failed to run ["ssh" "-p" "33700" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@localhost" "pwd"]: exit status 255 Connection timed out during banner exchange Connection to 127.0.0.1 port 33700 timed out [ 0.000000][ T0] Booting Linux on physical CPU 0x0000000000 [0x000f0510] [ 0.000000][ T0] Linux version 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa (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] 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 0xbfbf9280-0xbfbfbfff] [ 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 0x00000000bb800000 [ 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 24 pages/cpu s59080 r8192 d31032 u98304 [ 0.000000][ T0] Detected PIPT I-cache on CPU0 [ 0.000000][ T0] CPU features: detected: Virtualization Host Extensions [ 0.000000][ T0] CPU features: detected: Kernel page table isolation (KPTI) [ 0.000000][ T0] CPU features: detected: Spectre-v2 [ 0.000000][ T0] CPU features: detected: Spectre-v4 [ 0.000000][ T0] CPU features: detected: Address authentication (architected algorithm) [ 0.000000][ T0] CPU features: detected: Branch Target Identification [ 0.000000][ T0] CPU features: detected: Memory Tagging Extension [ 0.000000][ T0] alternatives: patching kernel code [ 0.000000][ T0] kasan: KernelAddressSanitizer initialized [ 0.000000][ T0] Built 1 zonelists, mobility grouping on. Total pages: 516096 [ 0.000000][ T0] Policy zone: DMA [ 0.000000][ T0] Kernel command line: root=/dev/vda console=ttyAMA0 [ 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: 1969696K/2097152K available (23424K kernel code, 2238K rwdata, 15028K rodata, 960K init, 1443K bss, 94688K reserved, 32768K cma-reserved) [ 0.000000][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000][ T0] rcu: Preemptible hierarchical RCU implementation. [ 0.000000][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 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] kfence: initialized - using 2097152 bytes for 255 objects at 0x(____ptrval____)-0x(____ptrval____) [ 0.000000][ T0] random: crng done (trusting CPU's manufacturer) [ 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 [ 0.000144][ T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.015069][ T0] Console: colour dummy device 80x25 [ 0.022960][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.024291][ T0] pid_max: default: 32768 minimum: 301 [ 0.033361][ T0] LSM: Security Framework initializing [ 0.037128][ T0] Yama: becoming mindful. [ 0.040938][ T0] TOMOYO Linux initialized [ 0.043839][ T0] Smack: Initializing. [ 0.044067][ T0] Smack: Netfilter enabled. [ 0.044279][ T0] Smack: IPv6 Netfilter enabled. [ 0.048514][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.049138][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.222824][ T1] rcu: Hierarchical SRCU implementation. [ 0.245307][ T1] EFI services will not be available. [ 0.256870][ T1] smp: Bringing up secondary CPUs ... [ 0.287772][ T0] Detected PIPT I-cache on CPU1 [ 0.294963][ T0] CPU1: Booted secondary processor 0x0000000001 [0x000f0510] [ 0.313699][ T1] smp: Brought up 1 node, 2 CPUs [ 0.314319][ T1] SMP: Total of 2 processors activated. [ 0.315179][ T1] CPU features: detected: Privileged Access Never [ 0.315438][ T1] CPU features: detected: LSE atomic instructions [ 0.315663][ T1] CPU features: detected: 32-bit EL0 Support [ 0.315964][ T1] CPU features: detected: Common not Private translations [ 0.316199][ T1] CPU features: detected: Data cache clean to Point of Persistence [ 0.316425][ T1] CPU features: detected: Scalable Vector Extension [ 0.316747][ T1] CPU features: detected: CRC32 instructions [ 0.316984][ T1] CPU features: detected: Speculation barrier (SB) [ 0.317217][ T1] CPU features: detected: Generic authentication (architected algorithm) [ 0.317499][ T1] CPU features: detected: Data cache clean to Point of Deep Persistence [ 0.317782][ T1] CPU features: detected: Random Number Generator [ 0.319150][ T1] CPU features: detected: 32-bit EL1 Support [ 0.319428][ T1] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.908417][ T1] SVE: maximum available vector length 256 bytes per vector [ 0.913361][ T1] SVE: default vector length 64 bytes per vector [ 1.495140][ T1] CPU: All CPU(s) started at EL2 [ 1.694999][ T1] devtmpfs: initialized [ 2.007376][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.009321][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 2.310138][ T1] DMI not present or invalid. [ 2.359702][ T1] NET: Registered protocol family 16 [ 2.500583][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 2.509650][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 2.539804][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 2.544500][ T1] audit: initializing netlink subsys (disabled) [ 2.560261][ T35] audit: type=2000 audit(2.270:1): state=initialized audit_enabled=0 res=1 [ 2.793770][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.794063][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 2.801044][ T1] cpuidle: using governor menu [ 2.813646][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 2.816467][ T1] ASID allocator initialised with 32768 entries [ 2.844254][ T1] Serial: AMBA PL011 UART driver [ 3.450203][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1 [ 3.554298][ T1] printk: console [ttyAMA0] enabled [ 10.667985][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 10.669123][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 10.669947][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.673002][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 11.074717][ T1] cryptd: max_cpu_qlen set to 1000 [ 11.924376][ T1] raid6: neonx8 gen() 118 MB/s [ 12.103793][ T1] raid6: neonx8 xor() 62 MB/s [ 12.280958][ T1] raid6: neonx4 gen() 112 MB/s [ 12.457506][ T1] raid6: neonx4 xor() 64 MB/s [ 12.634948][ T1] raid6: neonx2 gen() 117 MB/s [ 12.813047][ T1] raid6: neonx2 xor() 65 MB/s [ 12.991201][ T1] raid6: neonx1 gen() 109 MB/s [ 13.169704][ T1] raid6: neonx1 xor() 62 MB/s [ 13.348553][ T1] raid6: int64x8 gen() 72 MB/s [ 13.526019][ T1] raid6: int64x8 xor() 39 MB/s [ 13.703389][ T1] raid6: int64x4 gen() 77 MB/s [ 13.879577][ T1] raid6: int64x4 xor() 41 MB/s [ 14.057282][ T1] raid6: int64x2 gen() 70 MB/s [ 14.234512][ T1] raid6: int64x2 xor() 40 MB/s [ 14.412369][ T1] raid6: int64x1 gen() 64 MB/s [ 14.591217][ T1] raid6: int64x1 xor() 38 MB/s [ 14.592074][ T1] raid6: using algorithm neonx8 gen() 118 MB/s [ 14.592838][ T1] raid6: .... xor() 62 MB/s, rmw enabled [ 14.595054][ T1] raid6: using neon recovery algorithm [ 14.633783][ T1] ACPI: Interpreter disabled. [ 14.738296][ T1] iommu: Default domain type: Translated [ 14.759291][ T1] vgaarb: loaded [ 14.839114][ T1] SCSI subsystem initialized [ 14.883702][ T1] usbcore: registered new interface driver usbfs [ 14.905729][ T1] usbcore: registered new interface driver hub [ 14.917953][ T1] usbcore: registered new device driver usb [ 14.970516][ T1] pps_core: LinuxPPS API ver. 1 registered [ 14.971491][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 14.982912][ T1] PTP clock support registered [ 15.004713][ T1] EDAC MC: Ver: 3.0.0 [ 15.211020][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 15.328253][ T1] NetLabel: Initializing [ 15.329926][ T1] NetLabel: domain hash size = 128 [ 15.331663][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 15.343811][ T1] NetLabel: unlabeled traffic allowed by default [ 15.367526][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 15.382425][ T1] NET: Registered protocol family 39 [ 15.413030][ T1] clocksource: Switched to clocksource arch_sys_counter [ 15.465805][ T1] VFS: Disk quotas dquot_6.6.0 [ 15.469434][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 15.486245][ T1] FS-Cache: Loaded [ 15.511692][ T1] CacheFiles: Loaded [ 15.528239][ T1] TOMOYO: 2.6.0 [ 15.529675][ T1] Mandatory Access Control activated. [ 15.540483][ T1] pnp: PnP ACPI: disabled [ 16.585680][ T1] NET: Registered protocol family 2 [ 16.628495][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear) [ 16.631812][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 16.637604][ T1] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear) [ 16.641901][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 16.670895][ T1] MPTCP token hash table entries: 2048 (order: 3, 49152 bytes, linear) [ 16.675971][ T1] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 16.678248][ T1] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 16.694571][ T1] NET: Registered protocol family 1 [ 16.696687][ T1] NET: Registered protocol family 44 [ 16.697685][ T1] PCI: CLS 0 bytes, default 64 [ 16.828924][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 16.837236][ T1] kvm [1]: IPA Size Limit: 48 bits [ 16.846470][ T1] kvm [1]: vgic interrupt IRQ9 [ 16.857902][ T1] kvm [1]: VHE mode initialized successfully [ 17.494542][ T1] Initialise system trusted keyrings [ 17.506578][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 18.271929][ T1] zbud: loaded [ 18.478869][ T1] DLM installed [ 18.744894][ T1] fuse: init (API version 7.33) [ 18.965834][ T1] NET: Registered protocol family 38 [ 18.974887][ T1] xor: measuring software checksum speed [ 19.275168][ T1] 8regs : 34 MB/sec [ 19.465816][ T1] 32regs : 53 MB/sec [ 19.609037][ T1] arm64_neon : 72 MB/sec [ 19.609884][ T1] xor: using function: arm64_neon (72 MB/sec) [ 19.611913][ T1] async_tx: api initialized (async) [ 19.613653][ T1] Key type asymmetric registered [ 19.616498][ T1] Asymmetric key parser 'x509' registered [ 19.617355][ T1] Asymmetric key parser 'pkcs8' registered [ 19.618196][ T1] Key type pkcs7_test registered [ 19.618882][ T1] Asymmetric key parser 'tpm_parser' registered [ 19.624224][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 19.635397][ T1] io scheduler mq-deadline registered [ 19.636256][ T1] io scheduler kyber registered [ 19.648058][ T1] io scheduler bfq registered [ 19.808981][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 19.900055][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 19.903353][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 19.905246][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 19.907062][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 19.909020][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 19.911083][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 19.945996][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 19.947700][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 19.948937][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 19.950136][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 19.951240][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 19.960349][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 19.981694][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 19.986997][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 19.988528][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 20.005917][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 20.007191][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 20.008148][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 20.009313][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 20.010327][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 20.026678][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 20.027873][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 20.028843][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 20.029954][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 20.066303][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 20.067939][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 20.069305][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 20.070561][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 20.071776][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 20.073892][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 20.074937][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 20.075922][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 20.076960][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 20.114423][ T1] usbcore: registered new interface driver udlfb [ 20.151690][ T1] uvesafb: failed to execute /sbin/v86d [ 20.154343][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 20.157743][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 20.158907][ T1] uvesafb: vbe_init() failed with -22 [ 20.164971][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 20.169519][ T1] IPMI message handler: version 39.2 [ 20.174942][ T1] ipmi device interface [ 20.178443][ T1] ipmi_si: IPMI System Interface driver [ 20.218223][ T1] ipmi_si: Unable to find any System Interface(s) [ 20.256930][ T1] EINJ: ACPI disabled. [ 20.570548][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 20.629398][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 20.656400][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 27.167200][ T1] N_HDLC line discipline registered with maxframe=4096 [ 27.169713][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 27.415245][ T1] Cyclades driver 2.6 [ 27.428184][ T1] Initializing Nozomi driver 2.1d [ 27.441322][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 27.447332][ T1] No rocketport ports found; unloading driver [ 27.734762][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 27.834398][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 28.268043][ T1] Console: switching to colour frame buffer device 128x48 [ 28.381017][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 28.393230][ T1] usbcore: registered new interface driver udl [ 28.525669][ C1] ------------[ cut here ]------------ [ 28.527653][ C1] WARNING: CPU: 1 PID: 174 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.529102][ C1] Modules linked in: [ 28.529769][ C1] CPU: 1 PID: 174 Comm: kworker/u4:5 Not tainted 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 28.530711][ C1] Hardware name: linux,dummy-virt (DT) [ 28.533564][ C1] Workqueue: 0x0 (events_unbound) [ 28.539129][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.540287][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.540846][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.542765][ C1] sp : ffff80001000be30 [ 28.543427][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.544284][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 28.545193][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.546015][ C1] x23: 0000000000000080 x22: 00000006644b38c0 [ 28.546923][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 28.547856][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 28.548812][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.549795][ C1] x15: 000000d16a17823c x14: 00000000000003e1 [ 28.550820][ C1] x13: 0000000000000001 x12: 0000000000000040 [ 28.551835][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 28.553007][ C1] x9 : ffff8000127bbe78 x8 : 0000000663cbfd90 [ 28.554129][ C1] x7 : 7fffffffffffffff x6 : 0000000663cbfd90 [ 28.555186][ C1] x5 : 0000000663cbfd90 x4 : fdff000003ac5498 [ 28.556137][ C1] x3 : 0000000664ca4990 x2 : 0000000663cbfd90 [ 28.557058][ C1] x1 : 0000000664ca4990 x0 : 0000000000000002 [ 28.558871][ C1] Call trace: [ 28.561669][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.563387][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.564210][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.564974][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.565727][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.566532][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.567502][ C1] gic_handle_irq+0x50/0xd0 [ 28.568160][ T16] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 28.568229][ C1] el1_irq+0xb4/0x180 [ 28.569553][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.570354][ C1] __schedule+0x2dc/0x794 [ 28.571072][ C1] schedule+0x70/0x10c [ 28.571737][ C1] worker_thread+0xdc/0x434 [ 28.573147][ C1] kthread+0x174/0x180 [ 28.575092][ C1] ret_from_fork+0x10/0x34 [ 28.576335][ C1] ---[ end trace 725733a855eedd91 ]--- [ 28.579162][ C1] ------------[ cut here ]------------ [ 28.580995][ C1] WARNING: CPU: 1 PID: 174 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.583413][ C1] Modules linked in: [ 28.584335][ C1] CPU: 1 PID: 174 Comm: kworker/u4:5 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 28.585954][ C1] Hardware name: linux,dummy-virt (DT) [ 28.586809][ C1] Workqueue: 0x0 (events_unbound) [ 28.587838][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.588692][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.589472][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.590248][ C1] sp : ffff80001000be30 [ 28.590852][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.591919][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 28.594282][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.595297][ C1] x23: 0000000000000080 x22: 000000066788f6c0 [ 28.596287][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 28.598815][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 28.599892][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.602464][ C1] x15: 000001859da772c5 x14: 0000000000000203 [ 28.604362][ C1] x13: 0000000000000001 x12: 0000000000000034 [ 28.606752][ C1] x11: 0000000000000002 x10: 0000000000000203 [ 28.609169][ C1] x9 : 00000000045991c5 x8 : 0000000666c6e190 [ 28.611635][ C1] x7 : 7fffffffffffffff x6 : 0000000666c6e190 [ 28.614549][ C1] x5 : 0000000666c6e190 x4 : fdff000003ac5498 [ 28.616319][ C1] x3 : 0000000667c52d90 x2 : 0000000666c6e190 [ 28.617503][ C1] x1 : 0000000667c52d90 x0 : 0000000000000003 [ 28.619598][ C1] Call trace: [ 28.620224][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.622252][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.623226][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.624574][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.626480][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.628441][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.629507][ C1] gic_handle_irq+0x50/0xd0 [ 28.631245][ C1] el1_irq+0xb4/0x180 [ 28.632802][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.634334][ C1] __schedule+0x2dc/0x794 [ 28.636172][ C1] schedule+0x70/0x10c [ 28.636840][ C1] worker_thread+0xdc/0x434 [ 28.637623][ C1] kthread+0x174/0x180 [ 28.638370][ C1] ret_from_fork+0x10/0x34 [ 28.639189][ C1] ---[ end trace 725733a855eedd92 ]--- [ 28.640515][ C1] ------------[ cut here ]------------ [ 28.641262][ C1] WARNING: CPU: 1 PID: 174 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.642650][ C1] Modules linked in: [ 28.643411][ C1] CPU: 1 PID: 174 Comm: kworker/u4:5 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 28.644945][ C1] Hardware name: linux,dummy-virt (DT) [ 28.645831][ C1] Workqueue: 0x0 (events_unbound) [ 28.646889][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.647933][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.648752][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.649587][ C1] sp : ffff80001000be30 [ 28.650253][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.651390][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 28.652702][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.653841][ C1] x23: 0000000000000080 x22: 000000066b2d4a70 [ 28.654998][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 28.656092][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 28.657133][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.658276][ C1] x15: 00002ac83161ebd0 x14: 000000000000004d [ 28.659364][ C1] x13: 0000000000000001 x12: 000000000000003b [ 28.660899][ C1] x11: 0000000000000002 x10: 000000000000004d [ 28.662034][ C1] x9 : 0000000005515c9b x8 : 000000066ac01190 [ 28.663225][ C1] x7 : 7fffffffffffffff x6 : 000000066ac01190 [ 28.664289][ C1] x5 : 000000066ac01190 x4 : fdff000003ac5498 [ 28.666690][ C1] x3 : 000000066bbe5d90 x2 : 000000066ac01190 [ 28.669100][ C1] x1 : 000000066bbe5d90 x0 : 0000000000000004 [ 28.670388][ C1] Call trace: [ 28.671003][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.671807][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.672924][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.673677][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.674496][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.675276][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.676166][ C1] gic_handle_irq+0x50/0xd0 [ 28.677027][ C1] el1_irq+0xb4/0x180 [ 28.677990][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.679411][ C1] __schedule+0x2dc/0x794 [ 28.680552][ C1] schedule+0x70/0x10c [ 28.681418][ C1] worker_thread+0xdc/0x434 [ 28.683191][ C1] kthread+0x174/0x180 [ 28.684192][ C1] ret_from_fork+0x10/0x34 [ 28.685837][ C1] ---[ end trace 725733a855eedd93 ]--- [ 28.687320][ C1] hrtimer: interrupt took 162511568 ns [ 28.787965][ C1] ------------[ cut here ]------------ [ 28.789013][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.790472][ C1] Modules linked in: [ 28.791220][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 28.793223][ C1] Hardware name: linux,dummy-virt (DT) [ 