[ 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 [ 0.000121][ T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.027359][ T0] Console: colour dummy device 80x25 [ 0.030063][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.030321][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.030501][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.030702][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.030874][ T0] ... CLASSHASH_SIZE: 4096 [ 0.031044][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.031214][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.031385][ T0] ... CHAINHASH_SIZE: 32768 [ 0.031555][ T0] memory used by lock dependency info: 6365 kB [ 0.031738][ T0] memory used for stack traces: 4224 kB [ 0.031906][ T0] per task-struct memory footprint: 1920 bytes [ 0.038084][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.038781][ T0] pid_max: default: 32768 minimum: 301 [ 0.044834][ T0] LSM: Security Framework initializing [ 0.047284][ T0] Yama: becoming mindful. [ 0.052704][ T0] TOMOYO Linux initialized [ 0.054945][ T0] SELinux: Initializing. [ 0.059796][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.060229][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.271165][ T1] Running RCU-tasks wait API self tests [ 0.440867][ T1] rcu: Hierarchical SRCU implementation. [ 0.443968][ T10] Callback from call_rcu_tasks_trace() invoked. [ 0.545403][ T1] EFI services will not be available. [ 0.565332][ T1] smp: Bringing up secondary CPUs ... [ 0.610657][ T0] Detected PIPT I-cache on CPU1 [ 0.614059][ T0] CPU1: Booted secondary processor 0x0000000001 [0x411fd070] [ 0.644123][ T1] smp: Brought up 1 node, 2 CPUs [ 0.644762][ T1] SMP: Total of 2 processors activated. [ 0.645101][ T1] CPU features: detected: 32-bit EL0 Support [ 0.647714][ T1] CPU features: detected: CRC32 instructions [ 0.648030][ T1] CPU features: detected: 32-bit EL1 Support [ 0.671406][ T9] Callback from call_rcu_tasks() invoked. [ 1.737024][ T1] CPU: All CPU(s) started at EL2 [ 1.739855][ T14] alternatives: patching kernel code [ 1.838084][ T1] devtmpfs: initialized [ 2.460778][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.463064][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 2.842255][ T1] DMI not present or invalid. [ 2.895562][ T1] NET: Registered protocol family 16 [ 3.083868][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 3.092303][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 3.105558][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 3.111172][ T1] audit: initializing netlink subsys (disabled) [ 3.128397][ T34] audit: type=2000 audit(2.870:1): state=initialized audit_enabled=0 res=1 [ 3.367059][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.367476][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 3.386643][ T1] cpuidle: using governor menu [ 3.388345][ T1] NET: Registered protocol family 42 [ 3.429228][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 3.436789][ T1] ASID allocator initialised with 65536 entries [ 3.450703][ T1] Serial: AMBA PL011 UART driver [ 4.186117][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1 [ 4.236315][ T1] printk: console [ttyAMA0] enabled [ 15.795035][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 15.801035][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 15.802167][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 15.804249][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 16.167321][ T1] cryptd: max_cpu_qlen set to 1000 [ 16.932166][ T1] raid6: neonx8 gen() 782 MB/s [ 17.113152][ T1] raid6: neonx8 xor() 353 MB/s [ 17.290961][ T1] raid6: neonx4 gen() 964 MB/s [ 17.470418][ T1] raid6: neonx4 xor() 601 MB/s [ 17.649180][ T1] raid6: neonx2 gen() 1191 MB/s [ 17.830807][ T1] raid6: neonx2 xor() 471 MB/s [ 18.013288][ T1] raid6: neonx1 gen() 703 MB/s [ 18.192617][ T1] raid6: neonx1 xor() 451 MB/s [ 18.374326][ T1] raid6: int64x8 gen() 498 MB/s [ 18.560410][ T1] raid6: int64x8 xor() 254 MB/s [ 18.739938][ T1] raid6: int64x4 gen() 549 MB/s [ 18.922492][ T1] raid6: int64x4 xor() 324 MB/s [ 19.104478][ T1] raid6: int64x2 gen() 525 MB/s [ 19.287511][ T1] raid6: int64x2 xor() 351 MB/s [ 19.476023][ T1] raid6: int64x1 gen() 429 MB/s [ 