failed to run ["ssh" "-p" "43242" "-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 43242 timed out [ 0.000000][ T0] Booting Linux on physical CPU 0x0000000000 [0x000f0510] [ 0.000000][ T0] Linux version 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 (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, 2238K rwdata, 15032K rodata, 960K init, 1443K 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 [ 0.000102][ T0] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.013406][ T0] Console: colour dummy device 80x25 [ 0.021061][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.022526][ T0] pid_max: default: 32768 minimum: 301 [ 0.030320][ T0] LSM: Security Framework initializing [ 0.033604][ T0] Yama: becoming mindful. [ 0.036986][ T0] TOMOYO Linux initialized [ 0.039053][ T0] Smack: Initializing. [ 0.039194][ T0] Smack: Netfilter enabled. [ 0.039307][ T0] Smack: IPv6 Netfilter enabled. [ 0.043526][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.044226][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.198322][ T1] rcu: Hierarchical SRCU implementation. [ 0.222100][ T1] EFI services will not be available. [ 0.232728][ T1] smp: Bringing up secondary CPUs ... [ 0.259396][ T0] Detected PIPT I-cache on CPU1 [ 0.266295][ T0] CPU1: Booted secondary processor 0x0000000001 [0x000f0510] [ 0.273442][ T1] smp: Brought up 1 node, 2 CPUs [ 0.274060][ T1] SMP: Total of 2 processors activated. [ 0.274688][ T1] CPU features: detected: Privileged Access Never [ 0.274967][ T1] CPU features: detected: LSE atomic instructions [ 0.275209][ T1] CPU features: detected: 32-bit EL0 Support [ 0.275510][ T1] CPU features: detected: Common not Private translations [ 0.275822][ T1] CPU features: detected: Data cache clean to Point of Persistence [ 0.276079][ T1] CPU features: detected: Scalable Vector Extension [ 0.276413][ T1] CPU features: detected: CRC32 instructions [ 0.276698][ T1] CPU features: detected: Speculation barrier (SB) [ 0.276936][ T1] CPU features: detected: Generic authentication (architected algorithm) [ 0.277189][ T1] CPU features: detected: Data cache clean to Point of Deep Persistence [ 0.278500][ T1] CPU features: detected: Random Number Generator [ 0.278866][ T1] CPU features: detected: 32-bit EL1 Support [ 0.279133][ T1] CPU features: detected: RCpc load-acquire (LDAPR) [ 0.892008][ T1] SVE: maximum available vector length 256 bytes per vector [ 0.898467][ T1] SVE: default vector length 64 bytes per vector [ 1.430863][ T1] CPU: All CPU(s) started at EL2 [ 1.630892][ T1] devtmpfs: initialized [ 1.931504][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.933996][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, linear) [ 2.243904][ T1] DMI not present or invalid. [ 2.281364][ T1] NET: Registered protocol family 16 [ 2.448572][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 2.457164][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 2.475003][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 2.481169][ T1] audit: initializing netlink subsys (disabled) [ 2.497517][ T35] audit: type=2000 audit(2.230:1): state=initialized audit_enabled=0 res=1 [ 2.635779][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.636003][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 2.646743][ T1] cpuidle: using governor menu [ 2.655260][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 2.657231][ T1] ASID allocator initialised with 32768 entries [ 2.679344][ T1] Serial: AMBA PL011 UART driver [ 3.223574][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 48, base_baud = 0) is a PL011 rev1 [ 3.354528][ T1] printk: console [ttyAMA0] enabled [ 10.298011][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 10.303170][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 10.306925][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.309075][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 10.715779][ T1] cryptd: max_cpu_qlen set to 1000 [ 11.461934][ T1] raid6: neonx8 gen() 120 MB/s [ 11.639232][ T1] raid6: neonx8 xor() 68 MB/s [ 11.820979][ T1] raid6: neonx4 gen() 129 MB/s [ 11.997717][ T1] raid6: neonx4 xor() 65 MB/s [ 12.174736][ T1] raid6: neonx2 gen() 119 MB/s [ 12.350894][ T1] raid6: neonx2 xor() 66 MB/s [ 12.528099][ T1] raid6: neonx1 gen() 112 MB/s [ 12.704700][ T1] raid6: neonx1 xor() 63 MB/s [ 12.881892][ T1] raid6: int64x8 gen() 77 MB/s [ 13.058956][ T1] raid6: int64x8 xor() 64 MB/s [ 13.235392][ T1] raid6: int64x4 gen() 112 MB/s [ 13.411694][ T1] raid6: int64x4 xor() 56 MB/s [ 13.590344][ T1] raid6: int64x2 gen() 72 MB/s [ 13.766657][ T1] raid6: int64x2 xor() 41 MB/s [ 13.942698][ T1] raid6: int64x1 gen() 70 MB/s [ 14.118850][ T1] raid6: int64x1 xor() 39 MB/s [ 14.119726][ T1] raid6: using algorithm neonx4 gen() 129 MB/s [ 14.120522][ T1] raid6: .... xor() 65 MB/s, rmw enabled [ 14.121398][ T1] raid6: using neon recovery algorithm [ 14.164144][ T1] ACPI: Interpreter disabled. [ 14.223170][ T1] iommu: Default domain type: Translated [ 14.238882][ T1] vgaarb: loaded [ 14.327658][ T1] SCSI subsystem initialized [ 14.385258][ T1] usbcore: registered new interface driver usbfs [ 14.399200][ T1] usbcore: registered new interface driver hub [ 14.413866][ T1] usbcore: registered new device driver usb [ 14.438420][ T1] pps_core: LinuxPPS API ver. 1 registered [ 14.439193][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 14.443522][ T1] PTP clock support registered [ 14.481295][ T1] EDAC MC: Ver: 3.0.0 [ 14.694590][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 14.800599][ T1] NetLabel: Initializing [ 14.801268][ T1] NetLabel: domain hash size = 128 [ 14.802461][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 14.810536][ T1] NetLabel: unlabeled traffic allowed by default [ 14.822012][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 14.831577][ T1] NET: Registered protocol family 39 [ 14.853255][ T1] clocksource: Switched to clocksource arch_sys_counter [ 14.907819][ T1] VFS: Disk quotas dquot_6.6.0 [ 14.914452][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 14.933990][ T1] FS-Cache: Loaded [ 14.988361][ T1] CacheFiles: Loaded [ 15.005014][ T1] TOMOYO: 2.6.0 [ 15.005785][ T1] Mandatory Access Control activated. [ 15.059646][ T1] pnp: PnP ACPI: disabled [ 16.179933][ T1] NET: Registered protocol family 2 [ 16.220486][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear) [ 16.226869][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 16.233900][ T1] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear) [ 16.239002][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 16.250255][ T1] MPTCP token hash table entries: 2048 (order: 3, 49152 bytes, linear) [ 16.255753][ T1] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 16.260321][ T1] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear) [ 16.272878][ T1] NET: Registered protocol family 1 [ 16.274614][ T1] NET: Registered protocol family 44 [ 16.275613][ T1] PCI: CLS 0 bytes, default 64 [ 16.383350][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 16.390596][ T1] kvm [1]: IPA Size Limit: 48 bits [ 16.398617][ T1] kvm [1]: vgic interrupt IRQ9 [ 16.407054][ T1] kvm [1]: VHE mode initialized successfully [ 17.140282][ T1] Initialise system trusted keyrings [ 17.160285][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 17.897531][ T1] zbud: loaded [ 18.127769][ T1] DLM installed [ 18.410383][ T1] fuse: init (API version 7.33) [ 18.640626][ T1] NET: Registered protocol family 38 [ 18.651437][ T1] xor: measuring software checksum speed [ 18.924066][ T1] 8regs : 36 MB/sec [ 19.119397][ T1] 32regs : 52 MB/sec [ 19.260407][ T1] arm64_neon : 74 MB/sec [ 19.284662][ T1] xor: using function: arm64_neon (74 MB/sec) [ 19.286731][ T1] async_tx: api initialized (async) [ 19.287697][ T1] Key type asymmetric registered [ 19.288573][ T1] Asymmetric key parser 'x509' registered [ 19.289340][ T1] Asymmetric key parser 'pkcs8' registered [ 19.290089][ T1] Key type pkcs7_test registered [ 19.291877][ T1] Asymmetric key parser 'tpm_parser' registered [ 19.294912][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 19.310002][ T1] io scheduler mq-deadline registered [ 19.311429][ T1] io scheduler kyber registered [ 19.328757][ T1] io scheduler bfq registered [ 19.475295][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 19.567318][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 19.580500][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 19.589619][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 19.593072][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 19.595617][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 19.599746][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 19.623613][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 19.625187][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 19.627876][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 19.630491][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 19.634408][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 19.638340][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 19.662644][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 19.664454][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 19.665850][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 19.695835][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 19.697137][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 19.698029][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 19.699120][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 19.699973][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 19.721917][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 19.724847][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 19.726683][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 19.728050][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 19.785786][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 19.787489][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 19.789021][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 19.790522][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 19.793777][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 19.796625][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 19.799343][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 19.800477][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 19.802180][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 19.844129][ T1] usbcore: registered new interface driver udlfb [ 19.880370][ T1] uvesafb: failed to execute /sbin/v86d [ 19.892270][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 19.895184][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 19.898031][ T1] uvesafb: vbe_init() failed with -22 [ 19.901921][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 19.907996][ T1] IPMI message handler: version 39.2 [ 19.917141][ T1] ipmi device interface [ 19.930304][ T1] ipmi_si: IPMI System Interface driver [ 19.951640][ T1] ipmi_si: Unable to find any System Interface(s) [ 19.983564][ T1] EINJ: ACPI disabled. [ 20.212146][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 20.233185][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 20.247423][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 26.568660][ T1] N_HDLC line discipline registered with maxframe=4096 [ 26.572988][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 26.840642][ T1] Cyclades driver 2.6 [ 26.863888][ T1] Initializing Nozomi driver 2.1d [ 26.882817][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 26.885161][ T1] No rocketport ports found; unloading driver [ 27.137017][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 27.241926][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 27.737595][ T1] Console: switching to colour frame buffer device 128x48 [ 27.845158][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 27.876987][ C1] ------------[ cut here ]------------ [ 27.877844][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 27.882400][ C1] Modules linked in: [ 27.884488][ C1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 27.885841][ C1] Hardware name: linux,dummy-virt (DT) [ 27.888414][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 27.889524][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 27.892039][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 27.892905][ C1] sp : ffff80001000be30 [ 27.893490][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 27.895150][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 27.896071][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 27.897345][ C1] x23: 0000000000000080 x22: 000000064608d450 [ 27.898419][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 27.899767][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 27.902933][ C1] x17: 0000000000000001 x16: 0000000000000001 [ 27.905505][ C1] x15: 00005916ffffa6e9 x14: 00000000000002d8 [ 27.908054][ C1] x13: 0000000000000001 x12: 0000000000000020 [ 27.910451][ C1] x11: 0000000000000001 x10: 00000000000002d8 [ 27.911906][ C1] x9 : 0000000002d8fac3 x8 : 0000000645a11d50 [ 27.912891][ C1] x7 : 7fffffffffffffff x6 : 0000000645a11d50 [ 27.913720][ C1] x5 : 0000000645a11d50 x4 : f6ff000003b55498 [ 27.914693][ C1] x3 : 00000006469f6950 x2 : 0000000645a11d50 [ 27.915673][ C1] x1 : 00000006469f6950 x0 : 0000000000000002 [ 27.916923][ C1] Call trace: [ 27.917502][ C1] vkms_vblank_simulate+0x120/0x130 [ 27.918225][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 27.920103][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 27.922107][ C1] arch_timer_handler_phys+0x38/0x50 [ 27.922869][ C1] handle_percpu_devid_irq+0x84/0x150 [ 27.923584][ C1] __handle_domain_irq+0x7c/0xe0 [ 27.924326][ C1] gic_handle_irq+0x50/0xd0 [ 27.925009][ C1] el1_irq+0xb4/0x180 [ 27.925677][ C1] queue_work_on+0x2c/0x80 [ 27.926440][ C1] call_usermodehelper_exec+0x134/0x200 [ 27.927474][ C1] kobject_uevent_env+0x578/0x690 [ 27.928754][ C1] kobject_uevent+0x14/0x20 [ 27.929326][ C1] driver_register+0xb4/0x130 [ 27.931051][ C1] usb_register_driver+0x80/0x150 [ 27.932857][ C1] udl_driver_init+0x24/0x30 [ 27.934723][ C1] do_one_initcall+0x50/0x1b0 [ 27.935877][ C1] kernel_init_freeable+0x1d8/0x240 [ 27.937208][ C1] kernel_init+0x14/0x118 [ 27.938497][ C1] ret_from_fork+0x10/0x34 [ 27.939416][ C1] ---[ end trace dc83b52b5dca1351 ]--- [ 27.941209][ C1] ------------[ cut here ]------------ [ 27.941847][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 27.942965][ C1] Modules linked in: [ 27.945086][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 27.946829][ C1] Hardware name: linux,dummy-virt (DT) [ 27.947878][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 27.948657][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 27.949368][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 27.950035][ C1] sp : ffff80001000be30 [ 27.950555][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 27.951959][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 27.953302][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 27.954625][ C1] x23: 0000000000000080 x22: 0000000649eb0210 [ 27.955945][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 27.957368][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 27.959379][ C1] x17: 0000000000000001 x16: 0000000000000001 [ 27.960341][ C1] x15: 00002f935d788312 x14: 0000000000000393 [ 27.961334][ C1] x13: 0000000000000001 x12: 000000000000003e [ 27.962152][ C1] x11: 0000000000000001 x10: 0000000000000393 [ 27.962915][ C1] x9 : 0000000002e50c44 x8 : 00000006499a4d50 [ 27.963673][ C1] x7 : 7fffffffffffffff x6 : 00000006499a4d50 [ 27.964477][ C1] x5 : 00000006499a4d50 x4 : f6ff000003b55498 [ 27.965268][ C1] x3 : 000000064a989950 x2 : 00000006499a4d50 [ 27.966038][ C1] x1 : 000000064a989950 x0 : 0000000000000004 [ 27.966798][ C1] Call trace: [ 27.967263][ C1] vkms_vblank_simulate+0x120/0x130 [ 27.967897][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 27.968471][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 27.969090][ C1] arch_timer_handler_phys+0x38/0x50 [ 27.969687][ C1] handle_percpu_devid_irq+0x84/0x150 [ 27.970296][ C1] __handle_domain_irq+0x7c/0xe0 [ 27.971092][ C1] gic_handle_irq+0x50/0xd0 [ 27.971733][ C1] el1_irq+0xb4/0x180 [ 27.972301][ C1] queue_work_on+0x2c/0x80 [ 27.972844][ C1] call_usermodehelper_exec+0x134/0x200 [ 27.973477][ C1] kobject_uevent_env+0x578/0x690 [ 27.974053][ C1] kobject_uevent+0x14/0x20 [ 27.974590][ C1] driver_register+0xb4/0x130 [ 27.975168][ C1] usb_register_driver+0x80/0x150 [ 27.975756][ C1] udl_driver_init+0x24/0x30 [ 27.976583][ C1] do_one_initcall+0x50/0x1b0 [ 27.977167][ C1] kernel_init_freeable+0x1d8/0x240 [ 27.977776][ C1] kernel_init+0x14/0x118 [ 27.978315][ C1] ret_from_fork+0x10/0x34 [ 27.978934][ C1] ---[ end trace dc83b52b5dca1352 ]--- [ 27.979939][ C1] ------------[ cut here ]------------ [ 27.980473][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 27.982676][ C1] Modules linked in: [ 27.983224][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 27.984253][ C1] Hardware name: linux,dummy-virt (DT) [ 27.984802][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 27.985487][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 27.986109][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 27.986706][ C1] sp : ffff80001000be30 [ 27.987190][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 27.987998][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 27.988789][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 27.989559][ C1] x23: 0000000000000080 x22: 000000064c3db6f0 [ 27.990370][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 27.991623][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 27.992457][ C1] x17: 0000000000000001 x16: 0000000000000001 [ 27.993232][ C1] x15: 0000531ef7d7fea6 x14: 00000000000003ad [ 27.993983][ C1] x13: 0000000000000001 x12: 0000000000000025 [ 27.994766][ C1] x11: 0000000000000001 x10: 00000000000003ad [ 27.995544][ C1] x9 : 0000000002e739c9 x8 : 000000064b96e550 [ 27.996349][ C1] x7 : 7fffffffffffffff x6 : 000000064b96e550 [ 27.997129][ C1] x5 : 000000064b96e550 x4 : f6ff000003b55498 [ 27.997894][ C1] x3 : 000000064c953150 x2 : 000000064b96e550 [ 27.998687][ C1] x1 : 000000064c953150 x0 : 0000000000000002 [ 27.999504][ C1] Call trace: [ 27.999972][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.000576][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.001371][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.002051][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.002656][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.003264][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.003920][ C1] gic_handle_irq+0x50/0xd0 [ 28.004479][ C1] el1_irq+0xb4/0x180 [ 28.005002][ C1] queue_work_on+0x2c/0x80 [ 28.005548][ C1] call_usermodehelper_exec+0x134/0x200 [ 28.006198][ C1] kobject_uevent_env+0x578/0x690 [ 28.006791][ C1] kobject_uevent+0x14/0x20 [ 28.007366][ C1] driver_register+0xb4/0x130 [ 28.007999][ C1] usb_register_driver+0x80/0x150 [ 28.008632][ C1] udl_driver_init+0x24/0x30 [ 28.009144][ C1] do_one_initcall+0x50/0x1b0 [ 28.009715][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.010286][ C1] kernel_init+0x14/0x118 [ 28.010755][ C1] ret_from_fork+0x10/0x34 [ 28.011513][ C1] ---[ end trace dc83b52b5dca1353 ]--- [ 28.012403][ C1] hrtimer: interrupt took 136773392 ns [ 28.014507][ T1] usbcore: registered new interface driver udl [ 28.121277][ C1] ------------[ cut here ]------------ [ 28.122049][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.123300][ C1] Modules linked in: [ 28.124163][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.125374][ C1] Hardware name: linux,dummy-virt (DT) [ 28.126014][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.126822][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.127545][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.128298][ C1] sp : ffff80001000be30 [ 28.128843][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.130184][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.131422][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.132379][ C1] x23: 0000000000000080 x22: 0000000654a94860 [ 28.133308][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.134297][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 28.135458][ C1] x17: 000000009dec8301 x16: 000000003004104c [ 28.136647][ C1] x15: 0000ae1c6448ea52 x14: 0000000000000380 [ 28.137767][ C1] x13: 0000000000000001 x12: 0000000000000000 [ 28.138890][ C1] x11: 0000000000000003 x10: 0000000000000380 [ 28.139985][ C1] x9 : 0000000008b688e6 x8 : 0000000654879150 [ 28.140954][ C1] x7 : 7fffffffffffffff x6 : 0000000654879150 [ 28.141932][ C1] x5 : 0000000654879150 x4 : f6ff000003b55498 [ 28.143136][ C1] x3 : 000000065585dd50 x2 : 0000000654879150 [ 28.144388][ C1] x1 : 000000065585dd50 x0 : 0000000000000009 [ 28.145545][ C1] Call trace: [ 28.146124][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.147157][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.148019][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.148716][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.149478][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.150192][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.151086][ C1] gic_handle_irq+0x50/0xd0 [ 28.151944][ C1] el1_irq+0xb4/0x180 [ 28.152696][ C1] unwind_frame+0x8c/0x180 [ 28.153603][ C1] stack_trace_save+0x50/0x80 [ 28.154435][ C1] kasan_save_stack+0x28/0x60 [ 28.155243][ C1] __kasan_slab_alloc+0xd8/0x120 [ 28.156022][ C1] kmem_cache_alloc+0x1bc/0x33c [ 28.156791][ C1] __kernfs_new_node+0x68/0x210 [ 28.157678][ C1] kernfs_new_node+0x48/0x70 [ 28.158477][ C1] __kernfs_create_file+0x30/0x160 [ 28.159342][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 28.160093][ C1] sysfs_create_file_ns+0x80/0xbc [ 28.160857][ C1] driver_create_file+0x20/0x34 [ 28.161864][ C1] bus_add_driver+0x188/0x20c [ 28.162747][ C1] driver_register+0x78/0x130 [ 28.163532][ C1] i2c_register_driver+0x50/0xd0 [ 28.164350][ C1] lt9611_driver_init+0x1c/0x28 [ 28.165130][ C1] do_one_initcall+0x50/0x1b0 [ 28.165926][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.166739][ C1] kernel_init+0x14/0x118 [ 28.170827][ C1] ret_from_fork+0x10/0x34 [ 28.171662][ C1] ---[ end trace dc83b52b5dca1354 ]--- [ 28.173221][ C1] ------------[ cut here ]------------ [ 28.173961][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.175227][ C1] Modules linked in: [ 28.175997][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.177363][ C1] Hardware name: linux,dummy-virt (DT) [ 28.178258][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.179231][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.180034][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.180939][ C1] sp : ffff80001000be30 [ 28.182415][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.183519][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.184735][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.185858][ C1] x23: 0000000000000080 x22: 0000000657bf76f0 [ 28.186859][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.187870][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 28.188753][ C1] x17: 000000009dec8301 x16: 000000003004104c [ 28.189373][ C1] x15: 00003ed9e8ff5722 x14: 0000000000000141 [ 28.190159][ C1] x13: 0000000000000001 x12: 0000000000000032 [ 28.191670][ C1] x11: 0000000000000003 x10: 0000000000000141 [ 28.192804][ C1] x9 : 00000000089c81b3 x8 : 0000000657827550 [ 28.193945][ C1] x7 : 7fffffffffffffff x6 : 0000000657827550 [ 28.194985][ C1] x5 : 0000000657827550 x4 : f6ff000003b55498 [ 28.196073][ C1] x3 : 000000065880c150 x2 : 0000000657827550 [ 28.196789][ C1] x1 : 000000065880c150 x0 : 0000000000000003 [ 28.197426][ C1] Call trace: [ 28.197749][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.198246][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.198712][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.199140][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.199634][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.200361][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.201554][ C1] gic_handle_irq+0x50/0xd0 [ 28.202225][ C1] el1_irq+0xb4/0x180 [ 28.202880][ C1] unwind_frame+0x8c/0x180 [ 28.203586][ C1] stack_trace_save+0x50/0x80 [ 28.204309][ C1] kasan_save_stack+0x28/0x60 [ 28.205073][ C1] __kasan_slab_alloc+0xd8/0x120 [ 28.205856][ C1] kmem_cache_alloc+0x1bc/0x33c [ 28.206666][ C1] __kernfs_new_node+0x68/0x210 [ 28.207379][ C1] kernfs_new_node+0x48/0x70 [ 28.208147][ C1] __kernfs_create_file+0x30/0x160 [ 28.208892][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 28.209636][ C1] sysfs_create_file_ns+0x80/0xbc [ 28.210332][ C1] driver_create_file+0x20/0x34 [ 28.211537][ C1] bus_add_driver+0x188/0x20c [ 28.212249][ C1] driver_register+0x78/0x130 [ 28.212983][ C1] i2c_register_driver+0x50/0xd0 [ 28.213749][ C1] lt9611_driver_init+0x1c/0x28 [ 28.214425][ C1] do_one_initcall+0x50/0x1b0 [ 28.215116][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.215973][ C1] kernel_init+0x14/0x118 [ 28.216732][ C1] ret_from_fork+0x10/0x34 [ 28.217451][ C1] ---[ end trace dc83b52b5dca1355 ]--- [ 28.218991][ C1] ------------[ cut here ]------------ [ 28.219604][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.228824][ C1] Modules linked in: [ 28.229678][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.231267][ C1] Hardware name: linux,dummy-virt (DT) [ 28.231993][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.232899][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.233708][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.234541][ C1] sp : ffff80001000be30 [ 28.235159][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.236309][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.237431][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.238560][ C1] x23: 0000000000000080 x22: 000000065a77b8f0 [ 28.239621][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.240571][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 28.241968][ C1] x17: 000000009dec8301 x16: 000000003004104c [ 28.243043][ C1] x15: 000046cc0fc5dd00 x14: 000000000000002d [ 28.244163][ C1] x13: 0000000000000001 x12: 000000000000002c [ 28.245302][ C1] x11: 0000000000000003 x10: 000000000000002d [ 28.246398][ C1] x9 : 00000000088fcc18 x8 : 000000065a7d5950 [ 28.247510][ C1] x7 : 7fffffffffffffff x6 : 000000065a7d5950 [ 28.248653][ C1] x5 : 000000065a7d5950 x4 : f6ff000003b55498 [ 28.249729][ C1] x3 : 000000065b7ba550 x2 : 000000065a7d5950 [ 28.250658][ C1] x1 : 000000065b7ba550 x0 : 0000000000000003 [ 28.252105][ C1] Call trace: [ 28.252618][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.253318][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.254029][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.254778][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.255586][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.256387][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.257124][ C1] gic_handle_irq+0x50/0xd0 [ 28.257805][ C1] el1_irq+0xb4/0x180 [ 28.258462][ C1] unwind_frame+0x8c/0x180 [ 28.259120][ C1] stack_trace_save+0x50/0x80 [ 28.259783][ C1] kasan_save_stack+0x28/0x60 [ 28.260471][ C1] __kasan_slab_alloc+0xd8/0x120 [ 28.261676][ C1] kmem_cache_alloc+0x1bc/0x33c [ 28.262363][ C1] __kernfs_new_node+0x68/0x210 [ 28.263071][ C1] kernfs_new_node+0x48/0x70 [ 28.263875][ C1] __kernfs_create_file+0x30/0x160 [ 28.264565][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 28.265253][ C1] sysfs_create_file_ns+0x80/0xbc [ 28.266038][ C1] driver_create_file+0x20/0x34 [ 28.266848][ C1] bus_add_driver+0x188/0x20c [ 28.267578][ C1] driver_register+0x78/0x130 [ 28.268325][ C1] i2c_register_driver+0x50/0xd0 [ 28.269134][ C1] lt9611_driver_init+0x1c/0x28 [ 28.269912][ C1] do_one_initcall+0x50/0x1b0 [ 28.270641][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.272008][ C1] kernel_init+0x14/0x118 [ 28.272808][ C1] ret_from_fork+0x10/0x34 [ 28.273591][ C1] ---[ end trace dc83b52b5dca1356 ]--- [ 28.370006][ T16] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 28.375314][ C1] ------------[ cut here ]------------ [ 28.377651][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.380177][ C1] Modules linked in: [ 28.382079][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.387036][ C1] Hardware name: linux,dummy-virt (DT) [ 28.389204][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.390197][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.393031][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.395009][ C1] sp : ffff80001000be30 [ 28.397223][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.400569][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.404689][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.409258][ C1] x23: 0000000000000080 x22: 0000000663cc5400 [ 28.412717][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.416733][ C1] x19: f6ff000003b55498 x18: 000000000000000e [ 28.421201][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.422266][ C1] x15: 0000000000000002 x14: 0000000000000000 [ 28.423435][ C1] x13: ffff8000126b7000 x12: ffff80001292c000 [ 28.424473][ C1] x11: 0000000000000000 x10: 0000000000000001 [ 28.425405][ C1] x9 : 0000000000000800 x8 : 00000006636e0550 [ 28.426459][ C1] x7 : 7fffffffffffffff x6 : 00000006636e0550 [ 28.427465][ C1] x5 : 00000006636e0550 x4 : f6ff000003b55498 [ 28.428753][ C1] x3 : 00000006646c5150 x2 : 00000006636e0550 [ 28.429777][ C1] x1 : 00000006646c5150 x0 : 0000000000000009 [ 28.431102][ C1] Call trace: [ 28.433508][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.438860][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.444390][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.446854][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.448129][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.450416][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.453866][ C1] gic_handle_irq+0x50/0xd0 [ 28.457323][ C1] el1_irq+0xb4/0x180 [ 28.457921][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.458564][ C1] __schedule+0x2dc/0x794 [ 28.459188][ C1] schedule+0x70/0x10c [ 28.459738][ C1] schedule_timeout+0xc0/0xf0 [ 28.460405][ C1] wait_for_completion+0x80/0x120 [ 28.461693][ C1] cpuhp_issue_call+0xdc/0x1bc [ 28.462525][ C1] __cpuhp_setup_state_cpuslocked+0x114/0x300 [ 28.463445][ C1] __cpuhp_setup_state+0x50/0x74 [ 28.464296][ C1] cacheinfo_sysfs_init+0x34/0x40 [ 28.465098][ C1] do_one_initcall+0x50/0x1b0 [ 28.465833][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.466660][ C1] kernel_init+0x14/0x118 [ 28.467341][ C1] ret_from_fork+0x10/0x34 [ 28.468130][ C1] ---[ end trace dc83b52b5dca1357 ]--- [ 28.479585][ C1] ------------[ cut here ]------------ [ 28.480430][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.484863][ C1] Modules linked in: [ 28.485591][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.486839][ C1] Hardware name: linux,dummy-virt (DT) [ 28.487604][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.488571][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.489524][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.490563][ C1] sp : ffff80001000be30 [ 28.491593][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.492757][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.493981][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.495186][ C1] x23: 0000000000000080 x22: 000000066a039a50 [ 28.496358][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.497493][ C1] x19: f6ff000003b55498 x18: 000000000000000e [ 28.498387][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.499348][ C1] x15: 0000415a257ced84 x14: 000000000000036a [ 28.500279][ C1] x13: 0000000000000001 x12: 0000000000000030 [ 28.501771][ C1] x11: 0000000000000002 x10: 000000000000036a [ 28.502414][ C1] x9 : 0000000005cf2fdd x8 : 000000066963cd50 [ 28.503047][ C1] x7 : 7fffffffffffffff x6 : 000000066963cd50 [ 28.503619][ C1] x5 : 000000066963cd50 x4 : f6ff000003b55498 [ 28.504279][ C1] x3 : 000000066a621950 x2 : 000000066963cd50 [ 28.504893][ C1] x1 : 000000066a621950 x0 : 0000000000000006 [ 28.505488][ C1] Call trace: [ 28.505797][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.506268][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.506714][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.507159][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.507647][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.508248][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.508837][ C1] gic_handle_irq+0x50/0xd0 [ 28.509448][ C1] el1_irq+0xb4/0x180 [ 28.510088][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.510764][ C1] __schedule+0x2dc/0x794 [ 28.511761][ C1] schedule+0x70/0x10c [ 28.512383][ C1] schedule_timeout+0xc0/0xf0 [ 28.513092][ C1] wait_for_completion+0x80/0x120 [ 28.513772][ C1] cpuhp_issue_call+0xdc/0x1bc [ 28.514573][ C1] __cpuhp_setup_state_cpuslocked+0x114/0x300 [ 28.515444][ C1] __cpuhp_setup_state+0x50/0x74 [ 28.516236][ C1] cacheinfo_sysfs_init+0x34/0x40 [ 28.517045][ C1] do_one_initcall+0x50/0x1b0 [ 28.517852][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.518645][ C1] kernel_init+0x14/0x118 [ 28.519298][ C1] ret_from_fork+0x10/0x34 [ 28.519923][ C1] ---[ end trace dc83b52b5dca1358 ]--- [ 28.522520][ C1] ------------[ cut here ]------------ [ 28.523053][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.523890][ C1] Modules linked in: [ 28.524466][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.525613][ C1] Hardware name: linux,dummy-virt (DT) [ 28.526273][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.527273][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.528161][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.528986][ C1] sp : ffff80001000be30 [ 28.529624][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.530628][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.532216][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.533267][ C1] x23: 0000000000000080 x22: 000000066c7d21d0 [ 28.534305][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.535328][ C1] x19: f6ff000003b55498 x18: 000000000000000e [ 28.536250][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 28.537444][ C1] x15: 00004c7abae3f181 x14: 0000000000000363 [ 28.538473][ C1] x13: 0000000000000001 x12: 0000000000000029 [ 28.539515][ C1] x11: 0000000000000002 x10: 0000000000000363 [ 28.540475][ C1] x9 : 0000000005cf02f2 x8 : 000000066c5eb150 [ 28.541988][ C1] x7 : 7fffffffffffffff x6 : 000000066c5eb150 [ 28.543191][ C1] x5 : 000000066c5eb150 x4 : f6ff000003b55498 [ 28.546253][ C1] x3 : 000000066d5cfd50 x2 : 000000066c5eb150 [ 28.547455][ C1] x1 : 000000066d5cfd50 x0 : 0000000000000003 [ 28.549135][ C1] Call trace: [ 28.550451][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.551929][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.552791][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.553528][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.554360][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.555168][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.555951][ C1] gic_handle_irq+0x50/0xd0 [ 28.556676][ C1] el1_irq+0xb4/0x180 [ 28.557338][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.558114][ C1] __schedule+0x2dc/0x794 [ 28.559085][ C1] schedule+0x70/0x10c [ 28.559781][ C1] schedule_timeout+0xc0/0xf0 [ 28.560530][ C1] wait_for_completion+0x80/0x120 [ 28.561776][ C1] cpuhp_issue_call+0xdc/0x1bc [ 28.562516][ C1] __cpuhp_setup_state_cpuslocked+0x114/0x300 [ 28.563346][ C1] __cpuhp_setup_state+0x50/0x74 [ 28.564157][ C1] cacheinfo_sysfs_init+0x34/0x40 [ 28.564861][ C1] do_one_initcall+0x50/0x1b0 [ 28.565559][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.566314][ C1] kernel_init+0x14/0x118 [ 28.567007][ C1] ret_from_fork+0x10/0x34 [ 28.567768][ C1] ---[ end trace dc83b52b5dca1359 ]--- [ 28.670100][ C1] ------------[ cut here ]------------ [ 28.670857][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.680473][ C1] Modules linked in: [ 28.682009][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.683263][ C1] Hardware name: linux,dummy-virt (DT) [ 28.684055][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.685125][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.685966][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.686832][ C1] sp : ffff80001000be30 [ 28.687501][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.688829][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.690062][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.691588][ C1] x23: 0000000000000080 x22: 00000006755f1b20 [ 28.692684][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.693734][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 28.695963][ C1] x17: 000000000000003f x16: 000000000000000a [ 28.698244][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 28.700365][ C1] x13: 0000293405b9b960 x12: 00a4d2d1e12cbc40 [ 28.702417][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 28.703886][ C1] x9 : 0000000000000800 x8 : 00000006754f5d50 [ 28.704965][ C1] x7 : 7fffffffffffffff x6 : 00000006754f5d50 [ 28.706061][ C1] x5 : 00000006754f5d50 x4 : f6ff000003b55498 [ 28.707368][ C1] x3 : 00000006764da950 x2 : 00000006754f5d50 [ 28.709576][ C1] x1 : 00000006764da950 x0 : 0000000000000009 [ 28.710878][ C1] Call trace: [ 28.711543][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.712357][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.713122][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.713859][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.714665][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.715544][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.716312][ C1] gic_handle_irq+0x50/0xd0 [ 28.717056][ C1] el1_irq+0xb4/0x180 [ 