failed to run ["ssh" "-p" "38659" "-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 38659 timed out [ 0.000000][ T0] Booting Linux on physical CPU 0x0000000000 [0x000f0510] [ 0.000000][ T0] Linux version 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 (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: 1969632K/2097152K available (23488K kernel code, 2240K rwdata, 15032K rodata, 960K init, 1445K bss, 94752K 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 [ 0.000146][ T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.016105][ T0] Console: colour dummy device 80x25 [ 0.024929][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.026544][ T0] pid_max: default: 32768 minimum: 301 [ 0.035811][ T0] LSM: Security Framework initializing [ 0.039840][ T0] Yama: becoming mindful. [ 0.044457][ T0] TOMOYO Linux initialized [ 0.046944][ T0] Smack: Initializing. [ 0.047203][ T0] Smack: Netfilter enabled. [ 0.047425][ T0] Smack: IPv6 Netfilter enabled. [ 0.051957][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.053184][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.231121][ T1] rcu: Hierarchical SRCU implementation. [ 0.255021][ T1] EFI services will not be available. [ 0.267829][ T1] smp: Bringing up secondary CPUs ... [ 0.302093][ T0] Detected PIPT I-cache on CPU1 [ 0.311700][ T0] CPU1: Booted secondary processor 0x0000000001 [0x000f0510] [ 0.329350][ T1] smp: Brought up 1 node, 2 CPUs [ 0.330018][ T1] SMP: Total of 2 processors activated. [ 0.330476][ T1] CPU features: detected: Privileged Access Never [ 0.330776][ T1] CPU features: detected: LSE atomic instructions [ 0.331052][ T1] CPU features: detected: 32-bit EL0 Support [ 0.331391][ T1] CPU features: detected: Common not Private translations [ 0.331741][ T1] CPU features: detected: Data cache clean to Point of Persistence [ 0.332093][ T1] CPU features: detected: Scalable Vector Extension [ 0.332443][ T1] CPU features: detected: CRC32 instructions [ 0.332723][ T1] CPU features: detected: Speculation barrier (SB) [ 0.333008][ T1] CPU features: detected: Generic authentication (architected algorithm) [ 0.333368][ T1] CPU features: detected: Data cache clean to Point of Deep Persistence [ 0.333696][ T1] CPU features: detected: Random Number Generator [ 0.334061][ T1] CPU features: detected: 32-bit EL1 Support [ 0.334363][ T1] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.957027][ T1] SVE: maximum available vector length 256 bytes per vector [ 0.963598][ T1] SVE: default vector length 64 bytes per vector [ 1.475168][ T1] CPU: All CPU(s) started at EL2 [ 1.659586][ T1] devtmpfs: initialized [ 1.930044][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.932490][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 2.262556][ T1] DMI not present or invalid. [ 2.315595][ T1] NET: Registered protocol family 16 [ 2.500013][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 2.509879][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 2.523054][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 2.526628][ T1] audit: initializing netlink subsys (disabled) [ 2.536233][ T35] audit: type=2000 audit(2.260:1): state=initialized audit_enabled=0 res=1 [ 2.726217][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.726545][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 2.742111][ T1] cpuidle: using governor menu [ 2.755906][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 2.758733][ T1] ASID allocator initialised with 32768 entries [ 2.780509][ T1] Serial: AMBA PL011 UART driver [ 3.351810][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1 [ 3.449454][ T1] printk: console [ttyAMA0] enabled [ 10.869774][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 10.871018][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 10.872126][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.873088][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 11.265475][ T1] cryptd: max_cpu_qlen set to 1000 [ 11.966135][ T1] raid6: neonx8 gen() 116 MB/s [ 12.143865][ T1] raid6: neonx8 xor() 64 MB/s [ 12.322545][ T1] raid6: neonx4 gen() 118 MB/s [ 12.502091][ T1] raid6: neonx4 xor() 63 MB/s [ 12.691702][ T1] raid6: neonx2 gen() 115 MB/s [ 12.869573][ T1] raid6: neonx2 xor() 58 MB/s [ 13.047779][ T1] raid6: neonx1 gen() 102 MB/s [ 13.226066][ T1] raid6: neonx1 xor() 59 MB/s [ 13.404408][ T1] raid6: int64x8 gen() 64 MB/s [ 13.581758][ T1] raid6: int64x8 xor() 39 MB/s [ 13.759116][ T1] raid6: int64x4 gen() 78 MB/s [ 13.936104][ T1] raid6: int64x4 xor() 39 MB/s [ 14.113851][ T1] raid6: int64x2 gen() 73 MB/s [ 14.292471][ T1] raid6: int64x2 xor() 44 MB/s [ 14.468434][ T1] raid6: int64x1 gen() 69 MB/s [ 14.645091][ T1] raid6: int64x1 xor() 43 MB/s [ 14.646418][ T1] raid6: using algorithm neonx4 gen() 118 MB/s [ 14.647389][ T1] raid6: .... xor() 63 MB/s, rmw enabled [ 14.648159][ T1] raid6: using neon recovery algorithm [ 14.673902][ T1] ACPI: Interpreter disabled. [ 14.751805][ T1] iommu: Default domain type: Translated [ 14.765008][ T1] vgaarb: loaded [ 14.848681][ T1] SCSI subsystem initialized [ 14.948886][ T1] usbcore: registered new interface driver usbfs [ 14.959100][ T1] usbcore: registered new interface driver hub [ 14.980600][ T1] usbcore: registered new device driver usb [ 15.074339][ T1] pps_core: LinuxPPS API ver. 1 registered [ 15.077729][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 15.094690][ T1] PTP clock support registered [ 15.113045][ T1] EDAC MC: Ver: 3.0.0 [ 15.253059][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 15.368981][ T1] NetLabel: Initializing [ 15.371014][ T1] NetLabel: domain hash size = 128 [ 15.373836][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 15.386688][ T1] NetLabel: unlabeled traffic allowed by default [ 15.398803][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 15.403608][ T1] NET: Registered protocol family 39 [ 15.436953][ T1] clocksource: Switched to clocksource arch_sys_counter [ 15.492741][ T1] VFS: Disk quotas dquot_6.6.0 [ 15.497711][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 15.526499][ T1] FS-Cache: Loaded [ 15.566359][ T1] CacheFiles: Loaded [ 15.577390][ T1] TOMOYO: 2.6.0 [ 15.578180][ T1] Mandatory Access Control activated. [ 15.587946][ T1] pnp: PnP ACPI: disabled [ 16.697130][ T1] NET: Registered protocol family 2 [ 16.743204][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear) [ 16.748362][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 16.751547][ T1] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear) [ 16.755522][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 16.771224][ T1] MPTCP token hash table entries: 2048 (order: 3, 49152 bytes, linear) [ 16.778658][ T1] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 16.781232][ T1] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 16.798181][ T1] NET: Registered protocol family 1 [ 16.802233][ T1] NET: Registered protocol family 44 [ 16.805849][ T1] PCI: CLS 0 bytes, default 64 [ 16.981205][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 16.991738][ T1] kvm [1]: IPA Size Limit: 48 bits [ 16.999562][ T1] kvm [1]: vgic interrupt IRQ9 [ 17.026507][ T1] kvm [1]: VHE mode initialized successfully [ 17.839382][ T1] Initialise system trusted keyrings [ 17.858781][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 18.711505][ T1] zbud: loaded [ 18.891579][ T1] DLM installed [ 19.256326][ T1] fuse: init (API version 7.33) [ 19.511662][ T1] NET: Registered protocol family 38 [ 19.539782][ T1] xor: measuring software checksum speed [ 19.793830][ T1] 8regs : 41 MB/sec [ 20.013319][ T1] 32regs : 50 MB/sec [ 20.191152][ T1] arm64_neon : 69 MB/sec [ 20.193709][ T1] xor: using function: arm64_neon (69 MB/sec) [ 20.196875][ T1] async_tx: api initialized (async) [ 20.198249][ T1] Key type asymmetric registered [ 20.199329][ T1] Asymmetric key parser 'x509' registered [ 20.200244][ T1] Asymmetric key parser 'pkcs8' registered [ 20.201460][ T1] Key type pkcs7_test registered [ 20.202165][ T1] Asymmetric key parser 'tpm_parser' registered [ 20.207145][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 20.215909][ T1] io scheduler mq-deadline registered [ 20.219012][ T1] io scheduler kyber registered [ 20.232539][ T1] io scheduler bfq registered [ 20.328041][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 20.420484][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 20.422877][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 20.434691][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 20.436303][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 20.438923][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 20.442115][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 20.476387][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 20.479205][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 20.481404][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 20.484930][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 20.486787][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 20.491665][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 20.510055][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 20.513259][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 20.519560][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 20.533176][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 20.534974][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 20.535909][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 20.538766][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 20.540516][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 20.556651][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 20.559272][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 20.560604][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 20.563730][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 20.597917][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 20.601993][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 20.609281][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 20.613363][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 20.617338][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 20.618583][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 20.619762][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 20.620942][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 20.622076][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 20.659834][ T1] usbcore: registered new interface driver udlfb [ 20.708580][ T1] uvesafb: failed to execute /sbin/v86d [ 20.711522][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 20.722022][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 20.723333][ T1] uvesafb: vbe_init() failed with -22 [ 20.727826][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 20.732255][ T1] IPMI message handler: version 39.2 [ 20.760129][ T1] ipmi device interface [ 20.776529][ T1] ipmi_si: IPMI System Interface driver [ 20.798026][ T1] ipmi_si: Unable to find any System Interface(s) [ 20.837387][ T1] EINJ: ACPI disabled. [ 21.143953][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 21.195030][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 21.219002][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 28.005158][ T1] N_HDLC line discipline registered with maxframe=4096 [ 28.007942][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 28.272910][ T1] Cyclades driver 2.6 [ 28.305961][ T1] Initializing Nozomi driver 2.1d [ 28.323335][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 28.335341][ T1] No rocketport ports found; unloading driver [ 28.686764][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 28.788021][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 29.303743][ T1] Console: switching to colour frame buffer device 128x48 [ 29.447505][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 29.455771][ T1] usbcore: registered new interface driver udl [ 29.668863][ T16] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 30.455334][ T1] brd: module loaded [ 30.945619][ C1] ------------[ cut here ]------------ [ 30.946817][ C1] WARNING: CPU: 1 PID: 14 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.949460][ C1] Modules linked in: [ 30.951837][ C1] CPU: 1 PID: 14 Comm: rcu_preempt Not tainted 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 30.953351][ C1] Hardware name: linux,dummy-virt (DT) [ 30.954501][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.955721][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.956730][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.957712][ C1] sp : ffff80001000be30 [ 30.958434][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.960455][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 30.961670][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.962845][ C1] x23: 0000000000000080 x22: 00000006f895da80 [ 30.964244][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 30.965968][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 30.967287][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.968641][ C1] x15: 0000017c7a736cf0 x14: 0000000000000187 [ 30.970076][ C1] x13: 0000000000000001 x12: 0000000000000025 [ 30.971224][ C1] x11: 0000000000000001 x10: 0000000000000187 [ 30.973638][ C1] x9 : 0000000001aaea6e x8 : 00000006f80b1f00 [ 30.974928][ C1] x7 : 7fffffffffffffff x6 : 00000006f80b1f00 [ 30.976064][ C1] x5 : 00000006f80b1f00 x4 : f0ff000003bf9498 [ 30.977158][ C1] x3 : 00000006f9096b00 x2 : 00000006f80b1f00 [ 30.978368][ C1] x1 : 00000006f9096b00 x0 : 0000000000000002 [ 30.979758][ C1] Call trace: [ 30.980474][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.981298][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.982055][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.982762][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.983579][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.984688][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.985590][ C1] gic_handle_irq+0x50/0xd0 [ 30.986272][ C1] el1_irq+0xb4/0x180 [ 30.986950][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 30.987739][ C1] __schedule+0x2dc/0x794 [ 30.988508][ C1] schedule+0x70/0x10c [ 30.989209][ C1] schedule_timeout+0x80/0xf0 [ 30.990030][ C1] rcu_gp_kthread+0x4f4/0xabc [ 30.990843][ C1] kthread+0x174/0x180 [ 30.992216][ C1] ret_from_fork+0x10/0x34 [ 30.993170][ C1] ---[ end trace 90ece7d786ddf07d ]--- [ 30.995099][ C1] ------------[ cut here ]------------ [ 30.995863][ C1] WARNING: CPU: 1 PID: 14 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.997193][ C1] Modules linked in: [ 30.998106][ C1] CPU: 1 PID: 14 Comm: rcu_preempt Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.000138][ C1] Hardware name: linux,dummy-virt (DT) [ 31.000931][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.001971][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.002842][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.003690][ C1] sp : ffff80001000be30 [ 31.004634][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.006043][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.008657][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.010462][ C1] x23: 0000000000000080 x22: 00000006fb9aa1b0 [ 31.011650][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.012836][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.014792][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.015798][ C1] x15: 0000017c7a736cf0 x14: 0000000000000187 [ 31.016835][ C1] x13: 0000000000000001 x12: 0000000000000025 [ 31.019034][ C1] x11: 0000000000000001 x10: 0000000000000187 [ 31.022389][ C1] x9 : ffff800012a0f000 x8 : 00000006fb060300 [ 31.025576][ C1] x7 : 7fffffffffffffff x6 : 00000006fb060300 [ 31.026671][ C1] x5 : 00000006fb060300 x4 : f0ff000003bf9498 [ 31.027715][ C1] x3 : 00000006fc044f00 x2 : 00000006fb060300 [ 31.028857][ C1] x1 : 00000006fc044f00 x0 : 0000000000000003 [ 31.030180][ C1] Call trace: [ 31.030823][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.031695][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.032626][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.033439][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.034521][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.035422][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.036245][ C1] gic_handle_irq+0x50/0xd0 [ 31.036919][ C1] el1_irq+0xb4/0x180 [ 31.037854][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 31.038678][ C1] __schedule+0x2dc/0x794 [ 31.039397][ C1] schedule+0x70/0x10c [ 31.040097][ C1] schedule_timeout+0x80/0xf0 [ 31.040852][ C1] rcu_gp_kthread+0x4f4/0xabc [ 31.041685][ C1] kthread+0x174/0x180 [ 31.042459][ C1] ret_from_fork+0x10/0x34 [ 31.043390][ C1] ---[ end trace 90ece7d786ddf07e ]--- [ 31.045336][ C1] ------------[ cut here ]------------ [ 31.046145][ C1] WARNING: CPU: 1 PID: 14 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.047528][ C1] Modules linked in: [ 31.048378][ C1] CPU: 1 PID: 14 Comm: rcu_preempt Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.050169][ C1] Hardware name: linux,dummy-virt (DT) [ 31.050912][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.051758][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.052750][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.053719][ C1] sp : ffff80001000be30 [ 31.054678][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.056298][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.057429][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.058615][ C1] x23: 0000000000000080 x22: 00000006fe9940b0 [ 31.059806][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.061060][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.062216][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.063404][ C1] x15: 00000ce5fffff31a x14: 0000000000000033 [ 31.065576][ C1] x13: 0000000000000001 x12: 0000000000000060 [ 31.067417][ C1] x11: 0000000000000001 x10: 0000000000000033 [ 31.068628][ C1] x9 : 0000000002b4214c x8 : 00000006fe00e700 [ 31.069899][ C1] x7 : 7fffffffffffffff x6 : 00000006fe00e700 [ 31.071113][ C1] x5 : 00000006fe00e700 x4 : f0ff000003bf9498 [ 31.072335][ C1] x3 : 00000006feff3300 x2 : 00000006fe00e700 [ 31.073525][ C1] x1 : 00000006feff3300 x0 : 0000000000000003 [ 31.075083][ C1] Call trace: [ 31.075676][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.076457][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.077334][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.078189][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.079105][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.080002][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.080862][ C1] gic_handle_irq+0x50/0xd0 [ 31.081713][ C1] el1_irq+0xb4/0x180 [ 31.082475][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 31.083360][ C1] __schedule+0x2dc/0x794 [ 31.089998][ C1] schedule+0x70/0x10c [ 31.090849][ C1] schedule_timeout+0x80/0xf0 [ 31.091671][ C1] rcu_gp_kthread+0x4f4/0xabc [ 31.092471][ C1] kthread+0x174/0x180 [ 31.093206][ C1] ret_from_fork+0x10/0x34 [ 31.095297][ C1] ---[ end trace 90ece7d786ddf07f ]--- [ 31.098071][ C1] hrtimer: interrupt took 153598976 ns [ 31.198387][ C1] ------------[ cut here ]------------ [ 31.199182][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.200529][ C1] Modules linked in: [ 31.201232][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.202430][ C1] Hardware name: linux,dummy-virt (DT) [ 31.203115][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.204004][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.205113][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.207856][ C1] sp : ffff80001000be30 [ 31.208508][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.209683][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.210784][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.211877][ C1] x23: 0000000000000080 x22: 0000000707b833c0 [ 31.212910][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.213988][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.215038][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.216655][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 31.217734][ C1] x13: 0000000000000003 x12: 0000000000000040 [ 31.218792][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 31.219847][ C1] x9 : ffff8000127cbe80 x8 : 0000000706f19300 [ 31.220898][ C1] x7 : 7fffffffffffffff x6 : 0000000706f19300 [ 31.221967][ C1] x5 : 0000000706f19300 x4 : f0ff000003bf9498 [ 31.223029][ C1] x3 : 0000000707efdf00 x2 : 0000000706f19300 [ 31.224654][ C1] x1 : 0000000707efdf00 x0 : 0000000000000009 [ 31.227323][ C1] Call trace: [ 31.227780][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.228415][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.229022][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.229653][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.230495][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.231267][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.231994][ C1] gic_handle_irq+0x50/0xd0 [ 31.232682][ C1] el1_irq+0xb4/0x180 [ 31.233342][ C1] arch_cpu_idle+0x18/0x30 [ 31.234076][ C1] default_idle_call+0x24/0x6c [ 31.234794][ C1] do_idle+0x22c/0x29c [ 31.236331][ C1] cpu_startup_entry+0x28/0x70 [ 31.237085][ C1] secondary_start_kernel+0x164/0x190 [ 31.237805][ C1] 0x0 [ 31.238587][ C1] ---[ end trace 90ece7d786ddf080 ]--- [ 31.239853][ C1] ------------[ cut here ]------------ [ 31.240522][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.241749][ C1] Modules linked in: [ 31.242394][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.243586][ C1] Hardware name: linux,dummy-virt (DT) [ 31.244414][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.249674][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.250597][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.251527][ C1] sp : ffff80001000be30 [ 31.252098][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.253466][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.254541][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.255604][ C1] x23: 0000000000000080 x22: 000000070a318920 [ 31.256671][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.257787][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.258809][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.260125][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 31.261223][ C1] x13: 000015816f309d70 x12: 0000000000000069 [ 31.262542][ C1] x11: 0000000000000025 x10: 0000000000000000 [ 31.263645][ C1] x9 : ffff00007fbd9c40 x8 : 0000000709ec7700 [ 31.267209][ C1] x7 : 7fffffffffffffff x6 : 0000000709ec7700 [ 31.271155][ C1] x5 : 0000000709ec7700 x4 : f0ff000003bf9498 [ 31.272659][ C1] x3 : 000000070aeac300 x2 : 0000000709ec7700 [ 31.273742][ C1] x1 : 000000070aeac300 x0 : 0000000000000003 [ 31.274712][ C1] Call trace: [ 31.275247][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.276102][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.277115][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.278028][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.278824][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.279501][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.280151][ C1] gic_handle_irq+0x50/0xd0 [ 31.280782][ C1] el1_irq+0xb4/0x180 [ 31.281381][ C1] arch_cpu_idle+0x18/0x30 [ 31.282946][ C1] default_idle_call+0x24/0x6c [ 31.283590][ C1] do_idle+0x22c/0x29c [ 31.284349][ C1] cpu_startup_entry+0x28/0x70 [ 31.285727][ C1] secondary_start_kernel+0x164/0x190 [ 31.286423][ C1] 0x0 [ 31.286758][ C1] ---[ end trace 90ece7d786ddf081 ]--- [ 31.287798][ C1] ------------[ cut here ]------------ [ 31.288231][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.289427][ C1] Modules linked in: [ 31.289994][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.291234][ C1] Hardware name: linux,dummy-virt (DT) [ 31.291880][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.292451][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.293034][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.293615][ C1] sp : ffff80001000be30 [ 31.294909][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.295595][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.296559][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.297580][ C1] x23: 0000000000000080 x22: 000000070d0ce990 [ 31.298431][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.299075][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.299887][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.300643][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 31.301431][ C1] x13: 000015816f309d70 x12: 00000000000003f5 [ 31.302243][ C1] x11: 000000000000002d x10: 0000000000000000 [ 31.302997][ C1] x9 : ffff00007fbd9c40 x8 : 000000070ce75b00 [ 31.303788][ C1] x7 : 7fffffffffffffff x6 : 000000070ce75b00 [ 31.305029][ C1] x5 : 000000070ce75b00 x4 : f0ff000003bf9498 [ 31.307217][ C1] x3 : 000000070de5a700 x2 : 000000070ce75b00 [ 31.308016][ C1] x1 : 000000070de5a700 x0 : 0000000000000003 [ 31.309002][ C1] Call trace: [ 31.309538][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.310259][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.310977][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.311515][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.312156][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.312768][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.313526][ C1] gic_handle_irq+0x50/0xd0 [ 31.314141][ C1] el1_irq+0xb4/0x180 [ 31.314604][ C1] arch_cpu_idle+0x18/0x30 [ 31.315336][ C1] default_idle_call+0x24/0x6c [ 31.316063][ C1] do_idle+0x22c/0x29c [ 31.316659][ C1] cpu_startup_entry+0x28/0x70 [ 31.317206][ C1] secondary_start_kernel+0x164/0x190 [ 31.317815][ C1] 0x0 [ 31.318242][ C1] ---[ end trace 90ece7d786ddf082 ]--- [ 31.419610][ C1] ------------[ cut here ]------------ [ 31.420581][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.421988][ C1] Modules linked in: [ 31.422792][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.424289][ C1] Hardware name: linux,dummy-virt (DT) [ 31.425017][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.425845][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.426539][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.427283][ C1] sp : ffff80001000be30 [ 31.427894][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.428970][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.430051][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.431082][ C1] x23: 0000000000000080 x22: 0000000714e4ee80 [ 31.432159][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.433292][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.434366][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.435389][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 31.436392][ C1] x13: 000032bbba7c6ab0 x12: 00000000000002c4 [ 31.437397][ C1] x11: 0000000000000009 x10: 0000000000000000 [ 31.440885][ C1] x9 : ffff00007fbd9c40 x8 : 0000000714d9bb00 [ 31.442361][ C1] x7 : 7fffffffffffffff x6 : 0000000714d9bb00 [ 31.443534][ C1] x5 : 0000000714d9bb00 x4 : f0ff000003bf9498 [ 31.444646][ C1] x3 : 0000000715d80700 x2 : 0000000714d9bb00 [ 31.445579][ C1] x1 : 0000000715d80700 x0 : 0000000000000008 [ 31.446602][ C1] Call trace: [ 31.447192][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.448050][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.448912][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.449725][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.450529][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.451171][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.451838][ C1] gic_handle_irq+0x50/0xd0 [ 31.452460][ C1] el1_irq+0xb4/0x180 [ 31.453085][ C1] arch_cpu_idle+0x18/0x30 [ 31.453763][ C1] default_idle_call+0x24/0x6c [ 31.454631][ C1] do_idle+0x22c/0x29c [ 31.455205][ C1] cpu_startup_entry+0x28/0x70 [ 31.455916][ C1] secondary_start_kernel+0x164/0x190 [ 31.456923][ C1] 0x0 [ 31.457560][ C1] ---[ end trace 90ece7d786ddf083 ]--- [ 31.458753][ C1] ------------[ cut here ]------------ [ 31.459486][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.460892][ C1] Modules linked in: [ 31.461716][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.463141][ C1] Hardware name: linux,dummy-virt (DT) [ 31.463966][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.464911][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.465652][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.466374][ C1] sp : ffff80001000be30 [ 31.467051][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.468253][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.469441][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.470605][ C1] x23: 0000000000000080 x22: 00000007173b6da0 [ 31.471664][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.472822][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.474118][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.475635][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 31.476667][ C1] x13: ffff8000126b7000 x12: 0000000000000026 [ 31.477725][ C1] x11: 0000000000000026 x10: 0000000000000000 [ 31.478860][ C1] x9 : ffff00007fbd9c40 x8 : 0000000716d65300 [ 31.480213][ C1] x7 : 7fffffffffffffff x6 : 0000000716d65300 [ 31.481444][ C1] x5 : 0000000716d65300 x4 : f0ff000003bf9498 [ 31.482658][ C1] x3 : 0000000717d49f00 x2 : 0000000716d65300 [ 31.483731][ C1] x1 : 0000000717d49f00 x0 : 0000000000000002 [ 31.484846][ C1] Call trace: [ 31.485303][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.486437][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.487210][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.488068][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.489027][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.489886][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.490752][ C1] gic_handle_irq+0x50/0xd0 [ 31.491542][ C1] el1_irq+0xb4/0x180 [ 31.492259][ C1] arch_cpu_idle+0x18/0x30 [ 31.493035][ C1] default_idle_call+0x24/0x6c [ 31.493873][ C1] do_idle+0x22c/0x29c [ 31.494857][ C1] cpu_startup_entry+0x28/0x70 [ 31.495567][ C1] secondary_start_kernel+0x164/0x190 [ 31.496298][ C1] 0x0 [ 31.496848][ C1] ---[ end trace 90ece7d786ddf084 ]--- [ 31.497920][ C1] ------------[ cut here ]------------ [ 31.498663][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.499980][ C1] Modules linked in: [ 31.500645][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.502021][ C1] Hardware name: linux,dummy-virt (DT) [ 31.502928][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.504799][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.505623][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.506364][ C1] sp : ffff80001000be30 [ 31.506987][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.508053][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.510001][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.511062][ C1] x23: 0000000000000080 x22: 000000071991c2f0 [ 31.512185][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.513350][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.515055][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.516157][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 31.517301][ C1] x13: ffff8000126b7000 x12: 00000000000001b1 [ 31.518523][ C1] x11: 0000000000000025 x10: 0000000000000000 [ 31.519650][ C1] x9 : ffff00007fbd9c40 x8 : 0000000718d2eb00 [ 31.521026][ C1] x7 : 7fffffffffffffff x6 : 0000000718d2eb00 [ 31.522123][ C1] x5 : 0000000718d2eb00 x4 : f0ff000003bf9498 [ 31.523211][ C1] x3 : 0000000719d13700 x2 : 0000000718d2eb00 [ 31.524429][ C1] x1 : 0000000719d13700 x0 : 0000000000000002 [ 31.526290][ C1] Call trace: [ 31.526844][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.527556][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.528308][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.528997][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.529778][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.530539][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.531236][ C1] gic_handle_irq+0x50/0xd0 [ 31.531950][ C1] el1_irq+0xb4/0x180 [ 31.532606][ C1] arch_cpu_idle+0x18/0x30 [ 31.533301][ C1] default_idle_call+0x24/0x6c [ 31.534163][ C1] do_idle+0x22c/0x29c [ 31.535042][ C1] cpu_startup_entry+0x28/0x70 [ 31.535783][ C1] secondary_start_kernel+0x164/0x190 [ 31.537119][ C1] 0x0 [ 31.537976][ C1] ---[ end trace 90ece7d786ddf085 ]--- [ 31.639347][ C1] ------------[ cut here ]------------ [ 31.640146][ C1] WARNING: CPU: 1 PID: 30 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.641334][ C1] Modules linked in: [ 31.642038][ C1] CPU: 1 PID: 30 Comm: kworker/u4:2 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.643215][ C1] Hardware name: linux,dummy-virt (DT) [ 31.644436][ C1] Workqueue: events_unbound call_usermodehelper_exec_work [ 31.645704][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.646558][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.647292][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.648020][ C1] sp : ffff80001000be30 [ 31.648577][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.649694][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.650774][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.651801][ C1] x23: 0000000000000080 x22: 0000000722013760 [ 31.652834][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.654040][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.655151][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.657895][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 31.660624][ C1] x13: 0000000000000000 x12: 0000000000000040 [ 31.663371][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 31.666088][ C1] x9 : ffff8000127cbe80 x8 : 0000000721c39700 [ 31.668780][ C1] x7 : 7fffffffffffffff x6 : 0000000721c39700 [ 31.671259][ C1] x5 : 0000000721c39700 x4 : f0ff000003bf9498 [ 31.673781][ C1] x3 : 0000000722c1e300 x2 : 0000000721c39700 [ 31.676109][ C1] x1 : 0000000722c1e300 x0 : 0000000000000009 [ 31.678083][ C1] Call trace: [ 31.678651][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.679391][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.680249][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.681024][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.681841][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.682601][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.683403][ C1] gic_handle_irq+0x50/0xd0 [ 31.684451][ C1] el1_irq+0xb4/0x180 [ 31.685186][ C1] arch_stack_walk+0x68/0x16c [ 31.685969][ C1] stack_trace_save+0x50/0x80 [ 31.686706][ C1] kasan_save_stack+0x28/0x60 [ 31.687478][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.688201][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.688964][ C1] copy_process+0x6a4/0x150c [ 31.689732][ C1] kernel_clone+0x5c/0x3c0 [ 31.690472][ C1] kernel_thread+0x68/0x90 [ 31.691188][ C1] call_usermodehelper_exec_work+0x7c/0xb0 [ 31.692039][ C1] process_one_work+0x1d8/0x364 [ 31.692771][ C1] worker_thread+0x70/0x434 [ 31.693542][ C1] kthread+0x174/0x180 [ 31.694512][ C1] ret_from_fork+0x10/0x34 [ 31.695235][ C1] ---[ end trace 90ece7d786ddf086 ]--- [ 31.696576][ C1] ------------[ cut here ]------------ [ 31.697232][ C1] WARNING: CPU: 1 PID: 30 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.698423][ C1] Modules linked in: [ 31.699399][ C1] CPU: 1 PID: 30 Comm: kworker/u4:2 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.700782][ C1] Hardware name: linux,dummy-virt (DT) [ 31.701605][ C1] Workqueue: events_unbound call_usermodehelper_exec_work [ 31.702707][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.703666][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.704979][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.705977][ C1] sp : ffff80001000be30 [ 31.706839][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.707947][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.709135][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.710329][ C1] x23: 0000000000000080 x22: 00000007256aae90 [ 31.711509][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.712602][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.713757][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.715220][ C1] x15: 000000812c67d3b0 x14: 000000000000009f [ 31.716494][ C1] x13: 0000000000000001 x12: 000000000000002c [ 31.719084][ C1] x11: 0000000000000002 x10: 000000000000009f [ 31.720395][ C1] x9 : 0000000003ca435d x8 : 0000000724be7b00 [ 31.721818][ C1] x7 : 7fffffffffffffff x6 : 0000000724be7b00 [ 31.722846][ C1] x5 : 0000000724be7b00 x4 : f0ff000003bf9498 [ 31.723943][ C1] x3 : 0000000725bcc700 x2 : 0000000724be7b00 [ 31.725303][ C1] x1 : 0000000725bcc700 x0 : 0000000000000003 [ 31.729968][ C1] Call trace: [ 31.732623][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.733744][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.735998][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.736776][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.737683][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.738508][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.739279][ C1] gic_handle_irq+0x50/0xd0 [ 31.739988][ C1] el1_irq+0xb4/0x180 [ 31.740655][ C1] arch_stack_walk+0x68/0x16c [ 31.741409][ C1] stack_trace_save+0x50/0x80 [ 31.742364][ C1] kasan_save_stack+0x28/0x60 [ 31.743109][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.743877][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.744731][ C1] copy_process+0x6a4/0x150c [ 31.745652][ C1] kernel_clone+0x5c/0x3c0 [ 31.746402][ C1] kernel_thread+0x68/0x90 [ 31.747104][ C1] call_usermodehelper_exec_work+0x7c/0xb0 [ 31.748000][ C1] process_one_work+0x1d8/0x364 [ 31.748768][ C1] worker_thread+0x70/0x434 [ 31.749569][ C1] kthread+0x174/0x180 [ 31.750324][ C1] ret_from_fork+0x10/0x34 [ 31.751116][ C1] ---[ end trace 90ece7d786ddf087 ]--- [ 31.752223][ C1] ------------[ cut here ]------------ [ 31.753234][ C1] WARNING: CPU: 1 PID: 30 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.755000][ C1] Modules linked in: [ 31.755799][ C1] CPU: 1 PID: 30 Comm: kworker/u4:2 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.757169][ C1] Hardware name: linux,dummy-virt (DT) [ 31.757978][ C1] Workqueue: events_unbound call_usermodehelper_exec_work [ 31.759034][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.760049][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.760845][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.761639][ C1] sp : ffff80001000be30 [ 31.762283][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.763353][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.764956][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.766095][ C1] x23: 0000000000000080 x22: 0000000728bb3e70 [ 31.767217][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.768278][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 31.769351][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.770478][ C1] x15: 000000812c67d3b0 x14: 000000000000009f [ 31.771570][ C1] x13: 0000000000000001 x12: 000000000000002c [ 31.772602][ C1] x11: 0000000000000002 x10: 000000000000009f [ 31.773714][ C1] x9 : ffff800012a0f000 x8 : 0000000728b7ab00 [ 31.775302][ C1] x7 : 7fffffffffffffff x6 : 0000000728b7ab00 [ 31.776387][ C1] x5 : 0000000728b7ab00 x4 : f0ff000003bf9498 [ 31.777439][ C1] x3 : 0000000729b5f700 x2 : 0000000728b7ab00 [ 31.778530][ C1] x1 : 0000000729b5f700 x0 : 0000000000000004 [ 31.779612][ C1] Call trace: [ 31.780214][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.781040][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.781828][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.782598][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.783370][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.784670][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.785441][ C1] gic_handle_irq+0x50/0xd0 [ 31.786223][ C1] el1_irq+0xb4/0x180 [ 31.786931][ C1] arch_stack_walk+0x68/0x16c [ 31.787694][ C1] stack_trace_save+0x50/0x80 [ 31.788504][ C1] kasan_save_stack+0x28/0x60 [ 31.789282][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.790115][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.790938][ C1] copy_process+0x6a4/0x150c [ 31.791631][ C1] kernel_clone+0x5c/0x3c0 [ 31.792385][ C1] kernel_thread+0x68/0x90 [ 31.793108][ C1] call_usermodehelper_exec_work+0x7c/0xb0 [ 31.794092][ C1] process_one_work+0x1d8/0x364 [ 31.795027][ C1] worker_thread+0x70/0x434 [ 31.795752][ C1] kthread+0x174/0x180 [ 31.796457][ C1] ret_from_fork+0x10/0x34 [ 31.797850][ C1] ---[ end trace 90ece7d786ddf088 ]--- [ 31.899476][ C1] ------------[ cut here ]------------ [ 31.901817][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.907225][ C1] Modules linked in: [ 31.908937][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.910249][ C1] Hardware name: linux,dummy-virt (DT) [ 31.911030][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.911977][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.912793][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.913607][ C1] sp : ffff80001000be30 [ 31.915419][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.916534][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.917682][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.918784][ C1] x23: 0000000000000080 x22: 000000073181f490 [ 31.919840][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.920921][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 31.922002][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.923064][ C1] x15: 0000000000000020 x14: 0000000000000000 [ 31.924759][ C1] x13: 00000000000001c6 x12: 0000000000000040 [ 31.925553][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 31.926237][ C1] x9 : ffff8000127cbe80 x8 : 0000000730aa0b00 [ 31.926875][ C1] x7 : 7fffffffffffffff x6 : 0000000730aa0b00 [ 31.927486][ C1] x5 : 0000000730aa0b00 x4 : f0ff000003bf9498 [ 31.928145][ C1] x3 : 0000000731a85700 x2 : 0000000730aa0b00 [ 31.928859][ C1] x1 : 0000000731a85700 x0 : 0000000000000008 [ 31.929574][ C1] Call trace: [ 31.929908][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.930510][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.931142][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.931789][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.932454][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.933062][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.933690][ C1] gic_handle_irq+0x50/0xd0 [ 31.934512][ C1] el1_irq+0xb4/0x180 [ 31.935065][ C1] stack_trace_consume_entry+0x1c/0x70 [ 31.935723][ C1] stack_trace_save+0x50/0x80 [ 31.936333][ C1] kasan_save_stack+0x28/0x60 [ 31.936925][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.937553][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.938146][ C1] alloc_inode+0x84/0xdc [ 31.938758][ C1] new_inode+0x1c/0xb4 [ 31.939330][ C1] debugfs_create_dir+0x64/0x1e0 [ 31.939935][ C1] blk_mq_debugfs_register_rqos+0x7c/0xcc [ 31.940599][ C1] wbt_init+0x124/0x1d0 [ 31.941165][ C1] wbt_enable_default+0x48/0x80 [ 31.941812][ C1] blk_register_queue+0x120/0x220 [ 31.942412][ C1] __device_add_disk+0x328/0x490 [ 31.942997][ C1] device_add_disk+0x14/0x20 [ 31.943586][ C1] loop_add+0x1f4/0x260 [ 31.944634][ C1] loop_init+0x104/0x158 [ 31.945101][ C1] do_one_initcall+0x50/0x1b0 [ 31.945590][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.946053][ C1] kernel_init+0x14/0x118 [ 31.946447][ C1] ret_from_fork+0x10/0x34 [ 31.946863][ C1] ---[ end trace 90ece7d786ddf089 ]--- [ 31.947727][ C1] ------------[ cut here ]------------ [ 31.948122][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.948807][ C1] Modules linked in: [ 31.949200][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.950049][ C1] Hardware name: linux,dummy-virt (DT) [ 31.950520][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.951100][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.951588][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.952051][ C1] sp : ffff80001000be30 [ 31.952425][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.953064][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.953744][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.954978][ C1] x23: 0000000000000080 x22: 000000073463c9a0 [ 31.956505][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.958291][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 31.959201][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.959975][ C1] x15: 0000000000000020 x14: 000000000000ba7e [ 31.960763][ C1] x13: 000010d1dea9f36b x12: 00434b7f0118125a [ 31.961562][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 