28.794135][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.795117][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.795913][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.796889][ C1] sp : ffff80001000be30 [ 28.797494][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.798728][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 28.801069][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.802569][ C1] x23: 0000000000000080 x22: 0000000673f62ee0 [ 28.803719][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 28.804814][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 28.805807][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.806814][ C1] x15: 0000ac51387da98e x14: 0000000000000000 [ 28.808000][ C1] x13: 00006fc08bc84b6c x12: 01bf185d1b22c314 [ 28.809042][ C1] x11: 000000000000b67e x10: 0000000000007b92 [ 28.810052][ C1] x9 : 0000000000006fc0 x8 : 0000000673b0bd90 [ 28.811084][ C1] x7 : 7fffffffffffffff x6 : 0000000673b0bd90 [ 28.812365][ C1] x5 : 0000000673b0bd90 x4 : fdff000003ac5498 [ 28.813931][ C1] x3 : 0000000674af0990 x2 : 0000000673b0bd90 [ 28.815581][ C1] x1 : 0000000674af0990 x0 : 0000000000000009 [ 28.816662][ C1] Call trace: [ 28.817213][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.820832][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.825542][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.826276][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.827006][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.827818][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.828530][ C1] gic_handle_irq+0x50/0xd0 [ 28.829233][ C1] el1_irq+0xb4/0x180 [ 28.829883][ C1] arch_cpu_idle+0x18/0x30 [ 28.830725][ C1] default_idle_call+0x24/0x6c [ 28.831448][ C1] do_idle+0x22c/0x29c [ 28.832062][ C1] cpu_startup_entry+0x24/0x70 [ 28.832885][ C1] secondary_start_kernel+0x164/0x190 [ 28.833614][ C1] 0x0 [ 28.834194][ C1] ---[ end trace 725733a855eedd94 ]--- [ 28.836127][ C1] ------------[ cut here ]------------ [ 28.838613][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.843607][ C1] Modules linked in: [ 28.845087][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 28.847165][ C1] Hardware name: linux,dummy-virt (DT) [ 28.848578][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.849510][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.852295][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.855341][ C1] sp : ffff80001000be30 [ 28.855877][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.856837][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 28.857884][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.859274][ C1] x23: 0000000000000080 x22: 0000000676d73b00 [ 28.862007][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 28.865527][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 28.868018][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.869081][ C1] x15: 0000ac51387da98e x14: 0000000000000000 [ 28.870136][ C1] x13: ffff8000126a7000 x12: 0000000000000289 [ 28.871133][ C1] x11: 000000000000001a x10: 0000000000000000 [ 28.872145][ C1] x9 : ffff00007fbd9c40 x8 : 0000000676aba190 [ 28.873274][ C1] x7 : 7fffffffffffffff x6 : 0000000676aba190 [ 28.874492][ C1] x5 : 0000000676aba190 x4 : fdff000003ac5498 [ 28.875513][ C1] x3 : 0000000677a9ed90 x2 : 0000000676aba190 [ 28.876519][ C1] x1 : 0000000677a9ed90 x0 : 0000000000000003 [ 28.877486][ C1] Call trace: [ 28.878001][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.880623][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.883055][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.883780][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.884525][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.885243][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.885940][ C1] gic_handle_irq+0x50/0xd0 [ 28.886651][ C1] el1_irq+0xb4/0x180 [ 28.887291][ C1] arch_cpu_idle+0x18/0x30 [ 28.887964][ C1] default_idle_call+0x24/0x6c [ 28.888653][ C1] do_idle+0x22c/0x29c [ 28.889284][ C1] cpu_startup_entry+0x24/0x70 [ 28.889974][ C1] secondary_start_kernel+0x164/0x190 [ 28.890736][ C1] 0x0 [ 28.891344][ C1] ---[ end trace 725733a855eedd95 ]--- [ 28.892590][ C1] ------------[ cut here ]------------ [ 28.893288][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.894565][ C1] Modules linked in: [ 28.895277][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 28.896388][ C1] Hardware name: linux,dummy-virt (DT) [ 28.897052][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.897916][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.901283][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.905060][ C1] sp : ffff80001000be30 [ 28.905667][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.906744][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 28.907800][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.908834][ C1] x23: 0000000000000080 x22: 000000067a344ea0 [ 28.909864][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 28.910958][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 28.912382][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.914017][ C1] x15: 0000ac51387da98e x14: 0000000000000000 [ 28.915317][ C1] x13: ffff8000126a7000 x12: 00000000000001e9 [ 28.916593][ C1] x11: 0000000000000036 x10: 0000000000000000 [ 28.917907][ C1] x9 : ffff00007fbd9c40 x8 : 0000000679a68590 [ 28.919216][ C1] x7 : 7fffffffffffffff x6 : 0000000679a68590 [ 28.920560][ C1] x5 : 0000000679a68590 x4 : fdff000003ac5498 [ 28.921926][ C1] x3 : 000000067aa4d190 x2 : 0000000679a68590 [ 28.923147][ C1] x1 : 000000067aa4d190 x0 : 0000000000000003 [ 28.924120][ C1] Call trace: [ 28.924642][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.925354][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.926079][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.926780][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.927551][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.928315][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.929067][ C1] gic_handle_irq+0x50/0xd0 [ 28.929726][ C1] el1_irq+0xb4/0x180 [ 28.930376][ C1] arch_cpu_idle+0x18/0x30 [ 28.931037][ C1] default_idle_call+0x24/0x6c [ 28.931993][ C1] do_idle+0x22c/0x29c [ 28.933690][ C1] cpu_startup_entry+0x24/0x70 [ 28.934676][ C1] secondary_start_kernel+0x164/0x190 [ 28.935900][ C1] 0x0 [ 28.936647][ C1] ---[ end trace 725733a855eedd96 ]--- [ 29.037968][ C1] ------------[ cut here ]------------ [ 29.038751][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.039974][ C1] Modules linked in: [ 29.040651][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.041826][ C1] Hardware name: linux,dummy-virt (DT) [ 29.042688][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.045036][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.045779][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.046614][ C1] sp : ffff80001000be30 [ 29.047212][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.048236][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.049262][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.050393][ C1] x23: 0000000000000080 x22: 0000000682e14170 [ 29.051405][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.053348][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 29.054320][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.055324][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 29.056315][ C1] x13: 0000000000000003 x12: 0000000000000040 [ 29.057302][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 29.058321][ C1] x9 : ffff8000127bbe78 x8 : 0000000682973190 [ 29.059335][ C1] x7 : 7fffffffffffffff x6 : 0000000682973190 [ 29.060304][ C1] x5 : 0000000682973190 x4 : fdff000003ac5498 [ 29.061234][ C1] x3 : 0000000683957d90 x2 : 0000000682973190 [ 29.062199][ C1] x1 : 0000000683957d90 x0 : 0000000000000009 [ 29.063549][ C1] Call trace: [ 29.064068][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.064749][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.065436][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.066127][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.066821][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.067500][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.068159][ C1] gic_handle_irq+0x50/0xd0 [ 29.068783][ C1] el1_irq+0xb4/0x180 [ 29.069382][ C1] arch_cpu_idle+0x18/0x30 [ 29.070057][ C1] default_idle_call+0x24/0x6c [ 29.070766][ C1] do_idle+0x22c/0x29c [ 29.071410][ C1] cpu_startup_entry+0x28/0x70 [ 29.072096][ C1] secondary_start_kernel+0x164/0x190 [ 29.073150][ C1] 0x0 [ 29.073686][ C1] ---[ end trace 725733a855eedd97 ]--- [ 29.074855][ C1] ------------[ cut here ]------------ [ 29.075484][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.076621][ C1] Modules linked in: [ 29.077270][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.078455][ C1] Hardware name: linux,dummy-virt (DT) [ 29.079136][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.079966][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.080687][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.081252][ C1] sp : ffff80001000be30 [ 29.081575][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.082195][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.087371][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.088472][ C1] x23: 0000000000000080 x22: 000000068514cf00 [ 29.089520][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.090712][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 29.091699][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.093380][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 29.094431][ C1] x13: 00006274bec19306 x12: 0000000000000277 [ 29.095539][ C1] x11: 0000000000000012 x10: 0000000000000000 [ 29.096614][ C1] x9 : ffff00007fbd9c40 x8 : 000000068493c990 [ 29.097643][ C1] x7 : 7fffffffffffffff x6 : 000000068493c990 [ 29.098729][ C1] x5 : 000000068493c990 x4 : fdff000003ac5498 [ 29.099637][ C1] x3 : 0000000685921590 x2 : 000000068493c990 [ 29.100540][ C1] x1 : 0000000685921590 x0 : 0000000000000002 [ 29.101506][ C1] Call trace: [ 29.102037][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.102991][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.103740][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.104457][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.105194][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.105951][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.106702][ C1] gic_handle_irq+0x50/0xd0 [ 29.107395][ C1] el1_irq+0xb4/0x180 [ 29.108039][ C1] arch_cpu_idle+0x18/0x30 [ 29.108728][ C1] default_idle_call+0x24/0x6c [ 29.109349][ C1] do_idle+0x22c/0x29c [ 29.109911][ C1] cpu_startup_entry+0x28/0x70 [ 29.110682][ C1] secondary_start_kernel+0x164/0x190 [ 29.111398][ C1] 0x0 [ 29.111942][ C1] ---[ end trace 725733a855eedd98 ]--- [ 29.114709][ C1] ------------[ cut here ]------------ [ 29.115398][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.116557][ C1] Modules linked in: [ 29.117239][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.118584][ C1] Hardware name: linux,dummy-virt (DT) [ 29.119242][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.120037][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.120558][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.121125][ C1] sp : ffff80001000be30 [ 29.121589][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.122492][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.123460][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.124356][ C1] x23: 0000000000000080 x22: 000000068771c810 [ 29.125283][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.126168][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 29.127108][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.127917][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 29.128607][ C1] x13: ffff8000126a7000 x12: 000000000000029e [ 29.129506][ C1] x11: 0000000000000026 x10: 0000000000000000 [ 29.130189][ C1] x9 : ffff00007fbd9c40 x8 : 0000000686906190 [ 29.130966][ C1] x7 : 7fffffffffffffff x6 : 0000000686906190 [ 29.131810][ C1] x5 : 0000000686906190 x4 : fdff000003ac5498 [ 29.133046][ C1] x3 : 00000006878ead90 x2 : 0000000686906190 [ 29.134389][ C1] x1 : 00000006878ead90 x0 : 0000000000000002 [ 29.135346][ C1] Call trace: [ 29.135761][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.136473][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.137161][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.137828][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.138563][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.139220][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.139906][ C1] gic_handle_irq+0x50/0xd0 [ 29.140545][ C1] el1_irq+0xb4/0x180 [ 29.140994][ C1] arch_cpu_idle+0x18/0x30 [ 29.141620][ C1] default_idle_call+0x24/0x6c [ 29.142418][ C1] do_idle+0x22c/0x29c [ 29.142960][ C1] cpu_startup_entry+0x28/0x70 [ 29.143604][ C1] secondary_start_kernel+0x164/0x190 [ 29.144332][ C1] 0x0 [ 29.144853][ C1] ---[ end trace 725733a855eedd99 ]--- [ 29.249389][ C1] ------------[ cut here ]------------ [ 29.250339][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.251698][ C1] Modules linked in: [ 29.252264][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.254167][ C1] Hardware name: linux,dummy-virt (DT) [ 29.254829][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.255717][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.256467][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.257124][ C1] sp : ffff80001000be30 [ 29.257465][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.258167][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.258863][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.259735][ C1] x23: 0000000000000080 x22: 000000068f7b80f0 [ 29.260643][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.261529][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 29.262714][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.263487][ C1] x15: 000023413014cba0 x14: 000000000000029b [ 29.264197][ C1] x13: 0000000000000000 x12: 0000000000000040 [ 29.265350][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 29.266771][ C1] x9 : ffff8000127bbe78 x8 : 000000068e82c190 [ 29.267672][ C1] x7 : 7fffffffffffffff x6 : 000000068e82c190 [ 29.268581][ C1] x5 : 000000068e82c190 x4 : fdff000003ac5498 [ 29.269495][ C1] x3 : 000000068f810d90 x2 : 000000068e82c190 [ 29.270428][ C1] x1 : 000000068f810d90 x0 : 0000000000000008 [ 29.271358][ C1] Call trace: [ 29.271698][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.272756][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.273246][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.273739][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.274494][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.275099][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.275570][ C1] gic_handle_irq+0x50/0xd0 [ 29.276217][ C1] el1_irq+0xb4/0x180 [ 29.276785][ C1] kernfs_activate+0x7c/0x150 [ 29.277239][ C1] kernfs_add_one+0xe4/0x12c [ 29.277866][ C1] __kernfs_create_file+0x90/0x160 [ 29.278570][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.279280][ C1] internal_create_group+0x104/0x3cc [ 29.279986][ C1] sysfs_create_group+0x18/0x24 [ 29.280581][ C1] blk_register_queue+0x94/0x220 [ 29.281043][ C1] __device_add_disk+0x328/0x490 [ 29.281750][ C1] device_add_disk+0x14/0x20 [ 29.282787][ C1] brd_init+0x168/0x214 [ 29.283450][ C1] do_one_initcall+0x50/0x1b0 [ 29.284170][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.284922][ C1] kernel_init+0x14/0x118 [ 29.285604][ C1] ret_from_fork+0x10/0x34 [ 29.286287][ C1] ---[ end trace 725733a855eedd9a ]--- [ 29.287494][ C1] ------------[ cut here ]------------ [ 29.288141][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.289289][ C1] Modules linked in: [ 29.289894][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.291109][ C1] Hardware name: linux,dummy-virt (DT) [ 29.291773][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.295061][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.295791][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.296531][ C1] sp : ffff80001000be30 [ 29.297067][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.297831][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.298787][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.299576][ C1] x23: 0000000000000080 x22: 0000000691c19000 [ 29.300425][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.301242][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 29.302115][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.303425][ C1] x15: 0000262fc051b533 x14: 0000000000000114 [ 29.304387][ C1] x13: 0000000000000001 x12: 0000000000000030 [ 29.305395][ C1] x11: 0000000000000001 x10: 0000000000000114 [ 29.306339][ C1] x9 : 000000000274e342 x8 : 00000006917da590 [ 29.307529][ C1] x7 : 7fffffffffffffff x6 : 00000006917da590 [ 29.308446][ C1] x5 : 00000006917da590 x4 : fdff000003ac5498 [ 29.309370][ C1] x3 : 00000006927bf190 x2 : 00000006917da590 [ 29.310217][ C1] x1 : 00000006927bf190 x0 : 0000000000000003 [ 29.311105][ C1] Call trace: [ 29.311543][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.311946][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.312877][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.313643][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.316543][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.317372][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.318530][ C1] gic_handle_irq+0x50/0xd0 [ 29.319220][ C1] el1_irq+0xb4/0x180 [ 29.319737][ C1] kernfs_activate+0x7c/0x150 [ 29.320390][ C1] kernfs_add_one+0xe4/0x12c [ 29.321300][ C1] __kernfs_create_file+0x90/0x160 [ 29.321900][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.323545][ C1] internal_create_group+0x104/0x3cc [ 29.324237][ C1] sysfs_create_group+0x18/0x24 [ 29.324910][ C1] blk_register_queue+0x94/0x220 [ 29.325590][ C1] __device_add_disk+0x328/0x490 [ 29.326302][ C1] device_add_disk+0x14/0x20 [ 29.326957][ C1] brd_init+0x168/0x214 [ 29.327572][ C1] do_one_initcall+0x50/0x1b0 [ 29.328238][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.328945][ C1] kernel_init+0x14/0x118 [ 29.329587][ C1] ret_from_fork+0x10/0x34 [ 29.330258][ C1] ---[ end trace 725733a855eedd9b ]--- [ 29.331316][ C1] ------------[ cut here ]------------ [ 29.331942][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.333093][ C1] Modules linked in: [ 29.333744][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.334877][ C1] Hardware name: linux,dummy-virt (DT) [ 29.335451][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.336166][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.336785][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.337374][ C1] sp : ffff80001000be30 [ 29.337849][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.338639][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.339403][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.340166][ C1] x23: 0000000000000080 x22: 00000006945b4de0 [ 29.340918][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.341668][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 29.342696][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.343473][ C1] x15: 00003f261a193070 x14: 0000000000000089 [ 29.344252][ C1] x13: 0000000000000001 x12: 000000000000002a [ 29.345006][ C1] x11: 0000000000000001 x10: 0000000000000089 [ 29.345772][ C1] x9 : 0000000002b1ac53 x8 : 00000006937a3d90 [ 29.346711][ C1] x7 : 7fffffffffffffff x6 : 00000006937a3d90 [ 29.347601][ C1] x5 : 00000006937a3d90 x4 : fdff000003ac5498 [ 29.348507][ C1] x3 : 0000000694788990 x2 : 00000006937a3d90 [ 29.349412][ C1] x1 : 0000000694788990 x0 : 0000000000000002 [ 29.350377][ C1] Call trace: [ 29.350864][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.351532][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.352274][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.353018][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.353707][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.354454][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.355122][ C1] gic_handle_irq+0x50/0xd0 [ 29.355759][ C1] el1_irq+0xb4/0x180 [ 29.356355][ C1] kernfs_activate+0x7c/0x150 [ 29.356838][ C1] kernfs_add_one+0xe4/0x12c [ 29.357487][ C1] __kernfs_create_file+0x90/0x160 [ 29.358206][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.358649][ C1] internal_create_group+0x104/0x3cc [ 29.359328][ C1] sysfs_create_group+0x18/0x24 [ 29.360004][ C1] blk_register_queue+0x94/0x220 [ 29.360528][ C1] __device_add_disk+0x328/0x490 [ 29.361216][ C1] device_add_disk+0x14/0x20 [ 29.361878][ C1] brd_init+0x168/0x214 [ 29.362619][ C1] do_one_initcall+0x50/0x1b0 [ 29.363331][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.364028][ C1] kernel_init+0x14/0x118 [ 29.364687][ C1] ret_from_fork+0x10/0x34 [ 29.365317][ C1] ---[ end trace 725733a855eedd9c ]--- [ 29.466641][ C1] ------------[ cut here ]------------ [ 29.467514][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.468810][ C1] Modules linked in: [ 29.469496][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.479386][ C1] Hardware name: linux,dummy-virt (DT) [ 