[    0.000000][    T0] Booting Linux on physical CPU 0x0000000000 [0x411fd070]
[    0.000000][    T0] Linux version 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 (syzkaller@syzkaller) (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now
[    0.000000][    T0] Machine model: linux,dummy-virt
[    0.000000][    T0] **********************************************************
[    0.000000][    T0] **   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
[    0.000000][    T0] **                                                      **
[    0.000000][    T0] ** This system shows unhashed kernel memory addresses   **
[    0.000000][    T0] ** via the console, logs, and other interfaces. This    **
[    0.000000][    T0] ** might reduce the security of your system.            **
[    0.000000][    T0] **                                                      **
[    0.000000][    T0] ** If you see this message and you are not debugging    **
[    0.000000][    T0] ** the kernel, report this immediately to your system   **
[    0.000000][    T0] ** administrator!                                       **
[    0.000000][    T0] **                                                      **
[    0.000000][    T0] **   NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE   **
[    0.000000][    T0] **********************************************************
[    0.000000][    T0] efi: UEFI not found.
[    0.000000][    T0] NUMA: No NUMA configuration found
[    0.000000][    T0] NUMA: Faking a node at [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000][    T0] NUMA: NODE_DATA [mem 0xbfc23ec0-0xbfc26fff]
[    0.000000][    T0] Zone ranges:
[    0.000000][    T0]   DMA      [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000][    T0]   DMA32    empty
[    0.000000][    T0]   Normal   empty
[    0.000000][    T0]   Device   empty
[    0.000000][    T0] Movable zone start for each node
[    0.000000][    T0] Early memory node ranges
[    0.000000][    T0]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000][    T0] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000][    T0] cma: Reserved 32 MiB at 0x00000000bbc00000
[    0.000000][    T0] kasan: KernelAddressSanitizer initialized
[    0.000000][    T0] psci: probing for conduit method from DT.
[    0.000000][    T0] psci: PSCIv0.2 detected in firmware.
[    0.000000][    T0] psci: Using standard PSCI v0.2 function IDs
[    0.000000][    T0] psci: Trusted OS migration not required
[    0.000000][    T0] percpu: Embedded 41 pages/cpu s128904 r8192 d30840 u167936
[    0.000000][    T0] Detected PIPT I-cache on CPU0
[    0.000000][    T0] CPU features: detected: ARM erratum 832075
[    0.000000][    T0] CPU features: detected: ARM erratum 834220
[    0.000000][    T0] CPU features: detected: Spectre-v2
[    0.000000][    T0] CPU features: detected: Spectre-v4
[    0.000000][    T0] CPU features: detected: ARM errata 1165522, 1319367, or 1530923
[    0.000000][    T0] Built 1 zonelists, mobility grouping on.  Total pages: 516096
[    0.000000][    T0] Policy zone: DMA
[    0.000000][    T0] Kernel command line: earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/vda console=ttyAMA0  earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 no_hash_pointers root=/dev/vda console=ttyAMA0 watchdog_thresh=165 workqueue.watchdog_thresh=420 dummy_hcd.num=2 panic_on_warn=1
[    0.000000][    T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[    0.000000][    T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.000000][    T0] mem auto-init: stack:off, heap alloc:on, heap free:off
[    0.000000][    T0] Memory: 1561452K/2097152K available (94144K kernel code, 27136K rwdata, 31812K rodata, 2176K init, 14234K bss, 502932K reserved, 32768K cma-reserved)
[    0.000000][    T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000][    T0] Running RCU self tests
[    0.000000][    T0] rcu: Preemptible hierarchical RCU implementation.
[    0.000000][    T0] rcu: 	RCU lockdep checking is enabled.
[    0.000000][    T0] rcu: 	RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[    0.000000][    T0] rcu: 	RCU callback double-/use-after-free debug enabled.
[    0.000000][    T0] rcu: 	RCU debug extended QS entry/exit.
[    0.000000][    T0] 	All grace periods are expedited (rcu_expedited).
[    0.000000][    T0] 	Trampoline variant of Tasks RCU enabled.
[    0.000000][    T0] 	Tracing variant of Tasks RCU enabled.