31.962353][ C1] x9 : 0000000000000400 x8 : 0000000733a4ef00 [ 31.963112][ C1] x7 : 7fffffffffffffff x6 : 0000000733a4ef00 [ 31.963907][ C1] x5 : 0000000733a4ef00 x4 : f0ff000003bf9498 [ 31.965131][ C1] x3 : 0000000734a33b00 x2 : 0000000733a4ef00 [ 31.966052][ C1] x1 : 0000000734a33b00 x0 : 0000000000000003 [ 31.966881][ C1] Call trace: [ 31.967350][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.967968][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.968464][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.968928][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.969573][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.970167][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.970777][ C1] gic_handle_irq+0x50/0xd0 [ 31.971358][ C1] el1_irq+0xb4/0x180 [ 31.971901][ C1] stack_trace_consume_entry+0x1c/0x70 [ 31.972526][ C1] stack_trace_save+0x50/0x80 [ 31.973120][ C1] kasan_save_stack+0x28/0x60 [ 31.973782][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.974666][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.975109][ C1] alloc_inode+0x84/0xdc [ 31.975485][ C1] new_inode+0x1c/0xb4 [ 31.975849][ C1] debugfs_create_dir+0x64/0x1e0 [ 31.976294][ C1] blk_mq_debugfs_register_rqos+0x7c/0xcc [ 31.976800][ C1] wbt_init+0x124/0x1d0 [ 31.977236][ C1] wbt_enable_default+0x48/0x80 [ 31.977774][ C1] blk_register_queue+0x120/0x220 [ 31.978409][ C1] __device_add_disk+0x328/0x490 [ 31.978992][ C1] device_add_disk+0x14/0x20 [ 31.979575][ C1] loop_add+0x1f4/0x260 [ 31.980127][ C1] loop_init+0x104/0x158 [ 31.980686][ C1] do_one_initcall+0x50/0x1b0 [ 31.981257][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.981905][ C1] kernel_init+0x14/0x118 [ 31.982462][ C1] ret_from_fork+0x10/0x34 [ 31.983029][ C1] ---[ end trace 90ece7d786ddf08a ]--- [ 31.983862][ C1] ------------[ cut here ]------------ [ 31.984650][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.985718][ C1] Modules linked in: [ 31.986300][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 31.987178][ C1] Hardware name: linux,dummy-virt (DT) [ 31.987794][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.988522][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.989239][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.989900][ C1] sp : ffff80001000be30 [ 31.990380][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.991137][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 31.991802][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.992797][ C1] x23: 0000000000000080 x22: 00000007368b3ca0 [ 31.993776][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 31.994822][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 31.995732][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.996508][ C1] x15: 0000000000000020 x14: 000000000000ba7e [ 31.997374][ C1] x13: 000010d1dea9f36b x12: 00434b7f0118125a [ 31.998186][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 31.998892][ C1] x9 : ffff800012a0f000 x8 : 0000000735a18700 [ 31.999629][ C1] x7 : 7fffffffffffffff x6 : 0000000735a18700 [ 32.000546][ C1] x5 : 0000000735a18700 x4 : f0ff000003bf9498 [ 32.001524][ C1] x3 : 00000007369fd300 x2 : 0000000735a18700 [ 32.002271][ C1] x1 : 00000007369fd300 x0 : 0000000000000002 [ 32.003210][ C1] Call trace: [ 32.003638][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.004902][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.005552][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.006181][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.006868][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.007551][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.008252][ C1] gic_handle_irq+0x50/0xd0 [ 32.008749][ C1] el1_irq+0xb4/0x180 [ 32.009353][ C1] stack_trace_consume_entry+0x1c/0x70 [ 32.010060][ C1] stack_trace_save+0x50/0x80 [ 32.010746][ C1] kasan_save_stack+0x28/0x60 [ 32.011503][ C1] __kasan_slab_alloc+0xd8/0x120 [ 32.012067][ C1] kmem_cache_alloc+0x1bc/0x33c [ 32.012706][ C1] alloc_inode+0x84/0xdc [ 32.013304][ C1] new_inode+0x1c/0xb4 [ 32.013887][ C1] debugfs_create_dir+0x64/0x1e0 [ 32.014477][ C1] blk_mq_debugfs_register_rqos+0x7c/0xcc [ 32.015082][ C1] wbt_init+0x124/0x1d0 [ 32.015575][ C1] wbt_enable_default+0x48/0x80 [ 32.016053][ C1] blk_register_queue+0x120/0x220 [ 32.016486][ C1] __device_add_disk+0x328/0x490 [ 32.017032][ C1] device_add_disk+0x14/0x20 [ 32.017541][ C1] loop_add+0x1f4/0x260 [ 32.018117][ C1] loop_init+0x104/0x158 [ 32.018734][ C1] do_one_initcall+0x50/0x1b0 [ 32.019335][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.019872][ C1] kernel_init+0x14/0x118 [ 32.020459][ C1] ret_from_fork+0x10/0x34 [ 32.020933][ C1] ---[ end trace 90ece7d786ddf08b ]--- [ 32.122220][ C1] ------------[ cut here ]------------ [ 32.122885][ C1] WARNING: CPU: 1 PID: 22 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.123792][ C1] Modules linked in: [ 32.124369][ C1] CPU: 1 PID: 22 Comm: kdevtmpfs Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.125379][ C1] Hardware name: linux,dummy-virt (DT) [ 32.126017][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.126604][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.127209][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.127835][ C1] sp : ffff80001000be30 [ 32.128357][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.129315][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.130234][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.131089][ C1] x23: 0000000000000080 x22: 000000073ec985a0 [ 32.132056][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.132911][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffd [ 32.133798][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.135004][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.135864][ C1] x13: 0000000000078ca6 x12: 0000000000000040 [ 32.136552][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 32.137270][ C1] x9 : ffff8000127cbe80 x8 : 000000073e923300 [ 32.138057][ C1] x7 : 7fffffffffffffff x6 : 000000073e923300 [ 32.138861][ C1] x5 : 000000073e923300 x4 : f0ff000003bf9498 [ 32.139813][ C1] x3 : 000000073f907f00 x2 : 000000073e923300 [ 32.140829][ C1] x1 : 000000073f907f00 x0 : 0000000000000009 [ 32.141790][ C1] Call trace: [ 32.142274][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.142874][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.143552][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.144286][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.145150][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.145698][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.146182][ C1] gic_handle_irq+0x50/0xd0 [ 32.146844][ C1] el1_irq+0xb4/0x180 [ 32.147472][ C1] kmem_cache_alloc+0xc0/0x33c [ 32.148192][ C1] security_inode_alloc+0x2c/0x94 [ 32.148860][ C1] inode_init_always+0xc4/0x1d4 [ 32.149318][ C1] alloc_inode+0x3c/0xdc [ 32.149756][ C1] new_inode+0x1c/0xb4 [ 32.150462][ C1] shmem_get_inode+0x140/0x3d0 [ 32.151219][ C1] shmem_mknod+0x34/0x100 [ 32.151893][ C1] vfs_mknod+0x1bc/0x270 [ 32.152503][ C1] handle_create+0x178/0x21c [ 32.153182][ C1] devtmpfsd+0xcc/0x11c [ 32.153796][ C1] kthread+0x174/0x180 [ 32.154566][ C1] ret_from_fork+0x10/0x34 [ 32.155131][ C1] ---[ end trace 90ece7d786ddf08c ]--- [ 32.156318][ C1] ------------[ cut here ]------------ [ 32.156921][ C1] WARNING: CPU: 1 PID: 22 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.157992][ C1] Modules linked in: [ 32.158536][ C1] CPU: 1 PID: 22 Comm: kdevtmpfs Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.159599][ C1] Hardware name: linux,dummy-virt (DT) [ 32.160187][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.160911][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.161567][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.162226][ C1] sp : ffff80001000be30 [ 32.162733][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.163550][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.164523][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.165323][ C1] x23: 0000000000000080 x22: 0000000740d271c0 [ 32.166184][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.166993][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffd [ 32.167821][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.168712][ C1] x15: 0000033d3bdb086e x14: 0000000000000240 [ 32.169576][ C1] x13: 0000000000000001 x12: 0000000000000007 [ 32.170417][ C1] x11: 0000000000000001 x10: 0000000000000240 [ 32.171222][ C1] x9 : 0000000002392196 x8 : 00000007408ecb00 [ 32.172051][ C1] x7 : 7fffffffffffffff x6 : 00000007408ecb00 [ 32.172863][ C1] x5 : 00000007408ecb00 x4 : f0ff000003bf9498 [ 32.173803][ C1] x3 : 00000007418d1700 x2 : 00000007408ecb00 [ 32.174720][ C1] x1 : 00000007418d1700 x0 : 0000000000000002 [ 32.176394][ C1] Call trace: [ 32.176868][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.177575][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.178184][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.178795][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.179411][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.180026][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.180616][ C1] gic_handle_irq+0x50/0xd0 [ 32.181187][ C1] el1_irq+0xb4/0x180 [ 32.181759][ C1] kmem_cache_alloc+0xc0/0x33c [ 32.182337][ C1] security_inode_alloc+0x2c/0x94 [ 32.182935][ C1] inode_init_always+0xc4/0x1d4 [ 32.183515][ C1] alloc_inode+0x3c/0xdc [ 32.184193][ C1] new_inode+0x1c/0xb4 [ 32.184963][ C1] shmem_get_inode+0x140/0x3d0 [ 32.185616][ C1] shmem_mknod+0x34/0x100 [ 32.186180][ C1] vfs_mknod+0x1bc/0x270 [ 32.186729][ C1] handle_create+0x178/0x21c [ 32.187292][ C1] devtmpfsd+0xcc/0x11c [ 32.187848][ C1] kthread+0x174/0x180 [ 32.188368][ C1] ret_from_fork+0x10/0x34 [ 32.188928][ C1] ---[ end trace 90ece7d786ddf08d ]--- [ 32.189902][ C1] ------------[ cut here ]------------ [ 32.190488][ C1] WARNING: CPU: 1 PID: 22 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.191539][ C1] Modules linked in: [ 32.192082][ C1] CPU: 1 PID: 22 Comm: kdevtmpfs Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.193157][ C1] Hardware name: linux,dummy-virt (DT) [ 32.193773][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.194967][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.195663][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.196293][ C1] sp : ffff80001000be30 [ 32.196816][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.197679][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.198516][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.199426][ C1] x23: 0000000000000080 x22: 0000000742d0a3a0 [ 32.200226][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.201039][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffd [ 32.201892][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.202720][ C1] x15: 00000efefffff101 x14: 00000000000002ae [ 32.203566][ C1] x13: 0000000000000001 x12: 0000000000000020 [ 32.204692][ C1] x11: 0000000000000001 x10: 00000000000002ae [ 32.205540][ C1] x9 : 00000000028fc4ca x8 : 00000007428b6300 [ 32.206312][ C1] x7 : 7fffffffffffffff x6 : 00000007428b6300 [ 32.207101][ C1] x5 : 00000007428b6300 x4 : f0ff000003bf9498 [ 32.207896][ C1] x3 : 000000074389af00 x2 : 00000007428b6300 [ 32.208686][ C1] x1 : 000000074389af00 x0 : 0000000000000002 [ 32.209461][ C1] Call trace: [ 32.209936][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.210586][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.211256][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.211864][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.212474][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.213101][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.213722][ C1] gic_handle_irq+0x50/0xd0 [ 32.214573][ C1] el1_irq+0xb4/0x180 [ 32.215106][ C1] kmem_cache_alloc+0xc0/0x33c [ 32.215750][ C1] security_inode_alloc+0x2c/0x94 [ 32.216377][ C1] inode_init_always+0xc4/0x1d4 [ 32.216964][ C1] alloc_inode+0x3c/0xdc [ 32.217568][ C1] new_inode+0x1c/0xb4 [ 32.218128][ C1] shmem_get_inode+0x140/0x3d0 [ 32.218776][ C1] shmem_mknod+0x34/0x100 [ 32.219344][ C1] vfs_mknod+0x1bc/0x270 [ 32.219926][ C1] handle_create+0x178/0x21c [ 32.220520][ C1] devtmpfsd+0xcc/0x11c [ 32.221115][ C1] kthread+0x174/0x180 [ 32.221711][ C1] ret_from_fork+0x10/0x34 [ 32.222276][ C1] ---[ end trace 90ece7d786ddf08e ]--- [ 32.325950][ C1] ------------[ cut here ]------------ [ 32.327332][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.330083][ C1] Modules linked in: [ 32.330828][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.331981][ C1] Hardware name: linux,dummy-virt (DT) [ 32.332707][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.333574][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.335284][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.336114][ C1] sp : ffff80001000be30 [ 32.337626][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.338657][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.339582][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.340681][ C1] x23: 0000000000000080 x22: 000000074ae870a0 [ 32.341714][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.342776][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 32.343861][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.344887][ C1] x15: 00003eb7fd8d83b8 x14: 0000000000000000 [ 32.345938][ C1] x13: ffff8000126b7000 x12: 0000000000000269 [ 32.346943][ C1] x11: 0000000000000010 x10: 0000000000000000 [ 32.347993][ C1] x9 : ffff00007fbd9c40 x8 : 000000074a7dc300 [ 32.348948][ C1] x7 : 7fffffffffffffff x6 : 000000074a7dc300 [ 32.350709][ C1] x5 : 000000074a7dc300 x4 : f0ff000003bf9498 [ 32.351941][ C1] x3 : 000000074b7c0f00 x2 : 000000074a7dc300 [ 32.353004][ C1] x1 : 000000074b7c0f00 x0 : 0000000000000008 [ 32.354316][ C1] Call trace: [ 32.354955][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.355791][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.356769][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.357802][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.358529][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.359308][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.360055][ C1] gic_handle_irq+0x50/0xd0 [ 32.360725][ C1] el1_irq+0xb4/0x180 [ 32.361384][ C1] arch_cpu_idle+0x18/0x30 [ 32.362149][ C1] default_idle_call+0x24/0x6c [ 32.362935][ C1] do_idle+0x22c/0x29c [ 32.363654][ C1] cpu_startup_entry+0x24/0x70 [ 32.364893][ C1] secondary_start_kernel+0x164/0x190 [ 32.365832][ C1] 0x0 [ 32.366422][ C1] ---[ end trace 90ece7d786ddf08f ]--- [ 32.367936][ C1] ------------[ cut here ]------------ [ 32.368647][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.370031][ C1] Modules linked in: [ 32.370781][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.372164][ C1] Hardware name: linux,dummy-virt (DT) [ 