29.480142][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.481063][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.483043][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.483783][ C1] sp : ffff80001000be30 [ 29.484327][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.485309][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.486346][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.487437][ C1] x23: 0000000000000080 x22: 000000069c67be60 [ 29.488445][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.489407][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 29.490438][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.491414][ C1] x15: 000084d5bfa9ec40 x14: 0000000000000231 [ 29.492566][ C1] x13: 0000000000000001 x12: 000000000000000c [ 29.493424][ C1] x11: 0000000000000001 x10: 0000000000000231 [ 29.494401][ C1] x9 : 0000000002c1ff89 x8 : 000000069c6ae990 [ 29.495372][ C1] x7 : 7fffffffffffffff x6 : 000000069c6ae990 [ 29.496357][ C1] x5 : 000000069c6ae990 x4 : fdff000003ac5498 [ 29.497330][ C1] x3 : 000000069d693590 x2 : 000000069c6ae990 [ 29.498280][ C1] x1 : 000000069d693590 x0 : 0000000000000009 [ 29.499227][ C1] Call trace: [ 29.499770][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.500818][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.501680][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.502430][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.503843][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.504583][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.505270][ C1] gic_handle_irq+0x50/0xd0 [ 29.505965][ C1] el1_irq+0xb4/0x180 [ 29.506600][ C1] idr_get_free+0xa0/0x2c0 [ 29.507228][ C1] idr_alloc_u32+0x64/0xf0 [ 29.507880][ C1] idr_alloc_cyclic+0x68/0xe4 [ 29.508521][ C1] __kernfs_new_node+0xa8/0x210 [ 29.509253][ C1] kernfs_new_node+0x48/0x70 [ 29.509933][ C1] __kernfs_create_file+0x30/0x160 [ 29.510677][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.511504][ C1] sysfs_merge_group+0x84/0x120 [ 29.512291][ C1] dpm_sysfs_add+0x100/0x130 [ 29.514382][ C1] device_add+0x2ec/0x7d0 [ 29.515416][ C1] __device_add_disk+0x144/0x490 [ 29.516134][ C1] device_add_disk+0x14/0x20 [ 29.516857][ C1] brd_init+0x168/0x214 [ 29.517883][ C1] do_one_initcall+0x50/0x1b0 [ 29.518618][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.519355][ C1] kernel_init+0x14/0x118 [ 29.520081][ C1] ret_from_fork+0x10/0x34 [ 29.520772][ C1] ---[ end trace 725733a855eedd9d ]--- [ 29.522140][ C1] ------------[ cut here ]------------ [ 29.523246][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.524779][ C1] Modules linked in: [ 29.525425][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.526610][ C1] Hardware name: linux,dummy-virt (DT) [ 29.527279][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.528247][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.529005][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.529697][ C1] sp : ffff80001000be30 [ 29.530485][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.531438][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.532629][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.533553][ C1] x23: 0000000000000080 x22: 000000069fb83260 [ 29.534596][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.535576][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 29.536728][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.537663][ C1] x15: 000037f50c154060 x14: 000000000000025f [ 29.538812][ C1] x13: 0000000000000001 x12: 0000000000000035 [ 29.539759][ C1] x11: 0000000000000001 x10: 000000000000025f [ 29.540720][ C1] x9 : 0000000002d910a6 x8 : 000000069f65cd90 [ 29.541690][ C1] x7 : 7fffffffffffffff x6 : 000000069f65cd90 [ 29.543081][ C1] x5 : 000000069f65cd90 x4 : fdff000003ac5498 [ 29.543737][ C1] x3 : 00000006a0641990 x2 : 000000069f65cd90 [ 29.544325][ C1] x1 : 00000006a0641990 x0 : 0000000000000003 [ 29.544936][ C1] Call trace: [ 29.545277][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.545736][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.546217][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.546696][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.547422][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.547887][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.548298][ C1] gic_handle_irq+0x50/0xd0 [ 29.548692][ C1] el1_irq+0xb4/0x180 [ 29.549054][ C1] idr_get_free+0xa0/0x2c0 [ 29.549438][ C1] idr_alloc_u32+0x64/0xf0 [ 29.549820][ C1] idr_alloc_cyclic+0x68/0xe4 [ 29.550361][ C1] __kernfs_new_node+0xa8/0x210 [ 29.550985][ C1] kernfs_new_node+0x48/0x70 [ 29.552078][ C1] __kernfs_create_file+0x30/0x160 [ 29.552948][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.553654][ C1] sysfs_merge_group+0x84/0x120 [ 29.554381][ C1] dpm_sysfs_add+0x100/0x130 [ 29.555065][ C1] device_add+0x2ec/0x7d0 [ 29.555713][ C1] __device_add_disk+0x144/0x490 [ 29.556402][ C1] device_add_disk+0x14/0x20 [ 29.557051][ C1] brd_init+0x168/0x214 [ 29.558172][ C1] do_one_initcall+0x50/0x1b0 [ 29.558869][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.559564][ C1] kernel_init+0x14/0x118 [ 29.560246][ C1] ret_from_fork+0x10/0x34 [ 29.560909][ C1] ---[ end trace 725733a855eedd9e ]--- [ 29.562119][ C1] ------------[ cut here ]------------ [ 29.562849][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.563951][ C1] Modules linked in: [ 29.564586][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.565717][ C1] Hardware name: linux,dummy-virt (DT) [ 29.566388][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.567214][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.567963][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.568656][ C1] sp : ffff80001000be30 [ 29.569184][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.570202][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.571192][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.572152][ C1] x23: 0000000000000080 x22: 00000006a21be250 [ 29.573364][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.574377][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 29.575347][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.576325][ C1] x15: 000050024a72c99f x14: 00000000000002ff [ 29.577317][ C1] x13: 0000000000000001 x12: 0000000000000026 [ 29.578325][ C1] x11: 0000000000000001 x10: 00000000000002ff [ 29.579302][ C1] x9 : 0000000002e16302 x8 : 00000006a1626590 [ 29.580273][ C1] x7 : 7fffffffffffffff x6 : 00000006a1626590 [ 29.581205][ C1] x5 : 00000006a1626590 x4 : fdff000003ac5498 [ 29.582160][ C1] x3 : 00000006a260b190 x2 : 00000006a1626590 [ 29.583352][ C1] x1 : 00000006a260b190 x0 : 0000000000000002 [ 29.584253][ C1] Call trace: [ 29.584777][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.585510][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.586276][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.587000][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.587743][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.588465][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.589176][ C1] gic_handle_irq+0x50/0xd0 [ 29.589856][ C1] el1_irq+0xb4/0x180 [ 29.590497][ C1] idr_get_free+0xa0/0x2c0 [ 29.591164][ C1] idr_alloc_u32+0x64/0xf0 [ 29.591819][ C1] idr_alloc_cyclic+0x68/0xe4 [ 29.592990][ C1] __kernfs_new_node+0xa8/0x210 [ 29.593657][ C1] kernfs_new_node+0x48/0x70 [ 29.594347][ C1] __kernfs_create_file+0x30/0x160 [ 29.595060][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.595783][ C1] sysfs_merge_group+0x84/0x120 [ 29.596472][ C1] dpm_sysfs_add+0x100/0x130 [ 29.597150][ C1] device_add+0x2ec/0x7d0 [ 29.597822][ C1] __device_add_disk+0x144/0x490 [ 29.598496][ C1] device_add_disk+0x14/0x20 [ 29.599166][ C1] brd_init+0x168/0x214 [ 29.599813][ C1] do_one_initcall+0x50/0x1b0 [ 29.600481][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.601201][ C1] kernel_init+0x14/0x118 [ 29.601870][ C1] ret_from_fork+0x10/0x34 [ 29.603050][ C1] ---[ end trace 725733a855eedd9f ]--- [ 29.704408][ C1] ------------[ cut here ]------------ [ 29.705815][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.707412][ C1] Modules linked in: [ 29.708141][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.709341][ C1] Hardware name: linux,dummy-virt (DT) [ 29.710077][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.710969][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.711754][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.712716][ C1] sp : ffff80001000be30 [ 29.713390][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.714735][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.716022][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.717077][ C1] x23: 0000000000000080 x22: 00000006aa973440 [ 29.718287][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.719339][ C1] x19: fdff000003ac5498 x18: 00000000fffffffd [ 29.721796][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.723398][ C1] x15: 0000000000000020 x14: 0000000000000000 [ 29.724482][ C1] x13: 00007280e8c7ecd8 x12: 01ca0ad337044a94 [ 29.725718][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 29.727146][ C1] x9 : 0000000000000800 x8 : 00000006aa531190 [ 29.728203][ C1] x7 : 7fffffffffffffff x6 : 00000006aa531190 [ 29.730469][ C1] x5 : 00000006aa531190 x4 : fdff000003ac5498 [ 29.732485][ C1] x3 : 00000006ab515d90 x2 : 00000006aa531190 [ 29.733452][ C1] x1 : 00000006ab515d90 x0 : 0000000000000009 [ 29.734812][ C1] Call trace: [ 29.735315][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.736066][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.736784][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.737480][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.738260][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.739044][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.739787][ C1] gic_handle_irq+0x50/0xd0 [ 29.740498][ C1] el1_irq+0xb4/0x180 [ 29.741185][ C1] idr_alloc_u32+0x8c/0xf0 [ 29.743478][ C1] idr_alloc_cyclic+0x68/0xe4 [ 29.747443][ C1] __kernfs_new_node+0xa8/0x210 [ 29.748251][ C1] kernfs_new_node+0x48/0x70 [ 29.748987][ C1] __kernfs_create_file+0x30/0x160 [ 29.749670][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.750390][ C1] internal_create_group+0x104/0x3cc [ 29.751082][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.752589][ C1] sysfs_create_groups+0x20/0x34 [ 29.754300][ C1] device_add+0x270/0x7d0 [ 29.754980][ C1] device_create_groups_vargs+0x108/0x174 [ 29.755746][ C1] device_create+0x5c/0x8c [ 29.756421][ C1] bdi_register_va+0x80/0x214 [ 29.758153][ C1] bdi_register+0x58/0x80 [ 29.758827][ C1] __device_add_disk+0x40c/0x490 [ 29.759511][ C1] device_add_disk+0x14/0x20 [ 29.760191][ C1] brd_init+0x168/0x214 [ 29.760867][ C1] do_one_initcall+0x50/0x1b0 [ 29.761519][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.762260][ C1] kernel_init+0x14/0x118 [ 29.763075][ C1] ret_from_fork+0x10/0x34 [ 29.763796][ C1] ---[ end trace 725733a855eedda0 ]--- [ 29.765204][ C1] ------------[ cut here ]------------ [ 29.766144][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.767809][ C1] Modules linked in: [ 29.768502][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.769593][ C1] Hardware name: linux,dummy-virt (DT) [ 29.770260][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.771055][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.771735][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.772567][ C1] sp : ffff80001000be30 [ 29.773174][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.774049][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.775071][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.776233][ C1] x23: 0000000000000080 x22: 00000006ae3680d0 [ 29.777357][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.778344][ C1] x19: fdff000003ac5498 x18: 00000000fffffffd [ 29.779298][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.780236][ C1] x15: 000035a0764fb190 x14: 00000000000001af [ 29.781261][ C1] x13: 0000000000000001 x12: 0000000000000035 [ 29.782194][ C1] x11: 0000000000000001 x10: 00000000000001af [ 29.783181][ C1] x9 : 0000000002ef65ea x8 : 00000006ad4df590 [ 29.784145][ C1] x7 : 7fffffffffffffff x6 : 00000006ad4df590 [ 29.784973][ C1] x5 : 00000006ad4df590 x4 : fdff000003ac5498 [ 29.785662][ C1] x3 : 00000006ae4c4190 x2 : 00000006ad4df590 [ 29.786417][ C1] x1 : 00000006ae4c4190 x0 : 0000000000000003 [ 29.787239][ C1] Call trace: [ 29.787706][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.788341][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.789054][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.789681][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.790380][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.791045][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.791740][ C1] gic_handle_irq+0x50/0xd0 [ 29.792333][ C1] el1_irq+0xb4/0x180 [ 29.793193][ C1] idr_alloc_u32+0x8c/0xf0 [ 29.793752][ C1] idr_alloc_cyclic+0x68/0xe4 [ 29.794334][ C1] __kernfs_new_node+0xa8/0x210 [ 29.794871][ C1] kernfs_new_node+0x48/0x70 [ 29.795463][ C1] __kernfs_create_file+0x30/0x160 [ 29.796073][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.796717][ C1] internal_create_group+0x104/0x3cc [ 29.797329][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.797922][ C1] sysfs_create_groups+0x20/0x34 [ 29.798555][ C1] device_add+0x270/0x7d0 [ 29.799062][ C1] device_create_groups_vargs+0x108/0x174 [ 29.799752][ C1] device_create+0x5c/0x8c [ 29.800352][ C1] bdi_register_va+0x80/0x214 [ 29.800949][ C1] bdi_register+0x58/0x80 [ 29.801514][ C1] __device_add_disk+0x40c/0x490 [ 29.802177][ C1] device_add_disk+0x14/0x20 [ 29.803043][ C1] brd_init+0x168/0x214 [ 29.803554][ C1] do_one_initcall+0x50/0x1b0 [ 29.804125][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.804789][ C1] kernel_init+0x14/0x118 [ 29.805376][ C1] ret_from_fork+0x10/0x34 [ 29.805918][ C1] ---[ end trace 725733a855eedda1 ]--- [ 29.806757][ C1] ------------[ cut here ]------------ [ 29.807258][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.808281][ C1] Modules linked in: [ 29.809112][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.810550][ C1] Hardware name: linux,dummy-virt (DT) [ 29.811118][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.811745][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.812402][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.813050][ C1] sp : ffff80001000be30 [ 29.813471][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.814288][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.815007][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.815756][ C1] x23: 0000000000000080 x22: 00000006b0b59d00 [ 29.816378][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.816984][ C1] x19: fdff000003ac5498 x18: 00000000fffffffd [ 29.817638][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.818335][ C1] x15: 000035a0764fb190 x14: 00000000000001af [ 29.819014][ C1] x13: 0000000000000001 x12: 0000000000000035 [ 29.819664][ C1] x11: 0000000000000001 x10: 00000000000001af [ 29.820291][ C1] x9 : ffff8000129fe000 x8 : 00000006b048d990 [ 29.820799][ C1] x7 : 7fffffffffffffff x6 : 00000006b048d990 [ 29.821309][ C1] x5 : 00000006b048d990 x4 : fdff000003ac5498 [ 29.821806][ C1] x3 : 00000006b1472590 x2 : 00000006b048d990 [ 29.822445][ C1] x1 : 00000006b1472590 x0 : 0000000000000003 [ 29.823030][ C1] Call trace: [ 29.823448][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.824015][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.824575][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.825174][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.825822][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.826515][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.827065][ C1] gic_handle_irq+0x50/0xd0 [ 29.827559][ C1] el1_irq+0xb4/0x180 [ 29.828086][ C1] idr_alloc_u32+0x8c/0xf0 [ 29.828640][ C1] idr_alloc_cyclic+0x68/0xe4 [ 29.829148][ C1] __kernfs_new_node+0xa8/0x210 [ 29.829701][ C1] kernfs_new_node+0x48/0x70 [ 29.830213][ C1] __kernfs_create_file+0x30/0x160 [ 29.830702][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.831269][ C1] internal_create_group+0x104/0x3cc [ 29.831864][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.832772][ C1] sysfs_create_groups+0x20/0x34 [ 29.833211][ C1] device_add+0x270/0x7d0 [ 29.833631][ C1] device_create_groups_vargs+0x108/0x174 [ 29.834199][ C1] device_create+0x5c/0x8c [ 29.834553][ C1] bdi_register_va+0x80/0x214 [ 29.835000][ C1] bdi_register+0x58/0x80 [ 29.835422][ C1] __device_add_disk+0x40c/0x490 [ 29.835924][ C1] device_add_disk+0x14/0x20 [ 29.836459][ C1] brd_init+0x168/0x214 [ 29.837018][ C1] do_one_initcall+0x50/0x1b0 [ 29.837579][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.838182][ C1] kernel_init+0x14/0x118 [ 29.838662][ C1] ret_from_fork+0x10/0x34 [ 29.839209][ C1] ---[ end trace 725733a855eedda2 ]--- [ 29.909478][ T1] brd: module loaded [ 29.940559][ C1] ------------[ cut here ]------------ [ 29.941270][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.942909][ C1] Modules linked in: [ 29.943500][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.944535][ C1] Hardware name: linux,dummy-virt (DT) [ 29.945192][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.945930][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.946687][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.947335][ C1] sp : ffff80001000be30 [ 29.947845][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.948583][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.949372][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.950192][ C1] x23: 0000000000000080 x22: 00000006b8ae1550 [ 29.950872][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.951686][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 29.952675][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.953588][ C1] x15: 0000000000000020 x14: 000000000000003b [ 29.954477][ C1] x13: 000078d5aa2b5340 x12: 0000000000000040 [ 29.955338][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 29.956218][ C1] x9 : ffff8000127bbe78 x8 : 00000006b83b3990 [ 29.957055][ C1] x7 : 7fffffffffffffff x6 : 00000006b83b3990 [ 29.957897][ C1] x5 : 00000006b83b3990 x4 : fdff000003ac5498 [ 29.958838][ C1] x3 : 00000006b9398590 x2 : 00000006b83b3990 [ 29.959701][ C1] x1 : 00000006b9398590 x0 : 0000000000000008 [ 29.960535][ C1] Call trace: [ 29.960956][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.961597][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.962537][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.963158][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.963805][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.964452][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.965056][ C1] gic_handle_irq+0x50/0xd0 [ 29.965637][ C1] el1_irq+0xb4/0x180 [ 29.966151][ C1] arch_cpu_idle+0x18/0x30 [ 29.966608][ C1] default_idle_call+0x24/0x6c [ 29.967230][ C1] do_idle+0x22c/0x29c [ 29.967700][ C1] cpu_startup_entry+0x28/0x70 [ 29.968346][ C1] secondary_start_kernel+0x164/0x190 [ 29.968933][ C1] 0x0 [ 29.969424][ C1] ---[ end trace 725733a855eedda3 ]--- [ 29.970402][ C1] ------------[ cut here ]------------ [ 29.970931][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.975432][ C1] Modules linked in: [ 29.976094][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 29.977238][ C1] Hardware name: linux,dummy-virt (DT) [ 29.977925][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.978754][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.979496][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.980222][ C1] sp : ffff80001000be30 [ 29.980792][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.981829][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 29.983397][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.984407][ C1] x23: 0000000000000080 x22: 00000006ba76d400 [ 29.985462][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 29.986768][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 29.987855][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.988920][ C1] x15: 0000000000000020 x14: 0000000000000000 [ 29.989953][ C1] x13: 0000592d3bef5307 x12: 0164bb4324b77f8e [ 29.990979][ C1] x11: 000000000000b67e x10: 00000000000065af [ 29.992090][ C1] x9 : 000000000000592d x8 : 00000006ba37d190 [ 29.993625][ C1] x7 : 7fffffffffffffff x6 : 00000006ba37d190 [ 29.994887][ C1] x5 : 00000006ba37d190 x4 : fdff000003ac5498 [ 29.995847][ C1] x3 : 00000006bb361d90 x2 : 00000006ba37d190 [ 29.996884][ C1] x1 : 00000006bb361d90 x0 : 0000000000000002 [ 29.997913][ C1] Call trace: [ 29.998503][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.999287][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.000123][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.000809][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.001586][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.002902][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.003768][ C1] gic_handle_irq+0x50/0xd0 [ 30.004457][ C1] el1_irq+0xb4/0x180 [ 30.005169][ C1] arch_cpu_idle+0x18/0x30 [ 30.005864][ C1] default_idle_call+0x24/0x6c [ 30.006663][ C1] do_idle+0x22c/0x29c [ 30.007441][ C1] cpu_startup_entry+0x28/0x70 [ 30.008226][ C1] secondary_start_kernel+0x164/0x190 [ 30.009235][ C1] 