[    0.000000][    T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000][    T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000][    T0] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000][    T0] GIC: Using split EOI/Deactivate mode
[    0.000000][    T0] GICv2m: range[mem 0x08020000-0x08020fff], SPI[80:143]
[    0.000000][    T0] random: get_random_bytes called from start_kernel+0x200/0x3e8 with crng_init=0
[    0.000000][    T0] arch_timer: cp15 timer(s) running at 62.50MHz (phys).
[    0.000000][    T0] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns
[    0.000164][    T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns
[    0.028943][    T0] Console: colour dummy device 80x25
[    0.031675][    T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.031920][    T0] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.032091][    T0] ... MAX_LOCK_DEPTH:          48
[    0.032272][    T0] ... MAX_LOCKDEP_KEYS:        8192
[    0.032443][    T0] ... CLASSHASH_SIZE:          4096
[    0.032614][    T0] ... MAX_LOCKDEP_ENTRIES:     32768
[    0.032785][    T0] ... MAX_LOCKDEP_CHAINS:      65536
[    0.032956][    T0] ... CHAINHASH_SIZE:          32768
[    0.033127][    T0]  memory used by lock dependency info: 6365 kB
[    0.033314][    T0]  memory used for stack traces: 4224 kB
[    0.033484][    T0]  per task-struct memory footprint: 1920 bytes
[    0.041168][    T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000)
[    0.041869][    T0] pid_max: default: 32768 minimum: 301
[    0.046549][    T0] LSM: Security Framework initializing
[    0.048735][    T0] Yama: becoming mindful.
[    0.053617][    T0] TOMOYO Linux initialized
[    0.055654][    T0] SELinux:  Initializing.
[    0.060196][    T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.060563][    T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[    0.264512][    T1] Running RCU-tasks wait API self tests
[    0.425361][    T1] rcu: Hierarchical SRCU implementation.
[    0.435584][   T10] Callback from call_rcu_tasks_trace() invoked.
[    0.537841][    T1] EFI services will not be available.
[    0.555524][    T1] smp: Bringing up secondary CPUs ...
[    0.597593][    T0] Detected PIPT I-cache on CPU1
[    0.600596][    T0] CPU1: Booted secondary processor 0x0000000001 [0x411fd070]
[    0.629957][    T1] smp: Brought up 1 node, 2 CPUs
[    0.630532][    T1] SMP: Total of 2 processors activated.
[    0.630834][    T1] CPU features: detected: 32-bit EL0 Support
[    0.631142][    T1] CPU features: detected: CRC32 instructions
[    0.631440][    T1] CPU features: detected: 32-bit EL1 Support
[    0.668944][    T9] Callback from call_rcu_tasks() invoked.
[    1.657683][    T1] CPU: All CPU(s) started at EL2
[    1.661599][   T14] alternatives: patching kernel code
[    1.782575][    T1] devtmpfs: initialized
[    2.440333][    T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    2.442048][    T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear)
[    2.859880][    T1] DMI not present or invalid.