32.372915][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.373931][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.376362][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.377364][ C1] sp : ffff80001000be30 [ 32.378139][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.379260][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.381478][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.382645][ C1] x23: 0000000000000080 x22: 000000074d6ad7e0 [ 32.384770][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.385944][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 32.387077][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.388172][ C1] x15: 00003eb7fd8d83b8 x14: 0000000000000000 [ 32.389187][ C1] x13: ffff8000126b7000 x12: 00000000000002c8 [ 32.390222][ C1] x11: 0000000000000028 x10: 0000000000000000 [ 32.391259][ C1] x9 : ffff00007fbd9c40 x8 : 000000074c7a5b00 [ 32.392308][ C1] x7 : 7fffffffffffffff x6 : 000000074c7a5b00 [ 32.393424][ C1] x5 : 000000074c7a5b00 x4 : f0ff000003bf9498 [ 32.395473][ C1] x3 : 000000074d78a700 x2 : 000000074c7a5b00 [ 32.396844][ C1] x1 : 000000074d78a700 x0 : 0000000000000002 [ 32.398116][ C1] Call trace: [ 32.398683][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.399559][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.400484][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.401287][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.402237][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.403109][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.404204][ C1] gic_handle_irq+0x50/0xd0 [ 32.405039][ C1] el1_irq+0xb4/0x180 [ 32.405805][ C1] arch_cpu_idle+0x18/0x30 [ 32.406618][ C1] default_idle_call+0x24/0x6c [ 32.407427][ C1] do_idle+0x22c/0x29c [ 32.408165][ C1] cpu_startup_entry+0x24/0x70 [ 32.408928][ C1] secondary_start_kernel+0x164/0x190 [ 32.409772][ C1] 0x0 [ 32.410407][ C1] ---[ end trace 90ece7d786ddf090 ]--- [ 32.411560][ C1] ------------[ cut here ]------------ [ 32.412289][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.413649][ C1] Modules linked in: [ 32.414621][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.416058][ C1] Hardware name: linux,dummy-virt (DT) [ 32.416886][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.417786][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.418580][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.420671][ C1] sp : ffff80001000be30 [ 32.421858][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.424423][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.426877][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.428603][ C1] x23: 0000000000000080 x22: 00000007500815d0 [ 32.429741][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.430655][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 32.431688][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.432834][ C1] x15: 00003eb7fd8d83b8 x14: 0000000000000000 [ 32.434101][ C1] x13: ffff8000126b7000 x12: 00000000000002c8 [ 32.435118][ C1] x11: 0000000000000028 x10: 0000000000000000 [ 32.436041][ C1] x9 : ffff800012a0f000 x8 : 000000074f753f00 [ 32.437029][ C1] x7 : 7fffffffffffffff x6 : 000000074f753f00 [ 32.438036][ C1] x5 : 000000074f753f00 x4 : f0ff000003bf9498 [ 32.439090][ C1] x3 : 0000000750738b00 x2 : 000000074f753f00 [ 32.440015][ C1] x1 : 0000000750738b00 x0 : 0000000000000003 [ 32.440917][ C1] Call trace: [ 32.441425][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.442174][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.442924][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.443644][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.446663][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.448793][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.450718][ C1] gic_handle_irq+0x50/0xd0 [ 32.452507][ C1] el1_irq+0xb4/0x180 [ 32.453154][ C1] arch_cpu_idle+0x18/0x30 [ 32.453899][ C1] default_idle_call+0x24/0x6c [ 32.456410][ C1] do_idle+0x22c/0x29c [ 32.457436][ C1] cpu_startup_entry+0x24/0x70 [ 32.458593][ C1] secondary_start_kernel+0x164/0x190 [ 32.462002][ C1] 0x0 [ 32.463060][ C1] ---[ end trace 90ece7d786ddf091 ]--- [ 32.564695][ C1] ------------[ cut here ]------------ [ 32.565748][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.566933][ C1] Modules linked in: [ 32.567616][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.569164][ C1] Hardware name: linux,dummy-virt (DT) [ 32.570040][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.570865][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.571648][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.572440][ C1] sp : ffff80001000be30 [ 32.573065][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.574611][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.575832][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.576875][ C1] x23: 0000000000000080 x22: 0000000759281ec0 [ 32.578217][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.582131][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 32.584504][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.586865][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 32.588899][ C1] x13: 0000000000000001 x12: 0000000000000040 [ 32.591538][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 32.593877][ C1] x9 : ffff8000127cbe80 x8 : 000000075865eb00 [ 32.596322][ C1] x7 : 7fffffffffffffff x6 : 000000075865eb00 [ 32.598061][ C1] x5 : 000000075865eb00 x4 : f0ff000003bf9498 [ 32.599305][ C1] x3 : 0000000759643700 x2 : 000000075865eb00 [ 32.600646][ C1] x1 : 0000000759643700 x0 : 0000000000000009 [ 32.602096][ C1] Call trace: [ 32.602720][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.603670][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.604768][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.605910][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.606863][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.608437][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.609328][ C1] gic_handle_irq+0x50/0xd0 [ 32.610171][ C1] el1_irq+0xb4/0x180 [ 32.610947][ C1] arch_cpu_idle+0x18/0x30 [ 32.611936][ C1] default_idle_call+0x24/0x6c [ 32.612634][ C1] do_idle+0x22c/0x29c [ 32.613368][ C1] cpu_startup_entry+0x28/0x70 [ 32.614364][ C1] secondary_start_kernel+0x164/0x190 [ 32.615271][ C1] 0x0 [ 32.615896][ C1] ---[ end trace 90ece7d786ddf092 ]--- [ 32.617279][ C1] ------------[ cut here ]------------ [ 32.618809][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.620256][ C1] Modules linked in: [ 32.620895][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.622236][ C1] Hardware name: linux,dummy-virt (DT) [ 32.623086][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.624039][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.625008][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.626096][ C1] sp : ffff80001000be30 [ 32.626742][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.627948][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.629488][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.630766][ C1] x23: 0000000000000080 x22: 000000075c4b5c50 [ 32.631807][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.632891][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 32.634708][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.635914][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 32.637434][ C1] x13: 00000e5aa6654b40 x12: 00000000000002d1 [ 32.638558][ C1] x11: 000000000000000a x10: 0000000000000000 [ 32.639523][ C1] x9 : ffff00007fbd9c40 x8 : 000000075b60cf00 [ 32.640504][ C1] x7 : 7fffffffffffffff x6 : 000000075b60cf00 [ 32.641488][ C1] x5 : 000000075b60cf00 x4 : f0ff000003bf9498 [ 32.642786][ C1] x3 : 000000075c5f1b00 x2 : 000000075b60cf00 [ 32.643823][ C1] x1 : 000000075c5f1b00 x0 : 0000000000000003 [ 32.645545][ C1] Call trace: [ 32.646125][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.646960][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.647703][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.648475][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.649346][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.650143][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.650891][ C1] gic_handle_irq+0x50/0xd0 [ 32.651625][ C1] el1_irq+0xb4/0x180 [ 32.652316][ C1] arch_cpu_idle+0x18/0x30 [ 32.653225][ C1] default_idle_call+0x24/0x6c [ 32.654082][ C1] do_idle+0x22c/0x29c [ 32.654936][ C1] cpu_startup_entry+0x28/0x70 [ 32.655715][ C1] secondary_start_kernel+0x164/0x190 [ 32.656600][ C1] 0x0 [ 32.657231][ C1] ---[ end trace 90ece7d786ddf093 ]--- [ 32.658343][ C1] ------------[ cut here ]------------ [ 32.659226][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.660679][ C1] Modules linked in: [ 32.661384][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.662757][ C1] Hardware name: linux,dummy-virt (DT) [ 32.663471][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.665453][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.666797][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.668052][ C1] sp : ffff80001000be30 [ 32.668886][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.670099][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.671145][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.672357][ C1] x23: 0000000000000080 x22: 000000075ebe0330 [ 32.673763][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.675259][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 32.676445][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.678616][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 32.681063][ C1] x13: 00000e5aa6654b40 x12: 00000000000002d1 [ 32.683527][ C1] x11: 000000000000000a x10: 0000000000000000 [ 32.686434][ C1] x9 : ffff800012a0f000 x8 : 000000075e5bb300 [ 32.687554][ C1] x7 : 7fffffffffffffff x6 : 000000075e5bb300 [ 32.688621][ C1] x5 : 000000075e5bb300 x4 : f0ff000003bf9498 [ 32.689746][ C1] x3 : 000000075f59ff00 x2 : 000000075e5bb300 [ 32.690777][ C1] x1 : 000000075f59ff00 x0 : 0000000000000003 [ 32.691624][ C1] Call trace: [ 32.692071][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.692691][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.693318][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.694368][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.695078][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.695725][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.696338][ C1] gic_handle_irq+0x50/0xd0 [ 32.696974][ C1] el1_irq+0xb4/0x180 [ 32.697575][ C1] arch_cpu_idle+0x18/0x30 [ 32.698131][ C1] default_idle_call+0x24/0x6c [ 32.698749][ C1] do_idle+0x22c/0x29c [ 32.699310][ C1] cpu_startup_entry+0x28/0x70 [ 32.699923][ C1] secondary_start_kernel+0x164/0x190 [ 32.700585][ C1] 0x0 [ 32.701049][ C1] ---[ end trace 90ece7d786ddf094 ]--- [ 32.802362][ C1] ------------[ cut here ]------------ [ 32.803507][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.805872][ C1] Modules linked in: [ 32.806609][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.808141][ C1] Hardware name: linux,dummy-virt (DT) [ 32.809825][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.810668][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.811580][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.812607][ C1] sp : ffff80001000be30 [ 32.813421][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.815030][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.815947][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.816788][ C1] x23: 0000000000000080 x22: 0000000767533620 [ 32.817659][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.818635][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffb [ 32.819587][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.820435][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.821192][ C1] x13: 0000000000078b43 x12: 0000000000000040 [ 32.822029][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 32.823055][ C1] x9 : ffff8000127cbe80 x8 : 00000007674c5f00 [ 32.823876][ C1] x7 : 7fffffffffffffff x6 : 00000007674c5f00 [ 32.824818][ C1] x5 : 00000007674c5f00 x4 : f0ff000003bf9498 [ 32.825658][ C1] x3 : 00000007684aab00 x2 : 00000007674c5f00 [ 32.826373][ C1] x1 : 00000007684aab00 x0 : 0000000000000009 [ 32.827188][ C1] Call trace: [ 32.827575][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.828177][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.828676][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.829174][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.829842][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.830365][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.830826][ C1] gic_handle_irq+0x50/0xd0 [ 32.831340][ C1] el1_irq+0xb4/0x180 [ 32.832093][ C1] __kernfs_new_node+0x198/0x210 [ 32.832673][ C1] kernfs_create_dir_ns+0x5c/0xd0 [ 32.833238][ C1] sysfs_create_dir_ns+0x6c/0x110 [ 32.833852][ C1] kobject_add_internal+0xb4/0x2bc [ 32.834585][ C1] kobject_add+0x94/0x104 [ 32.835175][ C1] __blk_mq_register_dev+0x50/0x174 [ 32.835727][ C1] blk_register_queue+0xdc/0x220 [ 32.836248][ C1] __device_add_disk+0x328/0x490 [ 32.836747][ C1] device_add_disk+0x14/0x20 [ 32.837300][ C1] loop_add+0x1f4/0x260 [ 32.837969][ C1] loop_init+0x104/0x158 [ 32.838600][ C1] do_one_initcall+0x50/0x1b0 [ 32.839354][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.840096][ C1] kernel_init+0x14/0x118 [ 32.840596][ C1] ret_from_fork+0x10/0x34 [ 32.841244][ C1] ---[ end trace 90ece7d786ddf095 ]--- [ 32.842443][ C1] ------------[ cut here ]------------ [ 32.843088][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.846022][ C1] Modules linked in: [ 32.846942][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.848196][ C1] Hardware name: linux,dummy-virt (DT) [ 32.848994][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.849809][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.850426][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.850944][ C1] sp : ffff80001000be30 [ 32.851404][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.852205][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.853043][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.854434][ C1] x23: 0000000000000080 x22: 0000000769b75850 [ 32.855436][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.856367][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffb [ 32.857217][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.858080][ C1] x15: 00000af97afacad6 x14: 000000000000031d [ 32.859083][ C1] x13: 0000000000000001 x12: 0000000000000001 [ 32.860042][ C1] x11: 0000000000000001 x10: 000000000000031d [ 32.861271][ C1] x9 : 0000000000400e48 x8 : 000000076948f700 [ 32.862400][ C1] x7 : 7fffffffffffffff x6 : 000000076948f700 [ 32.863353][ C1] x5 : 000000076948f700 x4 : f0ff000003bf9498 [ 32.865017][ C1] x3 : 000000076a474300 x2 : 000000076948f700 [ 32.866145][ C1] x1 : 000000076a474300 x0 : 0000000000000002 [ 32.867188][ C1] Call trace: [ 32.867749][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.868532][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.869683][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.870409][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.871166][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.872532][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.873455][ C1] gic_handle_irq+0x50/0xd0 [ 32.874824][ C1] el1_irq+0xb4/0x180 [ 32.875502][ C1] __kernfs_new_node+0x198/0x210 [ 32.876289][ C1] kernfs_create_dir_ns+0x5c/0xd0 [ 32.877063][ C1] sysfs_create_dir_ns+0x6c/0x110 [ 32.877907][ C1] kobject_add_internal+0xb4/0x2bc [ 32.878786][ C1] kobject_add+0x94/0x104 [ 32.879532][ C1] __blk_mq_register_dev+0x50/0x174 [ 32.880462][ C1] blk_register_queue+0xdc/0x220 [ 32.881224][ C1] __device_add_disk+0x328/0x490 [ 32.881993][ C1] device_add_disk+0x14/0x20 [ 32.882720][ C1] loop_add+0x1f4/0x260 [ 32.883417][ C1] loop_init+0x104/0x158 [ 32.884332][ C1] do_one_initcall+0x50/0x1b0 [ 32.885208][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.886271][ C1] kernel_init+0x14/0x118 [ 32.886953][ C1] ret_from_fork+0x10/0x34 [ 32.887654][ C1] ---[ end trace 90ece7d786ddf096 ]--- [ 32.888968][ C1] ------------[ cut here ]------------ [ 32.889632][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.891218][ C1] Modules linked in: [ 32.891933][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 32.893151][ C1] Hardware name: linux,dummy-virt (DT) [ 32.894674][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.895715][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.896524][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.897250][ C1] sp : ffff80001000be30 [ 32.897875][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.898887][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 32.900926][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.902540][ C1] x23: 0000000000000080 x22: 000000076c7988f0 [ 32.905003][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 32.906125][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffb [ 32.907058][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.908129][ C1] x15: 000005c3354e62fb x14: 00000000000000d2 [ 32.909103][ C1] x13: 0000000000000001 x12: 000000000000002d [ 32.910207][ C1] x11: 0000000000000001 x10: 00000000000000d2 [ 32.911205][ C1] x9 : 0000000001dd4eec x8 : 000000076c43db00 [ 32.912532][ C1] x7 : 7fffffffffffffff x6 : 000000076c43db00 [ 32.913607][ C1] x5 : 000000076c43db00 x4 : f0ff000003bf9498 [ 32.915420][ C1] x3 : 000000076d422700 x2 : 000000076c43db00 [ 32.916514][ C1] x1 : 000000076d422700 x0 : 0000000000000003 [ 32.917467][ C1] Call trace: [ 32.918061][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.918712][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.919433][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.920112][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.920802][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.921601][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.923046][ C1] gic_handle_irq+0x50/0xd0 [ 32.923898][ C1] el1_irq+0xb4/0x180 [ 32.924965][ C1] __kernfs_new_node+0x198/0x210 [ 32.925871][ C1] kernfs_create_dir_ns+0x5c/0xd0 [ 32.926589][ C1] sysfs_create_dir_ns+0x6c/0x110 [ 32.927300][ C1] kobject_add_internal+0xb4/0x2bc [ 32.928248][ C1] kobject_add+0x94/0x104 [ 32.929067][ C1] __blk_mq_register_dev+0x50/0x174 [ 32.929912][ C1] blk_register_queue+0xdc/0x220 [ 32.930664][ C1] __device_add_disk+0x328/0x490 [ 32.931563][ C1] device_add_disk+0x14/0x20 [ 32.932545][ C1] loop_add+0x1f4/0x260 [ 32.933339][ C1] loop_init+0x104/0x158 [ 32.934661][ C1] do_one_initcall+0x50/0x1b0 [ 32.935462][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.936142][ C1] kernel_init+0x14/0x118 [ 32.937012][ C1] ret_from_fork+0x10/0x34 [ 32.937856][ C1] ---[ end trace 90ece7d786ddf097 ]--- [ 33.040561][ C1] ------------[ cut here ]------------ [ 33.041358][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.043361][ C1] Modules linked in: [ 33.045480][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.050327][ C1] Hardware name: linux,dummy-virt (DT) [ 33.052217][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.057646][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.058434][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.059114][ C1] sp : ffff80001000be30 [ 33.059677][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.060633][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.061616][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.062596][ C1] x23: 0000000000000080 x22: 000000077580dfb0 [ 33.063515][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.064892][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffb [ 33.066170][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.067257][ C1] x15: 00006d2a9d7e3cc8 x14: 000000000000030b [ 33.068546][ C1] x13: 0000000000000001 x12: 0000000000000004 [ 33.070932][ C1] x11: 0000000000000001 x10: 000000000000030b [ 33.072743][ C1] x9 : 0000000001fac978 x8 : 0000000775348700 [ 33.074756][ C1] x7 : 7fffffffffffffff x6 : 0000000775348700 [ 33.076346][ C1] x5 : 0000000775348700 x4 : f0ff000003bf9498 [ 33.077362][ C1] x3 : 000000077632d300 x2 : 0000000775348700 [ 33.079322][ C1] x1 : 000000077632d300 x0 : 0000000000000009 [ 33.080353][ C1] Call trace: [ 33.080906][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.081782][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.082640][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.083447][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.084776][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.085554][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.086254][ C1] gic_handle_irq+0x50/0xd0 [ 33.087014][ C1] el1_irq+0xb4/0x180 [ 33.087699][ C1] __radix_tree_preload+0x0/0x100 [ 33.088408][ C1] __kernfs_new_node+0x7c/0x210 [ 33.089137][ C1] kernfs_new_node+0x48/0x70 [ 33.089916][ C1] __kernfs_create_file+0x30/0x160 [ 33.090639][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 33.091434][ C1] internal_create_group+0x104/0x3cc [ 33.092244][ C1] sysfs_create_group+0x18/0x24 [ 33.092982][ C1] blk_register_queue+0x94/0x220 [ 33.093792][ C1] __device_add_disk+0x328/0x490 [ 33.095072][ C1] device_add_disk+0x14/0x20 [ 33.095791][ C1] loop_add+0x1f4/0x260 [ 33.096494][ C1] loop_init+0x104/0x158 [ 33.097166][ C1] do_one_initcall+0x50/0x1b0 [ 33.097917][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.098696][ C1] kernel_init+0x14/0x118 [ 33.099382][ C1] ret_from_fork+0x10/0x34 [ 33.100103][ C1] ---[ end trace 90ece7d786ddf098 ]--- [ 33.101402][ C1] ------------[ cut here ]------------ [ 33.102036][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.103437][ C1] Modules linked in: [ 33.106056][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.107563][ C1] Hardware name: linux,dummy-virt (DT) [ 33.108360][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.109341][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.110260][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.111039][ C1] sp : ffff80001000be30 [ 33.111605][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.112671][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.113798][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.115311][ C1] x23: 0000000000000080 x22: 000000077922a620 [ 33.116300][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.117270][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffb [ 33.118253][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.119306][ C1] x15: 0000240b08efe697 x14: 000000000000036d [ 33.120297][ C1] x13: 0000000000000001 x12: 000000000000003a [ 33.121537][ C1] x11: 0000000000000001 x10: 000000000000036d [ 33.122642][ C1] x9 : 0000000002a4a7e3 x8 : 00000007782f6b00 [ 33.125518][ C1] x7 : 7fffffffffffffff x6 : 00000007782f6b00 [ 33.126602][ C1] x5 : 00000007782f6b00 x4 : f0ff000003bf9498 [ 33.128168][ C1] x3 : 00000007792db700 x2 : 00000007782f6b00 [ 33.129213][ C1] x1 : 00000007792db700 x0 : 0000000000000003 [ 33.130244][ C1] Call trace: [ 33.133565][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.134952][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.135699][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.136458][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.137336][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.138657][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.139520][ C1] gic_handle_irq+0x50/0xd0 [ 33.140489][ C1] el1_irq+0xb4/0x180 [ 33.141216][ C1] __radix_tree_preload+0x0/0x100 [ 33.142095][ C1] __kernfs_new_node+0x7c/0x210 [ 33.142931][ C1] kernfs_new_node+0x48/0x70 [ 33.143612][ C1] __kernfs_create_file+0x30/0x160 [ 33.144844][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 33.145617][ C1] internal_create_group+0x104/0x3cc [ 33.146364][ C1] sysfs_create_group+0x18/0x24 [ 33.147029][ C1] blk_register_queue+0x94/0x220 [ 33.147700][ C1] __device_add_disk+0x328/0x490 [ 33.148472][ C1] device_add_disk+0x14/0x20 [ 33.149439][ C1] loop_add+0x1f4/0x260 [ 33.150174][ C1] loop_init+0x104/0x158 [ 33.150949][ C1] do_one_initcall+0x50/0x1b0 [ 33.151979][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.153366][ C1] kernel_init+0x14/0x118 [ 33.155311][ C1] ret_from_fork+0x10/0x34 [ 33.156061][ C1] ---[ end trace 90ece7d786ddf099 ]--- [ 33.157538][ C1] ------------[ cut here ]------------ [ 33.158677][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.160491][ C1] Modules linked in: [ 33.162310][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.164732][ C1] Hardware name: linux,dummy-virt (DT) [ 33.165442][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.166295][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.167016][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.168001][ C1] sp : ffff80001000be30 [ 33.169115][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.171703][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.173316][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.175201][ C1] x23: 0000000000000080 x22: 000000077c7ef9f0 [ 33.176206][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.177225][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffb [ 33.178291][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.179574][ C1] x15: 0000240b08efe697 x14: 000000000000036d [ 33.180621][ C1] x13: 0000000000000001 x12: 000000000000003a [ 33.181891][ C1] x11: 0000000000000001 x10: 000000000000036d [ 33.183184][ C1] x9 : ffff800012a0f000 x8 : 000000077c289b00 [ 33.184692][ C1] x7 : 7fffffffffffffff x6 : 000000077c289b00 [ 33.186257][ C1] x5 : 000000077c289b00 x4 : f0ff000003bf9498 [ 33.187941][ C1] x3 : 000000077d26e700 x2 : 000000077c289b00 [ 33.189072][ C1] x1 : 000000077d26e700 x0 : 0000000000000004 [ 33.190549][ C1] Call trace: [ 33.191065][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.192563][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.193398][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.195804][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.197068][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.198460][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.199236][ C1] gic_handle_irq+0x50/0xd0 [ 33.200127][ C1] el1_irq+0xb4/0x180 [ 33.201346][ C1] __radix_tree_preload+0x0/0x100 [ 33.202642][ C1] __kernfs_new_node+0x7c/0x210 [ 33.204549][ C1] kernfs_new_node+0x48/0x70 [ 33.205838][ C1] __kernfs_create_file+0x30/0x160 [ 33.206623][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 33.207799][ C1] internal_create_group+0x104/0x3cc [ 33.209374][ C1] sysfs_create_group+0x18/0x24 [ 33.210887][ C1] blk_register_queue+0x94/0x220 [ 33.213721][ C1] __device_add_disk+0x328/0x490 [ 33.215249][ C1] device_add_disk+0x14/0x20 [ 33.216022][ C1] loop_add+0x1f4/0x260 [ 33.216708][ C1] loop_init+0x104/0x158 [ 33.217444][ C1] do_one_initcall+0x50/0x1b0 [ 33.218281][ C1] kernel_init_freeable+0x1d8/0x240 [ 33.219100][ C1] kernel_init+0x14/0x118 [ 33.219838][ C1] ret_from_fork+0x10/0x34 [ 33.220615][ C1] ---[ end trace 90ece7d786ddf09a ]--- [ 33.303366][ T1] loop: module loaded [ 33.322269][ C1] ------------[ cut here ]------------ [ 33.323221][ C1] WARNING: CPU: 1 PID: 27 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.325067][ C1] Modules linked in: [ 33.325922][ C1] CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.328144][ C1] Hardware name: linux,dummy-virt (DT) [ 33.330043][ C1] Workqueue: rcu_gp process_srcu [ 33.331437][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.333831][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.335011][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.335846][ C1] sp : ffff80001000be30 [ 33.336531][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.337608][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.338679][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.339721][ C1] x23: 0000000000000080 x22: 00000007865076b0 [ 33.340763][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.341929][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 33.343087][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.344346][ C1] x15: 0000000000000020 x14: 0000000000000000 [ 33.345437][ C1] x13: 0000000000000030 x12: 0000000000000040 [ 33.346541][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 33.347600][ C1] x9 : ffff8000127cbe80 x8 : 0000000786179300 [ 33.348643][ C1] x7 : 7fffffffffffffff x6 : 0000000786179300 [ 33.349725][ C1] x5 : 0000000786179300 x4 : f0ff000003bf9498 [ 33.350713][ C1] x3 : 000000078715df00 x2 : 0000000786179300 [ 33.351798][ C1] x1 : 000000078715df00 x0 : 000000000000000a [ 33.353026][ C1] Call trace: [ 33.353848][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.355166][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.355937][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.356824][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.357644][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.358559][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.359359][ C1] gic_handle_irq+0x50/0xd0 [ 33.360176][ C1] el1_irq+0xb4/0x180 [ 33.360951][ C1] __delay+0x24/0xb0 [ 33.361662][ C1] __const_udelay+0x28/0x34 [ 33.362806][ C1] try_check_zero+0xe4/0x130 [ 33.363714][ C1] process_srcu+0x15c/0x4c0 [ 33.365049][ C1] process_one_work+0x1d8/0x364 [ 33.365856][ C1] worker_thread+0x70/0x434 [ 33.366584][ C1] kthread+0x174/0x180 [ 33.367256][ C1] ret_from_fork+0x10/0x34 [ 33.367997][ C1] ---[ end trace 90ece7d786ddf09b ]--- [ 33.369305][ C1] ------------[ cut here ]------------ [ 33.370243][ C1] WARNING: CPU: 1 PID: 27 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.371995][ C1] Modules linked in: [ 33.372714][ C1] CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.376513][ C1] Hardware name: linux,dummy-virt (DT) [ 33.377298][ C1] Workqueue: rcu_gp