28.717771][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.718583][ C1] blk_throtl_init+0x108/0x18c [ 28.720785][ C1] blkcg_init_queue+0x94/0x170 [ 28.722305][ C1] blk_alloc_queue+0x1bc/0x250 [ 28.723073][ C1] brd_alloc+0x68/0x150 [ 28.723778][ C1] brd_init+0xd8/0x214 [ 28.724496][ C1] do_one_initcall+0x50/0x1b0 [ 28.725256][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.726082][ C1] kernel_init+0x14/0x118 [ 28.727311][ C1] ret_from_fork+0x10/0x34 [ 28.728110][ C1] ---[ end trace dc83b52b5dca135a ]--- [ 28.729426][ C1] ------------[ cut here ]------------ [ 28.730110][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.731685][ C1] Modules linked in: [ 28.732479][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.734081][ C1] Hardware name: linux,dummy-virt (DT) [ 28.734862][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.735746][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.736608][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.737376][ C1] sp : ffff80001000be30 [ 28.737966][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.739036][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.740035][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.741311][ C1] x23: 0000000000000080 x22: 0000000678e85cb0 [ 28.742555][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.744332][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 28.745421][ C1] x17: 000000000000003f x16: 000000000000000a [ 28.746482][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 28.748271][ C1] x13: 000037f6125bb1e0 x12: 00dfdb017e7911ff [ 28.750306][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 28.751883][ C1] x9 : 0000000000000400 x8 : 00000006784a4150 [ 28.753947][ C1] x7 : 7fffffffffffffff x6 : 00000006784a4150 [ 28.755252][ C1] x5 : 00000006784a4150 x4 : f6ff000003b55498 [ 28.756923][ C1] x3 : 0000000679488d50 x2 : 00000006784a4150 [ 28.760280][ C1] x1 : 0000000679488d50 x0 : 0000000000000003 [ 28.761816][ C1] Call trace: [ 28.762383][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.763183][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.764008][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.764817][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.765624][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.766420][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.767431][ C1] gic_handle_irq+0x50/0xd0 [ 28.768251][ C1] el1_irq+0xb4/0x180 [ 28.768947][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.769879][ C1] blk_throtl_init+0x108/0x18c [ 28.770982][ C1] blkcg_init_queue+0x94/0x170 [ 28.771781][ C1] blk_alloc_queue+0x1bc/0x250 [ 28.772882][ C1] brd_alloc+0x68/0x150 [ 28.774190][ C1] brd_init+0xd8/0x214 [ 28.774881][ C1] do_one_initcall+0x50/0x1b0 [ 28.775686][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.776807][ C1] kernel_init+0x14/0x118 [ 28.777754][ C1] ret_from_fork+0x10/0x34 [ 28.778471][ C1] ---[ end trace dc83b52b5dca135b ]--- [ 28.779811][ C1] ------------[ cut here ]------------ [ 28.780594][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.782133][ C1] Modules linked in: [ 28.782806][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.784845][ C1] Hardware name: linux,dummy-virt (DT) [ 28.785672][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.786599][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.788658][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.789819][ C1] sp : ffff80001000be30 [ 28.790370][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.791720][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.792782][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.793774][ C1] x23: 0000000000000080 x22: 000000067be98c60 [ 28.794843][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.795907][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 28.797010][ C1] x17: 000000000000003f x16: 000000000000000a [ 28.799557][ C1] x15: 00005716293c9ec6 x14: 000000000000004b [ 28.802604][ C1] x13: 0000000000000001 x12: 0000000000000023 [ 28.803897][ C1] x11: 0000000000000001 x10: 000000000000004b [ 28.805303][ C1] x9 : 0000000002db1fe6 x8 : 000000067b452550 [ 28.806326][ C1] x7 : 7fffffffffffffff x6 : 000000067b452550 [ 28.807358][ C1] x5 : 000000067b452550 x4 : f6ff000003b55498 [ 28.808488][ C1] x3 : 000000067c437150 x2 : 000000067b452550 [ 28.809521][ C1] x1 : 000000067c437150 x0 : 0000000000000003 [ 28.810546][ C1] Call trace: [ 28.811367][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.812204][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.813047][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.813852][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.814685][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.815507][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.816332][ C1] gic_handle_irq+0x50/0xd0 [ 28.817031][ C1] el1_irq+0xb4/0x180 [ 28.817813][ C1] _raw_spin_unlock_irq+0x14/0x50 [ 28.818530][ C1] blk_throtl_init+0x108/0x18c [ 28.819221][ C1] blkcg_init_queue+0x94/0x170 [ 28.819947][ C1] blk_alloc_queue+0x1bc/0x250 [ 28.821907][ C1] brd_alloc+0x68/0x150 [ 28.824061][ C1] brd_init+0xd8/0x214 [ 28.824741][ C1] do_one_initcall+0x50/0x1b0 [ 28.825449][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.826787][ C1] kernel_init+0x14/0x118 [ 28.827880][ C1] ret_from_fork+0x10/0x34 [ 28.828593][ C1] ---[ end trace dc83b52b5dca135c ]--- [ 28.930818][ C1] ------------[ cut here ]------------ [ 28.931978][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.935750][ C1] Modules linked in: [ 28.936598][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.937903][ C1] Hardware name: linux,dummy-virt (DT) [ 28.938603][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.940486][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.944565][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.947456][ C1] sp : ffff80001000be30 [ 28.949417][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 28.953119][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 28.954263][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 28.955626][ C1] x23: 0000000000000080 x22: 0000000684e90e20 [ 28.956838][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 28.958323][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 28.959337][ C1] x17: 000000000000003f x16: 000000000000000a [ 28.960369][ C1] x15: 0000000000000002 x14: 0000000000000000 [ 28.962670][ C1] x13: 00005fa03366ac00 x12: 017e83f45cc5a400 [ 28.964553][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 28.966618][ C1] x9 : 0000000000000400 x8 : 000000068435d150 [ 28.967726][ C1] x7 : 7fffffffffffffff x6 : 000000068435d150 [ 28.970046][ C1] x5 : 000000068435d150 x4 : f6ff000003b55498 [ 28.971806][ C1] x3 : 0000000685341d50 x2 : 000000068435d150 [ 28.973388][ C1] x1 : 0000000685341d50 x0 : 0000000000000009 [ 28.976324][ C1] Call trace: [ 28.976902][ C1] vkms_vblank_simulate+0x120/0x130 [ 28.977716][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 28.978550][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 28.979303][ C1] arch_timer_handler_phys+0x38/0x50 [ 28.980138][ C1] handle_percpu_devid_irq+0x84/0x150 [ 28.981632][ C1] __handle_domain_irq+0x7c/0xe0 [ 28.982375][ C1] gic_handle_irq+0x50/0xd0 [ 28.983060][ C1] el1_irq+0xb4/0x180 [ 28.983702][ C1] wbt_enable_default+0x24/0x80 [ 28.984428][ C1] __device_add_disk+0x328/0x490 [ 28.985131][ C1] device_add_disk+0x14/0x20 [ 28.985854][ C1] brd_init+0x168/0x214 [ 28.986550][ C1] do_one_initcall+0x50/0x1b0 [ 28.987278][ C1] kernel_init_freeable+0x1d8/0x240 [ 28.988076][ C1] kernel_init+0x14/0x118 [ 28.988864][ C1] ret_from_fork+0x10/0x34 [ 28.989587][ C1] ---[ end trace dc83b52b5dca135d ]--- [ 28.991084][ C1] ------------[ cut here ]------------ [ 28.991727][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 28.992934][ C1] Modules linked in: [ 28.993604][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 28.994747][ C1] Hardware name: linux,dummy-virt (DT) [ 28.995472][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 28.996391][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 28.997271][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 28.998134][ C1] sp : ffff80001000be30 [ 28.998819][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.000196][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.001964][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.003214][ C1] x23: 0000000000000080 x22: 00000006887ed9b0 [ 29.004254][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.005342][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.006482][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.007616][ C1] x15: 000052019c016cf2 x14: 000000000000027e [ 29.008834][ C1] x13: 0000000000000001 x12: 0000000000000025 [ 29.009986][ C1] x11: 0000000000000001 x10: 000000000000027e [ 29.011661][ C1] x9 : 0000000002e3edfb x8 : 00000006882f0150 [ 29.012881][ C1] x7 : 7fffffffffffffff x6 : 00000006882f0150 [ 29.013891][ C1] x5 : 00000006882f0150 x4 : f6ff000003b55498 [ 29.014899][ C1] x3 : 00000006892d4d50 x2 : 00000006882f0150 [ 29.015979][ C1] x1 : 00000006892d4d50 x0 : 0000000000000004 [ 29.017119][ C1] Call trace: [ 29.017716][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.018559][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.019320][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.020095][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.021089][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.021924][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.022711][ C1] gic_handle_irq+0x50/0xd0 [ 29.023453][ C1] el1_irq+0xb4/0x180 [ 29.024205][ C1] wbt_enable_default+0x24/0x80 [ 29.024905][ C1] __device_add_disk+0x328/0x490 [ 29.025691][ C1] device_add_disk+0x14/0x20 [ 29.026449][ C1] brd_init+0x168/0x214 [ 29.027295][ C1] do_one_initcall+0x50/0x1b0 [ 29.028107][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.028829][ C1] kernel_init+0x14/0x118 [ 29.029517][ C1] ret_from_fork+0x10/0x34 [ 29.030229][ C1] ---[ end trace dc83b52b5dca135e ]--- [ 29.031772][ C1] ------------[ cut here ]------------ [ 29.032512][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.033729][ C1] Modules linked in: [ 29.034406][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.035651][ C1] Hardware name: linux,dummy-virt (DT) [ 29.036385][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.037350][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.038156][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.038928][ C1] sp : ffff80001000be30 [ 29.039536][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.040725][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.043692][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.044735][ C1] x23: 0000000000000080 x22: 000000068aee4160 [ 29.045790][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.046828][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.047957][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.049111][ C1] x15: 00004f79dfe28c3e x14: 0000000000000248 [ 29.050218][ C1] x13: 0000000000000001 x12: 0000000000000027 [ 29.051933][ C1] x11: 0000000000000001 x10: 0000000000000248 [ 29.053074][ C1] x9 : 0000000002e31610 x8 : 000000068a2b9950 [ 29.054070][ C1] x7 : 7fffffffffffffff x6 : 000000068a2b9950 [ 29.055080][ C1] x5 : 000000068a2b9950 x4 : f6ff000003b55498 [ 29.056225][ C1] x3 : 000000068b29e550 x2 : 000000068a2b9950 [ 29.057265][ C1] x1 : 000000068b29e550 x0 : 0000000000000002 [ 29.058338][ C1] Call trace: [ 29.058932][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.059738][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.060544][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.061778][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.062607][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.063432][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.064191][ C1] gic_handle_irq+0x50/0xd0 [ 29.064882][ C1] el1_irq+0xb4/0x180 [ 29.065533][ C1] wbt_enable_default+0x24/0x80 [ 29.066333][ C1] __device_add_disk+0x328/0x490 [ 29.067173][ C1] device_add_disk+0x14/0x20 [ 29.067920][ C1] brd_init+0x168/0x214 [ 29.068617][ C1] do_one_initcall+0x50/0x1b0 [ 29.069346][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.070091][ C1] kernel_init+0x14/0x118 [ 29.071277][ C1] ret_from_fork+0x10/0x34 [ 29.072062][ C1] ---[ end trace dc83b52b5dca135f ]--- [ 29.173247][ C1] ------------[ cut here ]------------ [ 29.174156][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.175416][ C1] Modules linked in: [ 29.176238][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.177657][ C1] Hardware name: linux,dummy-virt (DT) [ 29.178436][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.179436][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.180376][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.181187][ C1] sp : ffff80001000be30 [ 29.181827][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.182980][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.184211][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.185398][ C1] x23: 0000000000000080 x22: 00000006936041b0 [ 29.186932][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.188149][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.189307][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.190409][ C1] x15: 00003e6e76a568de x14: 0000000000000260 [ 29.191547][ C1] x13: 0000000000000001 x12: 0000000000000040 [ 29.195336][ C1] x11: faff000003400260 x10: faff000003400262 [ 29.196427][ C1] x9 : ffff8000127cbe78 x8 : 00000006931c4550 [ 29.197468][ C1] x7 : 7fffffffffffffff x6 : 00000006931c4550 [ 29.199995][ C1] x5 : 00000006931c4550 x4 : f6ff000003b55498 [ 29.201932][ C1] x3 : 00000006941a9150 x2 : 00000006931c4550 [ 29.203029][ C1] x1 : 00000006941a9150 x0 : 0000000000000009 [ 29.204232][ C1] Call trace: [ 29.204715][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.205411][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.206110][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.206565][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.207076][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.207568][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.208100][ C1] gic_handle_irq+0x50/0xd0 [ 29.208700][ C1] el1_irq+0xb4/0x180 [ 29.209377][ C1] __insert_inode_hash+0x0/0xcc [ 29.210115][ C1] __device_add_disk+0x428/0x490 [ 29.210867][ C1] device_add_disk+0x14/0x20 [ 29.211674][ C1] brd_init+0x168/0x214 [ 29.212460][ C1] do_one_initcall+0x50/0x1b0 [ 29.213281][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.214200][ C1] kernel_init+0x14/0x118 [ 29.214866][ C1] ret_from_fork+0x10/0x34 [ 29.215812][ C1] ---[ end trace dc83b52b5dca1360 ]--- [ 29.217069][ C1] ------------[ cut here ]------------ [ 29.217768][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.219038][ C1] Modules linked in: [ 29.219770][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.223234][ C1] Hardware name: linux,dummy-virt (DT) [ 29.224530][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.225504][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.226395][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.227225][ C1] sp : ffff80001000be30 [ 29.227912][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.229059][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.230228][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.237217][ C1] x23: 0000000000000080 x22: 0000000695fd4be0 [ 29.238442][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.239663][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.243108][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.244304][ C1] x15: 00007d1c24c7a264 x14: 00000000000002b3 [ 29.246709][ C1] x13: 0000000000000001 x12: 0000000000000012 [ 29.248122][ C1] x11: 0000000000000001 x10: 00000000000002b3 [ 29.249234][ C1] x9 : 0000000002e4c0ae x8 : 000000069518dd50 [ 29.250231][ C1] x7 : 7fffffffffffffff x6 : 000000069518dd50 [ 29.252860][ C1] x5 : 000000069518dd50 x4 : f6ff000003b55498 [ 29.254000][ C1] x3 : 0000000696172950 x2 : 000000069518dd50 [ 29.255270][ C1] x1 : 0000000696172950 x0 : 0000000000000002 [ 29.256415][ C1] Call trace: [ 29.257072][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.257900][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.258747][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.259744][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.260567][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.262070][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.262871][ C1] gic_handle_irq+0x50/0xd0 [ 29.263557][ C1] el1_irq+0xb4/0x180 [ 29.264197][ C1] __insert_inode_hash+0x0/0xcc [ 29.264919][ C1] __device_add_disk+0x428/0x490 [ 29.265665][ C1] device_add_disk+0x14/0x20 [ 29.266379][ C1] brd_init+0x168/0x214 [ 29.267119][ C1] do_one_initcall+0x50/0x1b0 [ 29.267919][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.268898][ C1] kernel_init+0x14/0x118 [ 29.269685][ C1] ret_from_fork+0x10/0x34 [ 29.270865][ C1] ---[ end trace dc83b52b5dca1361 ]--- [ 29.272246][ C1] ------------[ cut here ]------------ [ 29.272909][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.274605][ C1] Modules linked in: [ 29.275265][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.276571][ C1] Hardware name: linux,dummy-virt (DT) [ 29.277239][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.278121][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.278856][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.279595][ C1] sp : ffff80001000be30 [ 29.280230][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.281751][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.282792][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.283825][ C1] x23: 0000000000000080 x22: 0000000699471400 [ 29.284882][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.285945][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.286972][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.288064][ C1] x15: 00007d1c24c7a264 x14: 00000000000002b3 [ 29.289107][ C1] x13: 0000000000000001 x12: 0000000000000012 [ 29.290149][ C1] x11: 0000000000000001 x10: 00000000000002b3 [ 29.291775][ C1] x9 : ffff800012a0e000 x8 : 0000000699120d50 [ 29.292934][ C1] x7 : 7fffffffffffffff x6 : 0000000699120d50 [ 29.293990][ C1] x5 : 0000000699120d50 x4 : f6ff000003b55498 [ 29.295042][ C1] x3 : 000000069a105950 x2 : 0000000699120d50 [ 29.296173][ C1] x1 : 000000069a105950 x0 : 0000000000000004 [ 29.298765][ C1] Call trace: [ 29.299758][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.300748][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.301668][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.302338][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.303079][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.303791][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.304520][ C1] gic_handle_irq+0x50/0xd0 [ 29.305185][ C1] el1_irq+0xb4/0x180 [ 29.305815][ C1] __insert_inode_hash+0x0/0xcc [ 29.307058][ C1] __device_add_disk+0x428/0x490 [ 29.307785][ C1] device_add_disk+0x14/0x20 [ 29.308518][ C1] brd_init+0x168/0x214 [ 29.309365][ C1] do_one_initcall+0x50/0x1b0 [ 29.310139][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.311535][ C1] kernel_init+0x14/0x118 [ 29.312310][ C1] ret_from_fork+0x10/0x34 [ 29.313180][ C1] ---[ end trace dc83b52b5dca1362 ]--- [ 29.414570][ C1] ------------[ cut here ]------------ [ 29.415314][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.416540][ C1] Modules linked in: [ 29.417227][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.418446][ C1] Hardware name: linux,dummy-virt (DT) [ 29.419170][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.420111][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.421229][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.422007][ C1] sp : ffff80001000be30 [ 29.422622][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.423734][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.424785][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.425896][ C1] x23: 0000000000000080 x22: 00000006a1c297d0 [ 29.427667][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.428798][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 29.430113][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.431285][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 29.432323][ C1] x13: 0000000000078fcc x12: 0000000000000040 [ 29.433343][ C1] x11: faff000003400260 x10: faff000003400262 [ 29.434319][ C1] x9 : ffff8000127cbe78 x8 : 00000006a1046d50 [ 29.435286][ C1] x7 : 7fffffffffffffff x6 : 00000006a1046d50 [ 29.436339][ C1] x5 : 00000006a1046d50 x4 : f6ff000003b55498 [ 29.437356][ C1] x3 : 00000006a202b950 x2 : 00000006a1046d50 [ 29.438507][ C1] x1 : 00000006a202b950 x0 : 0000000000000008 [ 29.439580][ C1] Call trace: [ 29.440158][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.441457][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.442235][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.443024][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.443867][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.444638][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.445403][ C1] gic_handle_irq+0x50/0xd0 [ 29.446108][ C1] el1_irq+0xb4/0x180 [ 29.447234][ C1] arch_stack_walk+0x68/0x16c [ 29.448057][ C1] stack_trace_save+0x50/0x80 [ 29.448805][ C1] kasan_save_stack+0x28/0x60 [ 29.449516][ C1] __kasan_slab_alloc+0xd8/0x120 [ 29.450315][ C1] kmem_cache_alloc+0x1bc/0x33c [ 29.451541][ C1] __kernfs_new_node+0x68/0x210 [ 29.452357][ C1] kernfs_new_node+0x48/0x70 [ 29.453076][ C1] __kernfs_create_file+0x30/0x160 [ 29.453888][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.454578][ C1] internal_create_group+0x104/0x3cc [ 29.455310][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.456110][ C1] sysfs_create_groups+0x20/0x34 [ 29.456835][ C1] device_add+0x270/0x7d0 [ 29.457579][ C1] device_create_groups_vargs+0x108/0x174 [ 29.458382][ C1] device_create+0x5c/0x8c [ 29.459086][ C1] bdi_register_va+0x80/0x214 [ 29.459872][ C1] bdi_register+0x58/0x80 [ 29.460592][ C1] __device_add_disk+0x40c/0x490 [ 29.461457][ C1] device_add_disk+0x14/0x20 [ 29.462192][ C1] brd_init+0x168/0x214 [ 29.462905][ C1] do_one_initcall+0x50/0x1b0 [ 29.463642][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.464422][ C1] kernel_init+0x14/0x118 [ 29.465166][ C1] ret_from_fork+0x10/0x34 [ 29.465906][ C1] ---[ end trace dc83b52b5dca1363 ]--- [ 29.467178][ C1] ------------[ cut here ]------------ [ 29.467901][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.469098][ C1] Modules linked in: [ 29.469766][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.474326][ C1] Hardware name: linux,dummy-virt (DT) [ 29.475018][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.475977][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.476809][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.477594][ C1] sp : ffff80001000be30 [ 29.478272][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.479392][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.480518][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.482151][ C1] x23: 0000000000000080 x22: 00000006a4e59070 [ 29.483289][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.484262][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 29.485288][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.486286][ C1] x15: 00009e7e060fd936 x14: 0000000000000398 [ 29.487343][ C1] x13: 0000000000000001 x12: 0000000000000007 [ 29.488374][ C1] x11: 0000000000000001 x10: 0000000000000398 [ 29.489384][ C1] x9 : 0000000002e8572c x8 : 00000006a3ff5150 [ 29.490408][ C1] x7 : 7fffffffffffffff x6 : 00000006a3ff5150 [ 29.492017][ C1] x5 : 00000006a3ff5150 x4 : f6ff000003b55498 [ 29.493074][ C1] x3 : 00000006a4fd9d50 x2 : 00000006a3ff5150 [ 29.494143][ C1] x1 : 00000006a4fd9d50 x0 : 0000000000000003 [ 29.495175][ C1] Call trace: [ 29.495727][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.496563][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.497367][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.498144][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.498924][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.499720][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.500601][ C1] gic_handle_irq+0x50/0xd0 [ 29.501808][ C1] el1_irq+0xb4/0x180 [ 29.502488][ C1] arch_stack_walk+0x68/0x16c [ 29.503238][ C1] stack_trace_save+0x50/0x80 [ 29.503964][ C1] kasan_save_stack+0x28/0x60 [ 29.504649][ C1] __kasan_slab_alloc+0xd8/0x120 [ 29.505370][ C1] kmem_cache_alloc+0x1bc/0x33c [ 29.506152][ C1] __kernfs_new_node+0x68/0x210 [ 29.506916][ C1] kernfs_new_node+0x48/0x70 [ 29.507691][ C1] __kernfs_create_file+0x30/0x160 [ 29.508460][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.509279][ C1] internal_create_group+0x104/0x3cc [ 29.510093][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.511633][ C1] sysfs_create_groups+0x20/0x34 [ 29.512573][ C1] device_add+0x270/0x7d0 [ 29.513473][ C1] device_create_groups_vargs+0x108/0x174 [ 29.514347][ C1] device_create+0x5c/0x8c [ 29.515043][ C1] bdi_register_va+0x80/0x214 [ 29.515734][ C1] bdi_register+0x58/0x80 [ 29.516525][ C1] __device_add_disk+0x40c/0x490 [ 29.517435][ C1] device_add_disk+0x14/0x20 [ 29.518194][ C1] brd_init+0x168/0x214 [ 29.518974][ C1] do_one_initcall+0x50/0x1b0 [ 29.519806][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.520581][ C1] kernel_init+0x14/0x118 [ 29.521841][ C1] ret_from_fork+0x10/0x34 [ 29.522640][ C1] ---[ end trace dc83b52b5dca1364 ]--- [ 29.523701][ C1] ------------[ cut here ]------------ [ 29.524469][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.525764][ C1] Modules linked in: [ 29.526487][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.527768][ C1] Hardware name: linux,dummy-virt (DT) [ 29.528561][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.529590][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.530550][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.531982][ C1] sp : ffff80001000be30 [ 29.532631][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.533619][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.534606][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.535644][ C1] x23: 0000000000000080 x22: 00000006a843e5e0 [ 29.536785][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.537890][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 29.539052][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.540217][ C1] x15: 00009e7e060fd936 x14: 0000000000000398 [ 29.541977][ C1] x13: 0000000000000001 x12: 0000000000000007 [ 29.543120][ C1] x11: 0000000000000001 x10: 0000000000000398 [ 29.544158][ C1] x9 : ffff800012a0e000 x8 : 00000006a7f88150 [ 29.545135][ C1] x7 : 7fffffffffffffff x6 : 00000006a7f88150 [ 29.546203][ C1] x5 : 00000006a7f88150 x4 : f6ff000003b55498 [ 29.547223][ C1] x3 : 00000006a8f6cd50 x2 : 00000006a7f88150 [ 29.548356][ C1] x1 : 00000006a8f6cd50 x0 : 0000000000000004 [ 29.549440][ C1] Call trace: [ 29.549989][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.551303][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.552105][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.552837][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.553671][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.554435][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.555193][ C1] gic_handle_irq+0x50/0xd0 [ 29.555949][ C1] el1_irq+0xb4/0x180 [ 29.556609][ C1] arch_stack_walk+0x68/0x16c [ 29.557492][ C1] stack_trace_save+0x50/0x80 [ 29.558174][ C1] kasan_save_stack+0x28/0x60 [ 29.558894][ C1] __kasan_slab_alloc+0xd8/0x120 [ 29.559740][ C1] kmem_cache_alloc+0x1bc/0x33c [ 29.560588][ C1] __kernfs_new_node+0x68/0x210 [ 29.561978][ C1] kernfs_new_node+0x48/0x70 [ 29.562661][ C1] __kernfs_create_file+0x30/0x160 [ 29.563520][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.564399][ C1] internal_create_group+0x104/0x3cc [ 29.565180][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.565984][ C1] sysfs_create_groups+0x20/0x34 [ 29.566743][ C1] device_add+0x270/0x7d0 [ 29.567425][ C1] device_create_groups_vargs+0x108/0x174 [ 29.568402][ C1] device_create+0x5c/0x8c [ 29.569198][ C1] bdi_register_va+0x80/0x214 [ 29.569979][ C1] bdi_register+0x58/0x80 [ 29.571530][ C1] __device_add_disk+0x40c/0x490 [ 29.572398][ C1] device_add_disk+0x14/0x20 [ 29.573183][ C1] brd_init+0x168/0x214 [ 29.573953][ C1] do_one_initcall+0x50/0x1b0 [ 29.574630][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.575376][ C1] kernel_init+0x14/0x118 [ 29.576080][ C1] ret_from_fork+0x10/0x34 [ 29.576760][ C1] ---[ end trace dc83b52b5dca1365 ]--- [ 29.678275][ C1] ------------[ cut here ]------------ [ 29.680295][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.682251][ C1] Modules linked in: [ 29.683102][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.684796][ C1] Hardware name: linux,dummy-virt (DT) [ 29.686312][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.687577][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.688731][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.689605][ C1] sp : ffff80001000be30 [ 29.690187][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.692104][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.693430][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.694440][ C1] x23: 0000000000000080 x22: 00000006b17a36e0 [ 29.695473][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.696692][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.697884][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.698986][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 29.700214][ C1] x13: 0000000000078fcc x12: 0000000000000040 [ 29.701574][ C1] x11: faff000003400260 x10: faff000003400262 [ 29.702901][ C1] x9 : ffff8000127cbe78 x8 : 00000006b0e92d50 [ 29.704035][ C1] x7 : 7fffffffffffffff x6 : 00000006b0e92d50 [ 29.705026][ C1] x5 : 00000006b0e92d50 x4 : f6ff000003b55498 [ 29.706058][ C1] x3 : 00000006b1e77950 x2 : 00000006b0e92d50 [ 29.707114][ C1] x1 : 00000006b1e77950 x0 : 0000000000000009 [ 29.708318][ C1] Call trace: [ 29.708953][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.709858][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.710662][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.711367][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.712261][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.713061][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.713809][ C1] gic_handle_irq+0x50/0xd0 [ 29.714545][ C1] el1_irq+0xb4/0x180 [ 29.715185][ C1] stack_depot_save+0xa4/0x4bc [ 29.715940][ C1] kasan_save_stack+0x44/0x60 [ 29.716709][ C1] __kasan_slab_alloc+0xd8/0x120 [ 29.717473][ C1] kmem_cache_alloc+0x1bc/0x33c [ 29.718204][ C1] __kernfs_new_node+0x68/0x210 [ 29.718957][ C1] kernfs_new_node+0x48/0x70 [ 29.719724][ C1] __kernfs_create_file+0x30/0x160 [ 29.720499][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.721376][ C1] internal_create_group+0x104/0x3cc [ 29.722132][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.722982][ C1] sysfs_create_groups+0x20/0x34 [ 29.723801][ C1] device_add+0x288/0x7d0 [ 29.724574][ C1] __device_add_disk+0x144/0x490 [ 29.725319][ C1] device_add_disk+0x14/0x20 [ 29.726061][ C1] brd_init+0x168/0x214 [ 29.726882][ C1] do_one_initcall+0x50/0x1b0 [ 29.727730][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.728673][ C1] kernel_init+0x14/0x118 [ 29.729453][ C1] ret_from_fork+0x10/0x34 [ 29.730245][ C1] ---[ end trace dc83b52b5dca1366 ]--- [ 29.731716][ C1] ------------[ cut here ]------------ [ 29.732506][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.733770][ C1] Modules linked in: [ 29.734437][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.735663][ C1] Hardware name: linux,dummy-virt (DT) [ 29.736407][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.737286][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.738054][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.738801][ C1] sp : ffff80001000be30 [ 29.739396][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.740468][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.741826][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.742806][ C1] x23: 0000000000000080 x22: 00000006b4a96660 [ 29.744168][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.745202][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.746220][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.747277][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 29.748365][ C1] x13: 00001c5f0ab89ab0 x12: 0071800d9c44b4a0 [ 29.749425][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 29.750516][ C1] x9 : 0000000000000800 x8 : 00000006b3e41150 [ 29.751896][ C1] x7 : 7fffffffffffffff x6 : 00000006b3e41150 [ 29.752913][ C1] x5 : 00000006b3e41150 x4 : f6ff000003b55498 [ 29.753940][ C1] x3 : 00000006b4e25d50 x2 : 00000006b3e41150 [ 29.755034][ C1] x1 : 00000006b4e25d50 x0 : 0000000000000003 [ 29.756069][ C1] Call trace: [ 29.756601][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.757365][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.758135][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.758958][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.759734][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.760484][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.761593][ C1] gic_handle_irq+0x50/0xd0 [ 29.762276][ C1] el1_irq+0xb4/0x180 [ 29.762944][ C1] stack_depot_save+0xa4/0x4bc [ 29.763674][ C1] kasan_save_stack+0x44/0x60 [ 29.764431][ C1] __kasan_slab_alloc+0xd8/0x120 [ 29.765161][ C1] kmem_cache_alloc+0x1bc/0x33c [ 29.765908][ C1] __kernfs_new_node+0x68/0x210 [ 29.766665][ C1] kernfs_new_node+0x48/0x70 [ 29.767347][ C1] __kernfs_create_file+0x30/0x160 [ 29.768143][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.768952][ C1] internal_create_group+0x104/0x3cc [ 29.769723][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.770497][ C1] sysfs_create_groups+0x20/0x34 [ 29.771636][ C1] device_add+0x288/0x7d0 [ 29.772355][ C1] __device_add_disk+0x144/0x490 [ 29.773109][ C1] device_add_disk+0x14/0x20 [ 29.773829][ C1] brd_init+0x168/0x214 [ 29.774489][ C1] do_one_initcall+0x50/0x1b0 [ 29.775210][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.776012][ C1] kernel_init+0x14/0x118 [ 29.776694][ C1] ret_from_fork+0x10/0x34 [ 29.777409][ C1] ---[ end trace dc83b52b5dca1367 ]--- [ 29.778445][ C1] ------------[ cut here ]------------ [ 29.779122][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.780333][ C1] Modules linked in: [ 29.781125][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.782310][ C1] Hardware name: linux,dummy-virt (DT) [ 29.783018][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.783908][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.784677][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.785402][ C1] sp : ffff80001000be30 [ 29.785981][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.787007][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.788051][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.789043][ C1] x23: 0000000000000080 x22: 00000006b772e2a0 [ 29.790018][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.791098][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.792147][ C1] x17: 000000000000003f x16: 000000000000000a [ 29.793123][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 29.794099][ C1] x13: 00001c5f0ab89ab0 x12: 0071800d9c44b4a0 [ 29.795751][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 29.796785][ C1] x9 : ffff800012a0e000 x8 : 00000006b6def550 [ 29.797733][ C1] x7 : 7fffffffffffffff x6 : 00000006b6def550 [ 29.798675][ C1] x5 : 00000006b6def550 x4 : f6ff000003b55498 [ 29.799617][ C1] x3 : 00000006b7dd4150 x2 : 00000006b6def550 [ 29.800565][ C1] x1 : 00000006b7dd4150 x0 : 0000000000000003 [ 29.801633][ C1] Call trace: [ 29.802112][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.802890][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.803664][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.804348][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.805142][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.805892][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.806711][ C1] gic_handle_irq+0x50/0xd0 [ 29.807389][ C1] el1_irq+0xb4/0x180 [ 29.808070][ C1] stack_depot_save+0xa4/0x4bc [ 29.808789][ C1] kasan_save_stack+0x44/0x60 [ 29.809470][ C1] __kasan_slab_alloc+0xd8/0x120 [ 29.810186][ C1] kmem_cache_alloc+0x1bc/0x33c [ 29.811189][ C1] __kernfs_new_node+0x68/0x210 [ 29.812032][ C1] kernfs_new_node+0x48/0x70 [ 29.812782][ C1] __kernfs_create_file+0x30/0x160 [ 29.813505][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 29.814259][ C1] internal_create_group+0x104/0x3cc [ 29.815013][ C1] internal_create_groups.part.0+0x4c/0xc0 [ 29.815823][ C1] sysfs_create_groups+0x20/0x34 [ 29.816660][ C1] device_add+0x288/0x7d0 [ 29.817676][ C1] __device_add_disk+0x144/0x490 [ 29.818372][ C1] device_add_disk+0x14/0x20 [ 29.819052][ C1] brd_init+0x168/0x214 [ 29.819723][ C1] do_one_initcall+0x50/0x1b0 [ 29.820415][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.821191][ C1] kernel_init+0x14/0x118 [ 29.821892][ C1] ret_from_fork+0x10/0x34 [ 29.822579][ C1] ---[ end trace dc83b52b5dca1368 ]--- [ 29.924112][ C1] ------------[ cut here ]------------ [ 29.924901][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.926239][ C1] Modules linked in: [ 29.926946][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.928209][ C1] Hardware name: linux,dummy-virt (DT) [ 29.928959][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.929783][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.930853][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.931802][ C1] sp : ffff80001000be30 [ 