[    2.913240][    T1] NET: Registered protocol family 16
[    3.053522][    T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[    3.058088][    T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    3.069973][    T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    3.074745][    T1] audit: initializing netlink subsys (disabled)
[    3.087893][   T33] audit: type=2000 audit(2.820:1): state=initialized audit_enabled=0 res=1
[    3.298691][    T1] thermal_sys: Registered thermal governor 'step_wise'
[    3.299070][    T1] thermal_sys: Registered thermal governor 'power_allocator'
[    3.306275][    T1] cpuidle: using governor menu
[    3.307646][    T1] NET: Registered protocol family 42
[    3.343181][    T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    3.347289][    T1] ASID allocator initialised with 65536 entries
[    3.358404][    T1] Serial: AMBA PL011 UART driver
[    4.101979][    T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1
[    4.228899][    T1] printk: console [ttyAMA0] enabled
[   16.868289][    T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[   16.869116][    T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[   16.869551][    T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[   16.870272][    T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[   17.246694][    T1] cryptd: max_cpu_qlen set to 1000
[   18.041822][    T1] raid6: neonx8   gen()   768 MB/s
[   18.226591][    T1] raid6: neonx8   xor()   372 MB/s
[   18.409837][    T1] raid6: neonx4   gen()   826 MB/s
[   18.595433][    T1] raid6: neonx4   xor()   570 MB/s
[   18.776202][    T1] raid6: neonx2   gen()   995 MB/s
[   18.957208][    T1] raid6: neonx2   xor()   483 MB/s
[   19.140816][    T1] raid6: neonx1   gen()   629 MB/s
[   19.322327][    T1] raid6: neonx1   xor()   334 MB/s
[   19.505194][    T1] raid6: int64x8  gen()   307 MB/s
[   19.689763][    T1] raid6: int64x8  xor()   222 MB/s
[   19.870135][    T1] raid6: int64x4  gen()   524 MB/s
[   20.053937][    T1] raid6: int64x4  xor()   337 MB/s
[   20.236603][    T1] raid6: int64x2  gen()   509 MB/s
[   20.421693][    T1] raid6: int64x2  xor()   343 MB/s
[   20.603660][    T1] raid6: int64x1  gen()   413 MB/s
[   20.784027][    T1] raid6: int64x1  xor()   266 MB/s
[   20.785055][    T1] raid6: using algorithm neonx2 gen() 995 MB/s
[   20.785522][    T1] raid6: .... xor() 483 MB/s, rmw enabled
[   20.786251][    T1] raid6: using neon recovery algorithm
[   20.820064][    T1] ACPI: Interpreter disabled.
[   20.915223][    T1] iommu: Default domain type: Translated 
[   20.933660][    T1] vgaarb: loaded
[   21.021915][    T1] SCSI subsystem initialized
[   21.145526][    T1] usbcore: registered new interface driver usbfs
[   21.161023][    T1] usbcore: registered new interface driver hub
[   21.172105][    T1] usbcore: registered new device driver usb
[   21.278516][    T1] pps_core: LinuxPPS API ver. 1 registered
[   21.279225][    T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[   21.299708][    T1] PTP clock support registered
[   21.320000][    T1] EDAC MC: Ver: 3.0.0
[   21.504287][    T1] Advanced Linux Sound Architecture Driver Initialized.
[   21.625336][    T1] Bluetooth: Core ver 2.22
[   21.629408][    T1] NET: Registered protocol family 31
[   21.629912][    T1] Bluetooth: HCI device and connection manager initialized
[   21.631284][    T1] Bluetooth: HCI socket layer initialized
[   21.632061][    T1] Bluetooth: L2CAP socket layer initialized
[   21.635491][    T1] Bluetooth: SCO socket layer initialized
[   21.637495][    T1] NET: Registered protocol family 8
[   21.638022][    T1] NET: Registered protocol family 20
[   21.643477][    T1] NetLabel: Initializing
[   21.645139][    T1] NetLabel:  domain hash size = 128
[   21.645583][    T1] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[   21.655713][    T1] NetLabel:  unlabeled traffic allowed by default
[   21.680595][    T1] nfc: nfc_init: NFC Core ver 0.1
[   21.692470][    T1] NET: Registered protocol family 39
[   21.739962][    T1] clocksource: Switched to clocksource arch_sys_counter
[   28.315945][    T1] VFS: Disk quotas dquot_6.6.0
[   28.320959][    T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[   28.338098][    T1] FS-Cache: Loaded
[   28.366381][    T1] CacheFiles: Loaded
[   28.392461][    T1] TOMOYO: 2.6.0
[   28.394186][    T1] Mandatory Access Control activated.
[   28.413547][    T1] pnp: PnP ACPI: disabled
[   29.806531][    T1] NET: Registered protocol family 2
[   29.885598][    T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear)
[   29.890662][    T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[   29.912732][    T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear)
[   29.927326][    T1] TCP: Hash tables configured (established 16384 bind 16384)
[   29.945845][    T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear)
[   29.957565][    T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear)
[   29.964757][    T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear)
[   29.981892][    T1] NET: Registered protocol family 1
[   30.013914][    T1] RPC: Registered named UNIX socket transport module.