process_srcu [ 33.378214][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.380340][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.383190][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.384519][ C1] sp : ffff80001000be30 [ 33.385151][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.387012][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.388384][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.389860][ C1] x23: 0000000000000080 x22: 00000007891edf90 [ 33.391089][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.392654][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 33.394041][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.395261][ C1] x15: 0000000000000020 x14: 000000000000ba7e [ 33.396324][ C1] x13: 00003a16e9165758 x12: 00e85e8be504e45e [ 33.397358][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 33.398444][ C1] x9 : 0000000000000800 x8 : 0000000789127700 [ 33.399454][ C1] x7 : 7fffffffffffffff x6 : 0000000789127700 [ 33.400529][ C1] x5 : 0000000789127700 x4 : f0ff000003bf9498 [ 33.401643][ C1] x3 : 000000078a10c300 x2 : 0000000789127700 [ 33.402719][ C1] x1 : 000000078a10c300 x0 : 0000000000000003 [ 33.403815][ C1] Call trace: [ 33.404368][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.405629][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.406754][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.407805][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.409000][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.410011][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.411247][ C1] gic_handle_irq+0x50/0xd0 [ 33.412027][ C1] el1_irq+0xb4/0x180 [ 33.412679][ C1] __delay+0x24/0xb0 [ 33.413331][ C1] __const_udelay+0x28/0x34 [ 33.414636][ C1] try_check_zero+0xe4/0x130 [ 33.415341][ C1] process_srcu+0x15c/0x4c0 [ 33.416135][ C1] process_one_work+0x1d8/0x364 [ 33.416869][ C1] worker_thread+0x70/0x434 [ 33.417592][ C1] kthread+0x174/0x180 [ 33.418287][ C1] ret_from_fork+0x10/0x34 [ 33.419036][ C1] ---[ end trace 90ece7d786ddf09c ]--- [ 33.420476][ C1] ------------[ cut here ]------------ [ 33.421216][ C1] WARNING: CPU: 1 PID: 27 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.422502][ C1] Modules linked in: [ 33.423171][ C1] CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.425681][ C1] Hardware name: linux,dummy-virt (DT) [ 33.426388][ C1] Workqueue: rcu_gp process_srcu [ 33.427241][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.428155][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.428837][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.429456][ C1] sp : ffff80001000be30 [ 33.429974][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.430859][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.431881][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.432922][ C1] x23: 0000000000000080 x22: 000000078c2698d0 [ 33.433983][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.435039][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 33.435772][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.436814][ C1] x15: 0000000000000020 x14: 000000000000ba7e [ 33.438020][ C1] x13: 000047f4c9d54b30 x12: 011fd8348e738578 [ 33.439166][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 33.440215][ C1] x9 : 0000000000000800 x8 : 000000078c0d5b00 [ 33.441354][ C1] x7 : 7fffffffffffffff x6 : 000000078c0d5b00 [ 33.442198][ C1] x5 : 000000078c0d5b00 x4 : f0ff000003bf9498 [ 33.443028][ C1] x3 : 000000078d0ba700 x2 : 000000078c0d5b00 [ 33.443747][ C1] x1 : 000000078d0ba700 x0 : 0000000000000003 [ 33.444983][ C1] Call trace: [ 33.445671][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.446372][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.447056][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.447770][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.448426][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.449069][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.449636][ C1] gic_handle_irq+0x50/0xd0 [ 33.450212][ C1] el1_irq+0xb4/0x180 [ 33.450727][ C1] __delay+0x24/0xb0 [ 33.451265][ C1] __const_udelay+0x28/0x34 [ 33.451850][ C1] try_check_zero+0xe4/0x130 [ 33.452479][ C1] process_srcu+0x15c/0x4c0 [ 33.453141][ C1] process_one_work+0x1d8/0x364 [ 33.453778][ C1] worker_thread+0x70/0x434 [ 33.454679][ C1] kthread+0x174/0x180 [ 33.455280][ C1] ret_from_fork+0x10/0x34 [ 33.455877][ C1] ---[ end trace 90ece7d786ddf09d ]--- [ 33.557259][ C1] ------------[ cut here ]------------ [ 33.558083][ C1] WARNING: CPU: 1 PID: 27 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.559594][ C1] Modules linked in: [ 33.560236][ C1] CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.561419][ C1] Hardware name: linux,dummy-virt (DT) [ 33.562335][ C1] Workqueue: rcu_gp process_srcu [ 33.563178][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.564373][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.565191][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.566119][ C1] sp : ffff80001000be30 [ 33.567071][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.568198][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.569107][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.570000][ C1] x23: 0000000000000080 x22: 00000007944f67a0 [ 33.570955][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.571915][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 33.572802][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.573770][ C1] x15: 0000000000000020 x14: 000000000000ba7e [ 33.574860][ C1] x13: 00001701ffffe8fe x12: 005c09a9ffa3f656 [ 33.575651][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 33.576579][ C1] x9 : 0000000000000800 x8 : 0000000793ffbb00 [ 33.577668][ C1] x7 : 7fffffffffffffff x6 : 0000000793ffbb00 [ 33.578648][ C1] x5 : 0000000793ffbb00 x4 : f0ff000003bf9498 [ 33.579625][ C1] x3 : 0000000794fe0700 x2 : 0000000793ffbb00 [ 33.580452][ C1] x1 : 0000000794fe0700 x0 : 0000000000000008 [ 33.581197][ C1] Call trace: [ 33.581733][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.582443][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.583060][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.583702][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.584614][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.585318][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.585993][ C1] gic_handle_irq+0x50/0xd0 [ 33.586647][ C1] el1_irq+0xb4/0x180 [ 33.587310][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 33.588201][ C1] process_srcu+0x74/0x4c0 [ 33.588980][ C1] process_one_work+0x1d8/0x364 [ 33.589766][ C1] worker_thread+0x70/0x434 [ 33.590580][ C1] kthread+0x174/0x180 [ 33.591346][ C1] ret_from_fork+0x10/0x34 [ 33.592278][ C1] ---[ end trace 90ece7d786ddf09e ]--- [ 33.593527][ C1] ------------[ cut here ]------------ [ 33.596001][ C1] WARNING: CPU: 1 PID: 27 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.597901][ C1] Modules linked in: [ 33.598825][ C1] CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.600347][ C1] Hardware name: linux,dummy-virt (DT) [ 33.601198][ C1] Workqueue: rcu_gp process_srcu [ 33.602188][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.603156][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.603855][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.605055][ C1] sp : ffff80001000be30 [ 33.605755][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.606795][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.607907][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.609196][ C1] x23: 0000000000000080 x22: 000000079677bf20 [ 33.610441][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.611528][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 33.612515][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.613491][ C1] x15: 0000000000000000 x14: 0000000000000041 [ 33.615033][ C1] x13: 0000000000000001 x12: 000000000000001a [ 33.616007][ C1] x11: 0000000000000001 x10: 0000000000000041 [ 33.616993][ C1] x9 : 000000000156ea13 x8 : 0000000795fc5300 [ 33.617975][ C1] x7 : 7fffffffffffffff x6 : 0000000795fc5300 [ 33.618963][ C1] x5 : 0000000795fc5300 x4 : f0ff000003bf9498 [ 33.619791][ C1] x3 : 0000000796fa9f00 x2 : 0000000795fc5300 [ 33.620746][ C1] x1 : 0000000796fa9f00 x0 : 0000000000000002 [ 33.621633][ C1] Call trace: [ 33.622043][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.622735][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.623487][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.624239][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.625009][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.625759][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.626337][ C1] gic_handle_irq+0x50/0xd0 [ 33.626998][ C1] el1_irq+0xb4/0x180 [ 33.627492][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 33.628149][ C1] process_srcu+0x74/0x4c0 [ 33.628760][ C1] process_one_work+0x1d8/0x364 [ 33.629421][ C1] worker_thread+0x70/0x434 [ 33.630232][ C1] kthread+0x174/0x180 [ 33.630881][ C1] ret_from_fork+0x10/0x34 [ 33.631802][ C1] ---[ end trace 90ece7d786ddf09f ]--- [ 33.632983][ C1] ------------[ cut here ]------------ [ 33.633605][ C1] WARNING: CPU: 1 PID: 27 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.635287][ C1] Modules linked in: [ 33.635915][ C1] CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.636717][ C1] Hardware name: linux,dummy-virt (DT) [ 33.637169][ C1] Workqueue: rcu_gp process_srcu [ 33.638030][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.638954][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.639643][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.640348][ C1] sp : ffff80001000be30 [ 33.640893][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.641928][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.642982][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.644138][ C1] x23: 0000000000000080 x22: 0000000798d2f500 [ 33.645251][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.646299][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 33.647207][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.648142][ C1] x15: 00002676abdcb08e x14: 0000000000000307 [ 33.649146][ C1] x13: 0000000000000001 x12: 0000000000000025 [ 33.650108][ C1] x11: 0000000000000001 x10: 0000000000000307 [ 33.651198][ C1] x9 : 000000000237f39d x8 : 0000000797f8eb00 [ 33.652290][ C1] x7 : 7fffffffffffffff x6 : 0000000797f8eb00 [ 33.653382][ C1] x5 : 0000000797f8eb00 x4 : f0ff000003bf9498 [ 33.654845][ C1] x3 : 0000000798f73700 x2 : 0000000797f8eb00 [ 33.655672][ C1] x1 : 0000000798f73700 x0 : 0000000000000002 [ 33.656632][ C1] Call trace: [ 33.657161][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.657948][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.658667][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.659260][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.659912][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.660614][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.661307][ C1] gic_handle_irq+0x50/0xd0 [ 33.661996][ C1] el1_irq+0xb4/0x180 [ 33.662611][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 33.663323][ C1] process_srcu+0x74/0x4c0 [ 33.664311][ C1] process_one_work+0x1d8/0x364 [ 33.665118][ C1] worker_thread+0x70/0x434 [ 33.665795][ C1] kthread+0x174/0x180 [ 33.666233][ C1] ret_from_fork+0x10/0x34 [ 33.666864][ C1] ---[ end trace 90ece7d786ddf0a0 ]--- [ 33.768362][ C1] ------------[ cut here ]------------ [ 33.769202][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.770429][ C1] Modules linked in: [ 33.771209][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.772482][ C1] Hardware name: linux,dummy-virt (DT) [ 33.773243][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.774425][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.775258][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.777206][ C1] sp : ffff80001000be30 [ 33.777843][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.779015][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.780097][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.781249][ C1] x23: 0000000000000080 x22: 00000007a0e3f270 [ 33.783375][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.786896][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 33.790336][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.793269][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 33.796956][ C1] x13: 000039d3a08b5c40 x12: 000000000000001a [ 33.799857][ C1] x11: 0000000000000006 x10: 0000000000000000 [ 33.802845][ C1] x9 : ffff00007fbd9c40 x8 : 000000079feb4b00 [ 33.806057][ C1] x7 : 7fffffffffffffff x6 : 000000079feb4b00 [ 33.807071][ C1] x5 : 000000079feb4b00 x4 : f0ff000003bf9498 [ 33.808165][ C1] x3 : 00000007a0e99700 x2 : 000000079feb4b00 [ 33.809159][ C1] x1 : 00000007a0e99700 x0 : 0000000000000008 [ 33.812028][ C1] Call trace: [ 33.813568][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.816598][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.819280][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.821457][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.823663][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.826300][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.827082][ C1] gic_handle_irq+0x50/0xd0 [ 33.827806][ C1] el1_irq+0xb4/0x180 [ 33.828982][ C1] arch_cpu_idle+0x18/0x30 [ 33.832704][ C1] default_idle_call+0x24/0x6c [ 33.834496][ C1] do_idle+0x22c/0x29c [ 33.836137][ C1] cpu_startup_entry+0x28/0x70 [ 33.836864][ C1] secondary_start_kernel+0x164/0x190 [ 33.837821][ C1] 0x0 [ 33.838924][ C1] ---[ end trace 90ece7d786ddf0a1 ]--- [ 33.840042][ C1] ------------[ cut here ]------------ [ 33.840776][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.844776][ C1] Modules linked in: [ 33.846265][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.850155][ C1] Hardware name: linux,dummy-virt (DT) [ 33.853800][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.855332][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.858333][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.859856][ C1] sp : ffff80001000be30 [ 33.862321][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.863626][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.865351][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.866588][ C1] x23: 0000000000000080 x22: 00000007a52d31f0 [ 33.867692][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.869059][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 33.870302][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.871616][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 33.872870][ C1] x13: 000039d3a08b5c40 x12: 000000000000001a [ 33.875242][ C1] x11: 0000000000000006 x10: 0000000000000000 [ 33.876213][ C1] x9 : ffff800012a0f000 x8 : 00000007a4e2c700 [ 33.877338][ C1] x7 : 7fffffffffffffff x6 : 00000007a4e2c700 [ 33.878488][ C1] x5 : 00000007a4e2c700 x4 : f0ff000003bf9498 [ 33.879793][ C1] x3 : 00000007a5e11300 x2 : 00000007a4e2c700 [ 33.880873][ C1] x1 : 00000007a5e11300 x0 : 0000000000000005 [ 33.881986][ C1] Call trace: [ 33.882539][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.883362][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.884326][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.885102][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.885864][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.886831][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.887657][ C1] gic_handle_irq+0x50/0xd0 [ 33.888426][ C1] el1_irq+0xb4/0x180 [ 33.889143][ C1] arch_cpu_idle+0x18/0x30 [ 33.889903][ C1] default_idle_call+0x24/0x6c [ 33.890631][ C1] do_idle+0x22c/0x29c [ 33.891365][ C1] cpu_startup_entry+0x28/0x70 [ 33.892179][ C1] secondary_start_kernel+0x164/0x190 [ 33.893175][ C1] 0x0 [ 33.893777][ C1] ---[ end trace 90ece7d786ddf0a2 ]--- [ 33.895504][ C1] ------------[ cut here ]------------ [ 33.896332][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 33.897800][ C1] Modules linked in: [ 33.898512][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 33.900147][ C1] Hardware name: linux,dummy-virt (DT) [ 33.900980][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 33.901985][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 33.902787][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 33.903765][ C1] sp : ffff80001000be30 [ 33.910187][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 33.911329][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 33.912495][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 33.913664][ C1] x23: 0000000000000080 x22: 00000007a87bebc0 [ 33.914998][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 33.916002][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 33.917063][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 33.918196][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 33.919278][ C1] x13: ffff8000126b7000 x12: 0000000000000125 [ 33.920364][ C1] x11: 0000000000000079 x10: 0000000000000000 [ 33.921433][ C1] x9 : ffff00007fbd9c40 x8 : 00000007a7ddab00 [ 33.922553][ C1] x7 : 7fffffffffffffff x6 : 00000007a7ddab00 [ 33.925054][ C1] x5 : 00000007a7ddab00 x4 : f0ff000003bf9498 [ 33.926026][ C1] x3 : 00000007a8dbf700 x2 : 00000007a7ddab00 [ 33.927033][ C1] x1 : 00000007a8dbf700 x0 : 0000000000000003 [ 33.928023][ C1] Call trace: [ 33.928577][ C1] vkms_vblank_simulate+0x120/0x130 [ 33.929277][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 33.930089][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 33.930798][ C1] arch_timer_handler_phys+0x38/0x50 [ 33.931591][ C1] handle_percpu_devid_irq+0x84/0x150 [ 33.941454][ C1] __handle_domain_irq+0x7c/0xe0 [ 33.942280][ C1] gic_handle_irq+0x50/0xd0 [ 33.943036][ C1] el1_irq+0xb4/0x180 [ 33.943722][ C1] arch_cpu_idle+0x18/0x30 [ 33.944719][ C1] default_idle_call+0x24/0x6c [ 33.946140][ C1] do_idle+0x22c/0x29c [ 33.946823][ C1] cpu_startup_entry+0x28/0x70 [ 33.947549][ C1] secondary_start_kernel+0x164/0x190 [ 33.948323][ C1] 0x0 [ 33.948910][ C1] ---[ end trace 90ece7d786ddf0a3 ]--- [ 34.051635][ C1] ------------[ cut here ]------------ [ 34.052481][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 34.053777][ C1] Modules linked in: [ 34.054859][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 34.056128][ C1] Hardware name: linux,dummy-virt (DT) [ 34.056832][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 34.057824][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 34.058793][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 34.061387][ C1] sp : ffff80001000be30 [ 34.062481][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 34.065058][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 34.068501][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 34.071625][ C1] x23: 0000000000000080 x22: 00000007b1c8ede0 [ 34.073340][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 34.077657][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 34.078773][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 34.079977][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 34.081136][ C1] x13: 0000000000000003 x12: 0000000000000040 [ 34.082309][ C1] x11: f8ff000003400260 x10: f8ff000003400262 [ 34.083513][ C1] x9 : ffff8000127cbe80 x8 : 00000007b0ce5700 [ 34.084914][ C1] x7 : 7fffffffffffffff x6 : 00000007b0ce5700 [ 34.086250][ C1] x5 : 00000007b0ce5700 x4 : f0ff000003bf9498 [ 34.087293][ C1] x3 : 00000007b1cca300 x2 : 00000007b0ce5700 [ 34.088842][ C1] x1 : 00000007b1cca300 x0 : 0000000000000009 [ 34.089908][ C1] Call trace: [ 34.090507][ C1] vkms_vblank_simulate+0x120/0x130 [ 34.091369][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 34.092202][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 34.093021][ C1] arch_timer_handler_phys+0x38/0x50 [ 34.093900][ C1] handle_percpu_devid_irq+0x84/0x150 [ 34.094785][ C1] __handle_domain_irq+0x7c/0xe0 [ 34.095598][ C1] gic_handle_irq+0x50/0xd0 [ 34.096286][ C1] el1_irq+0xb4/0x180 [ 34.096928][ C1] arch_cpu_idle+0x18/0x30 [ 34.097692][ C1] default_idle_call+0x24/0x6c [ 34.098474][ C1] do_idle+0x22c/0x29c [ 34.099172][ C1] cpu_startup_entry+0x28/0x70 [ 34.099822][ C1] secondary_start_kernel+0x164/0x190 [ 34.100518][ C1] 0x0 [ 34.101855][ C1] ---[ end trace 90ece7d786ddf0a4 ]--- [ 34.103655][ C1] ------------[ cut here ]------------ [ 34.104928][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 34.106277][ C1] Modules linked in: [ 34.106931][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 34.108094][ C1] Hardware name: linux,dummy-virt (DT) [ 34.108928][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 34.111454][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 34.113232][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 34.116458][ C1] sp : ffff80001000be30 [ 34.117727][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 34.119227][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 34.120950][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 34.122095][ C1] x23: 0000000000000080 x22: 00000007b4e3c430 [ 34.123142][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 34.124347][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 34.127314][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 34.129436][ C1] x15: 0000000000000000 x14: 000000000000ba7e [ 34.132943][ C1] x13: 0000260bcbc98eaa x12: 000000000000038d [ 34.135759][ C1] x11: 0000000000000017 x10: 0000000000000000 [ 34.137548][ C1] x9 : ffff00007fbd9c40 x8 : 00000007b4c78700 [ 34.139765][ C1] x7 : 7fffffffffffffff x6 : 00000007b4c78700 [ 34.141062][ C1] x5 : 00000007b4c78700 x4 : f0ff000003bf9498 [ 34.143040][ C1] x3 : 00000007b5c5d300 x2 : 00000007b4c78700 [ 34.144396][ C1] x1 : 00000007b5c5d300 x0 : 0000000000000004 [ 34.145934][ C1] Call trace: [ 34.147130][ C1] vkms_vblank_simulate+0x120/0x130 [ 34.150414][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 34.152156][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 34.153492][ C1] arch_timer_handler_phys+0x38/0x50 [ 34.156795][ C1] handle_percpu_devid_irq+0x84/0x150 [ 34.158633][ C1] __handle_domain_irq+0x7c/0xe0 [ 34.159538][ C1] gic_handle_irq+0x50/0xd0 [ 34.160647][ C1] el1_irq+0xb4/0x180 [ 34.161630][ C1] arch_cpu_idle+0x18/0x30 [ 34.162445][ C1] default_idle_call+0x24/0x6c [ 34.163353][ C1] do_idle+0x22c/0x29c [ 34.165312][ C1] cpu_startup_entry+0x28/0x70 [ 34.166088][ C1] secondary_start_kernel+0x164/0x190 [ 34.167795][ C1] 0x0 [ 34.168770][ C1] ---[ end trace 90ece7d786ddf0a5 ]--- [ 34.170086][ C1] ------------[ cut here ]------------ [ 34.170814][ C1] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 34.172151][ C1] Modules linked in: [ 34.173286][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 34.175667][ C1] Hardware name: linux,dummy-virt (DT) [ 34.177064][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 34.178038][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 34.178906][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 34.179752][ C1] sp : ffff80001000be30 [ 34.180367][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 34.181437][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 34.182693][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 34.184532][ C1] x23: 0000000000000080 x22: 00000007b8d5bfa0 [ 34.185924][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 34.188433][ C1] x19: f0ff000003bf9498 x18: 000000000000000e [ 34.190979][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 34.192446][ C1] x15: 0000000000000000 x14: 0000000000000000 [ 34.193629][ C1] x13: ffff8000126b7000 x12: 0000000000000106 [ 34.194924][ C1] x11: 0000000000000040 x10: 0000000000000000 [ 34.198718][ C1] x9 : ffff00007fbd9c40 x8 : 00000007b8c0b700 [ 34.201293][ C1] x7 : 7fffffffffffffff x6 : 00000007b8c0b700 [ 34.203004][ C1] x5 : 00000007b8c0b700 x4 : f0ff000003bf9498 [ 34.207226][ C1] x3 : 00000007b9bf0300 x2 : 00000007b8c0b700 [ 34.208990][ C1] x1 : 00000007b9bf0300 x0 : 0000000000000004 [ 34.210497][ C1] Call trace: [ 34.211990][ C1] vkms_vblank_simulate+0x120/0x130 [ 34.212854][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 34.214484][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 34.215794][ C1] arch_timer_handler_phys+0x38/0x50 [ 34.216903][ C1] handle_percpu_devid_irq+0x84/0x150 [ 34.217971][ C1] __handle_domain_irq+0x7c/0xe0 [ 34.218815][ C1] gic_handle_irq+0x50/0xd0 [ 34.219686][ C1] el1_irq+0xb4/0x180 [ 34.220438][ C1] arch_cpu_idle+0x18/0x30 [ 34.221803][ C1] default_idle_call+0x24/0x6c [ 34.222614][ C1] do_idle+0x22c/0x29c [ 34.223381][ C1] cpu_startup_entry+0x28/0x70 [ 34.224408][ C1] secondary_start_kernel+0x164/0x190 [ 34.225170][ C1] 0x0 [ 34.225805][ C1] ---[ end trace 90ece7d786ddf0a6 ]--- [ 34.327394][ C1] ------------[ cut here ]------------ [ 34.328200][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 34.329571][ C1] Modules linked in: [ 34.330602][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 34.332004][ C1] Hardware name: linux,dummy-virt (DT) [ 34.332722][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 34.333672][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 34.334697][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 34.335534][ C1] sp : ffff80001000be30 [ 34.336102][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 34.337313][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 34.338491][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 34.339590][ C1] x23: 0000000000000080 x22: 00000007c2359a50 [ 34.340697][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 34.341875][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 34.342982][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 34.345074][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 34.346556][ C1] x13: 00002cba850c53ca x12: 00b2ee7b0622c201 [ 34.347616][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 34.348726][ C1] x9 : 0000000000000400 x8 : 00000007c1b16300 [ 34.349773][ C1] x7 : 7fffffffffffffff x6 : 00000007c1b16300 [ 34.350927][ C1] x5 : 00000007c1b16300 x4 : f0ff000003bf9498 [ 34.351998][ C1] x3 : 00000007c2afaf00 x2 : 00000007c1b16300 [ 34.353055][ C1] x1 : 00000007c2afaf00 x0 : 0000000000000009 [ 34.354370][ C1] Call trace: [ 34.355182][ C1] vkms_vblank_simulate+0x120/0x130 [ 34.355996][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 34.356765][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 34.357663][ C1] arch_timer_handler_phys+0x38/0x50 [ 34.358705][ C1] handle_percpu_devid_irq+0x84/0x150 [ 34.359724][ C1] __handle_domain_irq+0x7c/0xe0 [ 34.361183][ C1] gic_handle_irq+0x50/0xd0 [ 34.362048][ C1] el1_irq+0xb4/0x180 [ 34.362844][ C1] clear_page+0x14/0x28 [ 34.363731][ C1] get_page_from_freelist+0x17c4/0x17f4 [ 34.365153][ C1] __alloc_pages_nodemask+0x164/0xcb0 [ 34.366040][ C1] blk_mq_alloc_rqs+0x114/0x27c [ 34.366666][ C1] __blk_mq_alloc_map_and_request+0x54/0xf0 [ 34.367525][ C1] blk_mq_alloc_tag_set+0x168/0x36c [ 34.368343][ C1] nbd_dev_add+0xf4/0x294 [ 34.369092][ C1] nbd_init+0x118/0x14c [ 34.369850][ C1] do_one_initcall+0x50/0x1b0 [ 34.370597][ C1] kernel_init_freeable+0x1d8/0x240 [ 34.371319][ C1] kernel_init+0x14/0x118 [ 34.372202][ C1] ret_from_fork+0x10/0x34 [ 34.373056][ C1] ---[ end trace 90ece7d786ddf0a7 ]--- [ 34.374562][ C1] ------------[ cut here ]------------ [ 34.375361][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 34.376713][ C1] Modules linked in: [ 34.377522][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc8-syzkaller-00046-g2a1d7946fa53 #0 [ 34.378840][ C1] Hardware name: linux,dummy-virt (DT) [ 34.379583][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 34.380511][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 34.381334][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 34.382140][ C1] sp : ffff80001000be30 [ 34.382686][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 34.383759][ C1] x27: ffff00007fbd4e40 x26: ffff800010801f90 [ 34.385042][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 34.386336][ C1] x23: 0000000000000080 x22: 00000007c504a090 [ 34.387477][ C1] x21: 0000000000fe4c00 x20: f0ff000003bf8628 [ 34.388649][ C1] x19: f0ff000003bf9498 x18: 00000000fffffffe [ 34.389841][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 34.391114][ C1] x15: 0000807c7c73020f x14: 0000000000000385 [ 34.392520][ C1] x13: 0000000000000001 x12: 0000000000000010 [ 34.393669][ C1] x11: 0000000000000001 x10: 0000000000000385 [ 34.394883][ C1] x9 : 000000000323b54b x8 : 00000007c4ac4700 [ 34.396112][ C1] x7 : 7fffffffffffffff x6 : 00000007c4ac4700 [ 34.397194][ C1] x5 : 00000007c4ac4700 x4 : f0ff000003bf9498 [ 34.398453][ C1] x3 : 00000007c5aa9300 x2 : 00000007c4ac4700 [ 34.399600][ C1] x1 : 00000007c5aa9300 x0 : 0000000000000003 [ 34.400721][ C1] Call trace: [ 34.401319][ C1] vkms_vblank_simulate+0x120/0x130 [ 34.402186][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 34.402898][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 34.403372][ C1] arch_timer_handler_phys+0x38/0x50 [ 34.404293][ C1] handle_percpu_devid_irq+0x84/0x150 [ 34.405356][ C1] __handle_domain_irq+0x7c/0xe0 [ 34.406700][ C1] gic_handle_irq+0x50/0xd0 [ 34.407541][ C1] el1_irq+0xb4/0x180 [ 34.409836][ C1] clear_page+0x14/0x28 [ 34.411334][ C1] get_page_from_freelist+0x17c4/0x17f4 [ 34.412176][ C1] __alloc_pages_nodemask+0x164/0xcb0 [ 34.412912][ C1] blk_mq_alloc_rqs+0x114/0x27c [ 34.413453][ C1] __blk_mq_alloc_map_and_request+0x54/0xf0 [ 34.414073][ C1] blk_mq_alloc_tag_set+0x168/0x36c [ 34.414704][ C1] nbd_dev_add+0xf4/0x294 [ 34.415255][ C1] nbd_init+0x118/0x14c [ 34.415743][ C1] do_one_initcall+0x50/0x1b0 [ 34.416471][ C1] kernel_init_freeable+0x1d8/0x240 [ 34.417471][ C1] kernel_init+0x14/0x118 [ 34.419170][ C1] ret_from_fork+0x10/0x34 [ 34.420669][ C1] ---[ end trace 90ece7d786ddf0a8 ]---