabel: domain hash size = 128 [ 2.835791][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 2.836916][ T1] NetLabel: unlabeled traffic allowed by default [ 2.838008][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 2.838008][ T1] NET: Registered protocol family 39 [ 2.842488][ T1] clocksource: Switched to clocksource kvm-clock [ 3.819262][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.820200][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.821641][ T1] *** VALIDATE hugetlbfs *** [ 3.822916][ T1] pnp: PnP ACPI init [ 3.833670][ T1] pnp: PnP ACPI: found 7 devices [ 3.855464][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.855468][ T1] thermal_sys: Registered thermal governor 'user_space' [ 3.861236][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.863862][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.864893][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.865896][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.866995][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window] [ 3.868896][ T1] NET: Registered protocol family 2 [ 3.870920][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 3.872552][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 3.874401][ T1] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, linear) [ 3.879563][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.881629][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 3.883198][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 3.885656][ T1] NET: Registered protocol family 1 [ 3.887922][ T1] RPC: Registered named UNIX socket transport module. [ 3.888978][ T1] RPC: Registered udp transport module. [ 3.889814][ T1] RPC: Registered tcp transport module. [ 3.890794][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.892886][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.893918][ T1] PCI: CLS 0 bytes, default 64 [ 3.895161][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.896218][ T1] software IO TLB: mapped [mem 0xbbffd000-0xbfffd000] (64MB) [ 3.899482][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 3.900793][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212733415c7, max_idle_ns: 440795236380 ns [ 3.902381][ T1] clocksource: Switched to clocksource tsc [ 3.905633][ T1] check: Scanning for low memory corruption every 60 seconds [ 3.910013][ T1] Initialise system trusted keyrings [ 3.911137][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 3.949780][ T1] NFS: Registering the id_resolver key type [ 3.950861][ T1] Key type id_resolver registered [ 3.951798][ T1] Key type id_legacy registered [ 3.953319][ T1] 9p: Installing v9fs 9p2000 file system support [ 3.959887][ T1] Key type asymmetric registered [ 3.960684][ T1] Asymmetric key parser 'x509' registered [ 3.961856][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) [ 3.963170][ T1] io scheduler mq-deadline registered [ 3.964034][ T1] io scheduler kyber registered [ 3.967097][ T1] usbcore: registered new interface driver udlfb [ 3.968247][ T1] usbcore: registered new interface driver smscufx [ 3.970111][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 3.971495][ T1] ACPI: Power Button [PWRF] [ 3.972691][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 3.973975][ T1] ACPI: Sleep Button [SLPF] [ 3.987344][ T1] PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 3.988327][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.000554][ T1] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.001490][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.006154][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.029197][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.053156][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.077145][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.101374][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.105273][ T1] Non-volatile memory driver v1.3 [ 4.106636][ T1] Linux agpgart interface v0.103 [ 4.112344][ T1] usbcore: registered new interface driver udl [ 4.133078][ T1] loop: module loaded [ 4.138016][ T1] usbcore: registered new interface driver rtsx_usb [ 4.139480][ T1] usbcore: registered new interface driver viperboard [ 4.141047][ T1] usbcore: registered new interface driver dln2 [ 4.142684][ T1] usbcore: registered new interface driver pn533_usb [ 4.144047][ T1] usbcore: registered new interface driver port100 [ 4.145377][ T1] usbcore: registered new interface driver nfcmrvl [ 4.158094][ T1] scsi host0: Virtio SCSI HBA [ 4.198216][ T1] kasan: CONFIG_KASAN_INLINE enabled [ 4.200066][ T1] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 4.202761][ T1] general protection fault: 0000 [#1] SMP KASAN [ 4.204812][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc1+ #1 [ 4.206992][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 4.210452][ T1] RIP: 0010:dma_direct_max_mapping_size+0x73/0x19a [ 4.212421][ T1] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 1e 01 00 00 48 8b 9d 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 06 01 00 00 48 8d bd 48 03 00 00 48 8b 1b 48 b8 [ 4.212722][ T1] RSP: 0000:ffff8881da18f628 EFLAGS: 00010246 [ 4.212722][ T1] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d716c [ 4.212722][ T1] RDX: 0000000000000000 RSI: ffffffff812d7189 RDI: ffff8881d829fa78 [ 4.212722][ T1] RBP: ffff8881d829f740 R08: ffff8881da180000 R09: ffffed103ad1a0cb [ 4.212722][ T1] R10: ffffed103ad1a0ca R11: ffff8881d68d0657 R12: ffff8881d829f740 [ 4.212722][ T1] R13: ffff8881d769d7b0 R14: 0000000000000200 R15: 0000000000000000 [ 4.212722][ T1] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 4.212722][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.212722][ T1] CR2: 0000000000000000 CR3: 0000000006a21000 CR4: 00000000001406e0 [ 4.212722][ T1] Call Trace: [ 4.212722][ T1] dma_max_mapping_size+0xb5/0xf0 [ 4.212722][ T1] __scsi_init_queue+0x17e/0x510 [ 4.212722][ T1] scsi_mq_alloc_queue+0xcb/0x170 [ 4.212722][ T1] scsi_alloc_sdev+0x82e/0xc50 [ 4.212722][ T1] scsi_probe_and_add_lun+0x1ee5/0x2cd0 [ 4.212722][ T1] ? find_held_lock+0x2d/0x110 [ 4.212722][ T1] ? __pm_runtime_resume+0x111/0x180 [ 4.212722][ T1] ? scsi_alloc_sdev+0xc50/0xc50 [ 4.212722][ T1] ? mark_held_locks+0x9f/0xe0 [ 4.212722][ T1] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 4.212722][ T1] ? lockdep_hardirqs_on+0x379/0x580 [ 4.212722][ T1] __scsi_scan_target+0x273/0xc30 [ 4.212722][ T1] ? find_held_lock+0x2d/0x110 [ 4.212722][ T1] ? __pm_runtime_resume+0x111/0x180 [ 4.212722][ T1] ? scsi_probe_and_add_lun+0x2cd0/0x2cd0 [ 4.212722][ T1] ? mark_lock+0xbc/0x1130 [ 4.212722][ T1] scsi_scan_channel.part.0+0x126/0x1a0 [ 4.212722][ T1] scsi_scan_host_selected+0x2bb/0x3f0 [ 4.212722][ T1] do_scsi_scan_host+0x1e8/0x260 [ 4.212722][ T1] scsi_scan_host+0x37c/0x440 [ 4.212722][ T1] virtscsi_probe+0x9b7/0xbb5 [ 4.212722][ T1] ? virtscsi_restore+0x240/0x240 [ 4.212722][ T1] virtio_dev_probe+0x463/0x710 [ 4.212722][ T1] ? virtio_device_restore+0x1f0/0x1f0 [ 4.212722][ T1] really_probe+0x281/0x650 [ 4.212722][ T1] driver_probe_device+0x101/0x1b0 [ 4.212722][ T1] device_driver_attach+0x108/0x140 [ 4.212722][ T1] __driver_attach+0xda/0x240 [ 4.212722][ T1] ? device_driver_attach+0x140/0x140 [ 4.212722][ T1] bus_for_each_dev+0x14b/0x1d0 [ 4.212722][ T1] ? subsys_dev_iter_exit+0x20/0x20 [ 4.212722][ T1] bus_add_driver+0x44e/0x5a0 [ 4.212722][ T1] driver_register+0x1c4/0x320 [ 4.212722][ T1] ? spi_transport_init+0x132/0x132 [ 4.212722][ T1] init+0xa1/0x115 [ 4.212722][ T1] do_one_initcall+0xf0/0x614 [ 4.212722][ T1] ? perf_trace_initcall_level+0x3e0/0x3e0 [ 4.212722][ T1] ? parameq+0x110/0x160 [ 4.212722][ T1] kernel_init_freeable+0x4a9/0x596 [ 4.212722][ T1] ? rest_init+0x371/0x371 [ 4.212722][ T1] kernel_init+0xd/0x1bf [ 4.212722][ T1] ret_from_fork+0x24/0x30 [ 4.212722][ T1] Modules linked in: [ 4.308290][ T1] ---[ end trace 247acb7f5b43d7d5 ]--- [ 4.309994][ T1] RIP: 0010:dma_direct_max_mapping_size+0x73/0x19a [ 4.312168][ T1] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 1e 01 00 00 48 8b 9d 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 06 01 00 00 48 8d bd 48 03 00 00 48 8b 1b 48 b8 [ 4.318340][ T1] RSP: 0000:ffff8881da18f628 EFLAGS: 00010246 [ 4.320143][ T1] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d716c [ 4.322831][ T1] RDX: 0000000000000000 RSI: ffffffff812d7189 RDI: ffff8881d829fa78 [ 4.325468][ T1] RBP: ffff8881d829f740 R08: ffff8881da180000 R09: ffffed103ad1a0cb [ 4.327936][ T1] R10: ffffed103ad1a0ca R11: ffff8881d68d0657 R12: ffff8881d829f740 [ 4.330211][ T1] R13: ffff8881d769d7b0 R14: 0000000000000200 R15: 0000000000000000 [ 4.332848][ T1] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 4.335744][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.337850][ T1] CR2: 0000000000000000 CR3: 0000000006a21000 CR4: 00000000001406e0 [ 4.340337][ T1] Kernel panic - not syncing: Fatal exception [ 4.342644][ T1] Kernel Offset: disabled [ 4.342775][ T1] Rebooting in 86400 seconds..