[   30.016153][    T1] RPC: Registered udp transport module.
[   30.017571][    T1] RPC: Registered tcp transport module.
[   30.019779][    T1] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   30.066010][    T1] NET: Registered protocol family 44
[   30.068364][    T1] PCI: CLS 0 bytes, default 64
[   30.215066][    T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available
[   30.234099][    T1] kvm [1]: Guests without required CPU erratum workarounds can deadlock system!
[   30.234099][    T1] Only trusted guests should be used on this system.
[   30.235841][    T1] kvm [1]: IPA Size Limit: 44 bits
[   30.540276][    T1] kvm [1]: vgic interrupt IRQ9
[   30.546235][    T1] kvm [1]: Hyp mode initialized successfully
[   31.337428][    T1] Initialise system trusted keyrings
[   31.366853][    T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0
[   32.282917][    T1] zbud: loaded
[   32.457164][    T1] DLM installed
[   32.599919][    T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[   32.765982][    T1] NFS: Registering the id_resolver key type
[   32.768170][    T1] Key type id_resolver registered
[   32.771193][    T1] Key type id_legacy registered
[   32.782482][    T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[   32.801104][    T1] fuse: init (API version 7.33)
[   32.874568][    T1] 9p: Installing v9fs 9p2000 file system support
[   33.004828][    T1] NET: Registered protocol family 38
[   33.016243][    T1] xor: measuring software checksum speed
[   33.036306][    T1]    8regs           :   593 MB/sec
[   33.053083][    T1]    32regs          :  1005 MB/sec
[   33.069817][    T1]    arm64_neon      :   681 MB/sec
[   33.070579][    T1] xor: using function: 32regs (1005 MB/sec)
[   33.072265][    T1] async_tx: api initialized (async)
[   33.072727][    T1] Key type asymmetric registered
[   33.073231][    T1] Asymmetric key parser 'x509' registered
[   33.073726][    T1] Asymmetric key parser 'pkcs8' registered
[   33.074024][    T1] Key type pkcs7_test registered
[   33.074284][    T1] Asymmetric key parser 'tpm_parser' registered
[   33.077238][    T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244)
[   33.086837][    T1] io scheduler mq-deadline registered
[   33.087664][    T1] io scheduler kyber registered
[   33.105394][    T1] io scheduler bfq registered
[   33.221977][    T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered
[   33.338389][    T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges:
[   33.348342][    T1] pci-host-generic 4010000000.pcie:       IO 0x003eff0000..0x003effffff -> 0x0000000000
[   33.354135][    T1] pci-host-generic 4010000000.pcie:      MEM 0x0010000000..0x003efeffff -> 0x0010000000
[   33.357395][    T1] pci-host-generic 4010000000.pcie:      MEM 0x8000000000..0xffffffffff -> 0x8000000000
[   33.363481][    T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits
[   33.385485][    T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff]
[   33.398429][    T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00
[   33.401238][    T1] pci_bus 0000:00: root bus resource [bus 00-ff]
[   33.403548][    T1] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[   33.405637][    T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff]
[   33.408087][    T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff]
[   33.415470][    T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000
[   33.436814][    T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00
[   33.438704][    T1] pci 0000:00:01.0: reg 0x10: [io  0x0000-0x001f]
[   33.442568][    T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref]
[   33.457638][    T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000
[   33.461463][    T1] pci 0000:00:02.0: reg 0x10: [io  0x0000-0x001f]
[   33.462212][    T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff]
[   33.463263][    T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref]
[   33.463991][    T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref]
[   33.477339][    T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000
[   33.478515][    T1] pci 0000:00:03.0: reg 0x10: [io  0x0000-0x007f]
[   33.481936][    T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff]
[   33.483116][    T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref]
[   33.506995][    T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref]
[   33.508545][    T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref]
[   33.511316][    T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref]
[   33.512309][    T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref]
[   33.513163][    T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff]
[   33.513724][    T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff]
[   33.514284][    T1] pci 0000:00:03.0: BAR 0: assigned [io  0x1000-0x107f]
[   33.514856][    T1] pci 0000:00:01.0: BAR 0: assigned [io  0x1080-0x109f]
[   33.516441][    T1] pci 0000:00:02.0: BAR 0: assigned [io  0x10a0-0x10bf]
[   33.560679][    T1] usbcore: registered new interface driver udlfb
[   33.628026][    T1] uvesafb: failed to execute /sbin/v86d
[   33.632547][    T1] uvesafb: make sure that the v86d helper is installed and executable
[   33.633749][    T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2)
[   33.634681][    T1] uvesafb: vbe_init() failed with -22
[   33.637858][    T1] uvesafb: probe of uvesafb.0 failed with error -22
[   33.650991][    T1] IPMI message handler: version 39.2
[   33.664337][    T1] ipmi device interface
[   33.681271][    T1] ipmi_si: IPMI System Interface driver
[   33.734294][    T1] ipmi_si: Unable to find any System Interface(s)
[   33.786192][    T1] EINJ: ACPI disabled.