19.658806][ T1] raid6: int64x1 xor() 271 MB/s [ 19.661025][ T1] raid6: using algorithm neonx2 gen() 1191 MB/s [ 19.661629][ T1] raid6: .... xor() 471 MB/s, rmw enabled [ 19.662360][ T1] raid6: using neon recovery algorithm [ 19.710214][ T1] ACPI: Interpreter disabled. [ 19.797054][ T1] iommu: Default domain type: Translated [ 19.814799][ T1] vgaarb: loaded [ 19.891861][ T1] SCSI subsystem initialized [ 20.023542][ T1] usbcore: registered new interface driver usbfs [ 20.037533][ T1] usbcore: registered new interface driver hub [ 20.045096][ T1] usbcore: registered new device driver usb [ 20.115802][ T1] pps_core: LinuxPPS API ver. 1 registered [ 20.116469][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 20.139237][ T1] PTP clock support registered [ 20.160487][ T1] EDAC MC: Ver: 3.0.0 [ 20.310025][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 20.410573][ T1] Bluetooth: Core ver 2.22 [ 20.415156][ T1] NET: Registered protocol family 31 [ 20.415600][ T1] Bluetooth: HCI device and connection manager initialized [ 20.416709][ T1] Bluetooth: HCI socket layer initialized [ 20.417629][ T1] Bluetooth: L2CAP socket layer initialized [ 20.419333][ T1] Bluetooth: SCO socket layer initialized [ 20.421143][ T1] NET: Registered protocol family 8 [ 20.421616][ T1] NET: Registered protocol family 20 [ 20.428838][ T1] NetLabel: Initializing [ 20.429374][ T1] NetLabel: domain hash size = 128 [ 20.429761][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 20.473075][ T1] NetLabel: unlabeled traffic allowed by default [ 20.516688][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 20.526386][ T1] NET: Registered protocol family 39 [ 20.564900][ T1] clocksource: Switched to clocksource arch_sys_counter [ 29.188332][ T1] VFS: Disk quotas dquot_6.6.0 [ 29.191876][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 29.211266][ T1] FS-Cache: Loaded [ 29.240772][ T1] CacheFiles: Loaded [ 29.267483][ T1] TOMOYO: 2.6.0 [ 29.268431][ T1] Mandatory Access Control activated. [ 29.288709][ T1] pnp: PnP ACPI: disabled [ 30.721171][ T1] NET: Registered protocol family 2 [ 30.802040][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear) [ 30.811515][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 30.831393][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear) [ 30.848246][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 30.865832][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 30.872608][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 30.878361][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 30.896712][ T1] NET: Registered protocol family 1 [ 30.931851][ T1] RPC: Registered named UNIX socket transport module. [ 30.933719][ T1] RPC: Registered udp transport module. [ 30.934173][ T1] RPC: Registered tcp transport module. [ 30.934627][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 30.986208][ T1] NET: Registered protocol family 44 [ 30.989429][ T1] PCI: CLS 0 bytes, default 64 [ 31.146015][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 31.166024][ T1] kvm [1]: Guests without required CPU erratum workarounds can deadlock system! [ 31.166024][ T1] Only trusted guests should be used on this system. [ 31.185737][ T1] kvm [1]: IPA Size Limit: 44 bits [ 31.465036][ T1] kvm [1]: vgic interrupt IRQ9 [ 31.471391][ T1] kvm [1]: Hyp mode initialized successfully [ 32.354738][ T1] Initialise system trusted keyrings [ 32.377041][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 33.245889][ T1] zbud: loaded [ 33.404798][ T1] DLM installed [ 33.517462][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 33.654331][ T1] NFS: Registering the id_resolver key type [ 33.656227][ T1] Key type id_resolver registered [ 33.656734][ T1] Key type id_legacy registered [ 33.664381][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 33.679997][ T1] fuse: init (API version 7.33) [ 33.746416][ T1] 9p: Installing v9fs 9p2000 file system support [ 33.891691][ T1] NET: Registered protocol family 38 [ 33.901798][ T1] xor: measuring software checksum speed [ 33.915797][ T1] 8regs : 1003 MB/sec [ 33.926953][ T1] 32regs : 1037 MB/sec [ 33.938232][ T1] arm64_neon : 1061 MB/sec [ 33.938841][ T1] xor: using function: arm64_neon (1061 MB/sec) [ 