0x0 [ 30.009892][ C1] ---[ end trace 725733a855eedda4 ]--- [ 30.011186][ C1] ------------[ cut here ]------------ [ 30.012069][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.014543][ C1] Modules linked in: [ 30.015299][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.016505][ C1] Hardware name: linux,dummy-virt (DT) [ 30.017252][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.018184][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.018767][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.019252][ C1] sp : ffff80001000be30 [ 30.019690][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.020627][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.021544][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.022899][ C1] x23: 0000000000000080 x22: 00000006bce13ab0 [ 30.023773][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.024701][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 30.025698][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.027304][ C1] x15: 0000000000000020 x14: 0000000000000000 [ 30.028388][ C1] x13: 00004ac6d74e8fee x12: 0000000000000270 [ 30.029435][ C1] x11: 0000000000000020 x10: 0000000000000000 [ 30.030467][ C1] x9 : ffff00007fbd9c40 x8 : 00000006bc346990 [ 30.031538][ C1] x7 : 7fffffffffffffff x6 : 00000006bc346990 [ 30.032960][ C1] x5 : 00000006bc346990 x4 : fdff000003ac5498 [ 30.033825][ C1] x3 : 00000006bd32b590 x2 : 00000006bc346990 [ 30.034702][ C1] x1 : 00000006bd32b590 x0 : 0000000000000002 [ 30.035634][ C1] Call trace: [ 30.036181][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.036864][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.037491][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.038332][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.039258][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.040059][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.040767][ C1] gic_handle_irq+0x50/0xd0 [ 30.041516][ C1] el1_irq+0xb4/0x180 [ 30.042202][ C1] arch_cpu_idle+0x18/0x30 [ 30.043196][ C1] default_idle_call+0x24/0x6c [ 30.043822][ C1] do_idle+0x22c/0x29c [ 30.044746][ C1] cpu_startup_entry+0x28/0x70 [ 30.045463][ C1] secondary_start_kernel+0x164/0x190 [ 30.046408][ C1] 0x0 [ 30.046978][ C1] ---[ end trace 725733a855eedda5 ]--- [ 30.148348][ C1] ------------[ cut here ]------------ [ 30.149777][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.153898][ C1] Modules linked in: [ 30.154611][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.155842][ C1] Hardware name: linux,dummy-virt (DT) [ 30.156550][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.157471][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.158222][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.159486][ C1] sp : ffff80001000be30 [ 30.160227][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.161247][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.162260][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.163174][ C1] x23: 0000000000000080 x22: 00000006c50d60c0 [ 30.164294][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.165405][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 30.166501][ C1] x17: 00000000c2fdf64e x16: 000000007a1cca69 [ 30.167777][ C1] x15: 00008e00a9d84612 x14: 00000000000001f8 [ 30.168753][ C1] x13: 0000000000000001 x12: 0000000000000006 [ 30.169914][ C1] x11: 0000000000000002 x10: 00000000000001f8 [ 30.170991][ C1] x9 : 000000000585a38f x8 : 00000006c426c990 [ 30.172242][ C1] x7 : 7fffffffffffffff x6 : 00000006c426c990 [ 30.173255][ C1] x5 : 00000006c426c990 x4 : fdff000003ac5498 [ 30.175572][ C1] x3 : 00000006c5251590 x2 : 00000006c426c990 [ 30.176642][ C1] x1 : 00000006c5251590 x0 : 0000000000000008 [ 30.177686][ C1] Call trace: [ 30.178287][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.179098][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.179853][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.180560][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.181339][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.182551][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.183296][ C1] gic_handle_irq+0x50/0xd0 [ 30.184025][ C1] el1_irq+0xb4/0x180 [ 30.184674][ C1] stack_depot_save+0x24/0x4bc [ 30.185412][ C1] kasan_save_stack+0x44/0x60 [ 30.186171][ C1] __kasan_slab_alloc+0xd8/0x120 [ 30.186917][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.187711][ C1] __kernfs_new_node+0x68/0x210 [ 30.188488][ C1] kernfs_new_node+0x48/0x70 [ 30.189267][ C1] __kernfs_create_file+0x30/0x160 [ 30.190014][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.190787][ C1] internal_create_group+0x104/0x3cc [ 30.191460][ C1] sysfs_create_group+0x18/0x24 [ 30.192097][ C1] blk_register_queue+0x94/0x220 [ 30.192838][ C1] __device_add_disk+0x328/0x490 [ 30.193958][ C1] device_add_disk+0x14/0x20 [ 30.194926][ C1] loop_add+0x1f4/0x260 [ 30.195632][ C1] loop_init+0x104/0x158 [ 30.196981][ C1] do_one_initcall+0x50/0x1b0 [ 30.197823][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.198476][ C1] kernel_init+0x14/0x118 [ 30.199791][ C1] ret_from_fork+0x10/0x34 [ 30.200564][ C1] ---[ end trace 725733a855eedda6 ]--- [ 30.201680][ C1] ------------[ cut here ]------------ [ 30.202804][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.204058][ C1] Modules linked in: [ 30.204782][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.206075][ C1] Hardware name: linux,dummy-virt (DT) [ 30.206781][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.207625][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.208365][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.209125][ C1] sp : ffff80001000be30 [ 30.209678][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.210683][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.211923][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.212975][ C1] x23: 0000000000000080 x22: 00000006c83e7cd0 [ 30.214024][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.215096][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 30.216114][ C1] x17: 00000000c2fdf64e x16: 000000007a1cca69 [ 30.217135][ C1] x15: 00008e00a9d84612 x14: 00000000000001f8 [ 30.218116][ C1] x13: 0000000000000001 x12: 0000000000000006 [ 30.219522][ C1] x11: 0000000000000002 x10: 00000000000001f8 [ 30.221498][ C1] x9 : ffff8000129fe000 x8 : 00000006c81ff990 [ 30.222783][ C1] x7 : 7fffffffffffffff x6 : 00000006c81ff990 [ 30.223861][ C1] x5 : 00000006c81ff990 x4 : fdff000003ac5498 [ 30.225234][ C1] x3 : 00000006c91e4590 x2 : 00000006c81ff990 [ 30.226341][ C1] x1 : 00000006c91e4590 x0 : 0000000000000004 [ 30.227262][ C1] Call trace: [ 30.227755][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.228547][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.229407][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.230161][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.231069][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.231843][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.233090][ C1] gic_handle_irq+0x50/0xd0 [ 30.234077][ C1] el1_irq+0xb4/0x180 [ 30.234769][ C1] stack_depot_save+0x24/0x4bc [ 30.235307][ C1] kasan_save_stack+0x44/0x60 [ 30.235883][ C1] __kasan_slab_alloc+0xd8/0x120 [ 30.236520][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.237157][ C1] __kernfs_new_node+0x68/0x210 [ 30.237808][ C1] kernfs_new_node+0x48/0x70 [ 30.238493][ C1] __kernfs_create_file+0x30/0x160 [ 30.239189][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.239875][ C1] internal_create_group+0x104/0x3cc [ 30.240598][ C1] sysfs_create_group+0x18/0x24 [ 30.241297][ C1] blk_register_queue+0x94/0x220 [ 30.242001][ C1] __device_add_disk+0x328/0x490 [ 30.243144][ C1] device_add_disk+0x14/0x20 [ 30.243811][ C1] loop_add+0x1f4/0x260 [ 30.244448][ C1] loop_init+0x104/0x158 [ 30.245062][ C1] do_one_initcall+0x50/0x1b0 [ 30.245694][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.246411][ C1] kernel_init+0x14/0x118 [ 30.247043][ C1] ret_from_fork+0x10/0x34 [ 30.247703][ C1] ---[ end trace 725733a855eedda7 ]--- [ 30.248871][ C1] ------------[ cut here ]------------ [ 30.249474][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.250625][ C1] Modules linked in: [ 30.251249][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.255053][ C1] Hardware name: linux,dummy-virt (DT) [ 30.255678][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.256502][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.257259][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.257986][ C1] sp : ffff80001000be30 [ 30.258571][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.259649][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.260644][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.261661][ C1] x23: 0000000000000080 x22: 00000006cb0f2ad0 [ 30.263155][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.264239][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 30.265263][ C1] x17: 00000000c2fdf64e x16: 000000007a1cca69 [ 30.266263][ C1] x15: 000014bfffffeb40 x14: 000000000000015a [ 30.267235][ C1] x13: 0000000000000001 x12: 0000000000000039 [ 30.268292][ C1] x11: 0000000000000001 x10: 000000000000015a [ 30.269334][ C1] x9 : 0000000002d79f8c x8 : 00000006ca1c9190 [ 30.270408][ C1] x7 : 7fffffffffffffff x6 : 00000006ca1c9190 [ 30.271459][ C1] x5 : 00000006ca1c9190 x4 : fdff000003ac5498 [ 30.273156][ C1] x3 : 00000006cb1add90 x2 : 00000006ca1c9190 [ 30.274292][ C1] x1 : 00000006cb1add90 x0 : 0000000000000002 [ 30.275229][ C1] Call trace: [ 30.275737][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.276420][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.277133][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.277829][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.278677][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.279467][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.280228][ C1] gic_handle_irq+0x50/0xd0 [ 30.280927][ C1] el1_irq+0xb4/0x180 [ 30.281584][ C1] stack_depot_save+0x24/0x4bc [ 30.282825][ C1] kasan_save_stack+0x44/0x60 [ 30.283542][ C1] __kasan_slab_alloc+0xd8/0x120 [ 30.284254][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.284958][ C1] __kernfs_new_node+0x68/0x210 [ 30.285737][ C1] kernfs_new_node+0x48/0x70 [ 30.286374][ C1] __kernfs_create_file+0x30/0x160 [ 30.287024][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.287890][ C1] internal_create_group+0x104/0x3cc [ 30.288593][ C1] sysfs_create_group+0x18/0x24 [ 30.289230][ C1] blk_register_queue+0x94/0x220 [ 30.289873][ C1] __device_add_disk+0x328/0x490 [ 30.290586][ C1] device_add_disk+0x14/0x20 [ 30.292866][ C1] loop_add+0x1f4/0x260 [ 30.293553][ C1] loop_init+0x104/0x158 [ 30.294298][ C1] do_one_initcall+0x50/0x1b0 [ 30.295438][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.297395][ C1] kernel_init+0x14/0x118 [ 30.298560][ C1] ret_from_fork+0x10/0x34 [ 30.300824][ C1] ---[ end trace 725733a855eedda8 ]--- [ 30.403711][ C1] ------------[ cut here ]------------ [ 30.404997][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.406355][ C1] Modules linked in: [ 30.407097][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.408303][ C1] Hardware name: linux,dummy-virt (DT) [ 30.409021][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.420185][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.421035][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.421728][ C1] sp : ffff80001000be30 [ 30.422379][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.423600][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.424788][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.425803][ C1] x23: 0000000000000080 x22: 00000006d4491180 [ 30.427069][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.428218][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 30.429508][ C1] x17: 00000000c2fdf64e x16: 000000007a1cca69 [ 30.431052][ C1] x15: 000032b7c5e6bbb0 x14: 0000000000000268 [ 30.432381][ C1] x13: 0000000000000001 x12: 0000000000000040 [ 30.433804][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 30.435121][ C1] x9 : ffff8000127bbe78 x8 : 00000006d40b8990 [ 30.436504][ C1] x7 : 7fffffffffffffff x6 : 00000006d40b8990 [ 30.438472][ C1] x5 : 00000006d40b8990 x4 : fdff000003ac5498 [ 30.440116][ C1] x3 : 00000006d509d590 x2 : 00000006d40b8990 [ 30.443653][ C1] x1 : 00000006d509d590 x0 : 000000000000000a [ 30.444743][ C1] Call trace: [ 30.445259][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.445987][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.446766][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.447468][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.448188][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.448926][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.449728][ C1] gic_handle_irq+0x50/0xd0 [ 30.450638][ C1] el1_irq+0xb4/0x180 [ 30.451366][ C1] __kernfs_create_file+0x54/0x160 [ 30.452148][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.453336][ C1] internal_create_group+0x104/0x3cc [ 30.454226][ C1] sysfs_create_group+0x18/0x24 [ 30.454979][ C1] blk_register_queue+0x94/0x220 [ 30.455749][ C1] __device_add_disk+0x328/0x490 [ 30.456545][ C1] device_add_disk+0x14/0x20 [ 30.457258][ C1] loop_add+0x1f4/0x260 [ 30.457952][ C1] loop_init+0x104/0x158 [ 30.458638][ C1] do_one_initcall+0x50/0x1b0 [ 30.459398][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.460142][ C1] kernel_init+0x14/0x118 [ 30.460878][ C1] ret_from_fork+0x10/0x34 [ 30.461620][ C1] ---[ end trace 725733a855eedda9 ]--- [ 30.463046][ C1] ------------[ cut here ]------------ [ 30.463755][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.465028][ C1] Modules linked in: [ 30.465703][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.466937][ C1] Hardware name: linux,dummy-virt (DT) [ 30.467632][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.468450][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.469136][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.469869][ C1] sp : ffff80001000be30 [ 30.470516][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.471715][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.472898][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.474922][ C1] x23: 0000000000000080 x22: 00000006d7d2d200 [ 30.476031][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.477202][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 30.478368][ C1] x17: 00000000c2fdf64e x16: 000000007a1cca69 [ 30.479428][ C1] x15: 00003ece43d750c4 x14: 00000000000000c8 [ 30.480781][ C1] x13: 0000000000000001 x12: 000000000000002f [ 30.482033][ C1] x11: 0000000000000001 x10: 00000000000000c8 [ 30.483186][ C1] x9 : 0000000002da6c1c x8 : 00000006d7066d90 [ 30.484242][ C1] x7 : 7fffffffffffffff x6 : 00000006d7066d90 [ 30.485522][ C1] x5 : 00000006d7066d90 x4 : fdff000003ac5498 [ 30.487017][ C1] x3 : 00000006d804b990 x2 : 00000006d7066d90 [ 30.488115][ C1] x1 : 00000006d804b990 x0 : 0000000000000003 [ 30.489210][ C1] Call trace: [ 30.489787][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.490561][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.491276][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.492050][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.493179][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.494213][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.494970][ C1] gic_handle_irq+0x50/0xd0 [ 30.496746][ C1] el1_irq+0xb4/0x180 [ 30.497465][ C1] __kernfs_create_file+0x54/0x160 [ 30.498287][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.499027][ C1] internal_create_group+0x104/0x3cc [ 30.499855][ C1] sysfs_create_group+0x18/0x24 [ 30.500602][ C1] blk_register_queue+0x94/0x220 [ 30.501403][ C1] __device_add_disk+0x328/0x490 [ 30.502158][ C1] device_add_disk+0x14/0x20 [ 30.503001][ C1] loop_add+0x1f4/0x260 [ 30.503687][ C1] loop_init+0x104/0x158 [ 30.504372][ C1] do_one_initcall+0x50/0x1b0 [ 30.505176][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.506420][ C1] kernel_init+0x14/0x118 [ 30.507115][ C1] ret_from_fork+0x10/0x34 [ 30.507861][ C1] ---[ end trace 725733a855eeddaa ]--- [ 30.509173][ C1] ------------[ cut here ]------------ [ 30.510286][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.511509][ C1] Modules linked in: [ 30.512285][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.513638][ C1] Hardware name: linux,dummy-virt (DT) [ 30.514373][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.515346][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.516279][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.517072][ C1] sp : ffff80001000be30 [ 30.517766][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.518779][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.519911][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.521026][ C1] x23: 0000000000000080 x22: 00000006da92e250 [ 30.522244][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.524343][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 30.525278][ C1] x17: 00000000c2fdf64e x16: 000000007a1cca69 [ 30.526292][ C1] x15: 00003ece43d750c4 x14: 00000000000000c8 [ 30.527312][ C1] x13: 0000000000000001 x12: 000000000000002f [ 30.528432][ C1] x11: 0000000000000001 x10: 00000000000000c8 [ 30.529499][ C1] x9 : ffff8000129fe000 x8 : 00000006da015190 [ 30.530546][ C1] x7 : 7fffffffffffffff x6 : 00000006da015190 [ 30.531993][ C1] x5 : 00000006da015190 x4 : fdff000003ac5498 [ 30.533874][ C1] x3 : 00000006daff9d90 x2 : 00000006da015190 [ 30.534910][ C1] x1 : 00000006daff9d90 x0 : 0000000000000003 [ 30.535975][ C1] Call trace: [ 30.536543][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.537333][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.538493][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.539186][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.539927][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.540789][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.541599][ C1] gic_handle_irq+0x50/0xd0 [ 30.542418][ C1] el1_irq+0xb4/0x180 [ 30.543165][ C1] __kernfs_create_file+0x54/0x160 [ 30.543961][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.544801][ C1] internal_create_group+0x104/0x3cc [ 30.545625][ C1] sysfs_create_group+0x18/0x24 [ 30.546588][ C1] blk_register_queue+0x94/0x220 [ 30.547365][ C1] __device_add_disk+0x328/0x490 [ 30.548076][ C1] device_add_disk+0x14/0x20 [ 30.548722][ C1] loop_add+0x1f4/0x260 [ 30.549415][ C1] loop_init+0x104/0x158 [ 30.550034][ C1] do_one_initcall+0x50/0x1b0 [ 30.550744][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.551450][ C1] kernel_init+0x14/0x118 [ 30.552056][ C1] ret_from_fork+0x10/0x34 [ 30.552925][ C1] ---[ end trace 725733a855eeddab ]--- [ 30.654510][ C1] ------------[ cut here ]------------ [ 30.656119][ C1] WARNING: CPU: 1 PID: 2037 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.658642][ C1] Modules linked in: [ 30.661693][ C1] CPU: 1 PID: 2037 Comm: kworker/u4:5 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.665480][ C1] Hardware name: linux,dummy-virt (DT) [ 30.666285][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.667263][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.668050][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.668728][ C1] sp : ffff80001000be30 [ 30.669361][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.670470][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.671607][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.682786][ C1] x23: 0000000000000080 x22: 00000006e33aea20 [ 30.683883][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.684894][ C1] x19: fdff000003ac5498 x18: 0000000000000014 [ 30.685962][ C1] x17: 000000006e5daf91 x16: 00000000e6cef3bb [ 30.687027][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 30.688014][ C1] x13: 0000000000078f26 x12: 0000000000000040 [ 30.689013][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 30.690043][ C1] x9 : ffff8000127bbe78 x8 : 00000006e2f1fd90 [ 30.691159][ C1] x7 : 7fffffffffffffff x6 : 00000006e2f1fd90 [ 30.692216][ C1] x5 : 00000006e2f1fd90 x4 : fdff000003ac5498 [ 30.702585][ C1] x3 : 00000006e3f04990 x2 : 00000006e2f1fd90 [ 30.703611][ C1] x1 : 00000006e3f04990 x0 : 0000000000000009 [ 30.704734][ C1] Call trace: [ 30.705457][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.706329][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.707034][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.707695][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.708391][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.709128][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.709768][ C1] gic_handle_irq+0x50/0xd0 [ 30.710485][ C1] el1_irq+0xb4/0x180 [ 30.711163][ C1] unwind_frame+0x58/0x180 [ 30.711793][ C1] stack_trace_save+0x50/0x80 [ 30.712438][ C1] kasan_save_stack+0x28/0x60 [ 30.713169][ C1] kasan_set_track+0x28/0x40 [ 30.713882][ C1] kasan_set_free_info+0x20/0x30 [ 30.714586][ C1] ____kasan_slab_free.constprop.0+0x1e8/0x230 [ 30.715375][ C1] __kasan_slab_free+0x10/0x1c [ 30.716108][ C1] slab_free_freelist_hook+0xbc/0x210 [ 30.716863][ C1] kfree+0x350/0x4d4 [ 30.717504][ C1] free_bprm+0xa0/0xc0 [ 30.726240][ C1] kernel_execve+0x130/0x1a0 [ 30.728404][ C1] call_usermodehelper_exec_async+0xcc/0x140 [ 30.730194][ C1] ret_from_fork+0x10/0x34 [ 30.731137][ C1] ---[ end trace 725733a855eeddac ]--- [ 30.732769][ C1] ------------[ cut here ]------------ [ 30.733622][ C1] WARNING: CPU: 1 PID: 2037 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.740448][ C1] Modules linked in: [ 30.741125][ C1] CPU: 1 PID: 2037 Comm: kworker/u4:5 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.742433][ C1] Hardware name: linux,dummy-virt (DT) [ 30.743554][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.744364][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.745080][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.745715][ C1] sp : ffff80001000be30 [ 30.746380][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.749216][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.750541][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.751608][ C1] x23: 0000000000000080 x22: 00000006e7e67b90 [ 30.754471][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.755673][ C1] x19: fdff000003ac5498 x18: 0000000000000014 [ 30.756679][ C1] x17: 000000006e5daf91 x16: 00000000e6cef3bb [ 30.757880][ C1] x15: 00006ccffcc93000 x14: 0000000000000175 [ 30.758951][ C1] x13: 0000000000000001 x12: 0000000000000018 [ 30.760089][ C1] x11: 0000000000000001 x10: 0000000000000175 [ 30.761119][ C1] x9 : 0000000002f6edf6 x8 : 00000006e6eb2d90 [ 30.762118][ C1] x7 : 7fffffffffffffff x6 : 00000006e6eb2d90 [ 30.763243][ C1] x5 : 00000006e6eb2d90 x4 : fdff000003ac5498 [ 30.764218][ C1] x3 : 00000006e7e97990 x2 : 00000006e6eb2d90 [ 30.765149][ C1] x1 : 00000006e7e97990 x0 : 0000000000000004 [ 30.766211][ C1] Call trace: [ 30.767807][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.768527][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.769254][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.770203][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.770925][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.771631][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.772569][ C1] gic_handle_irq+0x50/0xd0 [ 30.773628][ C1] el1_irq+0xb4/0x180 [ 30.774567][ C1] unwind_frame+0x58/0x180 [ 30.775599][ C1] stack_trace_save+0x50/0x80 [ 30.776574][ C1] kasan_save_stack+0x28/0x60 [ 30.779954][ C1] kasan_set_track+0x28/0x40 [ 30.780921][ C1] kasan_set_free_info+0x20/0x30 [ 30.781988][ C1] ____kasan_slab_free.constprop.0+0x1e8/0x230 [ 30.785830][ C1] __kasan_slab_free+0x10/0x1c [ 30.788055][ C1] slab_free_freelist_hook+0xbc/0x210 [ 30.790443][ C1] kfree+0x350/0x4d4 [ 30.791156][ C1] free_bprm+0xa0/0xc0 [ 30.791945][ C1] kernel_execve+0x130/0x1a0 [ 30.793044][ C1] call_usermodehelper_exec_async+0xcc/0x140 [ 30.793955][ C1] ret_from_fork+0x10/0x34 [ 30.794683][ C1] ---[ end trace 725733a855eeddad ]--- [ 30.795740][ C1] ------------[ cut here ]------------ [ 30.796448][ C1] WARNING: CPU: 1 PID: 2037 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.798166][ C1] Modules linked in: [ 30.798943][ C1] CPU: 1 PID: 2037 Comm: kworker/u4:5 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.800358][ C1] Hardware name: linux,dummy-virt (DT) [ 30.801088][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.802798][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.803669][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.804579][ C1] sp : ffff80001000be30 [ 30.806711][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.807902][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.809159][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.810273][ C1] x23: 0000000000000080 x22: 00000006eba76bd0 [ 30.811433][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.812770][ C1] x19: fdff000003ac5498 x18: 0000000000000014 [ 30.813967][ C1] x17: 000000006e5daf91 x16: 00000000e6cef3bb [ 30.815923][ C1] x15: 00006ccffcc93000 x14: 0000000000000175 [ 30.817286][ C1] x13: 0000000000000001 x12: 0000000000000018 [ 30.818689][ C1] x11: 0000000000000001 x10: 0000000000000175 [ 30.819898][ C1] x9 : ffff8000129fe000 x8 : 00000006eae45d90 [ 30.820920][ C1] x7 : 7fffffffffffffff x6 : 00000006eae45d90 [ 30.821922][ C1] x5 : 00000006eae45d90 x4 : fdff000003ac5498 [ 30.824064][ C1] x3 : 00000006ebe2a990 x2 : 00000006eae45d90 [ 30.826249][ C1] x1 : 00000006ebe2a990 x0 : 0000000000000004 [ 30.827997][ C1] Call trace: [ 30.828571][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.829402][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.830270][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.830980][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.831795][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.832743][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.833516][ C1] gic_handle_irq+0x50/0xd0 [ 30.834307][ C1] el1_irq+0xb4/0x180 [ 30.835027][ C1] unwind_frame+0x58/0x180 [ 30.835747][ C1] stack_trace_save+0x50/0x80 [ 30.836478][ C1] kasan_save_stack+0x28/0x60 [ 30.837259][ C1] kasan_set_track+0x28/0x40 [ 30.838237][ C1] kasan_set_free_info+0x20/0x30 [ 30.838944][ C1] ____kasan_slab_free.constprop.0+0x1e8/0x230 [ 30.839875][ C1] __kasan_slab_free+0x10/0x1c [ 30.840670][ C1] slab_free_freelist_hook+0xbc/0x210 [ 30.841459][ C1] kfree+0x350/0x4d4 [ 30.842130][ C1] free_bprm+0xa0/0xc0 [ 30.844460][ C1] kernel_execve+0x130/0x1a0 [ 30.845575][ C1] call_usermodehelper_exec_async+0xcc/0x140 [ 30.846568][ C1] ret_from_fork+0x10/0x34 [ 30.847352][ C1] ---[ end trace 725733a855eeddae ]--- [ 30.948887][ C1] ------------[ cut here ]------------ [ 30.949643][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.950886][ C1] Modules linked in: [ 30.951617][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 30.952868][ C1] Hardware name: linux,dummy-virt (DT) [ 30.953600][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.954608][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.955344][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.956152][ C1] sp : ffff80001000be30 [ 30.956760][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.957840][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 30.958954][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.960030][ C1] x23: 0000000000000080 x22: 00000006f4c7d100 [ 30.961087][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 30.962194][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 30.963241][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.964312][ C1] x15: 0000000000000004 x14: ffff8000126d9388 [ 30.965374][ C1] x13: 000081d62dbbf82c x12: 0000000000000040 [ 30.966477][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 30.967527][ C1] x9 : ffff8000127bbe78 x8 : 00000006f3d50990 [ 30.968590][ C1] x7 : 7fffffffffffffff x6 : 00000006f3d50990 [ 30.969646][ C1] x5 : 00000006f3d50990 x4 : fdff000003ac5498 [ 30.982793][ C1] x3 : 00000006f4d35590 x2 : 00000006f3d50990 [ 30.983894][ C1] x1 : 00000006f4d35590 x0 : 0000000000000009 [ 30.984942][ C1] Call trace: [ 30.988391][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.989212][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.990398][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.991147][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.991940][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.993110][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.993981][ C1] gic_handle_irq+0x50/0xd0 [ 30.994749][ C1] el1_irq+0xb4/0x180 [ 30.995463][ C1] arch_cpu_idle+0x18/0x30 [ 30.996213][ C1] default_idle_call+0x24/0x6c [ 30.997050][ C1] do_idle+0x22c/0x29c [ 30.997737][ C1] cpu_startup_entry+0x28/0x70 [ 30.998525][ C1] secondary_start_kernel+0x164/0x190 [ 30.999486][ C1] 0x0 [ 31.000057][ C1] ---[ end trace 725733a855eeddaf ]--- [ 31.001255][ C1] ------------[ cut here ]------------ [ 31.001886][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.004960][ C1] Modules linked in: [ 31.005669][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.006890][ C1] Hardware name: linux,dummy-virt (DT) [ 31.007605][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.008614][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.009426][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.010201][ C1] sp : ffff80001000be30 [ 31.010844][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.011970][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.013627][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.014717][ C1] x23: 0000000000000080 x22: 00000006f7e763d0 [ 31.015834][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.016978][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 31.018066][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.019201][ C1] x15: 0000000000000004 x14: 000000000000ba7e [ 31.020220][ C1] x13: 000012204e6fd150 x12: 004883ce9417d154 [ 31.021315][ C1] x11: 000000000000b67e x10: 00000000000019fa [ 31.022937][ C1] x9 : 0000000000001220 x8 : 00000006f7ce3990 [ 31.024090][ C1] x7 : 7fffffffffffffff x6 : 00000006f7ce3990 [ 31.025202][ C1] x5 : 00000006f7ce3990 x4 : fdff000003ac5498 [ 31.026325][ C1] x3 : 00000006f8cc8590 x2 : 00000006f7ce3990 [ 31.027405][ C1] x1 : 00000006f8cc8590 x0 : 0000000000000004 [ 31.028498][ C1] Call trace: [ 31.029038][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.029759][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.030517][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.031243][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.032001][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.034019][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.034856][ C1] gic_handle_irq+0x50/0xd0 [ 31.035746][ C1] el1_irq+0xb4/0x180 [ 31.036529][ C1] arch_cpu_idle+0x18/0x30 [ 31.037502][ C1] default_idle_call+0x24/0x6c [ 31.038729][ C1] do_idle+0x22c/0x29c [ 31.039442][ C1] cpu_startup_entry+0x28/0x70 [ 31.040206][ C1] secondary_start_kernel+0x164/0x190 [ 31.041030][ C1] 0x0 [ 31.041646][ C1] ---[ end trace 725733a855eeddb0 ]--- [ 31.043409][ C1] ------------[ cut here ]------------ [ 31.044473][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.045875][ C1] Modules linked in: [ 31.046635][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.047945][ C1] Hardware name: linux,dummy-virt (DT) [ 31.048714][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.049662][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.050511][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.051311][ C1] sp : ffff80001000be30 [ 31.052051][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.054402][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.055520][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.056612][ C1] x23: 0000000000000080 x22: 00000006fa680680 [ 31.057693][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.058831][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 31.059912][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.061215][ C1] x15: 0000000000000004 x14: 000000000000ba7e [ 31.063423][ C1] x13: 00004980bec8ff03 x12: 0126048be1cc4ad7 [ 31.064511][ C1] x11: 000000000000b67e x10: 0000000000004cba [ 31.065610][ C1] x9 : 0000000000004980 x8 : 00000006f9cad190 [ 31.066674][ C1] x7 : 7fffffffffffffff x6 : 00000006f9cad190 [ 31.067728][ C1] x5 : 00000006f9cad190 x4 : fdff000003ac5498 [ 31.068872][ C1] x3 : 00000006fac91d90 x2 : 00000006f9cad190 [ 31.069918][ C1] x1 : 00000006fac91d90 x0 : 0000000000000002 [ 31.070992][ C1] Call trace: [ 31.071569][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.072855][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.073867][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.074711][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.075818][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.076648][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.077501][ C1] gic_handle_irq+0x50/0xd0 [ 31.078501][ C1] el1_irq+0xb4/0x180 [ 31.079399][ C1] arch_cpu_idle+0x18/0x30 [ 31.080603][ C1] default_idle_call+0x24/0x6c [ 31.081542][ C1] do_idle+0x22c/0x29c [ 31.082678][ C1] cpu_startup_entry+0x28/0x70 [ 31.083436][ C1] secondary_start_kernel+0x164/0x190 [ 31.084423][ C1] 0x0 [ 31.085074][ C1] ---[ end trace 725733a855eeddb1 ]--- [ 31.186544][ C1] ------------[ cut here ]------------ [ 31.187509][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.189566][ C1] Modules linked in: [ 31.191867][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.197127][ C1] Hardware name: linux,dummy-virt (DT) [ 31.201420][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.207366][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.209357][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.211266][ C1] sp : ffff80001000be30 [ 31.213259][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.215840][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.218319][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.219517][ C1] x23: 0000000000000080 x22: 0000000702f0b780 [ 31.221645][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.224290][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 31.226125][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.228819][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 31.231333][ C1] x13: 0000000000000003 x12: 0000000000000040 [ 31.234390][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 31.236927][ C1] x9 : ffff8000127bbe78 x8 : 0000000702bb7d90 [ 31.239474][ C1] x7 : 7fffffffffffffff x6 : 0000000702bb7d90 [ 31.241910][ C1] x5 : 0000000702bb7d90 x4 : fdff000003ac5498 [ 31.245315][ C1] x3 : 0000000703b9c990 x2 : 0000000702bb7d90 [ 31.246951][ C1] x1 : 0000000703b9c990 x0 : 0000000000000009 [ 31.248374][ C1] Call trace: [ 31.249537][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.251387][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.253739][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.257760][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.259204][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.259974][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.260765][ C1] gic_handle_irq+0x50/0xd0 [ 31.261450][ C1] el1_irq+0xb4/0x180 [ 31.262122][ C1] arch_cpu_idle+0x18/0x30 [ 31.263083][ C1] default_idle_call+0x24/0x6c [ 31.263815][ C1] do_idle+0x22c/0x29c [ 31.264512][ C1] cpu_startup_entry+0x28/0x70 [ 31.265250][ C1] secondary_start_kernel+0x164/0x190 [ 31.266054][ C1] 0x0 [ 31.266696][ C1] ---[ end trace 725733a855eeddb2 ]--- [ 31.268103][ C1] ------------[ cut here ]------------ [ 31.268850][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.269925][ C1] Modules linked in: [ 31.270550][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.271602][ C1] Hardware name: linux,dummy-virt (DT) [ 31.272322][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.273167][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.273966][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.274789][ C1] sp : ffff80001000be30 [ 31.275379][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.276489][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.277583][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.279040][ C1] x23: 0000000000000080 x22: 0000000707cf2fb0 [ 31.280204][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.281470][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 31.283281][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.285884][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 31.288201][ C1] x13: 00001756800b32aa x12: 0000000000000125 [ 31.289333][ C1] x11: 0000000000000052 x10: 0000000000000000 [ 31.290257][ C1] x9 : ffff00007fbd9c40 x8 : 0000000707b2f990 [ 31.291291][ C1] x7 : 7fffffffffffffff x6 : 0000000707b2f990 [ 31.292608][ C1] x5 : 0000000707b2f990 x4 : fdff000003ac5498 [ 31.293726][ C1] x3 : 0000000708b14590 x2 : 0000000707b2f990 [ 31.295578][ C1] x1 : 0000000708b14590 x0 : 0000000000000005 [ 31.296930][ C1] Call trace: [ 31.298317][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.300377][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.301091][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.303679][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.304508][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.305472][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.306279][ C1] gic_handle_irq+0x50/0xd0 [ 31.306978][ C1] el1_irq+0xb4/0x180 [ 31.307512][ C1] arch_cpu_idle+0x18/0x30 [ 31.308341][ C1] default_idle_call+0x24/0x6c [ 31.309076][ C1] do_idle+0x22c/0x29c [ 31.309867][ C1] cpu_startup_entry+0x28/0x70 [ 31.310644][ C1] secondary_start_kernel+0x164/0x190 [ 31.311328][ C1] 0x0 [ 31.311857][ C1] ---[ end trace 725733a855eeddb3 ]--- [ 31.313745][ C1] ------------[ cut here ]------------ [ 31.314704][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.315978][ C1] Modules linked in: [ 31.316710][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.317914][ C1] Hardware name: linux,dummy-virt (DT) [ 31.318825][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.319673][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.320289][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.320996][ C1] sp : ffff80001000be30 [ 31.321905][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.324181][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.325309][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.326574][ C1] x23: 0000000000000080 x22: 000000070a850e30 [ 31.327586][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.328484][ C1] x19: fdff000003ac5498 x18: 000000000000000e [ 31.329443][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.330462][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 31.331417][ C1] x13: ffff8000126a7000 x12: 0000000000000396 [ 31.333012][ C1] x11: 000000000000002b x10: 0000000000000000 [ 31.334079][ C1] x9 : ffff00007fbd9c40 x8 : 0000000709af9190 [ 31.335866][ C1] x7 : 7fffffffffffffff x6 : 0000000709af9190 [ 31.337139][ C1] x5 : 0000000709af9190 x4 : fdff000003ac5498 [ 31.338368][ C1] x3 : 000000070aaddd90 x2 : 0000000709af9190 [ 31.339394][ C1] x1 : 000000070aaddd90 x0 : 0000000000000002 [ 31.340254][ C1] Call trace: [ 31.340739][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.341583][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.342869][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.343597][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.344402][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.345219][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.345984][ C1] gic_handle_irq+0x50/0xd0 [ 31.346728][ C1] el1_irq+0xb4/0x180 [ 31.347408][ C1] arch_cpu_idle+0x18/0x30 [ 31.348095][ C1] default_idle_call+0x24/0x6c [ 31.348814][ C1] do_idle+0x22c/0x29c [ 31.349465][ C1] cpu_startup_entry+0x28/0x70 [ 31.349984][ C1] secondary_start_kernel+0x164/0x190 [ 31.350655][ C1] 0x0 [ 31.351135][ C1] ---[ end trace 725733a855eeddb4 ]--- [ 31.452301][ C1] ------------[ cut here ]------------ [ 31.453290][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.454430][ C1] Modules linked in: [ 31.455210][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.456348][ C1] Hardware name: linux,dummy-virt (DT) [ 31.456970][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.458049][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.458969][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.459728][ C1] sp : ffff80001000be30 [ 31.460327][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.461371][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.462573][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.463589][ C1] x23: 0000000000000080 x22: 0000000712c96750 [ 31.464771][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.465843][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 31.467072][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.468023][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 31.469026][ C1] x13: 0000000000078dc5 x12: 0000000000000040 [ 31.470575][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 31.471500][ C1] x9 : ffff8000127bbe78 x8 : 0000000712a03d90 [ 31.472668][ C1] x7 : 7fffffffffffffff x6 : 0000000712a03d90 [ 31.473784][ C1] x5 : 0000000712a03d90 x4 : fdff000003ac5498 [ 31.474814][ C1] x3 : 00000007139e8990 x2 : 0000000712a03d90 [ 31.476260][ C1] x1 : 00000007139e8990 x0 : 0000000000000009 [ 31.477899][ C1] Call trace: [ 31.478660][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.479719][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.480676][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.481670][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.482655][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.483548][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.484215][ C1] gic_handle_irq+0x50/0xd0 [ 31.484856][ C1] el1_irq+0xb4/0x180 [ 31.485466][ C1] __kasan_init_slab_obj+0x0/0x94 [ 31.486142][ C1] allocate_slab+0x1b8/0x3f0 [ 31.486805][ C1] ___slab_alloc+0x4f8/0x640 [ 31.487463][ C1] __slab_alloc.constprop.0+0x2c/0x5c [ 31.488155][ C1] kmem_cache_alloc+0x324/0x33c [ 31.488828][ C1] call_usermodehelper_setup+0x74/0xe0 [ 31.489591][ C1] kobject_uevent_env+0x568/0x690 [ 31.490288][ C1] kobject_uevent+0x14/0x20 [ 31.491008][ C1] device_add+0x330/0x7d0 [ 31.491661][ C1] device_create_groups_vargs+0x108/0x174 [ 31.492466][ C1] device_create+0x5c/0x8c [ 31.493128][ C1] bdi_register_va+0x80/0x214 [ 31.493760][ C1] bdi_register+0x58/0x80 [ 31.494398][ C1] __device_add_disk+0x40c/0x490 [ 31.495052][ C1] device_add_disk+0x14/0x20 [ 31.495707][ C1] loop_add+0x1f4/0x260 [ 31.496329][ C1] loop_init+0x104/0x158 [ 31.496955][ C1] do_one_initcall+0x50/0x1b0 [ 31.497648][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.498409][ C1] kernel_init+0x14/0x118 [ 31.499089][ C1] ret_from_fork+0x10/0x34 [ 31.499772][ C1] ---[ end trace 725733a855eeddb5 ]--- [ 31.501010][ C1] ------------[ cut here ]------------ [ 31.501799][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.503294][ C1] Modules linked in: [ 31.503955][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.507014][ C1] Hardware name: linux,dummy-virt (DT) [ 31.507870][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.508874][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.509656][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.510378][ C1] sp : ffff80001000be30 [ 31.511012][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.512058][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.513617][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.514699][ C1] x23: 0000000000000080 x22: 0000000715b131d0 [ 31.515802][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.516889][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 31.517978][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.519123][ C1] x15: 0000170255a1b773 x14: 0000000000000212 [ 31.520070][ C1] x13: 0000000000000001 x12: 0000000000000012 [ 31.521088][ C1] x11: 0000000000000001 x10: 0000000000000212 [ 31.522597][ C1] x9 : 0000000001466c06 x8 : 00000007159b2190 [ 31.523760][ C1] x7 : 7fffffffffffffff x6 : 00000007159b2190 [ 31.524809][ C1] x5 : 00000007159b2190 x4 : fdff000003ac5498 [ 31.525862][ C1] x3 : 0000000716996d90 x2 : 00000007159b2190 [ 31.526954][ C1] x1 : 0000000716996d90 x0 : 0000000000000003 [ 31.528070][ C1] Call trace: [ 31.528633][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.529435][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.530171][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.530831][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.531615][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.532990][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.533747][ C1] gic_handle_irq+0x50/0xd0 [ 31.534525][ C1] el1_irq+0xb4/0x180 [ 31.535207][ C1] __kasan_init_slab_obj+0x0/0x94 [ 31.535952][ C1] allocate_slab+0x1b8/0x3f0 [ 31.536932][ C1] ___slab_alloc+0x4f8/0x640 [ 31.537732][ C1] __slab_alloc.constprop.0+0x2c/0x5c [ 31.538582][ C1] kmem_cache_alloc+0x324/0x33c [ 31.539329][ C1] call_usermodehelper_setup+0x74/0xe0 [ 31.540107][ C1] kobject_uevent_env+0x568/0x690 [ 31.540936][ C1] kobject_uevent+0x14/0x20 [ 31.541725][ C1] device_add+0x330/0x7d0 [ 31.542958][ C1] device_create_groups_vargs+0x108/0x174 [ 31.543782][ C1] device_create+0x5c/0x8c [ 31.544517][ C1] bdi_register_va+0x80/0x214 [ 31.545334][ C1] bdi_register+0x58/0x80 [ 31.546074][ C1] __device_add_disk+0x40c/0x490 [ 31.546881][ C1] device_add_disk+0x14/0x20 [ 31.547683][ C1] loop_add+0x1f4/0x260 [ 31.548450][ C1] loop_init+0x104/0x158 [ 31.549258][ C1] do_one_initcall+0x50/0x1b0 [ 31.550006][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.550786][ C1] kernel_init+0x14/0x118 [ 31.551539][ C1] ret_from_fork+0x10/0x34 [ 31.552623][ C1] ---[ end trace 725733a855eeddb6 ]--- [ 31.555423][ C1] ------------[ cut here ]------------ [ 31.556124][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.557418][ C1] Modules linked in: [ 31.558199][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.559541][ C1] Hardware name: linux,dummy-virt (DT) [ 31.560169][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.561017][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.561822][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.564292][ C1] sp : ffff80001000be30 [ 31.564906][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.567968][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.570291][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.571362][ C1] x23: 0000000000000080 x22: 0000000718eb01e0 [ 31.572934][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.573955][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 31.575102][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.576226][ C1] x15: 00001a7226a0f2b1 x14: 00000000000001bc [ 31.577312][ C1] x13: 0000000000000001 x12: 0000000000000034 [ 31.578395][ C1] x11: 0000000000000001 x10: 00000000000001bc [ 31.579481][ C1] x9 : 00000000025b6448 x8 : 0000000718960590 [ 31.580543][ C1] x7 : 7fffffffffffffff x6 : 0000000718960590 [ 31.581529][ C1] x5 : 0000000718960590 x4 : fdff000003ac5498 [ 31.583335][ C1] x3 : 0000000719945190 x2 : 0000000718960590 [ 31.584488][ C1] x1 : 0000000719945190 x0 : 0000000000000003 [ 31.585653][ C1] Call trace: [ 31.586314][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.587116][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.587945][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.588725][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.589537][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.590241][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.591024][ C1] gic_handle_irq+0x50/0xd0 [ 31.591876][ C1] el1_irq+0xb4/0x180 [ 31.593079][ C1] __kasan_init_slab_obj+0x0/0x94 [ 31.593930][ C1] allocate_slab+0x1b8/0x3f0 [ 31.594708][ C1] ___slab_alloc+0x4f8/0x640 [ 31.595393][ C1] __slab_alloc.constprop.0+0x2c/0x5c [ 31.596163][ C1] kmem_cache_alloc+0x324/0x33c [ 31.597011][ C1] call_usermodehelper_setup+0x74/0xe0 [ 31.597838][ C1] kobject_uevent_env+0x568/0x690 [ 31.598660][ C1] kobject_uevent+0x14/0x20 [ 31.599403][ C1] device_add+0x330/0x7d0 [ 31.599946][ C1] device_create_groups_vargs+0x108/0x174 [ 31.600677][ C1] device_create+0x5c/0x8c [ 31.601511][ C1] bdi_register_va+0x80/0x214 [ 31.602842][ C1] bdi_register+0x58/0x80 [ 31.603654][ C1] __device_add_disk+0x40c/0x490 [ 31.604406][ C1] device_add_disk+0x14/0x20 [ 31.605199][ C1] loop_add+0x1f4/0x260 [ 31.605905][ C1] loop_init+0x104/0x158 [ 31.606846][ C1] do_one_initcall+0x50/0x1b0 [ 31.608017][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.608921][ C1] kernel_init+0x14/0x118 [ 31.609646][ C1] ret_from_fork+0x10/0x34 [ 31.610317][ C1] ---[ end trace 725733a855eeddb7 ]--- [ 31.711640][ C1] ------------[ cut here ]------------ [ 31.712571][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.714405][ C1] Modules linked in: [ 31.715147][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.716665][ C1] Hardware name: linux,dummy-virt (DT) [ 31.717317][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.718310][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.719160][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.719928][ C1] sp : ffff80001000be30 [ 31.720613][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.721811][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.723086][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.724210][ C1] x23: 0000000000000080 x22: 00000007223bac70 [ 31.725395][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.726526][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 31.727628][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.728851][ C1] x15: 000005dda2d9bbc6 x14: 0000000000000000 [ 31.729797][ C1] x13: 00009534e0f590f0 x12: 0254db1a4ec4bdb6 [ 31.730801][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 31.731829][ C1] x9 : 0000000000000400 x8 : 000000072186b190 [ 31.733122][ C1] x7 : 7fffffffffffffff x6 : 000000072186b190 [ 31.734232][ C1] x5 : 000000072186b190 x4 : fdff000003ac5498 [ 31.735315][ C1] x3 : 000000072284fd90 x2 : 000000072186b190 [ 31.736415][ C1] x1 : 000000072284fd90 x0 : 0000000000000009 [ 31.737382][ C1] Call trace: [ 31.737873][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.738592][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.739325][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.739974][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.740681][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.741414][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.742172][ C1] gic_handle_irq+0x50/0xd0 [ 31.742901][ C1] el1_irq+0xb4/0x180 [ 31.743581][ C1] arch_stack_walk+0x58/0x16c [ 31.744292][ C1] stack_trace_save+0x50/0x80 [ 31.744940][ C1] kasan_save_stack+0x28/0x60 [ 31.745654][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.746418][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.747083][ C1] __d_alloc+0x2c/0x1f0 [ 31.747743][ C1] d_alloc+0x1c/0xa0 [ 31.748364][ C1] d_alloc_parallel+0x6c/0x4a0 [ 31.749028][ C1] __lookup_slow+0x5c/0x14c [ 31.749661][ C1] lookup_one_len+0x94/0xa4 [ 31.750350][ C1] start_creating.part.0+0x74/0x160 [ 31.751036][ C1] __debugfs_create_file+0x74/0x1fc [ 31.751729][ C1] debugfs_create_file+0x2c/0x40 [ 31.752397][ C1] bdi_register_va+0x110/0x214 [ 31.753324][ C1] bdi_register+0x58/0x80 [ 31.753921][ C1] __device_add_disk+0x40c/0x490 [ 31.754712][ C1] device_add_disk+0x14/0x20 [ 31.755425][ C1] loop_add+0x1f4/0x260 [ 31.756104][ C1] loop_init+0x104/0x158 [ 31.756799][ C1] do_one_initcall+0x50/0x1b0 [ 31.757465][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.758205][ C1] kernel_init+0x14/0x118 [ 31.758875][ C1] ret_from_fork+0x10/0x34 [ 31.759645][ C1] ---[ end trace 725733a855eeddb8 ]--- [ 31.761036][ C1] ------------[ cut here ]------------ [ 31.761744][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.763400][ C1] Modules linked in: [ 31.763988][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.765162][ C1] Hardware name: linux,dummy-virt (DT) [ 31.765838][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.766934][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.767808][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.768507][ C1] sp : ffff80001000be30 [ 31.769052][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.770058][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.771050][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.772062][ C1] x23: 0000000000000080 x22: 00000007252c4ac0 [ 31.773190][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.774349][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 31.775466][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.776571][ C1] x15: 000046ac46f9b15e x14: 000000000000028c [ 31.777664][ C1] x13: 0000000000000001 x12: 0000000000000023 [ 31.778690][ C1] x11: 0000000000000001 x10: 000000000000028c [ 31.779610][ C1] x9 : 0000000002a596dc x8 : 0000000724819590 [ 31.780531][ C1] x7 : 7fffffffffffffff x6 : 0000000724819590 [ 31.781543][ C1] x5 : 0000000724819590 x4 : fdff000003ac5498 [ 31.782801][ C1] x3 : 00000007257fe190 x2 : 0000000724819590 [ 31.783984][ C1] x1 : 00000007257fe190 x0 : 0000000000000003 [ 31.785120][ C1] Call trace: [ 31.785695][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.787453][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.788548][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.789490][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.790258][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.790956][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.791634][ C1] gic_handle_irq+0x50/0xd0 [ 31.792824][ C1] el1_irq+0xb4/0x180 [ 31.793542][ C1] arch_stack_walk+0x58/0x16c [ 31.794184][ C1] stack_trace_save+0x50/0x80 [ 31.795010][ C1] kasan_save_stack+0x28/0x60 [ 31.795862][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.796990][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.797682][ C1] __d_alloc+0x2c/0x1f0 [ 31.798419][ C1] d_alloc+0x1c/0xa0 [ 31.799138][ C1] d_alloc_parallel+0x6c/0x4a0 [ 31.799820][ C1] __lookup_slow+0x5c/0x14c [ 31.800499][ C1] lookup_one_len+0x94/0xa4 [ 31.801252][ C1] start_creating.part.0+0x74/0x160 [ 31.802033][ C1] __debugfs_create_file+0x74/0x1fc [ 31.803282][ C1] debugfs_create_file+0x2c/0x40 [ 31.804043][ C1] bdi_register_va+0x110/0x214 [ 31.804796][ C1] bdi_register+0x58/0x80 [ 31.805532][ C1] __device_add_disk+0x40c/0x490 [ 31.806406][ C1] device_add_disk+0x14/0x20 [ 31.807157][ C1] loop_add+0x1f4/0x260 [ 31.807897][ C1] loop_init+0x104/0x158 [ 31.808606][ C1] do_one_initcall+0x50/0x1b0 [ 31.809522][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.810274][ C1] kernel_init+0x14/0x118 [ 31.810926][ C1] ret_from_fork+0x10/0x34 [ 31.811618][ C1] ---[ end trace 725733a855eeddb9 ]--- [ 31.812931][ C1] ------------[ cut here ]------------ [ 31.814399][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.815753][ C1] Modules linked in: [ 31.816465][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.817902][ C1] Hardware name: linux,dummy-virt (DT) [ 31.819645][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.820534][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.821305][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.822068][ C1] sp : ffff80001000be30 [ 31.822722][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.824001][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.825094][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.826263][ C1] x23: 0000000000000080 x22: 000000072844a260 [ 31.827371][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.828525][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 31.829629][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.830824][ C1] x15: 000039597c003202 x14: 0000000000000098 [ 31.831874][ C1] x13: 0000000000000001 x12: 0000000000000032 [ 31.833199][ C1] x11: 0000000000000001 x10: 0000000000000098 [ 31.834393][ C1] x9 : 0000000002c72842 x8 : 00000007277c7990 [ 31.835545][ C1] x7 : 7fffffffffffffff x6 : 00000007277c7990 [ 31.836632][ C1] x5 : 00000007277c7990 x4 : fdff000003ac5498 [ 31.837721][ C1] x3 : 00000007287ac590 x2 : 00000007277c7990 [ 31.838822][ C1] x1 : 00000007287ac590 x0 : 0000000000000003 [ 31.839743][ C1] Call trace: [ 31.840241][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.841018][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.841781][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.843083][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.843917][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.844970][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.845775][ C1] gic_handle_irq+0x50/0xd0 [ 31.846555][ C1] el1_irq+0xb4/0x180 [ 31.847321][ C1] arch_stack_walk+0x58/0x16c [ 31.848172][ C1] stack_trace_save+0x50/0x80 [ 31.849096][ C1] kasan_save_stack+0x28/0x60 [ 31.850051][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.850795][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.851587][ C1] __d_alloc+0x2c/0x1f0 [ 31.853376][ C1] d_alloc+0x1c/0xa0 [ 31.854045][ C1] d_alloc_parallel+0x6c/0x4a0 [ 31.854798][ C1] __lookup_slow+0x5c/0x14c [ 31.855525][ C1] lookup_one_len+0x94/0xa4 [ 31.856691][ C1] start_creating.part.0+0x74/0x160 [ 31.857484][ C1] __debugfs_create_file+0x74/0x1fc [ 31.858362][ C1] debugfs_create_file+0x2c/0x40 [ 31.859107][ C1] bdi_register_va+0x110/0x214 [ 31.859846][ C1] bdi_register+0x58/0x80 [ 31.860578][ C1] __device_add_disk+0x40c/0x490 [ 31.861332][ C1] device_add_disk+0x14/0x20 [ 31.862996][ C1] loop_add+0x1f4/0x260 [ 31.863795][ C1] loop_init+0x104/0x158 [ 31.864563][ C1] do_one_initcall+0x50/0x1b0 [ 31.865316][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.866239][ C1] kernel_init+0x14/0x118 [ 31.866999][ C1] ret_from_fork+0x10/0x34 [ 31.867795][ C1] ---[ end trace 725733a855eeddba ]--- [ 31.969462][ C1] ------------[ cut here ]------------ [ 31.970223][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.971585][ C1] Modules linked in: [ 31.972645][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 31.974026][ C1] Hardware name: linux,dummy-virt (DT) [ 31.974809][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.975671][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.976478][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.977267][ C1] sp : ffff80001000be30 [ 31.977857][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.978972][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 31.979956][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.980874][ C1] x23: 0000000000000080 x22: 00000007319d0150 [ 31.981843][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 31.983790][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 31.984888][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.985956][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 31.987088][ C1] x13: 0000000000000003 x12: 0000000000000040 [ 31.988323][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 31.989397][ C1] x9 : ffff8000127bbe78 x8 : 00000007316b7190 [ 31.990330][ C1] x7 : 7fffffffffffffff x6 : 00000007316b7190 [ 31.991314][ C1] x5 : 00000007316b7190 x4 : fdff000003ac5498 [ 31.992321][ C1] x3 : 000000073269bd90 x2 : 00000007316b7190 [ 31.993475][ C1] x1 : 000000073269bd90 x0 : 000000000000000a [ 31.994530][ C1] Call trace: [ 31.995043][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.995847][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.996699][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.997410][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.998166][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.998949][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.999677][ C1] gic_handle_irq+0x50/0xd0 [ 32.000311][ C1] el1_irq+0xb4/0x180 [ 32.001059][ C1] arch_cpu_idle+0x18/0x30 [ 32.001807][ C1] default_idle_call+0x24/0x6c [ 32.002929][ C1] do_idle+0x22c/0x29c [ 32.003597][ C1] cpu_startup_entry+0x24/0x70 [ 32.004364][ C1] secondary_start_kernel+0x164/0x190 [ 32.005170][ C1] 0x0 [ 32.005718][ C1] ---[ end trace 725733a855eeddbb ]--- [ 32.007017][ C1] ------------[ cut here ]------------ [ 32.007670][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.008935][ C1] Modules linked in: [ 32.009591][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.010734][ C1] Hardware name: linux,dummy-virt (DT) [ 32.011434][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.012352][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.013229][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.014031][ C1] sp : ffff80001000be30 [ 32.014544][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.015921][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.016947][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.018017][ C1] x23: 0000000000000080 x22: 0000000733d9e920 [ 32.018997][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.019976][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.021045][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.022167][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 32.023362][ C1] x13: 00005550d2296f8e x12: 000000000000023b [ 32.024502][ C1] x11: 0000000000000019 x10: 0000000000000000 [ 32.025620][ C1] x9 : ffff00007fbd9c40 x8 : 0000000733680990 [ 32.026657][ C1] x7 : 7fffffffffffffff x6 : 0000000733680990 [ 32.027668][ C1] x5 : 0000000733680990 x4 : fdff000003ac5498 [ 32.028632][ C1] x3 : 0000000734665590 x2 : 0000000733680990 [ 32.029635][ C1] x1 : 0000000734665590 x0 : 0000000000000002 [ 32.030682][ C1] Call trace: [ 32.031229][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.031972][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.033116][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.033927][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.034778][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.035591][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.036476][ C1] gic_handle_irq+0x50/0xd0 [ 32.037204][ C1] el1_irq+0xb4/0x180 [ 32.037870][ C1] arch_cpu_idle+0x18/0x30 [ 32.038615][ C1] default_idle_call+0x24/0x6c [ 32.039388][ C1] do_idle+0x22c/0x29c [ 32.039996][ C1] cpu_startup_entry+0x24/0x70 [ 32.040751][ C1] secondary_start_kernel+0x164/0x190 [ 32.041547][ C1] 0x0 [ 32.042138][ C1] ---[ end trace 725733a855eeddbc ]--- [ 32.043443][ C1] ------------[ cut here ]------------ [ 32.044176][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.045501][ C1] Modules linked in: [ 32.046267][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.047550][ C1] Hardware name: linux,dummy-virt (DT) [ 32.048263][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.049136][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.049860][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.050608][ C1] sp : ffff80001000be30 [ 32.051099][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.052724][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.054292][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.055265][ C1] x23: 0000000000000080 x22: 0000000736028dd0 [ 32.056307][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.057329][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.058340][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.059453][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 32.060452][ C1] x13: ffff8000126a7000 x12: 000000000000017f [ 32.061413][ C1] x11: 0000000000000023 x10: 0000000000000000 [ 32.062539][ C1] x9 : ffff00007fbd9c40 x8 : 000000073564a190 [ 32.063733][ C1] x7 : 7fffffffffffffff x6 : 000000073564a190 [ 32.064776][ C1] x5 : 000000073564a190 x4 : fdff000003ac5498 [ 32.065790][ C1] x3 : 000000073662ed90 x2 : 000000073564a190 [ 32.066786][ C1] x1 : 000000073662ed90 x0 : 0000000000000002 [ 32.067772][ C1] Call trace: [ 32.068282][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.069043][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.069831][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.070570][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.071354][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.072119][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.073193][ C1] gic_handle_irq+0x50/0xd0 [ 32.073959][ C1] el1_irq+0xb4/0x180 [ 32.074662][ C1] arch_cpu_idle+0x18/0x30 [ 32.075375][ C1] default_idle_call+0x24/0x6c [ 32.076102][ C1] do_idle+0x22c/0x29c [ 32.076719][ C1] cpu_startup_entry+0x24/0x70 [ 32.077383][ C1] secondary_start_kernel+0x164/0x190 [ 32.078079][ C1] 0x0 [ 32.078705][ C1] ---[ end trace 725733a855eeddbd ]--- [ 32.179910][ C1] ------------[ cut here ]------------ [ 32.181478][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.183607][ C1] Modules linked in: [ 32.184324][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.185235][ C1] Hardware name: linux,dummy-virt (DT) [ 32.185681][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.186274][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.186988][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.187670][ C1] sp : ffff80001000be30 [ 32.188238][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.189428][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.190495][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.191551][ C1] x23: 0000000000000080 x22: 000000073e282340 [ 32.192671][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.193655][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 32.194690][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.197696][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.198715][ C1] x13: 0000000000078ceb x12: 0000000000000040 [ 32.199706][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 32.201051][ C1] x9 : ffff8000127bbe78 x8 : 000000073d570190 [ 32.202124][ C1] x7 : 7fffffffffffffff x6 : 000000073d570190 [ 32.203299][ C1] x5 : 000000073d570190 x4 : fdff000003ac5498 [ 32.204454][ C1] x3 : 000000073e554d90 x2 : 000000073d570190 [ 32.205897][ C1] x1 : 000000073e554d90 x0 : 0000000000000008 [ 32.206866][ C1] Call trace: [ 32.207341][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.208091][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.208793][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.209524][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.210275][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.211082][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.211764][ C1] gic_handle_irq+0x50/0xd0 [ 32.212410][ C1] el1_irq+0xb4/0x180 [ 32.213666][ C1] kmem_cache_alloc+0x4c/0x33c [ 32.214393][ C1] security_inode_alloc+0x2c/0x94 [ 32.215108][ C1] inode_init_always+0xc4/0x1d4 [ 32.215813][ C1] alloc_inode+0x3c/0xdc [ 32.216447][ C1] new_inode+0x1c/0xb4 [ 32.217036][ C1] debugfs_create_dir+0x64/0x1e0 [ 32.217678][ C1] blk_register_queue+0xbc/0x220 [ 32.218383][ C1] __device_add_disk+0x328/0x490 [ 32.219065][ C1] device_add_disk+0x14/0x20 [ 32.219591][ C1] loop_add+0x1f4/0x260 [ 32.219991][ C1] loop_init+0x104/0x158 [ 32.220350][ C1] do_one_initcall+0x50/0x1b0 [ 32.220761][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.221325][ C1] kernel_init+0x14/0x118 [ 32.221721][ C1] ret_from_fork+0x10/0x34 [ 32.222179][ C1] ---[ end trace 725733a855eeddbe ]--- [ 32.223406][ C1] ------------[ cut here ]------------ [ 32.224017][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.225376][ C1] Modules linked in: [ 32.226146][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.227723][ C1] Hardware name: linux,dummy-virt (DT) [ 32.228575][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.229840][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.231173][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.232035][ C1] sp : ffff80001000be30 [ 32.232659][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.234228][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.237270][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.238488][ C1] x23: 0000000000000080 x22: 0000000740c0b020 [ 32.239546][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.240692][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 32.241762][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.246299][ C1] x15: 0000322f3cc3a32e x14: 000000000000028b [ 32.247407][ C1] x13: 0000000000000001 x12: 0000000000000035 [ 32.248469][ C1] x11: 0000000000000001 x10: 000000000000028b [ 32.249902][ C1] x9 : 0000000002c39fea x8 : 000000074051e590 [ 32.251007][ C1] x7 : 7fffffffffffffff x6 : 000000074051e590 [ 32.252123][ C1] x5 : 000000074051e590 x4 : fdff000003ac5498 [ 32.253501][ C1] x3 : 0000000741503190 x2 : 000000074051e590 [ 32.254699][ C1] x1 : 0000000741503190 x0 : 0000000000000003 [ 32.255800][ C1] Call trace: [ 32.256539][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.257439][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.258205][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.258969][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.259910][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.261092][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.261860][ C1] gic_handle_irq+0x50/0xd0 [ 32.262573][ C1] el1_irq+0xb4/0x180 [ 32.263454][ C1] kmem_cache_alloc+0x4c/0x33c [ 32.264074][ C1] security_inode_alloc+0x2c/0x94 [ 32.264842][ C1] inode_init_always+0xc4/0x1d4 [ 32.265647][ C1] alloc_inode+0x3c/0xdc [ 32.266371][ C1] new_inode+0x1c/0xb4 [ 32.267132][ C1] debugfs_create_dir+0x64/0x1e0 [ 32.267898][ C1] blk_register_queue+0xbc/0x220 [ 32.268761][ C1] __device_add_disk+0x328/0x490 [ 32.269507][ C1] device_add_disk+0x14/0x20 [ 32.270420][ C1] loop_add+0x1f4/0x260 [ 32.271147][ C1] loop_init+0x104/0x158 [ 32.271851][ C1] do_one_initcall+0x50/0x1b0 [ 32.273008][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.273753][ C1] kernel_init+0x14/0x118 [ 32.274451][ C1] ret_from_fork+0x10/0x34 [ 32.275125][ C1] ---[ end trace 725733a855eeddbf ]--- [ 32.276513][ C1] ------------[ cut here ]------------ [ 32.277168][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.278401][ C1] Modules linked in: [ 32.279029][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.280168][ C1] Hardware name: linux,dummy-virt (DT) [ 32.280849][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.281693][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.283850][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.284609][ C1] sp : ffff80001000be30 [ 32.285285][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.286392][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.287522][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.288686][ C1] x23: 0000000000000080 x22: 0000000743e6d5a0 [ 32.289804][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.291044][ C1] x19: fdff000003ac5498 x18: 00000000fffffffb [ 32.292057][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.293843][ C1] x15: 00003a9baaa99edc x14: 00000000000000fb [ 32.294887][ C1] x13: 0000000000000001 x12: 0000000000000033 [ 32.295977][ C1] x11: 0000000000000001 x10: 00000000000000fb [ 32.297042][ C1] x9 : 0000000002d31d49 x8 : 00000007434cc990 [ 32.298112][ C1] x7 : 7fffffffffffffff x6 : 00000007434cc990 [ 32.299137][ C1] x5 : 00000007434cc990 x4 : fdff000003ac5498 [ 32.300258][ C1] x3 : 00000007444b1590 x2 : 00000007434cc990 [ 32.301317][ C1] x1 : 00000007444b1590 x0 : 0000000000000003 [ 32.302635][ C1] Call trace: [ 32.304917][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.306127][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.306956][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.307810][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.309115][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.309959][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.310752][ C1] gic_handle_irq+0x50/0xd0 [ 32.311530][ C1] el1_irq+0xb4/0x180 [ 32.312184][ C1] kmem_cache_alloc+0x4c/0x33c [ 32.313477][ C1] security_inode_alloc+0x2c/0x94 [ 32.314386][ C1] inode_init_always+0xc4/0x1d4 [ 32.315257][ C1] alloc_inode+0x3c/0xdc [ 32.316071][ C1] new_inode+0x1c/0xb4 [ 32.316805][ C1] debugfs_create_dir+0x64/0x1e0 [ 32.317927][ C1] blk_register_queue+0xbc/0x220 [ 32.319207][ C1] __device_add_disk+0x328/0x490 [ 32.320154][ C1] device_add_disk+0x14/0x20 [ 32.321068][ C1] loop_add+0x1f4/0x260 [ 32.321859][ C1] loop_init+0x104/0x158 [ 32.323127][ C1] do_one_initcall+0x50/0x1b0 [ 32.323929][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.325022][ C1] kernel_init+0x14/0x118 [ 32.325881][ C1] ret_from_fork+0x10/0x34 [ 32.326774][ C1] ---[ end trace 725733a855eeddc0 ]--- [ 32.428523][ C1] ------------[ cut here ]------------ [ 32.429304][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.430920][ C1] Modules linked in: [ 32.431787][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.433617][ C1] Hardware name: linux,dummy-virt (DT) [ 32.434389][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.435203][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.435949][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.436752][ C1] sp : ffff80001000be30 [ 32.437378][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.438492][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.439668][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.440770][ C1] x23: 0000000000000080 x22: 000000074cf527f0 [ 32.441852][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.442807][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.443872][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.444980][ C1] x15: 0000b0e65b9d9c9c x14: 0000000000000231 [ 32.445994][ C1] x13: 0000000000000001 x12: 0000000000000001 [ 32.447448][ C1] x11: 0000000000000001 x10: 0000000000000231 [ 32.448876][ C1] x9 : 0000000002de7f4a x8 : 000000074c3d7590 [ 32.450036][ C1] x7 : 7fffffffffffffff x6 : 000000074c3d7590 [ 32.451149][ C1] x5 : 000000074c3d7590 x4 : fdff000003ac5498 [ 32.452257][ C1] x3 : 000000074d3bc190 x2 : 000000074c3d7590 [ 32.453286][ C1] x1 : 000000074d3bc190 x0 : 0000000000000009 [ 32.454500][ C1] Call trace: [ 32.455062][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.456066][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.456864][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.457569][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.458365][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.459146][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.459900][ C1] gic_handle_irq+0x50/0xd0 [ 32.460704][ C1] el1_irq+0xb4/0x180 [ 32.461405][ C1] kmem_cache_alloc+0x130/0x33c [ 32.462167][ C1] __d_alloc+0x2c/0x1f0 [ 32.463164][ C1] d_alloc+0x1c/0xa0 [ 32.463849][ C1] d_alloc_parallel+0x6c/0x4a0 [ 32.464704][ C1] __lookup_slow+0x5c/0x14c [ 32.465552][ C1] lookup_one_len+0x94/0xa4 [ 32.466401][ C1] start_creating.part.0+0x74/0x160 [ 32.467228][ C1] __debugfs_create_file+0x74/0x1fc [ 32.468008][ C1] debugfs_create_file+0x2c/0x40 [ 32.470003][ C1] debugfs_create_files+0x5c/0x80 [ 32.470801][ C1] blk_mq_debugfs_register_hctx+0x6c/0x160 [ 32.471543][ C1] blk_mq_debugfs_register+0x98/0x104 [ 32.472504][ C1] blk_register_queue+0xe4/0x220 [ 32.473189][ C1] __device_add_disk+0x328/0x490 [ 32.473859][ C1] device_add_disk+0x14/0x20 [ 32.474971][ C1] loop_add+0x1f4/0x260 [ 32.475657][ C1] loop_init+0x104/0x158 [ 32.476293][ C1] do_one_initcall+0x50/0x1b0 [ 32.476949][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.477947][ C1] kernel_init+0x14/0x118 [ 32.479201][ C1] ret_from_fork+0x10/0x34 [ 32.479897][ C1] ---[ end trace 725733a855eeddc1 ]--- [ 32.481868][ C1] ------------[ cut here ]------------ [ 32.484746][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.486444][ C1] Modules linked in: [ 32.487136][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.488580][ C1] Hardware name: linux,dummy-virt (DT) [ 32.489462][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.490396][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.491259][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.492498][ C1] sp : ffff80001000be30 [ 32.493583][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.494771][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.495952][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.497155][ C1] x23: 0000000000000080 x22: 00000007501e9ba0 [ 32.498507][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.499850][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.501238][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.502865][ C1] x15: 00003c4fab64c184 x14: 000000000000008d [ 32.503834][ C1] x13: 0000000000000001 x12: 0000000000000033 [ 32.504920][ C1] x11: 0000000000000001 x10: 000000000000008d [ 32.506002][ C1] x9 : 0000000002dac47d x8 : 000000074f385990 [ 32.507192][ C1] x7 : 7fffffffffffffff x6 : 000000074f385990 [ 32.508386][ C1] x5 : 000000074f385990 x4 : fdff000003ac5498 [ 32.509458][ C1] x3 : 000000075036a590 x2 : 000000074f385990 [ 32.510718][ C1] x1 : 000000075036a590 x0 : 0000000000000003 [ 32.511992][ C1] Call trace: [ 32.512690][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.513490][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.514198][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.514916][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.515725][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.516518][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.517284][ C1] gic_handle_irq+0x50/0xd0 [ 32.518014][ C1] el1_irq+0xb4/0x180 [ 32.518794][ C1] kmem_cache_alloc+0x130/0x33c [ 32.519603][ C1] __d_alloc+0x2c/0x1f0 [ 32.520301][ C1] d_alloc+0x1c/0xa0 [ 32.520984][ C1] d_alloc_parallel+0x6c/0x4a0 [ 32.521744][ C1] __lookup_slow+0x5c/0x14c [ 32.522592][ C1] lookup_one_len+0x94/0xa4 [ 32.523501][ C1] start_creating.part.0+0x74/0x160 [ 32.524269][ C1] __debugfs_create_file+0x74/0x1fc [ 32.526669][ C1] debugfs_create_file+0x2c/0x40 [ 32.529378][ C1] debugfs_create_files+0x5c/0x80 [ 32.530174][ C1] blk_mq_debugfs_register_hctx+0x6c/0x160 [ 32.531002][ C1] blk_mq_debugfs_register+0x98/0x104 [ 32.531816][ C1] blk_register_queue+0xe4/0x220 [ 32.533307][ C1] __device_add_disk+0x328/0x490 [ 32.534593][ C1] device_add_disk+0x14/0x20 [ 32.535780][ C1] loop_add+0x1f4/0x260 [ 32.537400][ C1] loop_init+0x104/0x158 [ 32.539026][ C1] do_one_initcall+0x50/0x1b0 [ 32.539958][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.540902][ C1] kernel_init+0x14/0x118 [ 32.541734][ C1] ret_from_fork+0x10/0x34 [ 32.542857][ C1] ---[ end trace 725733a855eeddc2 ]--- [ 32.543978][ C1] ------------[ cut here ]------------ [ 32.544665][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.546120][ C1] Modules linked in: [ 32.547762][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.549082][ C1] Hardware name: linux,dummy-virt (DT) [ 32.549837][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.550759][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.551489][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.552164][ C1] sp : ffff80001000be30 [ 32.554668][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.555581][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.556398][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.557122][ C1] x23: 0000000000000080 x22: 0000000753d89740 [ 32.557900][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.558798][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.559741][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.560618][ C1] x15: 000032c013ecc652 x14: 00000000000002ef [ 32.561439][ C1] x13: 0000000000000001 x12: 000000000000003b [ 32.562525][ C1] x11: 0000000000000001 x10: 00000000000002ef [ 32.563376][ C1] x9 : 0000000002e54ee3 x8 : 0000000753318990 [ 32.564030][ C1] x7 : 7fffffffffffffff x6 : 0000000753318990 [ 32.564885][ C1] x5 : 0000000753318990 x4 : fdff000003ac5498 [ 32.565785][ C1] x3 : 00000007542fd590 x2 : 0000000753318990 [ 32.566611][ C1] x1 : 00000007542fd590 x0 : 0000000000000004 [ 32.567346][ C1] Call trace: [ 32.567800][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.568457][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.569108][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.569882][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.570588][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.571208][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.571855][ C1] gic_handle_irq+0x50/0xd0 [ 32.572749][ C1] el1_irq+0xb4/0x180 [ 32.573312][ C1] kmem_cache_alloc+0x130/0x33c [ 32.573813][ C1] __d_alloc+0x2c/0x1f0 [ 32.574390][ C1] d_alloc+0x1c/0xa0 [ 32.574909][ C1] d_alloc_parallel+0x6c/0x4a0 [ 32.575496][ C1] __lookup_slow+0x5c/0x14c [ 32.575931][ C1] lookup_one_len+0x94/0xa4 [ 32.576432][ C1] start_creating.part.0+0x74/0x160 [ 32.576864][ C1] __debugfs_create_file+0x74/0x1fc [ 32.577375][ C1] debugfs_create_file+0x2c/0x40 [ 32.577846][ C1] debugfs_create_files+0x5c/0x80 [ 32.578388][ C1] blk_mq_debugfs_register_hctx+0x6c/0x160 [ 32.578863][ C1] blk_mq_debugfs_register+0x98/0x104 [ 32.579427][ C1] blk_register_queue+0xe4/0x220 [ 32.579994][ C1] __device_add_disk+0x328/0x490 [ 32.580505][ C1] device_add_disk+0x14/0x20 [ 32.580919][ C1] loop_add+0x1f4/0x260 [ 32.581409][ C1] loop_init+0x104/0x158 [ 32.581924][ C1] do_one_initcall+0x50/0x1b0 [ 32.582968][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.583613][ C1] kernel_init+0x14/0x118 [ 32.584097][ C1] ret_from_fork+0x10/0x34 [ 32.584590][ C1] ---[ end trace 725733a855eeddc3 ]--- [ 32.685656][ C1] ------------[ cut here ]------------ [ 32.686521][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.687849][ C1] Modules linked in: [ 32.688629][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.690565][ C1] Hardware name: linux,dummy-virt (DT) [ 32.691260][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.692110][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.692947][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.693729][ C1] sp : ffff80001000be30 [ 32.694367][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.695447][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.696515][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.697653][ C1] x23: 0000000000000080 x22: 000000075c4cc450 [ 32.698749][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.699917][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.700997][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.702296][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.703242][ C1] x13: 0000000000078c5b x12: 0000000000000040 [ 32.704409][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 32.705579][ C1] x9 : ffff8000127bbe78 x8 : 000000075c223590 [ 32.706788][ C1] x7 : 7fffffffffffffff x6 : 000000075c223590 [ 32.707966][ C1] x5 : 000000075c223590 x4 : fdff000003ac5498 [ 32.709021][ C1] x3 : 000000075d208190 x2 : 000000075c223590 [ 32.710357][ C1] x1 : 000000075d208190 x0 : 0000000000000009 [ 32.711302][ C1] Call trace: [ 32.711767][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.712778][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.713593][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.714408][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.715187][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.715960][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.716702][ C1] gic_handle_irq+0x50/0xd0 [ 32.717413][ C1] el1_irq+0xb4/0x180 [ 32.718076][ C1] kasan_save_stack+0x28/0x60 [ 32.718833][ C1] __kasan_kmalloc+0xc8/0x100 [ 32.719561][ C1] __kmalloc+0x220/0x3d0 [ 32.720218][ C1] blk_stat_alloc_callback+0x90/0x120 [ 32.720835][ C1] wbt_init+0x6c/0x1d0 [ 32.721402][ C1] wbt_enable_default+0x48/0x80 [ 32.722025][ C1] blk_register_queue+0x120/0x220 [ 32.723931][ C1] __device_add_disk+0x328/0x490 [ 32.724719][ C1] device_add_disk+0x14/0x20 [ 32.725489][ C1] loop_add+0x1f4/0x260 [ 32.726221][ C1] loop_init+0x104/0x158 [ 32.726851][ C1] do_one_initcall+0x50/0x1b0 [ 32.727567][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.728293][ C1] kernel_init+0x14/0x118 [ 32.728947][ C1] ret_from_fork+0x10/0x34 [ 32.729696][ C1] ---[ end trace 725733a855eeddc4 ]--- [ 32.731021][ C1] ------------[ cut here ]------------ [ 32.731565][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.732789][ C1] Modules linked in: [ 32.733472][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.734794][ C1] Hardware name: linux,dummy-virt (DT) [ 32.735431][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.736219][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.736907][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.737586][ C1] sp : ffff80001000be30 [ 32.738182][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.739435][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.740518][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.741456][ C1] x23: 0000000000000080 x22: 000000075f01fe40 [ 32.742559][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.743680][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.744756][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.745821][ C1] x15: 000064f84e05e1ca x14: 00000000000001a0 [ 32.746917][ C1] x13: 0000000000000001 x12: 000000000000001c [ 32.747993][ C1] x11: 0000000000000001 x10: 00000000000001a0 [ 32.749042][ C1] x9 : 0000000002e03f7d x8 : 000000075e1ecd90 [ 32.750132][ C1] x7 : 7fffffffffffffff x6 : 000000075e1ecd90 [ 32.751144][ C1] x5 : 000000075e1ecd90 x4 : fdff000003ac5498 [ 32.751996][ C1] x3 : 000000075f1d1990 x2 : 000000075e1ecd90 [ 32.753987][ C1] x1 : 000000075f1d1990 x0 : 0000000000000002 [ 32.755081][ C1] Call trace: [ 32.757551][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.758438][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.759622][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.760496][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.763047][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.764081][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.764925][ C1] gic_handle_irq+0x50/0xd0 [ 32.766238][ C1] el1_irq+0xb4/0x180 [ 32.767007][ C1] kasan_save_stack+0x28/0x60 [ 32.767771][ C1] __kasan_kmalloc+0xc8/0x100 [ 32.769009][ C1] __kmalloc+0x220/0x3d0 [ 32.770649][ C1] blk_stat_alloc_callback+0x90/0x120 [ 32.771374][ C1] wbt_init+0x6c/0x1d0 [ 32.771934][ C1] wbt_enable_default+0x48/0x80 [ 32.773373][ C1] blk_register_queue+0x120/0x220 [ 32.774211][ C1] __device_add_disk+0x328/0x490 [ 32.774972][ C1] device_add_disk+0x14/0x20 [ 32.775705][ C1] loop_add+0x1f4/0x260 [ 32.776418][ C1] loop_init+0x104/0x158 [ 32.777116][ C1] do_one_initcall+0x50/0x1b0 [ 32.777868][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.778690][ C1] kernel_init+0x14/0x118 [ 32.779439][ C1] ret_from_fork+0x10/0x34 [ 32.780169][ C1] ---[ end trace 725733a855eeddc5 ]--- [ 32.781349][ C1] ------------[ cut here ]------------ [ 32.781946][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.783211][ C1] Modules linked in: [ 32.783924][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.785139][ C1] Hardware name: linux,dummy-virt (DT) [ 32.785840][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.786823][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.787641][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.788454][ C1] sp : ffff80001000be30 [ 32.789042][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.790103][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.791093][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.792089][ C1] x23: 0000000000000080 x22: 0000000761fe08e0 [ 32.793433][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.794534][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.795617][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.796659][ C1] x15: 0000410ba8577a67 x14: 00000000000001d1 [ 32.797713][ C1] x13: 0000000000000001 x12: 0000000000000030 [ 32.798926][ C1] x11: 0000000000000001 x10: 00000000000001d1 [ 32.799993][ C1] x9 : 0000000002e1258f x8 : 000000076119b190 [ 32.801072][ C1] x7 : 7fffffffffffffff x6 : 000000076119b190 [ 32.801922][ C1] x5 : 000000076119b190 x4 : fdff000003ac5498 [ 32.803145][ C1] x3 : 000000076217fd90 x2 : 000000076119b190 [ 32.804183][ C1] x1 : 000000076217fd90 x0 : 0000000000000003 [ 32.805212][ C1] Call trace: [ 32.805810][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.806615][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.807420][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.808139][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.808927][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.809729][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.810522][ C1] gic_handle_irq+0x50/0xd0 [ 32.811189][ C1] el1_irq+0xb4/0x180 [ 32.811765][ C1] kasan_save_stack+0x28/0x60 [ 32.812650][ C1] __kasan_kmalloc+0xc8/0x100 [ 32.813398][ C1] __kmalloc+0x220/0x3d0 [ 32.814177][ C1] blk_stat_alloc_callback+0x90/0x120 [ 32.815071][ C1] wbt_init+0x6c/0x1d0 [ 32.815791][ C1] wbt_enable_default+0x48/0x80 [ 32.816676][ C1] blk_register_queue+0x120/0x220 [ 32.817568][ C1] __device_add_disk+0x328/0x490 [ 32.818407][ C1] device_add_disk+0x14/0x20 [ 32.819328][ C1] loop_add+0x1f4/0x260 [ 32.821238][ C1] loop_init+0x104/0x158 [ 32.821804][ C1] do_one_initcall+0x50/0x1b0 [ 32.822550][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.823278][ C1] kernel_init+0x14/0x118 [ 32.824003][ C1] ret_from_fork+0x10/0x34 [ 32.824762][ C1] ---[ end trace 725733a855eeddc6 ]--- [ 32.926349][ C1] ------------[ cut here ]------------ [ 32.927064][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.928675][ C1] Modules linked in: [ 32.929450][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.930802][ C1] Hardware name: linux,dummy-virt (DT) [ 32.931404][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.932167][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.933042][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.933956][ C1] sp : ffff80001000be30 [ 32.937508][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.938668][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.939616][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.940701][ C1] x23: 0000000000000080 x22: 000000076aa039e0 [ 32.941644][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.942736][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.943888][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.944972][ C1] x15: 0000a8f629e7d066 x14: 00000000000000b7 [ 32.946011][ C1] x13: 0000000000000001 x12: 0000000000000004 [ 32.947093][ C1] x11: 0000000000000001 x10: 00000000000000b7 [ 32.948247][ C1] x9 : 0000000002dcbf6d x8 : 000000076a0a5d90 [ 32.949271][ C1] x7 : 7fffffffffffffff x6 : 000000076a0a5d90 [ 32.950331][ C1] x5 : 000000076a0a5d90 x4 : fdff000003ac5498 [ 32.951310][ C1] x3 : 000000076b08a990 x2 : 000000076a0a5d90 [ 32.952247][ C1] x1 : 000000076b08a990 x0 : 0000000000000009 [ 32.953337][ C1] Call trace: [ 32.953911][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.954751][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.955576][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.956390][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.957283][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.958198][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.959197][ C1] gic_handle_irq+0x50/0xd0 [ 32.959924][ C1] el1_irq+0xb4/0x180 [ 32.960604][ C1] stack_trace_consume_entry+0x1c/0x70 [ 32.961433][ C1] stack_trace_save+0x50/0x80 [ 32.962054][ C1] kasan_save_stack+0x28/0x60 [ 32.963026][ C1] __kasan_kmalloc+0xc8/0x100 [ 32.963720][ C1] sbitmap_queue_init_node+0x198/0x23c [ 32.964523][ C1] blk_mq_init_tags+0xd4/0x144 [ 32.965398][ C1] blk_mq_alloc_rq_map+0x50/0xe4 [ 32.966266][ C1] __blk_mq_alloc_map_and_request+0x34/0xf0 [ 32.967078][ C1] blk_mq_alloc_tag_set+0x168/0x36c [ 32.967798][ C1] loop_add+0xd4/0x260 [ 32.968526][ C1] loop_init+0x104/0x158 [ 32.969243][ C1] do_one_initcall+0x50/0x1b0 [ 32.969971][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.970800][ C1] kernel_init+0x14/0x118 [ 32.971447][ C1] ret_from_fork+0x10/0x34 [ 32.972122][ C1] ---[ end trace 725733a855eeddc7 ]--- [ 32.973755][ C1] ------------[ cut here ]------------ [ 32.974525][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.975807][ C1] Modules linked in: [ 32.976537][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 32.977810][ C1] Hardware name: linux,dummy-virt (DT) [ 32.978592][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.979525][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.980336][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.981067][ C1] sp : ffff80001000be30 [ 32.981556][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.984223][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 32.985298][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.986371][ C1] x23: 0000000000000080 x22: 000000076d74dfc0 [ 32.987418][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 32.988355][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 32.989312][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.990381][ C1] x15: 0000451a6ce7d734 x14: 00000000000001e0 [ 32.991321][ C1] x13: 0000000000000001 x12: 000000000000002d [ 32.992290][ C1] x11: 0000000000000001 x10: 00000000000001e0 [ 32.993314][ C1] x9 : 0000000002e16d8e x8 : 000000076d054190 [ 32.994377][ C1] x7 : 7fffffffffffffff x6 : 000000076d054190 [ 32.995416][ C1] x5 : 000000076d054190 x4 : fdff000003ac5498 [ 32.996455][ C1] x3 : 000000076e038d90 x2 : 000000076d054190 [ 32.997622][ C1] x1 : 000000076e038d90 x0 : 0000000000000003 [ 32.998683][ C1] Call trace: [ 32.999235][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.000006][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.000741][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.001405][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.002135][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.002940][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.003703][ C1] gic_handle_irq+0x50/0xd0 [ 33.004425][ C1] el1_irq+0xb4/0x180 [ 33.005079][ C1] stack_trace_consume_entry+0x1c/0x70 [ 33.005846][ C1] stack_trace_save+0x50/0x80 [ 33.006589][ C1] kasan_save_stack+0x28/0x60 [ 33.007312][ C1] __kasan_kmalloc+0xc8/0x100 [ 33.008044][ C1] sbitmap_queue_init_node+0x198/0x23c [ 33.008824][ C1] blk_mq_init_tags+0xd4/0x144 [ 33.009563][ C1] blk_mq_alloc_rq_map+0x50/0xe4 [ 33.010348][ C1] __blk_mq_alloc_map_and_request+0x34/0xf0 [ 33.011094][ C1] blk_mq_alloc_tag_set+0x168/0x36c [ 33.011701][ C1] loop_add+0xd4/0x260 [ 33.012547][ C1] loop_init+0x104/0x158 [ 33.013150][ C1] do_one_initcall+0x50/0x1b0 [ 33.013820][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.014617][ C1] kernel_init+0x14/0x118 [ 33.015325][ C1] ret_from_fork+0x10/0x34 [ 33.015979][ C1] ---[ end trace 725733a855eeddc8 ]--- [ 33.017264][ C1] ------------[ cut here ]------------ [ 33.017952][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.019272][ C1] Modules linked in: [ 33.020026][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 33.021236][ C1] Hardware name: linux,dummy-virt (DT) [ 33.021799][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.022943][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.025064][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.025855][ C1] sp : ffff80001000be30 [ 33.026505][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.027604][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 33.028682][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.029734][ C1] x23: 0000000000000080 x22: 00000007700d4c00 [ 33.030894][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 33.031748][ C1] x19: fdff000003ac5498 x18: 00000000fffffffe [ 33.033211][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.034291][ C1] x15: 00004bd89f8530ec x14: 00000000000003f0 [ 33.035351][ C1] x13: 0000000000000001 x12: 0000000000000029 [ 33.036433][ C1] x11: 0000000000000001 x10: 00000000000003f0 [ 33.037410][ C1] x9 : 0000000002e9b411 x8 : 0000000770002590 [ 33.038418][ C1] x7 : 7fffffffffffffff x6 : 0000000770002590 [ 33.039596][ C1] x5 : 0000000770002590 x4 : fdff000003ac5498 [ 33.040667][ C1] x3 : 0000000770fe7190 x2 : 0000000770002590 [ 33.041591][ C1] x1 : 0000000770fe7190 x0 : 0000000000000003 [ 33.043013][ C1] Call trace: [ 33.043581][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.044417][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.045207][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.045986][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.046840][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.047654][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.048451][ C1] gic_handle_irq+0x50/0xd0 [ 33.049192][ C1] el1_irq+0xb4/0x180 [ 33.049874][ C1] stack_trace_consume_entry+0x1c/0x70 [ 33.050742][ C1] stack_trace_save+0x50/0x80 [ 33.051326][ C1] kasan_save_stack+0x28/0x60 [ 33.051957][ C1] __kasan_kmalloc+0xc8/0x100 [ 33.055213][ C1] sbitmap_queue_init_node+0x198/0x23c [ 33.056053][ C1] blk_mq_init_tags+0xd4/0x144 [ 33.056792][ C1] blk_mq_alloc_rq_map+0x50/0xe4 [ 33.057578][ C1] __blk_mq_alloc_map_and_request+0x34/0xf0 [ 33.058479][ C1] blk_mq_alloc_tag_set+0x168/0x36c [ 33.059309][ C1] loop_add+0xd4/0x260 [ 33.059987][ C1] loop_init+0x104/0x158 [ 33.060522][ C1] do_one_initcall+0x50/0x1b0 [ 33.061289][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.061928][ C1] kernel_init+0x14/0x118 [ 33.062906][ C1] ret_from_fork+0x10/0x34 [ 33.063621][ C1] ---[ end trace 725733a855eeddc9 ]--- [ 33.164770][ C1] ------------[ cut here ]------------ [ 33.165617][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.166861][ C1] Modules linked in: [ 33.167542][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 33.168752][ C1] Hardware name: linux,dummy-virt (DT) [ 33.169429][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.170312][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.171021][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.171712][ C1] sp : ffff80001000be30 [ 33.172270][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.173275][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 33.174277][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.175270][ C1] x23: 0000000000000080 x22: 0000000778db99b0 [ 33.176258][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 33.177247][ C1] x19: fdff000003ac5498 x18: 00000000fffffffd [ 33.178277][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.179246][ C1] x15: 0000000000000020 x14: ffffffffffffffff [ 33.180229][ C1] x13: f0ff000004912bb8 x12: 0000000000000040 [ 33.181225][ C1] x11: f6ff000003400260 x10: f6ff000003400262 [ 33.184641][ C1] x9 : ffff8000127bbe78 x8 : 0000000777f28590 [ 33.185713][ C1] x7 : 7fffffffffffffff x6 : 0000000777f28590 [ 33.186810][ C1] x5 : 0000000777f28590 x4 : fdff000003ac5498 [ 33.187876][ C1] x3 : 0000000778f0d190 x2 : 0000000777f28590 [ 33.188937][ C1] x1 : 0000000778f0d190 x0 : 0000000000000008 [ 33.190014][ C1] Call trace: [ 33.190621][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.191308][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.191948][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.193467][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.194217][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.194919][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.195633][ C1] gic_handle_irq+0x50/0xd0 [ 33.196351][ C1] el1_irq+0xb4/0x180 [ 33.196979][ C1] idr_alloc_u32+0x64/0xf0 [ 33.197638][ C1] idr_alloc_cyclic+0x68/0xe4 [ 33.198391][ C1] __kernfs_new_node+0xa8/0x210 [ 33.199091][ C1] kernfs_new_node+0x48/0x70 [ 33.199774][ C1] __kernfs_create_file+0x30/0x160 [ 33.200801][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 33.201876][ C1] sysfs_merge_group+0x84/0x120 [ 33.204398][ C1] dpm_sysfs_add+0x100/0x130 [ 33.205091][ C1] device_add+0x2ec/0x7d0 [ 33.205818][ C1] device_create_groups_vargs+0x108/0x174 [ 33.206556][ C1] device_create+0x5c/0x8c [ 33.207254][ C1] bdi_register_va+0x80/0x214 [ 33.207928][ C1] bdi_register+0x58/0x80 [ 33.208554][ C1] __device_add_disk+0x40c/0x490 [ 33.209274][ C1] device_add_disk+0x14/0x20 [ 33.209969][ C1] loop_add+0x1f4/0x260 [ 33.210632][ C1] loop_init+0x104/0x158 [ 33.211301][ C1] do_one_initcall+0x50/0x1b0 [ 33.211967][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.213511][ C1] kernel_init+0x14/0x118 [ 33.214207][ C1] ret_from_fork+0x10/0x34 [ 33.214916][ C1] ---[ end trace 725733a855eeddca ]--- [ 33.216150][ C1] ------------[ cut here ]------------ [ 33.216789][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.217946][ C1] Modules linked in: [ 33.218658][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 33.219843][ C1] Hardware name: linux,dummy-virt (DT) [ 33.220543][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.221372][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.222066][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.224038][ C1] sp : ffff80001000be30 [ 33.224659][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.225724][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 33.226853][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.227918][ C1] x23: 0000000000000080 x22: 000000077bec0da0 [ 33.229135][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 33.230321][ C1] x19: fdff000003ac5498 x18: 00000000fffffffd [ 33.231300][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.232176][ C1] x15: 0000388116ddc18e x14: 00000000000001aa [ 33.233894][ C1] x13: 0000000000000001 x12: 0000000000000037 [ 33.234890][ C1] x11: 0000000000000001 x10: 00000000000001aa [ 33.235890][ C1] x9 : 0000000002e51e1b x8 : 000000077bebb590 [ 33.236855][ C1] x7 : 7fffffffffffffff x6 : 000000077bebb590 [ 33.237880][ C1] x5 : 000000077bebb590 x4 : fdff000003ac5498 [ 33.238911][ C1] x3 : 000000077cea0190 x2 : 000000077bebb590 [ 33.239891][ C1] x1 : 000000077cea0190 x0 : 0000000000000004 [ 33.240857][ C1] Call trace: [ 33.241339][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.242141][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.243988][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.244647][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.245354][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.246167][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.246896][ C1] gic_handle_irq+0x50/0xd0 [ 33.247557][ C1] el1_irq+0xb4/0x180 [ 33.248239][ C1] idr_alloc_u32+0x64/0xf0 [ 33.248923][ C1] idr_alloc_cyclic+0x68/0xe4 [ 33.249609][ C1] __kernfs_new_node+0xa8/0x210 [ 33.250350][ C1] kernfs_new_node+0x48/0x70 [ 33.251030][ C1] __kernfs_create_file+0x30/0x160 [ 33.251681][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 33.252546][ C1] sysfs_merge_group+0x84/0x120 [ 33.253187][ C1] dpm_sysfs_add+0x100/0x130 [ 33.253816][ C1] device_add+0x2ec/0x7d0 [ 33.254499][ C1] device_create_groups_vargs+0x108/0x174 [ 33.255249][ C1] device_create+0x5c/0x8c [ 33.255889][ C1] bdi_register_va+0x80/0x214 [ 33.256512][ C1] bdi_register+0x58/0x80 [ 33.257123][ C1] __device_add_disk+0x40c/0x490 [ 33.257791][ C1] device_add_disk+0x14/0x20 [ 33.258469][ C1] loop_add+0x1f4/0x260 [ 33.259086][ C1] loop_init+0x104/0x158 [ 33.259671][ C1] do_one_initcall+0x50/0x1b0 [ 33.260310][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.261002][ C1] kernel_init+0x14/0x118 [ 33.261601][ C1] ret_from_fork+0x10/0x34 [ 33.262235][ C1] ---[ end trace 725733a855eeddcb ]--- [ 33.263575][ C1] ------------[ cut here ]------------ [ 33.264236][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.265530][ C1] Modules linked in: [ 33.266313][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc6-syzkaller-00077-g3fb4f979b4fa #0 [ 33.267851][ C1] Hardware name: linux,dummy-virt (DT) [ 33.268589][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.269666][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.270826][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.271491][ C1] sp : ffff80001000be30 [ 33.271983][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.273583][ C1] x27: ffff00007fbd4e40 x26: ffff8000107fd8e0 [ 33.274654][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.275761][ C1] x23: 0000000000000080 x22: 000000077ebd21a0 [ 33.277068][ C1] x21: 0000000000fe4c00 x20: fdff000003ac4628 [ 33.278188][ C1] x19: fdff000003ac5498 x18: 00000000fffffffd [ 33.279304][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.280445][ C1] x15: 0000457a41e1eeeb x14: 00000000000002dd [ 33.281395][ C1] x13: 0000000000000001 x12: 000000000000002d [ 33.283506][ C1] x11: 0000000000000001 x10: 00000000000002dd [ 33.284645][ C1] x9 : 0000000002e71df8 x8 : 000000077de84d90 [ 33.285587][ C1] x7 : 7fffffffffffffff x6 : 000000077de84d90 [ 33.286681][ C1] x5 : 000000077de84d90 x4 : fdff000003ac5498 [ 33.287730][ C1] x3 : 000000077ee69990 x2 : 000000077de84d90 [ 33.289096][ C1] x1 : 000000077ee69990 x0 : 0000000000000002 [ 33.290854][ C1] Call trace: [ 33.291364][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.292071][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.293581][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.294315][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.294992][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.295730][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.296471][ C1] gic_handle_irq+0x50/0xd0 [ 33.297168][ C1] el1_irq+0xb4/0x180 [ 33.297816][ C1] idr_alloc_u32+0x64/0xf0 [ 33.298640][ C1] idr_alloc_cyclic+0x68/0xe4 [ 33.299358][ C1] __kernfs_new_node+0xa8/0x210 [ 33.300229][ C1] kernfs_new_node+0x48/0x70 [ 33.301396][ C1] __kernfs_create_file+0x30/0x160 [ 33.303686][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 33.304492][ C1] sysfs_merge_group+0x84/0x120 [ 33.305241][ C1] dpm_sysfs_add+0x100/0x130 [ 33.305919][ C1] device_add+0x2ec/0x7d0 [ 33.307935][ C1] device_create_groups_vargs+0x108/0x174 [ 33.310433][ C1] device_create+0x5c/0x8c [ 33.311133][ C1] bdi_register_va+0x80/0x214 [ 33.311881][ C1] bdi_register+0x58/0x80 [ 33.318399][ C1] __device_add_disk+0x40c/0x490 [ 33.319229][ C1] device_add_disk+0x14/0x20 [ 33.319954][ C1] loop_add+0x1f4/0x260 [ 33.320686][ C1] loop_init+0x104/0x158 [ 33.321362][ C1] do_one_initcall+0x50/0x1b0 [ 33.322159][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.324130][ C1] kernel_init+0x14/0x118 [ 33.325217][ C1] ret_from_fork+0x10/0x34 [ 33.326137][ C1] ---[ end trace 725733a855eeddcc ]---