[   34.042815][    T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003)
[   34.065177][    T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003)
[   34.082366][    T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003)
[   41.184873][    T1] N_HDLC line discipline registered with maxframe=4096
[   41.191309][    T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   41.534480][    T1] Cyclades driver 2.6
[   41.556864][    T1] Initializing Nozomi driver 2.1d
[   41.585404][    T1] RocketPort device driver module, version 2.09, 12-June-2003
[   41.590701][    T1] No rocketport ports found; unloading driver
[   41.737591][ T2292] random: fast init done
[   41.765178][ T2292] random: crng init done
[   41.925916][    T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[   42.042043][    T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
[   42.656346][    T1] Console: switching to colour frame buffer device 128x48
[   42.714440][    T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device
[   42.722078][    T1] usbcore: registered new interface driver udl
[   42.930364][   T15] cacheinfo: Unable to detect cache hierarchy for CPU 0
[   43.731739][    T1] brd: module loaded
[   45.294279][    T1] loop: module loaded
[   46.419861][    C1] ------------[ cut here ]------------
[   46.420981][    C1] WARNING: CPU: 1 PID: 13 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x26c/0x2f4
[   46.423199][    C1] Modules linked in:
[   46.424127][    C1] CPU: 1 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 #0
[   46.427127][    C1] Hardware name: linux,dummy-virt (DT)
[   46.428130][    C1] pstate: 20000085 (nzCv daIf -PAN -UAO -TCO BTYPE=--)
[   46.428602][    C1] pc : vkms_vblank_simulate+0x26c/0x2f4
[   46.429069][    C1] lr : vkms_vblank_simulate+0x90/0x2f4
[   46.429442][    C1] sp : ffff00006a6bd360
[   46.430939][    C1] x29: ffff00006a6bd360 x28: ffff00000ae45e58 
[   46.431632][    C1] x27: dfff800000000000 x26: ffff00006a6a8540 
[   46.435234][    C1] x25: 1fffe0000d4d50b1 x24: 1fffe0000d4d50aa 
[   46.435943][    C1] x23: ffff00000ae44d30 x22: 0000000000fe4c00 
[   46.436470][    C1] x21: ffff00006a6a8540 x20: ffff00000ae44e58 
[   46.437003][    C1] x19: ffff00000ae45e58 x18: ffff00006a6a1b48 
[   46.437505][    C1] x17: 00000000000013e8 x16: 0000000000000003 
[   46.438016][    C1] x15: ffff8000197bf810 x14: 1fffe0000d4d7a22 
[   46.438542][    C1] x13: 0000000000000001 x12: 0000000000000033 
[   46.440522][    C1] x11: 1fffe000015ca11e x10: 0000000000000007 
[   46.444149][    C1] x9 : 1fffe000015ca126 x8 : ffff800017d14c00 
[   46.445115][    C1] x7 : 00000000f1f1f1f1 x6 : dfff800000000000 
[   46.445626][    C1] x5 : 7fffffffffffffff x4 : 0000000a6bb25c10 
[   46.446151][    C1] x3 : 0000000a6cb0a810 x2 : 0000000a6bb25c10 
[   46.447152][    C1] x1 : 0000000a6cb0a810 x0 : 0000000000000002 