33.940257][ T1] async_tx: api initialized (async) [ 33.940775][ T1] Key type asymmetric registered [ 33.941392][ T1] Asymmetric key parser 'x509' registered [ 33.942026][ T1] Asymmetric key parser 'pkcs8' registered [ 33.942398][ T1] Key type pkcs7_test registered [ 33.943887][ T1] Asymmetric key parser 'tpm_parser' registered [ 33.946881][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 33.957388][ T1] io scheduler mq-deadline registered [ 33.959534][ T1] io scheduler kyber registered [ 33.973795][ T1] io scheduler bfq registered [ 34.076507][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 34.207646][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 34.211904][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 34.221295][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 34.222197][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 34.224956][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 34.240416][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 34.255646][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 34.256759][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 34.258537][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 34.261127][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 34.262015][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 34.270915][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 34.289704][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 34.291032][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 34.291970][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 34.302082][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 34.303559][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 34.304102][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 34.304830][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 34.305300][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 34.316480][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 34.317389][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 34.318029][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 34.318956][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 34.337876][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 34.339290][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 34.340323][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 34.341134][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 34.341894][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 34.342376][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 34.344421][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 34.345034][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 34.345600][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 34.367499][ T1] usbcore: registered new interface driver udlfb [ 34.438103][ T1] uvesafb: failed to execute /sbin/v86d [ 34.438915][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 34.439811][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 34.440665][ T1] uvesafb: vbe_init() failed with -22 [ 34.446982][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 34.459657][ T1] IPMI message handler: version 39.2 [ 34.472253][ T1] ipmi device interface [ 34.485585][ T1] ipmi_si: IPMI System Interface driver [ 34.538405][ T1] ipmi_si: Unable to find any System Interface(s) [ 34.590645][ T1] EINJ: ACPI disabled. [ 34.910893][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 34.946381][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 34.975779][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 42.329920][ T1] N_HDLC line discipline registered with maxframe=4096 [ 42.336811][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 42.655993][ T1] Cyclades driver 2.6 [ 42.677003][ T1] Initializing Nozomi driver 2.1d [ 42.718102][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 42.720584][ T1] No rocketport ports found; unloading driver [ 42.885681][ T2291] random: fast init done [ 42.942258][ T2291] random: crng init done [ 43.068308][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 43.198320][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 43.752426][ T1] Console: switching to colour frame buffer device 128x48 [ 