[   46.448146][    C1] Call trace:
[   46.448535][    C1]  vkms_vblank_simulate+0x26c/0x2f4
[   46.449099][    C1]  __hrtimer_run_queues+0x590/0xe40
[   46.449472][    C1]  hrtimer_interrupt+0x2d4/0x810
[   46.449928][    C1]  arch_timer_handler_phys+0x4c/0x70
[   46.450331][    C1]  handle_percpu_devid_irq+0x19c/0x330
[   46.450689][    C1]  __handle_domain_irq+0x11c/0x1f0
[   46.451025][    C1]  gic_handle_irq+0x5c/0x1b0
[   46.451361][    C1]  el1_irq+0xb4/0x180
[   46.451722][    C1]  _raw_spin_unlock_irq+0x80/0x15c
[   46.452066][    C1]  finish_task_switch.isra.0+0x1b0/0x690
[   46.452436][    C1]  __schedule+0x814/0x1ac0
[   46.452751][    C1]  schedule+0xac/0x230
[   46.453044][    C1]  schedule_timeout+0x104/0x1f0
[   46.453386][    C1]  rcu_gp_kthread+0x8ec/0x2e9c
[   46.453717][    C1]  kthread+0x320/0x3bc
[   46.454032][    C1]  ret_from_fork+0x10/0x3c
[   46.455050][    C1] Kernel panic - not syncing: panic_on_warn set ...
[   46.455826][    C1] CPU: 1 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 #0
[   46.456287][    C1] Hardware name: linux,dummy-virt (DT)
[   46.456680][    C1] Call trace:
[   46.456964][    C1]  dump_backtrace+0x0/0x3e0
[   46.457329][    C1]  show_stack+0x18/0x70
[   46.457671][    C1]  dump_stack+0x120/0x1a8
[   46.458006][    C1]  panic+0x31c/0x5c4
[   46.458330][    C1]  __warn+0x198/0x2f0
[   46.458663][    C1]  report_bug+0x154/0x210
[   46.459131][    C1]  bug_handler+0x38/0x90
[   46.459462][    C1]  brk_handler+0x114/0x230
[   46.459848][    C1]  do_debug_exception+0xc4/0x3b0
[   46.460194][    C1]  el1_dbg+0x60/0x80
[   46.460524][    C1]  el1_sync_handler+0x9c/0xd0
[   46.460864][    C1]  el1_sync+0x70/0x100
[   46.461187][    C1]  vkms_vblank_simulate+0x26c/0x2f4
[   46.462044][    C1]  __hrtimer_run_queues+0x590/0xe40
[   46.462453][    C1]  hrtimer_interrupt+0x2d4/0x810
[   46.462777][    C1]  arch_timer_handler_phys+0x4c/0x70
[   46.463131][    C1]  handle_percpu_devid_irq+0x19c/0x330
[   46.463553][    C1]  __handle_domain_irq+0x11c/0x1f0
[   46.463928][    C1]  gic_handle_irq+0x5c/0x1b0
[   46.464245][    C1]  el1_irq+0xb4/0x180
[   46.464591][    C1]  _raw_spin_unlock_irq+0x80/0x15c
[   46.464920][    C1]  finish_task_switch.isra.0+0x1b0/0x690
[   46.465240][    C1]  __schedule+0x814/0x1ac0
[   46.465626][    C1]  schedule+0xac/0x230
[   46.465955][    C1]  schedule_timeout+0x104/0x1f0
[   46.466287][    C1]  rcu_gp_kthread+0x8ec/0x2e9c
[   46.466643][    C1]  kthread+0x320/0x3bc
[   46.466963][    C1]  ret_from_fork+0x10/0x3c
[   46.468964][    C1] SMP: stopping secondary CPUs
[   46.471162][    C1] Dumping ftrace buffer:
[   46.472856][    C1]    (ftrace buffer empty)
[   46.474807][    C1] Kernel Offset: disabled
[   46.475692][    C1] CPU features: 0x00240022,61002082
[   46.477489][    C1] Memory Limit: none
[   46.479938][    C1] Rebooting in 1 seconds..