43.812035][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 43.819355][ T1] usbcore: registered new interface driver udl [ 44.025334][ T15] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 44.876891][ T1] brd: module loaded [ 46.545317][ T1] loop: module loaded [ 47.764669][ C0] ------------[ cut here ]------------ [ 47.765555][ C0] WARNING: CPU: 0 PID: 13 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x26c/0x2f4 [ 47.766070][ C0] Modules linked in: [ 47.766752][ C0] CPU: 0 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 #0 [ 47.767365][ C0] Hardware name: linux,dummy-virt (DT) [ 47.767958][ C0] pstate: 20000085 (nzCv daIf -PAN -UAO -TCO BTYPE=--) [ 47.768308][ C0] pc : vkms_vblank_simulate+0x26c/0x2f4 [ 47.768659][ C0] lr : vkms_vblank_simulate+0x90/0x2f4 [ 47.768972][ C0] sp : ffff00006a694360 [ 47.769277][ C0] x29: ffff00006a694360 x28: ffff00000ae45e58 [ 47.769804][ C0] x27: dfff800000000000 x26: ffff00006a67f540 [ 47.770246][ C0] x25: 1fffe0000d4cfeb1 x24: 1fffe0000d4cfeaa [ 47.770680][ C0] x23: ffff00000ae44d30 x22: 0000000000fe4c00 [ 47.771110][ C0] x21: ffff00006a67f540 x20: ffff00000ae44e58 [ 47.771564][ C0] x19: ffff00000ae45e58 x18: ffff00006a678b48 [ 47.771986][ C0] x17: 00000000000013e8 x16: 0000000000000003 [ 47.772421][ C0] x15: ffff8000197bf810 x14: 1fffe0000d4d2822 [ 47.772852][ C0] x13: 0000000000000001 x12: 0000000000000033 [ 47.773305][ C0] x11: 1fffe000015ca11e x10: 0000000000000007 [ 47.773777][ C0] x9 : 1fffe000015ca126 x8 : ffff800017d14c00 [ 47.774312][ C0] x7 : 00000000f1f1f1f1 x6 : dfff800000000000 [ 47.774817][ C0] x5 : 7fffffffffffffff x4 : 0000000ac71eaf90 [ 47.776382][ C0] x3 : 0000000ac81cfb90 x2 : 0000000ac71eaf90 [ 47.776928][ C0] x1 : 0000000ac81cfb90 x0 : 0000000000000002 [ 47.777786][ C0] Call trace: [ 47.778827][ C0] vkms_vblank_simulate+0x26c/0x2f4 [ 47.780248][ C0] __hrtimer_run_queues+0x590/0xe40 [ 47.780847][ C0] hrtimer_interrupt+0x2d4/0x810 [ 47.781135][ C0] arch_timer_handler_phys+0x4c/0x70 [ 47.781465][ C0] handle_percpu_devid_irq+0x19c/0x330 [ 47.781766][ C0] __handle_domain_irq+0x11c/0x1f0 [ 47.782042][ C0] gic_handle_irq+0x5c/0x1b0 [ 47.782327][ C0] el1_irq+0xb4/0x180 [ 47.782593][ C0] _raw_spin_unlock_irq+0x80/0x15c [ 47.783044][ C0] finish_task_switch.isra.0+0x1b0/0x690 [ 47.783370][ C0] __schedule+0x814/0x1ac0 [ 47.783649][ C0] schedule+0xac/0x230 [ 47.783911][ C0] rcu_gp_kthread+0x16cc/0x2e9c [ 47.784195][ C0] kthread+0x320/0x3bc [ 47.784462][ C0] ret_from_fork+0x10/0x3c [ 47.785190][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 47.785791][ C0] CPU: 0 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc2-syzkaller-00338-gf78d76e72a46 #0 [ 47.786171][ C0] Hardware name: linux,dummy-virt (DT) [ 47.786673][ C0] Call trace: [ 47.787070][ C0] dump_backtrace+0x0/0x3e0 [ 47.787633][ C0] show_stack+0x18/0x70 [ 47.787906][ C0] dump_stack+0x120/0x1a8 [ 47.788167][ C0] panic+0x31c/0x5c4 [ 47.788448][ C0] __warn+0x198/0x2f0 [ 47.788701][ C0] report_bug+0x154/0x210 [ 47.788976][ C0] bug_handler+0x38/0x90 [ 47.789238][ C0] brk_handler+0x114/0x230 [ 47.790045][ C0] do_debug_exception+0xc4/0x3b0 [ 47.790623][ C0] el1_dbg+0x60/0x80 [ 47.790865][ C0] el1_sync_handler+0x9c/0xd0 [ 47.791080][ C0] el1_sync+0x70/0x100 [ 47.791339][ C0] vkms_vblank_simulate+0x26c/0x2f4 [ 47.791579][ C0] __hrtimer_run_queues+0x590/0xe40 [ 47.791831][ C0] hrtimer_interrupt+0x2d4/0x810 [ 47.792056][ C0] arch_timer_handler_phys+0x4c/0x70 [ 47.792311][ C0] handle_percpu_devid_irq+0x19c/0x330 [ 47.792519][ C0] __handle_domain_irq+0x11c/0x1f0 [ 47.792783][ C0] gic_handle_irq+0x5c/0x1b0 [ 47.793051][ C0] el1_irq+0xb4/0x180 [ 47.793293][ C0] _raw_spin_unlock_irq+0x80/0x15c [ 47.793591][ C0] finish_task_switch.isra.0+0x1b0/0x690 [ 47.793853][ C0] __schedule+0x814/0x1ac0 [ 47.794104][ C0] schedule+0xac/0x230 [ 47.794406][ C0] rcu_gp_kthread+0x16cc/0x2e9c [ 47.794677][ C0] kthread+0x320/0x3bc [ 47.794914][ C0] ret_from_fork+0x10/0x3c [ 47.796092][ C0] SMP: stopping secondary CPUs [ 47.797736][ C0] Dumping ftrace buffer: [ 47.799063][ C0] (ftrace buffer empty) [ 47.799967][ C0] Kernel Offset: disabled [ 47.800317][ C0] CPU features: 0x00240022,61002082 [ 47.801045][ C0] Memory Limit: none [ 47.801875][ C0] Rebooting in 1 seconds..