29.932422][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.933474][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.934545][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.935642][ C1] x23: 0000000000000080 x22: 00000006c0217c00 [ 29.936748][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.937866][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.938935][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.939964][ C1] x15: 00001fc5c80b1124 x14: 00000000000002f0 [ 29.941718][ C1] x13: 0000000000000000 x12: 0000000000000040 [ 29.942754][ C1] x11: faff000003400260 x10: faff000003400262 [ 29.943810][ C1] x9 : ffff8000127cbe78 x8 : 00000006bfcfa150 [ 29.944947][ C1] x7 : 7fffffffffffffff x6 : 00000006bfcfa150 [ 29.946036][ C1] x5 : 00000006bfcfa150 x4 : f6ff000003b55498 [ 29.947082][ C1] x3 : 00000006c0cded50 x2 : 00000006bfcfa150 [ 29.948171][ C1] x1 : 00000006c0cded50 x0 : 0000000000000009 [ 29.949366][ C1] Call trace: [ 29.949886][ C1] vkms_vblank_simulate+0x120/0x130 [ 29.950557][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 29.951566][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 29.952285][ C1] arch_timer_handler_phys+0x38/0x50 [ 29.953045][ C1] handle_percpu_devid_irq+0x84/0x150 [ 29.953858][ C1] __handle_domain_irq+0x7c/0xe0 [ 29.954550][ C1] gic_handle_irq+0x50/0xd0 [ 29.955274][ C1] el1_irq+0xb4/0x180 [ 29.956029][ C1] _raw_spin_unlock_irqrestore+0x10/0x50 [ 29.956873][ C1] __wake_up+0x18/0x24 [ 29.957554][ C1] call_usermodehelper_exec+0x15c/0x200 [ 29.958448][ C1] kobject_uevent_env+0x578/0x690 [ 29.959154][ C1] kobject_uevent+0x14/0x20 [ 29.959902][ C1] device_add+0x330/0x7d0 [ 29.960560][ C1] device_create_groups_vargs+0x108/0x174 [ 29.962110][ C1] device_create+0x5c/0x8c [ 29.962964][ C1] bdi_register_va+0x80/0x214 [ 29.963729][ C1] bdi_register+0x58/0x80 [ 29.964380][ C1] __device_add_disk+0x40c/0x490 [ 29.965102][ C1] device_add_disk+0x14/0x20 [ 29.965796][ C1] brd_init+0x168/0x214 [ 29.966451][ C1] do_one_initcall+0x50/0x1b0 [ 29.967155][ C1] kernel_init_freeable+0x1d8/0x240 [ 29.967935][ C1] kernel_init+0x14/0x118 [ 29.968674][ C1] ret_from_fork+0x10/0x34 [ 29.969449][ C1] ---[ end trace dc83b52b5dca1369 ]--- [ 29.970858][ C1] ------------[ cut here ]------------ [ 29.971736][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 29.973040][ C1] Modules linked in: [ 29.973973][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 29.975268][ C1] Hardware name: linux,dummy-virt (DT) [ 29.976054][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 29.976979][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 29.977747][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 29.978514][ C1] sp : ffff80001000be30 [ 29.980231][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 29.983754][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 29.985186][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 29.987127][ C1] x23: 0000000000000080 x22: 00000006c2e9c870 [ 29.988259][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 29.989336][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 29.990424][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 29.991553][ C1] x15: 00001fc5c80b1124 x14: 000000000000ba7e [ 29.992675][ C1] x13: 000028e484e13a10 x12: 00a3943d038ca728 [ 29.993811][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 29.996260][ C1] x9 : 0000000000000400 x8 : 00000006c2ca8550 [ 29.998693][ C1] x7 : 7fffffffffffffff x6 : 00000006c2ca8550 [ 30.001855][ C1] x5 : 00000006c2ca8550 x4 : f6ff000003b55498 [ 30.002992][ C1] x3 : 00000006c3c8d150 x2 : 00000006c2ca8550 [ 30.004119][ C1] x1 : 00000006c3c8d150 x0 : 0000000000000003 [ 30.005220][ C1] Call trace: [ 30.005797][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.006610][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.007417][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.008243][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.009083][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.009933][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.010724][ C1] gic_handle_irq+0x50/0xd0 [ 30.012969][ C1] el1_irq+0xb4/0x180 [ 30.014332][ C1] _raw_spin_unlock_irqrestore+0x10/0x50 [ 30.015145][ C1] __wake_up+0x18/0x24 [ 30.015833][ C1] call_usermodehelper_exec+0x15c/0x200 [ 30.016690][ C1] kobject_uevent_env+0x578/0x690 [ 30.017583][ C1] kobject_uevent+0x14/0x20 [ 30.018373][ C1] device_add+0x330/0x7d0 [ 30.019110][ C1] device_create_groups_vargs+0x108/0x174 [ 30.019950][ C1] device_create+0x5c/0x8c [ 30.020733][ C1] bdi_register_va+0x80/0x214 [ 30.022721][ C1] bdi_register+0x58/0x80 [ 30.023473][ C1] __device_add_disk+0x40c/0x490 [ 30.024203][ C1] device_add_disk+0x14/0x20 [ 30.024908][ C1] brd_init+0x168/0x214 [ 30.025580][ C1] do_one_initcall+0x50/0x1b0 [ 30.026313][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.027092][ C1] kernel_init+0x14/0x118 [ 30.027818][ C1] ret_from_fork+0x10/0x34 [ 30.028567][ C1] ---[ end trace dc83b52b5dca136a ]--- [ 30.031146][ C1] ------------[ cut here ]------------ [ 30.031968][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.035690][ C1] Modules linked in: [ 30.037672][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.040308][ C1] Hardware name: linux,dummy-virt (DT) [ 30.041534][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.042522][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.043345][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.044199][ C1] sp : ffff80001000be30 [ 30.044821][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.045913][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.047130][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.048374][ C1] x23: 0000000000000080 x22: 00000006c67b5900 [ 30.049508][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.051250][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.052433][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.053625][ C1] x15: 00003597bbf5a6b8 x14: 0000000000000192 [ 30.054696][ C1] x13: 0000000000000001 x12: 0000000000000039 [ 30.055889][ C1] x11: 0000000000000001 x10: 0000000000000192 [ 30.056964][ C1] x9 : 0000000002e04eb9 x8 : 00000006c5c56950 [ 30.058026][ C1] x7 : 7fffffffffffffff x6 : 00000006c5c56950 [ 30.059058][ C1] x5 : 00000006c5c56950 x4 : f6ff000003b55498 [ 30.060145][ C1] x3 : 00000006c6c3b550 x2 : 00000006c5c56950 [ 30.061661][ C1] x1 : 00000006c6c3b550 x0 : 0000000000000003 [ 30.062777][ C1] Call trace: [ 30.063422][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.064439][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.065364][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.066255][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.067162][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.068094][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.068986][ C1] gic_handle_irq+0x50/0xd0 [ 30.069747][ C1] el1_irq+0xb4/0x180 [ 30.070523][ C1] _raw_spin_unlock_irqrestore+0x10/0x50 [ 30.071714][ C1] __wake_up+0x18/0x24 [ 30.072471][ C1] call_usermodehelper_exec+0x15c/0x200 [ 30.073298][ C1] kobject_uevent_env+0x578/0x690 [ 30.074149][ C1] kobject_uevent+0x14/0x20 [ 30.075227][ C1] device_add+0x330/0x7d0 [ 30.076249][ C1] device_create_groups_vargs+0x108/0x174 [ 30.077365][ C1] device_create+0x5c/0x8c [ 30.078450][ C1] bdi_register_va+0x80/0x214 [ 30.079230][ C1] bdi_register+0x58/0x80 [ 30.080073][ C1] __device_add_disk+0x40c/0x490 [ 30.081282][ C1] device_add_disk+0x14/0x20 [ 30.082382][ C1] brd_init+0x168/0x214 [ 30.083128][ C1] do_one_initcall+0x50/0x1b0 [ 30.083975][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.084790][ C1] kernel_init+0x14/0x118 [ 30.085519][ C1] ret_from_fork+0x10/0x34 [ 30.086283][ C1] ---[ end trace dc83b52b5dca136b ]--- [ 30.187898][ C1] ------------[ cut here ]------------ [ 30.188980][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.192037][ C1] Modules linked in: [ 30.193690][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.197936][ C1] Hardware name: linux,dummy-virt (DT) [ 30.198674][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.203045][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.203880][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.204602][ C1] sp : ffff80001000be30 [ 30.205167][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.206178][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.207202][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.208208][ C1] x23: 0000000000000080 x22: 00000006cfd6b760 [ 30.209199][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.210201][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.211201][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.220599][ C1] x15: 0000222849a092bc x14: 0000000000000000 [ 30.231809][ C1] x13: 00008c27916190d1 x12: 0230a3c1b9307fce [ 30.232863][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 30.233888][ C1] x9 : 0000000000000400 x8 : 00000006cfb46150 [ 30.234869][ C1] x7 : 7fffffffffffffff x6 : 00000006cfb46150 [ 30.235807][ C1] x5 : 00000006cfb46150 x4 : f6ff000003b55498 [ 30.236791][ C1] x3 : 00000006d0b2ad50 x2 : 00000006cfb46150 [ 30.237786][ C1] x1 : 00000006d0b2ad50 x0 : 000000000000000a [ 30.238777][ C1] Call trace: [ 30.239303][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.240104][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.240866][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.241616][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.242321][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.243073][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.250827][ C1] gic_handle_irq+0x50/0xd0 [ 30.251711][ C1] el1_irq+0xb4/0x180 [ 30.252459][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.253184][ C1] __kernfs_new_node+0x68/0x210 [ 30.253868][ C1] kernfs_new_node+0x48/0x70 [ 30.254527][ C1] __kernfs_create_file+0x30/0x160 [ 30.255238][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.256042][ C1] internal_create_group+0x104/0x3cc [ 30.256800][ C1] sysfs_create_group+0x18/0x24 [ 30.257523][ C1] blk_register_queue+0x94/0x220 [ 30.258264][ C1] __device_add_disk+0x328/0x490 [ 30.259005][ C1] device_add_disk+0x14/0x20 [ 30.259755][ C1] brd_init+0x168/0x214 [ 30.260526][ C1] do_one_initcall+0x50/0x1b0 [ 30.261232][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.261985][ C1] kernel_init+0x14/0x118 [ 30.262672][ C1] ret_from_fork+0x10/0x34 [ 30.263354][ C1] ---[ end trace dc83b52b5dca136c ]--- [ 30.271983][ C1] ------------[ cut here ]------------ [ 30.273106][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.274384][ C1] Modules linked in: [ 30.275122][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.276442][ C1] Hardware name: linux,dummy-virt (DT) [ 30.277886][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.280586][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.282787][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.286053][ C1] sp : ffff80001000be30 [ 30.288508][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.290169][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.295331][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.299356][ C1] x23: 0000000000000080 x22: 00000006d4c84700 [ 30.305463][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.307683][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.308817][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.310959][ C1] x15: 000026b0eb3b145b x14: 00000000000000eb [ 30.312004][ C1] x13: 0000000000000001 x12: 0000000000000048 [ 30.312994][ C1] x11: 0000000000000001 x10: 00000000000000eb [ 30.317215][ C1] x9 : 0000000002dda622 x8 : 00000006d4abdd50 [ 30.320539][ C1] x7 : 7fffffffffffffff x6 : 00000006d4abdd50 [ 30.322189][ C1] x5 : 00000006d4abdd50 x4 : f6ff000003b55498 [ 30.324440][ C1] x3 : 00000006d5aa2950 x2 : 00000006d4abdd50 [ 30.325622][ C1] x1 : 00000006d5aa2950 x0 : 0000000000000005 [ 30.327858][ C1] Call trace: [ 30.329245][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.334773][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.337028][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.337905][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.338731][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.340150][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.343023][ C1] gic_handle_irq+0x50/0xd0 [ 30.344879][ C1] el1_irq+0xb4/0x180 [ 30.348321][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.349724][ C1] __kernfs_new_node+0x68/0x210 [ 30.352033][ C1] kernfs_new_node+0x48/0x70 [ 30.354311][ C1] __kernfs_create_file+0x30/0x160 [ 30.355076][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.355820][ C1] internal_create_group+0x104/0x3cc [ 30.357224][ C1] sysfs_create_group+0x18/0x24 [ 30.357988][ C1] blk_register_queue+0x94/0x220 [ 30.359099][ C1] __device_add_disk+0x328/0x490 [ 30.359969][ C1] device_add_disk+0x14/0x20 [ 30.360604][ C1] brd_init+0x168/0x214 [ 30.361243][ C1] do_one_initcall+0x50/0x1b0 [ 30.361894][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.363164][ C1] kernel_init+0x14/0x118 [ 30.364720][ C1] ret_from_fork+0x10/0x34 [ 30.365886][ C1] ---[ end trace dc83b52b5dca136d ]--- [ 30.367204][ C1] ------------[ cut here ]------------ [ 30.369620][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.378453][ C1] Modules linked in: [ 30.379222][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.380578][ C1] Hardware name: linux,dummy-virt (DT) [ 30.381650][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.382549][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.383346][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.384522][ C1] sp : ffff80001000be30 [ 30.385292][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.388586][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.389684][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.390724][ C1] x23: 0000000000000080 x22: 00000006da8736d0 [ 30.391884][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.392934][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.394031][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.395105][ C1] x15: 000018ffa506406b x14: 000000000000006f [ 30.396179][ C1] x13: 0000000000000001 x12: 000000000000005c [ 30.397242][ C1] x11: 0000000000000001 x10: 000000000000006f [ 30.398272][ C1] x9 : 0000000002dbb598 x8 : 00000006d9a35950 [ 30.400345][ C1] x7 : 7fffffffffffffff x6 : 00000006d9a35950 [ 30.402315][ C1] x5 : 00000006d9a35950 x4 : f6ff000003b55498 [ 30.403357][ C1] x3 : 00000006daa1a550 x2 : 00000006d9a35950 [ 30.404455][ C1] x1 : 00000006daa1a550 x0 : 0000000000000005 [ 30.405724][ C1] Call trace: [ 30.406350][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.407464][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.408276][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.409937][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.411785][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.412637][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.413384][ C1] gic_handle_irq+0x50/0xd0 [ 30.414336][ C1] el1_irq+0xb4/0x180 [ 30.415000][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.415969][ C1] __kernfs_new_node+0x68/0x210 [ 30.416987][ C1] kernfs_new_node+0x48/0x70 [ 30.417704][ C1] __kernfs_create_file+0x30/0x160 [ 30.418509][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 30.419248][ C1] internal_create_group+0x104/0x3cc [ 30.420010][ C1] sysfs_create_group+0x18/0x24 [ 30.420720][ C1] blk_register_queue+0x94/0x220 [ 30.421823][ C1] __device_add_disk+0x328/0x490 [ 30.422537][ C1] device_add_disk+0x14/0x20 [ 30.423248][ C1] brd_init+0x168/0x214 [ 30.423913][ C1] do_one_initcall+0x50/0x1b0 [ 30.424742][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.425578][ C1] kernel_init+0x14/0x118 [ 30.426252][ C1] ret_from_fork+0x10/0x34 [ 30.427149][ C1] ---[ end trace dc83b52b5dca136e ]--- [ 30.507649][ T1] brd: module loaded [ 30.534960][ C1] ------------[ cut here ]------------ [ 30.535733][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.537055][ C1] Modules linked in: [ 30.537769][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.539027][ C1] Hardware name: linux,dummy-virt (DT) [ 30.539760][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.540692][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.541472][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.542258][ C1] sp : ffff80001000be30 [ 30.542832][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.543940][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.545892][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.546955][ C1] x23: 0000000000000080 x22: 00000006e48a3010 [ 30.548044][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.549455][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.553971][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.557594][ C1] x15: 0000000000000002 x14: 0000000000000000 [ 30.559206][ C1] x13: 0000000000000361 x12: 0000000000000040 [ 30.561396][ C1] x11: faff000003400260 x10: faff000003400262 [ 30.565057][ C1] x9 : ffff8000127cbe78 x8 : 00000006e3925150 [ 30.566082][ C1] x7 : 7fffffffffffffff x6 : 00000006e3925150 [ 30.568571][ C1] x5 : 00000006e3925150 x4 : f6ff000003b55498 [ 30.570875][ C1] x3 : 00000006e4909d50 x2 : 00000006e3925150 [ 30.572362][ C1] x1 : 00000006e4909d50 x0 : 000000000000000a [ 30.573314][ C1] Call trace: [ 30.573783][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.574353][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.574997][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.575603][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.576283][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.577044][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.577820][ C1] gic_handle_irq+0x50/0xd0 [ 30.578542][ C1] el1_irq+0xb4/0x180 [ 30.579195][ C1] _raw_spin_unlock_irqrestore+0x10/0x50 [ 30.580087][ C1] __alloc_percpu_gfp+0x18/0x24 [ 30.581740][ C1] percpu_ref_init+0x34/0x140 [ 30.582511][ C1] blk_alloc_queue+0x1b0/0x250 [ 30.583201][ C1] blk_mq_init_queue+0x1c/0x80 [ 30.583995][ C1] loop_add+0x11c/0x260 [ 30.584652][ C1] loop_init+0x104/0x158 [ 30.585313][ C1] do_one_initcall+0x50/0x1b0 [ 30.586056][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.586790][ C1] kernel_init+0x14/0x118 [ 30.587446][ C1] ret_from_fork+0x10/0x34 [ 30.588190][ C1] ---[ end trace dc83b52b5dca136f ]--- [ 30.589412][ C1] ------------[ cut here ]------------ [ 30.590106][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.591506][ C1] Modules linked in: [ 30.592235][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.593467][ C1] Hardware name: linux,dummy-virt (DT) [ 30.594169][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.595099][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.595888][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.596795][ C1] sp : ffff80001000be30 [ 30.597450][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.598515][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.599565][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.602193][ C1] x23: 0000000000000080 x22: 00000006e7c9a810 [ 30.603718][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.604878][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.605874][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.606964][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 30.608033][ C1] x13: 0000292a71d16b2c x12: 00a4b08291bdf946 [ 30.609140][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 30.610335][ C1] x9 : 0000000000000400 x8 : 00000006e78b8150 [ 30.612637][ C1] x7 : 7fffffffffffffff x6 : 00000006e78b8150 [ 30.613955][ C1] x5 : 00000006e78b8150 x4 : f6ff000003b55498 [ 30.614985][ C1] x3 : 00000006e889cd50 x2 : 00000006e78b8150 [ 30.616075][ C1] x1 : 00000006e889cd50 x0 : 0000000000000004 [ 30.617045][ C1] Call trace: [ 30.617821][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.619365][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.620204][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.621073][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.621904][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.622682][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.623426][ C1] gic_handle_irq+0x50/0xd0 [ 30.624561][ C1] el1_irq+0xb4/0x180 [ 30.625232][ C1] _raw_spin_unlock_irqrestore+0x10/0x50 [ 30.626067][ C1] __alloc_percpu_gfp+0x18/0x24 [ 30.627030][ C1] percpu_ref_init+0x34/0x140 [ 30.627908][ C1] blk_alloc_queue+0x1b0/0x250 [ 30.630616][ C1] blk_mq_init_queue+0x1c/0x80 [ 30.631905][ C1] loop_add+0x11c/0x260 [ 30.632560][ C1] loop_init+0x104/0x158 [ 30.633257][ C1] do_one_initcall+0x50/0x1b0 [ 30.633990][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.634776][ C1] kernel_init+0x14/0x118 [ 30.635739][ C1] ret_from_fork+0x10/0x34 [ 30.636469][ C1] ---[ end trace dc83b52b5dca1370 ]--- [ 30.637740][ C1] ------------[ cut here ]------------ [ 30.638417][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.639634][ C1] Modules linked in: [ 30.640349][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.642110][ C1] Hardware name: linux,dummy-virt (DT) [ 30.642823][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.643751][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.644615][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.645394][ C1] sp : ffff80001000be30 [ 30.645991][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.647103][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.648249][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.649293][ C1] x23: 0000000000000080 x22: 00000006eaa6d960 [ 30.650350][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.651633][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 30.652735][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.653800][ C1] x15: 0000682798dab004 x14: 00000000000003be [ 30.655151][ C1] x13: 0000000000000001 x12: 000000000000001a [ 30.656368][ C1] x11: 0000000000000001 x10: 00000000000003be [ 30.657432][ C1] x9 : 0000000002e8ed92 x8 : 00000006ea866550 [ 30.658503][ C1] x7 : 7fffffffffffffff x6 : 00000006ea866550 [ 30.659511][ C1] x5 : 00000006ea866550 x4 : f6ff000003b55498 [ 30.660507][ C1] x3 : 00000006eb84b150 x2 : 00000006ea866550 [ 30.662710][ C1] x1 : 00000006eb84b150 x0 : 0000000000000003 [ 30.663769][ C1] Call trace: [ 30.664332][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.665084][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.665873][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.666607][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.667379][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.668178][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.668909][ C1] gic_handle_irq+0x50/0xd0 [ 30.669596][ C1] el1_irq+0xb4/0x180 [ 30.670257][ C1] _raw_spin_unlock_irqrestore+0x10/0x50 [ 30.671437][ C1] __alloc_percpu_gfp+0x18/0x24 [ 30.672251][ C1] percpu_ref_init+0x34/0x140 [ 30.672923][ C1] blk_alloc_queue+0x1b0/0x250 [ 30.673620][ C1] blk_mq_init_queue+0x1c/0x80 [ 30.674348][ C1] loop_add+0x11c/0x260 [ 30.674999][ C1] loop_init+0x104/0x158 [ 30.675678][ C1] do_one_initcall+0x50/0x1b0 [ 30.676453][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.677239][ C1] kernel_init+0x14/0x118 [ 30.677959][ C1] ret_from_fork+0x10/0x34 [ 30.678683][ C1] ---[ end trace dc83b52b5dca1371 ]--- [ 30.780090][ C1] ------------[ cut here ]------------ [ 30.781904][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.783188][ C1] Modules linked in: [ 30.783946][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.785216][ C1] Hardware name: linux,dummy-virt (DT) [ 30.785945][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.787166][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.788444][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.789500][ C1] sp : ffff80001000be30 [ 30.790100][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.796390][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.797709][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.800232][ C1] x23: 0000000000000080 x22: 00000006f3234ba0 [ 30.801998][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.805916][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 30.807506][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.808647][ C1] x15: 0000000000000020 x14: 0000000000000000 [ 30.809750][ C1] x13: 0000686dab57be68 x12: 01a1bb29f7a99970 [ 30.811958][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 30.813084][ C1] x9 : 0000000000000800 x8 : 00000006f278c550 [ 30.814178][ C1] x7 : 7fffffffffffffff x6 : 00000006f278c550 [ 30.815235][ C1] x5 : 00000006f278c550 x4 : f6ff000003b55498 [ 30.816303][ C1] x3 : 00000006f3771150 x2 : 00000006f278c550 [ 30.817414][ C1] x1 : 00000006f3771150 x0 : 0000000000000008 [ 30.818565][ C1] Call trace: [ 30.819152][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.820015][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.828944][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.829747][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.830524][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.839224][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.840156][ C1] gic_handle_irq+0x50/0xd0 [ 30.841138][ C1] el1_irq+0xb4/0x180 [ 30.841892][ C1] stack_trace_consume_entry+0x1c/0x70 [ 30.842729][ C1] stack_trace_save+0x50/0x80 [ 30.843718][ C1] kasan_save_stack+0x28/0x60 [ 30.845160][ C1] __kasan_slab_alloc+0xd8/0x120 [ 30.845942][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.846737][ C1] __d_alloc+0x2c/0x1f0 [ 30.847459][ C1] d_alloc+0x1c/0xa0 [ 30.848227][ C1] d_alloc_parallel+0x6c/0x4a0 [ 30.849039][ C1] __lookup_slow+0x5c/0x14c [ 30.849824][ C1] lookup_one_len+0x94/0xa4 [ 30.852885][ C1] start_creating.part.0+0x74/0x160 [ 30.853686][ C1] __debugfs_create_file+0x74/0x1fc [ 30.854514][ C1] debugfs_create_file+0x2c/0x40 [ 30.855876][ C1] blk_mq_debugfs_register_hctx+0xfc/0x160 [ 30.857544][ C1] blk_mq_debugfs_register+0x98/0x104 [ 30.860166][ C1] blk_register_queue+0xe4/0x220 [ 30.861656][ C1] __device_add_disk+0x328/0x490 [ 30.862905][ C1] device_add_disk+0x14/0x20 [ 30.863645][ C1] loop_add+0x1f4/0x260 [ 30.864420][ C1] loop_init+0x104/0x158 [ 30.865203][ C1] do_one_initcall+0x50/0x1b0 [ 30.865967][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.867040][ C1] kernel_init+0x14/0x118 [ 30.867767][ C1] ret_from_fork+0x10/0x34 [ 30.868633][ C1] ---[ end trace dc83b52b5dca1372 ]--- [ 30.870174][ C1] ------------[ cut here ]------------ [ 30.879412][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.881336][ C1] Modules linked in: [ 30.882373][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.884176][ C1] Hardware name: linux,dummy-virt (DT) [ 30.884927][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.885911][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.886896][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.889169][ C1] sp : ffff80001000be30 [ 30.889770][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.891306][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.892486][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.893576][ C1] x23: 0000000000000080 x22: 00000006f8803160 [ 30.894628][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.895746][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 30.896812][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.897893][ C1] x15: 00001f860240c33e x14: 00000000000000f4 [ 30.898946][ C1] x13: 0000000000000001 x12: 0000000000000052 [ 30.900116][ C1] x11: 0000000000000002 x10: 00000000000000f4 [ 30.902496][ C1] x9 : 0000000005bb8d13 x8 : 00000006f86e8d50 [ 30.903521][ C1] x7 : 7fffffffffffffff x6 : 00000006f86e8d50 [ 30.904560][ C1] x5 : 00000006f86e8d50 x4 : f6ff000003b55498 [ 30.905571][ C1] x3 : 00000006f96cd950 x2 : 00000006f86e8d50 [ 30.906585][ C1] x1 : 00000006f96cd950 x0 : 0000000000000006 [ 30.909134][ C1] Call trace: [ 30.909717][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.910660][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.912022][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.913202][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.913894][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.914589][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.915339][ C1] gic_handle_irq+0x50/0xd0 [ 30.916088][ C1] el1_irq+0xb4/0x180 [ 30.916741][ C1] stack_trace_consume_entry+0x1c/0x70 [ 30.917537][ C1] stack_trace_save+0x50/0x80 [ 30.918270][ C1] kasan_save_stack+0x28/0x60 [ 30.919085][ C1] __kasan_slab_alloc+0xd8/0x120 [ 30.919828][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.920596][ C1] __d_alloc+0x2c/0x1f0 [ 30.921681][ C1] d_alloc+0x1c/0xa0 [ 30.922261][ C1] d_alloc_parallel+0x6c/0x4a0 [ 30.923017][ C1] __lookup_slow+0x5c/0x14c [ 30.923707][ C1] lookup_one_len+0x94/0xa4 [ 30.924373][ C1] start_creating.part.0+0x74/0x160 [ 30.925050][ C1] __debugfs_create_file+0x74/0x1fc [ 30.925796][ C1] debugfs_create_file+0x2c/0x40 [ 30.926578][ C1] blk_mq_debugfs_register_hctx+0xfc/0x160 [ 30.928289][ C1] blk_mq_debugfs_register+0x98/0x104 [ 30.929079][ C1] blk_register_queue+0xe4/0x220 [ 30.929886][ C1] __device_add_disk+0x328/0x490 [ 30.930628][ C1] device_add_disk+0x14/0x20 [ 30.932360][ C1] loop_add+0x1f4/0x260 [ 30.933119][ C1] loop_init+0x104/0x158 [ 30.933818][ C1] do_one_initcall+0x50/0x1b0 [ 30.934535][ C1] kernel_init_freeable+0x1d8/0x240 [ 30.935318][ C1] kernel_init+0x14/0x118 [ 30.936091][ C1] ret_from_fork+0x10/0x34 [ 30.936859][ C1] ---[ end trace dc83b52b5dca1373 ]--- [ 30.938266][ C1] ------------[ cut here ]------------ [ 30.939010][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 30.940285][ C1] Modules linked in: [ 30.943806][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 30.945091][ C1] Hardware name: linux,dummy-virt (DT) [ 30.945823][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 30.946795][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 30.947617][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 30.948441][ C1] sp : ffff80001000be30 [ 30.949085][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 30.950211][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 30.951966][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 30.953081][ C1] x23: 0000000000000080 x22: 00000006fc8fdab0 [ 30.954147][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 30.955252][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 30.956443][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 30.957600][ C1] x15: 00002ce06f9e0558 x14: 00000000000000e9 [ 30.958587][ C1] x13: 0000000000000001 x12: 000000000000003f [ 30.959612][ C1] x11: 0000000000000001 x10: 00000000000000e9 [ 30.960710][ C1] x9 : 0000000002dd9b17 x8 : 00000006fc67bd50 [ 30.962224][ C1] x7 : 7fffffffffffffff x6 : 00000006fc67bd50 [ 30.963286][ C1] x5 : 00000006fc67bd50 x4 : f6ff000003b55498 [ 30.964335][ C1] x3 : 00000006fd660950 x2 : 00000006fc67bd50 [ 30.965332][ C1] x1 : 00000006fd660950 x0 : 0000000000000004 [ 30.966391][ C1] Call trace: [ 30.966927][ C1] vkms_vblank_simulate+0x120/0x130 [ 30.967744][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 30.968566][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 30.969338][ C1] arch_timer_handler_phys+0x38/0x50 [ 30.970156][ C1] handle_percpu_devid_irq+0x84/0x150 [ 30.971549][ C1] __handle_domain_irq+0x7c/0xe0 [ 30.972373][ C1] gic_handle_irq+0x50/0xd0 [ 30.973129][ C1] el1_irq+0xb4/0x180 [ 30.973769][ C1] stack_trace_consume_entry+0x1c/0x70 [ 30.974494][ C1] stack_trace_save+0x50/0x80 [ 30.975230][ C1] kasan_save_stack+0x28/0x60 [ 30.976003][ C1] __kasan_slab_alloc+0xd8/0x120 [ 30.978048][ C1] kmem_cache_alloc+0x1bc/0x33c [ 30.979935][ C1] __d_alloc+0x2c/0x1f0 [ 30.982242][ C1] d_alloc+0x1c/0xa0 [ 30.983775][ C1] d_alloc_parallel+0x6c/0x4a0 [ 30.985493][ C1] __lookup_slow+0x5c/0x14c [ 30.987185][ C1] lookup_one_len+0x94/0xa4 [ 30.988964][ C1] start_creating.part.0+0x74/0x160 [ 30.990910][ C1] __debugfs_create_file+0x74/0x1fc [ 30.993293][ C1] debugfs_create_file+0x2c/0x40 [ 30.994031][ C1] blk_mq_debugfs_register_hctx+0xfc/0x160 [ 30.994853][ C1] blk_mq_debugfs_register+0x98/0x104 [ 30.996378][ C1] blk_register_queue+0xe4/0x220 [ 30.998781][ C1] __device_add_disk+0x328/0x490 [ 30.999550][ C1] device_add_disk+0x14/0x20 [ 31.000374][ C1] loop_add+0x1f4/0x260 [ 31.001695][ C1] loop_init+0x104/0x158 [ 31.002364][ C1] do_one_initcall+0x50/0x1b0 [ 31.003043][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.003802][ C1] kernel_init+0x14/0x118 [ 31.004504][ C1] ret_from_fork+0x10/0x34 [ 31.005203][ C1] ---[ end trace dc83b52b5dca1374 ]--- [ 31.106664][ C1] ------------[ cut here ]------------ [ 31.107438][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.109057][ C1] Modules linked in: [ 31.121152][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.122463][ C1] Hardware name: linux,dummy-virt (DT) [ 31.123202][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.124047][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.125135][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.125986][ C1] sp : ffff80001000be30 [ 31.126626][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.127925][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.129075][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.130163][ C1] x23: 0000000000000080 x22: 00000007069a2560 [ 31.131233][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.132377][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 31.133311][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.134454][ C1] x15: 0000000000000002 x14: 0000000000000000 [ 31.135257][ C1] x13: 0000b05a6c0cb4d6 x12: 02c170d91062e4fa [ 31.143953][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 31.145140][ C1] x9 : 0000000000000800 x8 : 000000070656b550 [ 31.146320][ C1] x7 : 7fffffffffffffff x6 : 000000070656b550 [ 31.148320][ C1] x5 : 000000070656b550 x4 : f6ff000003b55498 [ 31.149963][ C1] x3 : 0000000707550150 x2 : 000000070656b550 [ 31.151598][ C1] x1 : 0000000707550150 x0 : 000000000000000a [ 31.152730][ C1] Call trace: [ 31.153317][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.154209][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.155045][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.155748][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.156643][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.157449][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.158121][ C1] gic_handle_irq+0x50/0xd0 [ 31.158962][ C1] el1_irq+0xb4/0x180 [ 31.159721][ C1] idr_alloc_cyclic+0x68/0xe4 [ 31.160356][ C1] __kernfs_new_node+0xa8/0x210 [ 31.161728][ C1] kernfs_new_node+0x48/0x70 [ 31.162292][ C1] __kernfs_create_file+0x30/0x160 [ 31.162932][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 31.163833][ C1] internal_create_group+0x104/0x3cc [ 31.164522][ C1] sysfs_create_group+0x18/0x24 [ 31.165122][ C1] blk_register_queue+0x94/0x220 [ 31.165961][ C1] __device_add_disk+0x328/0x490 [ 31.166834][ C1] device_add_disk+0x14/0x20 [ 31.167418][ C1] loop_add+0x1f4/0x260 [ 31.168165][ C1] loop_init+0x104/0x158 [ 31.168913][ C1] do_one_initcall+0x50/0x1b0 [ 31.169387][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.170107][ C1] kernel_init+0x14/0x118 [ 31.171355][ C1] ret_from_fork+0x10/0x34 [ 31.171880][ C1] ---[ end trace dc83b52b5dca1375 ]--- [ 31.172810][ C1] ------------[ cut here ]------------ [ 31.173269][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.174056][ C1] Modules linked in: [ 31.174610][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.175916][ C1] Hardware name: linux,dummy-virt (DT) [ 31.176455][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.177244][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.178159][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.178827][ C1] sp : ffff80001000be30 [ 31.179232][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.180428][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.184201][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.185350][ C1] x23: 0000000000000080 x22: 000000070a8d31a0 [ 31.186221][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.187406][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 31.188387][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.189385][ C1] x15: 0000abdc15cf095c x14: 00000000000000e4 [ 31.191227][ C1] x13: 0000000000000001 x12: 0000000000000003 [ 31.192061][ C1] x11: 0000000000000001 x10: 00000000000000e4 [ 31.193246][ C1] x9 : 0000000002dd873c x8 : 000000070a4fe550 [ 31.194103][ C1] x7 : 7fffffffffffffff x6 : 000000070a4fe550 [ 31.194759][ C1] x5 : 000000070a4fe550 x4 : f6ff000003b55498 [ 31.195369][ C1] x3 : 000000070b4e3150 x2 : 000000070a4fe550 [ 31.196005][ C1] x1 : 000000070b4e3150 x0 : 0000000000000004 [ 31.197301][ C1] Call trace: [ 31.197882][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.198672][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.199415][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.200182][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.201362][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.202156][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.202946][ C1] gic_handle_irq+0x50/0xd0 [ 31.203647][ C1] el1_irq+0xb4/0x180 [ 31.204347][ C1] idr_alloc_cyclic+0x68/0xe4 [ 31.204973][ C1] __kernfs_new_node+0xa8/0x210 [ 31.205784][ C1] kernfs_new_node+0x48/0x70 [ 31.206571][ C1] __kernfs_create_file+0x30/0x160 [ 31.207378][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 31.208204][ C1] internal_create_group+0x104/0x3cc [ 31.208978][ C1] sysfs_create_group+0x18/0x24 [ 31.209744][ C1] blk_register_queue+0x94/0x220 [ 31.210524][ C1] __device_add_disk+0x328/0x490 [ 31.211835][ C1] device_add_disk+0x14/0x20 [ 31.212670][ C1] loop_add+0x1f4/0x260 [ 31.213344][ C1] loop_init+0x104/0x158 [ 31.214020][ C1] do_one_initcall+0x50/0x1b0 [ 31.214716][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.215529][ C1] kernel_init+0x14/0x118 [ 31.216282][ C1] ret_from_fork+0x10/0x34 [ 31.217007][ C1] ---[ end trace dc83b52b5dca1376 ]--- [ 31.218298][ C1] ------------[ cut here ]------------ [ 31.219040][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.220393][ C1] Modules linked in: [ 31.222387][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.223690][ C1] Hardware name: linux,dummy-virt (DT) [ 31.224437][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.225331][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.226063][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.226843][ C1] sp : ffff80001000be30 [ 31.227509][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.228574][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.229885][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.231282][ C1] x23: 0000000000000080 x22: 000000070d41ca10 [ 31.232514][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.233494][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 31.234571][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.235784][ C1] x15: 0000483fb6109270 x14: 0000000000000228 [ 31.236917][ C1] x13: 0000000000000001 x12: 000000000000002b [ 31.238026][ C1] x11: 0000000000000001 x10: 0000000000000228 [ 31.239929][ C1] x9 : 0000000002e295b1 x8 : 000000070c4c7d50 [ 31.241756][ C1] x7 : 7fffffffffffffff x6 : 000000070c4c7d50 [ 31.244125][ C1] x5 : 000000070c4c7d50 x4 : f6ff000003b55498 [ 31.245293][ C1] x3 : 000000070d4ac950 x2 : 000000070c4c7d50 [ 31.246685][ C1] x1 : 000000070d4ac950 x0 : 0000000000000002 [ 31.247800][ C1] Call trace: [ 31.248417][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.249220][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.250053][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.251289][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.252216][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.253889][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.254629][ C1] gic_handle_irq+0x50/0xd0 [ 31.255407][ C1] el1_irq+0xb4/0x180 [ 31.256127][ C1] idr_alloc_cyclic+0x68/0xe4 [ 31.256942][ C1] __kernfs_new_node+0xa8/0x210 [ 31.257780][ C1] kernfs_new_node+0x48/0x70 [ 31.258563][ C1] __kernfs_create_file+0x30/0x160 [ 31.259561][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 31.260397][ C1] internal_create_group+0x104/0x3cc [ 31.261709][ C1] sysfs_create_group+0x18/0x24 [ 31.262509][ C1] blk_register_queue+0x94/0x220 [ 31.263660][ C1] __device_add_disk+0x328/0x490 [ 31.264654][ C1] device_add_disk+0x14/0x20 [ 31.265399][ C1] loop_add+0x1f4/0x260 [ 31.266113][ C1] loop_init+0x104/0x158 [ 31.266871][ C1] do_one_initcall+0x50/0x1b0 [ 31.267662][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.268538][ C1] kernel_init+0x14/0x118 [ 31.269259][ C1] ret_from_fork+0x10/0x34 [ 31.270211][ C1] ---[ end trace dc83b52b5dca1377 ]--- [ 31.371790][ C1] ------------[ cut here ]------------ [ 31.372635][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.374270][ C1] Modules linked in: [ 31.374942][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.376484][ C1] Hardware name: linux,dummy-virt (DT) [ 31.377264][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.378248][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.379083][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.379948][ C1] sp : ffff80001000be30 [ 31.380587][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.382277][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.383438][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.384452][ C1] x23: 0000000000000080 x22: 00000007166b20e0 [ 31.385460][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.386631][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.387695][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.388825][ C1] x15: 0000000000000020 x14: ffffffffffffffff [ 31.389939][ C1] x13: f3ff0000045f93b8 x12: 0000000000000040 [ 31.391562][ C1] x11: faff000003400260 x10: faff000003400262 [ 31.392696][ C1] x9 : ffff8000127cbe78 x8 : 00000007163b7550 [ 31.393779][ C1] x7 : 7fffffffffffffff x6 : 00000007163b7550 [ 31.394795][ C1] x5 : 00000007163b7550 x4 : f6ff000003b55498 [ 31.395904][ C1] x3 : 000000071739c150 x2 : 00000007163b7550 [ 31.397050][ C1] x1 : 000000071739c150 x0 : 000000000000000a [ 31.398151][ C1] Call trace: [ 31.398692][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.399531][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.400409][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.401695][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.402505][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.403329][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.404067][ C1] gic_handle_irq+0x50/0xd0 [ 31.404729][ C1] el1_irq+0xb4/0x180 [ 31.405401][ C1] stack_trace_consume_entry+0x1c/0x70 [ 31.406246][ C1] stack_trace_save+0x50/0x80 [ 31.407068][ C1] kasan_save_stack+0x28/0x60 [ 31.407737][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.408526][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.409270][ C1] __kernfs_new_node+0x68/0x210 [ 31.409960][ C1] kernfs_new_node+0x48/0x70 [ 31.410616][ C1] __kernfs_create_file+0x30/0x160 [ 31.412285][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 31.413061][ C1] sysfs_merge_group+0x84/0x120 [ 31.413869][ C1] dpm_sysfs_add+0x100/0x130 [ 31.414698][ C1] device_add+0x2ec/0x7d0 [ 31.415380][ C1] device_create_groups_vargs+0x108/0x174 [ 31.416323][ C1] device_create+0x5c/0x8c [ 31.417028][ C1] bdi_register_va+0x80/0x214 [ 31.417791][ C1] bdi_register+0x58/0x80 [ 31.418530][ C1] __device_add_disk+0x40c/0x490 [ 31.419433][ C1] device_add_disk+0x14/0x20 [ 31.420219][ C1] loop_add+0x1f4/0x260 [ 31.421481][ C1] loop_init+0x104/0x158 [ 31.422203][ C1] do_one_initcall+0x50/0x1b0 [ 31.422923][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.423720][ C1] kernel_init+0x14/0x118 [ 31.424451][ C1] ret_from_fork+0x10/0x34 [ 31.425133][ C1] ---[ end trace dc83b52b5dca1378 ]--- [ 31.426677][ C1] ------------[ cut here ]------------ [ 31.427385][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.428813][ C1] Modules linked in: [ 31.429640][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.434287][ C1] Hardware name: linux,dummy-virt (DT) [ 31.435119][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.436081][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.436966][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.437824][ C1] sp : ffff80001000be30 [ 31.438506][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.439562][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.441315][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.442398][ C1] x23: 0000000000000080 x22: 0000000719b147c0 [ 31.443434][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.444503][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.445551][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.446650][ C1] x15: 0000856b673698d8 x14: 0000000000000148 [ 31.447725][ C1] x13: 0000000000000001 x12: 000000000000000f [ 31.448968][ C1] x11: 0000000000000001 x10: 0000000000000148 [ 31.450202][ C1] x9 : 0000000002df19b9 x8 : 0000000719365950 [ 31.451908][ C1] x7 : 7fffffffffffffff x6 : 0000000719365950 [ 31.453119][ C1] x5 : 0000000719365950 x4 : f6ff000003b55498 [ 31.454377][ C1] x3 : 000000071a34a550 x2 : 0000000719365950 [ 31.455412][ C1] x1 : 000000071a34a550 x0 : 0000000000000003 [ 31.456509][ C1] Call trace: [ 31.457101][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.457958][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.458802][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.459547][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.460456][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.461695][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.462494][ C1] gic_handle_irq+0x50/0xd0 [ 31.463591][ C1] el1_irq+0xb4/0x180 [ 31.464319][ C1] stack_trace_consume_entry+0x1c/0x70 [ 31.465110][ C1] stack_trace_save+0x50/0x80 [ 31.465935][ C1] kasan_save_stack+0x28/0x60 [ 31.466747][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.467484][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.468286][ C1] __kernfs_new_node+0x68/0x210 [ 31.469063][ C1] kernfs_new_node+0x48/0x70 [ 31.469824][ C1] __kernfs_create_file+0x30/0x160 [ 31.470625][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 31.472021][ C1] sysfs_merge_group+0x84/0x120 [ 31.472797][ C1] dpm_sysfs_add+0x100/0x130 [ 31.473526][ C1] device_add+0x2ec/0x7d0 [ 31.474248][ C1] device_create_groups_vargs+0x108/0x174 [ 31.475027][ C1] device_create+0x5c/0x8c [ 31.475762][ C1] bdi_register_va+0x80/0x214 [ 31.476561][ C1] bdi_register+0x58/0x80 [ 31.477339][ C1] __device_add_disk+0x40c/0x490 [ 31.478081][ C1] device_add_disk+0x14/0x20 [ 31.478788][ C1] loop_add+0x1f4/0x260 [ 31.479534][ C1] loop_init+0x104/0x158 [ 31.480265][ C1] do_one_initcall+0x50/0x1b0 [ 31.481555][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.482404][ C1] kernel_init+0x14/0x118 [ 31.483064][ C1] ret_from_fork+0x10/0x34 [ 31.483756][ C1] ---[ end trace dc83b52b5dca1379 ]--- [ 31.485004][ C1] ------------[ cut here ]------------ [ 31.485726][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.487016][ C1] Modules linked in: [ 31.487739][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.489082][ C1] Hardware name: linux,dummy-virt (DT) [ 31.489811][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.493865][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.494693][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.495465][ C1] sp : ffff80001000be30 [ 31.496107][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.497222][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.498377][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.499467][ C1] x23: 0000000000000080 x22: 000000071d275450 [ 31.502865][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.504046][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.505071][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.506156][ C1] x15: 000037d48631b852 x14: 00000000000003f0 [ 31.507238][ C1] x13: 0000000000000001 x12: 0000000000000037 [ 31.508343][ C1] x11: 0000000000000001 x10: 00000000000003f0 [ 31.509547][ C1] x9 : 0000000002e9b90c x8 : 000000071c313d50 [ 31.511737][ C1] x7 : 7fffffffffffffff x6 : 000000071c313d50 [ 31.513001][ C1] x5 : 000000071c313d50 x4 : f6ff000003b55498 [ 31.514237][ C1] x3 : 000000071d2f8950 x2 : 000000071c313d50 [ 31.515250][ C1] x1 : 000000071d2f8950 x0 : 0000000000000003 [ 31.516328][ C1] Call trace: [ 31.517227][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.517997][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.519573][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.521566][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.522905][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.523718][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.524501][ C1] gic_handle_irq+0x50/0xd0 [ 31.525838][ C1] el1_irq+0xb4/0x180 [ 31.526582][ C1] stack_trace_consume_entry+0x1c/0x70 [ 31.527390][ C1] stack_trace_save+0x50/0x80 [ 31.528611][ C1] kasan_save_stack+0x28/0x60 [ 31.529438][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.531718][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.532558][ C1] __kernfs_new_node+0x68/0x210 [ 31.533400][ C1] kernfs_new_node+0x48/0x70 [ 31.534871][ C1] __kernfs_create_file+0x30/0x160 [ 31.535676][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 31.537673][ C1] sysfs_merge_group+0x84/0x120 [ 31.538447][ C1] dpm_sysfs_add+0x100/0x130 [ 31.539252][ C1] device_add+0x2ec/0x7d0 [ 31.539999][ C1] device_create_groups_vargs+0x108/0x174 [ 31.541319][ C1] device_create+0x5c/0x8c [ 31.542623][ C1] bdi_register_va+0x80/0x214 [ 31.543377][ C1] bdi_register+0x58/0x80 [ 31.545191][ C1] __device_add_disk+0x40c/0x490 [ 31.546087][ C1] device_add_disk+0x14/0x20 [ 31.547257][ C1] loop_add+0x1f4/0x260 [ 31.548663][ C1] loop_init+0x104/0x158 [ 31.549392][ C1] do_one_initcall+0x50/0x1b0 [ 31.550110][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.551323][ C1] kernel_init+0x14/0x118 [ 31.552050][ C1] ret_from_fork+0x10/0x34 [ 31.552894][ C1] ---[ end trace dc83b52b5dca137a ]--- [ 31.654225][ C1] ------------[ cut here ]------------ [ 31.655027][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.656349][ C1] Modules linked in: [ 31.657076][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.658439][ C1] Hardware name: linux,dummy-virt (DT) [ 31.659179][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.660199][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.661600][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.662462][ C1] sp : ffff80001000be30 [ 31.663135][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.664225][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.665243][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.666300][ C1] x23: 0000000000000080 x22: 000000072740f570 [ 31.667443][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.668589][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.669719][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.671391][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 31.672558][ C1] x13: 0000000000078ea7 x12: 0000000000000040 [ 31.673678][ C1] x11: faff000003400260 x10: faff000003400262 [ 31.674733][ C1] x9 : ffff8000127cbe78 x8 : 00000007271e8150 [ 31.675758][ C1] x7 : 7fffffffffffffff x6 : 00000007271e8150 [ 31.676879][ C1] x5 : 00000007271e8150 x4 : f6ff000003b55498 [ 31.677879][ C1] x3 : 00000007281ccd50 x2 : 00000007271e8150 [ 31.678851][ C1] x1 : 00000007281ccd50 x0 : 000000000000000b [ 31.679938][ C1] Call trace: [ 31.680494][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.681723][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.682415][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.683105][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.683874][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.684797][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.685524][ C1] gic_handle_irq+0x50/0xd0 [ 31.686314][ C1] el1_irq+0xb4/0x180 [ 31.687005][ C1] unwind_frame+0x4c/0x180 [ 31.687774][ C1] stack_trace_save+0x50/0x80 [ 31.688551][ C1] kasan_save_stack+0x28/0x60 [ 31.689288][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.690104][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.691351][ C1] __d_alloc+0x2c/0x1f0 [ 31.692083][ C1] d_alloc+0x1c/0xa0 [ 31.692766][ C1] d_alloc_parallel+0x6c/0x4a0 [ 31.693475][ C1] __lookup_slow+0x5c/0x14c [ 31.694199][ C1] lookup_one_len+0x94/0xa4 [ 31.694907][ C1] start_creating.part.0+0x74/0x160 [ 31.695715][ C1] __debugfs_create_file+0x74/0x1fc [ 31.696520][ C1] debugfs_create_file+0x2c/0x40 [ 31.697268][ C1] debugfs_create_files+0x5c/0x80 [ 31.698037][ C1] blk_mq_debugfs_register_hctx+0x6c/0x160 [ 31.698840][ C1] blk_mq_debugfs_register+0x98/0x104 [ 31.699569][ C1] blk_register_queue+0xe4/0x220 [ 31.700312][ C1] __device_add_disk+0x328/0x490 [ 31.701863][ C1] device_add_disk+0x14/0x20 [ 31.702625][ C1] loop_add+0x1f4/0x260 [ 31.703259][ C1] loop_init+0x104/0x158 [ 31.703948][ C1] do_one_initcall+0x50/0x1b0 [ 31.704619][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.705313][ C1] kernel_init+0x14/0x118 [ 31.705990][ C1] ret_from_fork+0x10/0x34 [ 31.706663][ C1] ---[ end trace dc83b52b5dca137b ]--- [ 31.707958][ C1] ------------[ cut here ]------------ [ 31.708601][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.709738][ C1] Modules linked in: [ 31.710386][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.717527][ C1] Hardware name: linux,dummy-virt (DT) [ 31.718674][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.719654][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.722506][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.723667][ C1] sp : ffff80001000be30 [ 31.724829][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.727617][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.729438][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.731865][ C1] x23: 0000000000000080 x22: 000000072a74aa40 [ 31.733073][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.734166][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.737842][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.740077][ C1] x15: 000092e6d7c853a1 x14: 0000000000000080 [ 31.742296][ C1] x13: 0000000000000001 x12: 000000000000000b [ 31.744620][ C1] x11: 0000000000000001 x10: 0000000000000080 [ 31.745685][ C1] x9 : 0000000002dbf759 x8 : 000000072a196550 [ 31.748131][ C1] x7 : 7fffffffffffffff x6 : 000000072a196550 [ 31.749525][ C1] x5 : 000000072a196550 x4 : f6ff000003b55498 [ 31.753228][ C1] x3 : 000000072b17b150 x2 : 000000072a196550 [ 31.754900][ C1] x1 : 000000072b17b150 x0 : 0000000000000003 [ 31.755947][ C1] Call trace: [ 31.756551][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.757624][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.758839][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.759880][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.760917][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.761912][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.762744][ C1] gic_handle_irq+0x50/0xd0 [ 31.763662][ C1] el1_irq+0xb4/0x180 [ 31.764709][ C1] unwind_frame+0x4c/0x180 [ 31.765615][ C1] stack_trace_save+0x50/0x80 [ 31.766381][ C1] kasan_save_stack+0x28/0x60 [ 31.767208][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.768610][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.769508][ C1] __d_alloc+0x2c/0x1f0 [ 31.770277][ C1] d_alloc+0x1c/0xa0 [ 31.772071][ C1] d_alloc_parallel+0x6c/0x4a0 [ 31.773183][ C1] __lookup_slow+0x5c/0x14c [ 31.774134][ C1] lookup_one_len+0x94/0xa4 [ 31.775035][ C1] start_creating.part.0+0x74/0x160 [ 31.775891][ C1] __debugfs_create_file+0x74/0x1fc [ 31.778034][ C1] debugfs_create_file+0x2c/0x40 [ 31.781394][ C1] debugfs_create_files+0x5c/0x80 [ 31.782284][ C1] blk_mq_debugfs_register_hctx+0x6c/0x160 [ 31.783185][ C1] blk_mq_debugfs_register+0x98/0x104 [ 31.784043][ C1] blk_register_queue+0xe4/0x220 [ 31.784931][ C1] __device_add_disk+0x328/0x490 [ 31.786018][ C1] device_add_disk+0x14/0x20 [ 31.788177][ C1] loop_add+0x1f4/0x260 [ 31.789517][ C1] loop_init+0x104/0x158 [ 31.791604][ C1] do_one_initcall+0x50/0x1b0 [ 31.795142][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.796034][ C1] kernel_init+0x14/0x118 [ 31.798871][ C1] ret_from_fork+0x10/0x34 [ 31.800759][ C1] ---[ end trace dc83b52b5dca137c ]--- [ 31.802960][ C1] ------------[ cut here ]------------ [ 31.803814][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.805061][ C1] Modules linked in: [ 31.806543][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.807895][ C1] Hardware name: linux,dummy-virt (DT) [ 31.808715][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.811751][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.812879][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.813694][ C1] sp : ffff80001000be30 [ 31.815068][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.816327][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.817338][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.818356][ C1] x23: 0000000000000080 x22: 00000007301966f0 [ 31.822402][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.823906][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.827107][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.828528][ C1] x15: 00001a0c2d45f9cd x14: 0000000000000338 [ 31.830553][ C1] x13: 0000000000000001 x12: 000000000000005a [ 31.832298][ C1] x11: 0000000000000001 x10: 0000000000000338 [ 31.833659][ C1] x9 : 0000000002e6d9c0 x8 : 00000007300f2d50 [ 31.835000][ C1] x7 : 7fffffffffffffff x6 : 00000007300f2d50 [ 31.836245][ C1] x5 : 00000007300f2d50 x4 : f6ff000003b55498 [ 31.837247][ C1] x3 : 00000007310d7950 x2 : 00000007300f2d50 [ 31.838294][ C1] x1 : 00000007310d7950 x0 : 0000000000000006 [ 31.839365][ C1] Call trace: [ 31.839954][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.840757][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.841653][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.842416][ C1] arch_timer_handler_phys+0x38/0x50 [ 31.843192][ C1] handle_percpu_devid_irq+0x84/0x150 [ 31.844027][ C1] __handle_domain_irq+0x7c/0xe0 [ 31.844762][ C1] gic_handle_irq+0x50/0xd0 [ 31.845508][ C1] el1_irq+0xb4/0x180 [ 31.846218][ C1] unwind_frame+0x4c/0x180 [ 31.846952][ C1] stack_trace_save+0x50/0x80 [ 31.847711][ C1] kasan_save_stack+0x28/0x60 [ 31.848680][ C1] __kasan_slab_alloc+0xd8/0x120 [ 31.849484][ C1] kmem_cache_alloc+0x1bc/0x33c [ 31.850342][ C1] __d_alloc+0x2c/0x1f0 [ 31.851178][ C1] d_alloc+0x1c/0xa0 [ 31.851915][ C1] d_alloc_parallel+0x6c/0x4a0 [ 31.852698][ C1] __lookup_slow+0x5c/0x14c [ 31.853408][ C1] lookup_one_len+0x94/0xa4 [ 31.854232][ C1] start_creating.part.0+0x74/0x160 [ 31.854976][ C1] __debugfs_create_file+0x74/0x1fc [ 31.856222][ C1] debugfs_create_file+0x2c/0x40 [ 31.856967][ C1] debugfs_create_files+0x5c/0x80 [ 31.857730][ C1] blk_mq_debugfs_register_hctx+0x6c/0x160 [ 31.858563][ C1] blk_mq_debugfs_register+0x98/0x104 [ 31.859318][ C1] blk_register_queue+0xe4/0x220 [ 31.860096][ C1] __device_add_disk+0x328/0x490 [ 31.860882][ C1] device_add_disk+0x14/0x20 [ 31.861735][ C1] loop_add+0x1f4/0x260 [ 31.862424][ C1] loop_init+0x104/0x158 [ 31.863107][ C1] do_one_initcall+0x50/0x1b0 [ 31.865318][ C1] kernel_init_freeable+0x1d8/0x240 [ 31.866516][ C1] kernel_init+0x14/0x118 [ 31.867246][ C1] ret_from_fork+0x10/0x34 [ 31.868041][ C1] ---[ end trace dc83b52b5dca137d ]--- [ 31.970829][ C1] ------------[ cut here ]------------ [ 31.972622][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 31.974603][ C1] Modules linked in: [ 31.976308][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 31.978212][ C1] Hardware name: linux,dummy-virt (DT) [ 31.978804][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 31.979498][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 31.980150][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 31.980838][ C1] sp : ffff80001000be30 [ 31.981363][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 31.982478][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 31.983477][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 31.985819][ C1] x23: 0000000000000080 x22: 000000073a1e0040 [ 31.986629][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 31.987362][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 31.988261][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 31.989244][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 31.990552][ C1] x13: 0000571cffffa8e3 x12: 015c7a1efea385e1 [ 31.991467][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 31.992371][ C1] x9 : 0000000000000400 x8 : 0000000739fe2550 [ 31.993188][ C1] x7 : 7fffffffffffffff x6 : 0000000739fe2550 [ 31.994055][ C1] x5 : 0000000739fe2550 x4 : f6ff000003b55498 [ 31.995002][ C1] x3 : 000000073afc7150 x2 : 0000000739fe2550 [ 31.995906][ C1] x1 : 000000073afc7150 x0 : 000000000000000a [ 31.996822][ C1] Call trace: [ 31.997280][ C1] vkms_vblank_simulate+0x120/0x130 [ 31.998063][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 31.998849][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 31.999505][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.000332][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.001125][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.001689][ C1] gic_handle_irq+0x50/0xd0 [ 32.002303][ C1] el1_irq+0xb4/0x180 [ 32.002822][ C1] unwind_frame+0x1c/0x180 [ 32.003380][ C1] stack_trace_save+0x50/0x80 [ 32.003981][ C1] kasan_save_stack+0x28/0x60 [ 32.004587][ C1] __kasan_slab_alloc+0xd8/0x120 [ 32.005219][ C1] kmem_cache_alloc+0x1bc/0x33c [ 32.005823][ C1] security_inode_alloc+0x2c/0x94 [ 32.006461][ C1] inode_init_always+0xc4/0x1d4 [ 32.007116][ C1] alloc_inode+0x3c/0xdc [ 32.007723][ C1] new_inode+0x1c/0xb4 [ 32.008511][ C1] __debugfs_create_file+0x90/0x1fc [ 32.009150][ C1] debugfs_create_file+0x2c/0x40 [ 32.009727][ C1] debugfs_create_files+0x5c/0x80 [ 32.010269][ C1] blk_mq_debugfs_register_rqos+0x90/0xcc [ 32.011133][ C1] wbt_init+0x124/0x1d0 [ 32.011786][ C1] wbt_enable_default+0x48/0x80 [ 32.012321][ C1] blk_register_queue+0x120/0x220 [ 32.012884][ C1] __device_add_disk+0x328/0x490 [ 32.013424][ C1] device_add_disk+0x14/0x20 [ 32.013861][ C1] loop_add+0x1f4/0x260 [ 32.014251][ C1] loop_init+0x104/0x158 [ 32.014681][ C1] do_one_initcall+0x50/0x1b0 [ 32.015139][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.015764][ C1] kernel_init+0x14/0x118 [ 32.016356][ C1] ret_from_fork+0x10/0x34 [ 32.017033][ C1] ---[ end trace dc83b52b5dca137e ]--- [ 32.017944][ C1] ------------[ cut here ]------------ [ 32.018375][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.019346][ C1] Modules linked in: [ 32.019780][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.020846][ C1] Hardware name: linux,dummy-virt (DT) [ 32.021642][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.022532][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.023375][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.024025][ C1] sp : ffff80001000be30 [ 32.024512][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.025273][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.026024][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.026822][ C1] x23: 0000000000000080 x22: 000000073ced83b0 [ 32.027496][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.028254][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 32.029081][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.029757][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 32.030427][ C1] x13: 000043d5335290cd x12: 010f589e795ba0c7 [ 32.031480][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 32.032298][ C1] x9 : 0000000000000400 x8 : 000000073bfabd50 [ 32.033223][ C1] x7 : 7fffffffffffffff x6 : 000000073bfabd50 [ 32.034197][ C1] x5 : 000000073bfabd50 x4 : f6ff000003b55498 [ 32.036848][ C1] x3 : 000000073cf90950 x2 : 000000073bfabd50 [ 32.038085][ C1] x1 : 000000073cf90950 x0 : 0000000000000002 [ 32.039222][ C1] Call trace: [ 32.039786][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.040583][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.041529][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.042305][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.043033][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.043906][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.044699][ C1] gic_handle_irq+0x50/0xd0 [ 32.045417][ C1] el1_irq+0xb4/0x180 [ 32.046193][ C1] unwind_frame+0x1c/0x180 [ 32.047042][ C1] stack_trace_save+0x50/0x80 [ 32.049093][ C1] kasan_save_stack+0x28/0x60 [ 32.049863][ C1] __kasan_slab_alloc+0xd8/0x120 [ 32.050591][ C1] kmem_cache_alloc+0x1bc/0x33c [ 32.051658][ C1] security_inode_alloc+0x2c/0x94 [ 32.052438][ C1] inode_init_always+0xc4/0x1d4 [ 32.053226][ C1] alloc_inode+0x3c/0xdc [ 32.053843][ C1] new_inode+0x1c/0xb4 [ 32.054494][ C1] __debugfs_create_file+0x90/0x1fc [ 32.056531][ C1] debugfs_create_file+0x2c/0x40 [ 32.057785][ C1] debugfs_create_files+0x5c/0x80 [ 32.058570][ C1] blk_mq_debugfs_register_rqos+0x90/0xcc [ 32.059403][ C1] wbt_init+0x124/0x1d0 [ 32.060135][ C1] wbt_enable_default+0x48/0x80 [ 32.061350][ C1] blk_register_queue+0x120/0x220 [ 32.062231][ C1] __device_add_disk+0x328/0x490 [ 32.063261][ C1] device_add_disk+0x14/0x20 [ 32.064117][ C1] loop_add+0x1f4/0x260 [ 32.065367][ C1] loop_init+0x104/0x158 [ 32.066600][ C1] do_one_initcall+0x50/0x1b0 [ 32.068469][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.069304][ C1] kernel_init+0x14/0x118 [ 32.070129][ C1] ret_from_fork+0x10/0x34 [ 32.071122][ C1] ---[ end trace dc83b52b5dca137f ]--- [ 32.072087][ C1] ------------[ cut here ]------------ [ 32.072774][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.073982][ C1] Modules linked in: [ 32.074671][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.076018][ C1] Hardware name: linux,dummy-virt (DT) [ 32.076767][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.079785][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.080644][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.081846][ C1] sp : ffff80001000be30 [ 32.088612][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.089724][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.090962][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.092082][ C1] x23: 0000000000000080 x22: 0000000740298350 [ 32.093361][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.094369][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 32.095737][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.096792][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 32.097830][ C1] x13: 000043d5335290cd x12: 010f589e795ba0c7 [ 32.098854][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 32.099959][ C1] x9 : ffff800012a0e000 x8 : 000000073ff3ed50 [ 32.101558][ C1] x7 : 7fffffffffffffff x6 : 000000073ff3ed50 [ 32.102777][ C1] x5 : 000000073ff3ed50 x4 : f6ff000003b55498 [ 32.103932][ C1] x3 : 0000000740f23950 x2 : 000000073ff3ed50 [ 32.106401][ C1] x1 : 0000000740f23950 x0 : 0000000000000004 [ 32.108410][ C1] Call trace: [ 32.109014][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.110092][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.111490][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.112569][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.113483][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.114219][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.114961][ C1] gic_handle_irq+0x50/0xd0 [ 32.115623][ C1] el1_irq+0xb4/0x180 [ 32.116456][ C1] unwind_frame+0x1c/0x180 [ 32.117390][ C1] stack_trace_save+0x50/0x80 [ 32.118270][ C1] kasan_save_stack+0x28/0x60 [ 32.119184][ C1] __kasan_slab_alloc+0xd8/0x120 [ 32.119912][ C1] kmem_cache_alloc+0x1bc/0x33c [ 32.120612][ C1] security_inode_alloc+0x2c/0x94 [ 32.122431][ C1] inode_init_always+0xc4/0x1d4 [ 32.123269][ C1] alloc_inode+0x3c/0xdc [ 32.123994][ C1] new_inode+0x1c/0xb4 [ 32.124727][ C1] __debugfs_create_file+0x90/0x1fc [ 32.125640][ C1] debugfs_create_file+0x2c/0x40 [ 32.127185][ C1] debugfs_create_files+0x5c/0x80 [ 32.128040][ C1] blk_mq_debugfs_register_rqos+0x90/0xcc [ 32.128895][ C1] wbt_init+0x124/0x1d0 [ 32.129664][ C1] wbt_enable_default+0x48/0x80 [ 32.132503][ C1] blk_register_queue+0x120/0x220 [ 32.133421][ C1] __device_add_disk+0x328/0x490 [ 32.134295][ C1] device_add_disk+0x14/0x20 [ 32.136784][ C1] loop_add+0x1f4/0x260 [ 32.137603][ C1] loop_init+0x104/0x158 [ 32.138856][ C1] do_one_initcall+0x50/0x1b0 [ 32.140089][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.141640][ C1] kernel_init+0x14/0x118 [ 32.142518][ C1] ret_from_fork+0x10/0x34 [ 32.143608][ C1] ---[ end trace dc83b52b5dca1380 ]--- [ 32.245373][ C1] ------------[ cut here ]------------ [ 32.246311][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.248665][ C1] Modules linked in: [ 32.250081][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.251827][ C1] Hardware name: linux,dummy-virt (DT) [ 32.252528][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.253359][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.254097][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.254820][ C1] sp : ffff80001000be30 [ 32.255381][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.256447][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.257477][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.258508][ C1] x23: 0000000000000080 x22: 000000074a7d0cd0 [ 32.259528][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.260580][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 32.261610][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.262790][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.263812][ C1] x13: 0000000000078e0f x12: 0000000000000040 [ 32.264866][ C1] x11: faff000003400260 x10: faff000003400262 [ 32.265898][ C1] x9 : ffff8000127cbe78 x8 : 0000000749e2e550 [ 32.266913][ C1] x7 : 7fffffffffffffff x6 : 0000000749e2e550 [ 32.267960][ C1] x5 : 0000000749e2e550 x4 : f6ff000003b55498 [ 32.268985][ C1] x3 : 000000074ae13150 x2 : 0000000749e2e550 [ 32.270005][ C1] x1 : 000000074ae13150 x0 : 000000000000000a [ 32.271152][ C1] Call trace: [ 32.271756][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.272680][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.273606][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.276225][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.277077][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.277878][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.278640][ C1] gic_handle_irq+0x50/0xd0 [ 32.279552][ C1] el1_irq+0xb4/0x180 [ 32.280793][ C1] kernfs_link_sibling+0x28/0x120 [ 32.282152][ C1] kernfs_add_one+0x9c/0x12c [ 32.283440][ C1] __kernfs_create_file+0x90/0x160 [ 32.284546][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 32.285117][ C1] internal_create_group+0x104/0x3cc [ 32.285599][ C1] sysfs_create_group+0x18/0x24 [ 32.286148][ C1] blk_register_queue+0x94/0x220 [ 32.286767][ C1] __device_add_disk+0x328/0x490 [ 32.287403][ C1] device_add_disk+0x14/0x20 [ 32.287992][ C1] loop_add+0x1f4/0x260 [ 32.288572][ C1] loop_init+0x104/0x158 [ 32.289015][ C1] do_one_initcall+0x50/0x1b0 [ 32.289462][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.290097][ C1] kernel_init+0x14/0x118 [ 32.290595][ C1] ret_from_fork+0x10/0x34 [ 32.292348][ C1] ---[ end trace dc83b52b5dca1381 ]--- [ 32.293171][ C1] ------------[ cut here ]------------ [ 32.293644][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.294528][ C1] Modules linked in: [ 32.295006][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.296057][ C1] Hardware name: linux,dummy-virt (DT) [ 32.296657][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.297379][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.298074][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.298781][ C1] sp : ffff80001000be30 [ 32.299325][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.300214][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.301602][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.302550][ C1] x23: 0000000000000080 x22: 000000074d579350 [ 32.303476][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.304567][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 32.305573][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.306619][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.307634][ C1] x13: ffff8000126b7000 x12: ffff80001292c000 [ 32.308711][ C1] x11: faff000003400260 x10: 0000000000000001 [ 32.309765][ C1] x9 : 0000000000000400 x8 : 000000074cddc950 [ 32.312026][ C1] x7 : 7fffffffffffffff x6 : 000000074cddc950 [ 32.313047][ C1] x5 : 000000074cddc950 x4 : f6ff000003b55498 [ 32.314042][ C1] x3 : 000000074ddc1550 x2 : 000000074cddc950 [ 32.315037][ C1] x1 : 000000074ddc1550 x0 : 0000000000000003 [ 32.316070][ C1] Call trace: [ 32.316581][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.317342][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.318103][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.318818][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.319571][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.320367][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.321904][ C1] gic_handle_irq+0x50/0xd0 [ 32.322612][ C1] el1_irq+0xb4/0x180 [ 32.323250][ C1] kernfs_link_sibling+0x28/0x120 [ 32.323975][ C1] kernfs_add_one+0x9c/0x12c [ 32.324442][ C1] __kernfs_create_file+0x90/0x160 [ 32.325081][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 32.325888][ C1] internal_create_group+0x104/0x3cc [ 32.326474][ C1] sysfs_create_group+0x18/0x24 [ 32.327049][ C1] blk_register_queue+0x94/0x220 [ 32.327566][ C1] __device_add_disk+0x328/0x490 [ 32.328083][ C1] device_add_disk+0x14/0x20 [ 32.328545][ C1] loop_add+0x1f4/0x260 [ 32.329022][ C1] loop_init+0x104/0x158 [ 32.329497][ C1] do_one_initcall+0x50/0x1b0 [ 32.329965][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.330472][ C1] kernel_init+0x14/0x118 [ 32.331868][ C1] ret_from_fork+0x10/0x34 [ 32.332498][ C1] ---[ end trace dc83b52b5dca1382 ]--- [ 32.333740][ C1] ------------[ cut here ]------------ [ 32.334453][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.336157][ C1] Modules linked in: [ 32.336915][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.338317][ C1] Hardware name: linux,dummy-virt (DT) [ 32.339089][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.340135][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.341784][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.342559][ C1] sp : ffff80001000be30 [ 32.343162][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.344286][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.345383][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.346459][ C1] x23: 0000000000000080 x22: 000000074fbf8e70 [ 32.347579][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.348719][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 32.349861][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.352293][ C1] x15: 0000000000000002 x14: 000000000000ba7e [ 32.353415][ C1] x13: 00004ce27cccebe6 x12: 01338d3e2f4619ce [ 32.354526][ C1] x11: 000000000000b67e x10: 0000000000000001 [ 32.355677][ C1] x9 : 0000000000000400 x8 : 000000074eda6150 [ 32.356859][ C1] x7 : 7fffffffffffffff x6 : 000000074eda6150 [ 32.357997][ C1] x5 : 000000074eda6150 x4 : f6ff000003b55498 [ 32.359109][ C1] x3 : 000000074fd8ad50 x2 : 000000074eda6150 [ 32.360277][ C1] x1 : 000000074fd8ad50 x0 : 0000000000000002 [ 32.362123][ C1] Call trace: [ 32.362748][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.363527][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.364430][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.365278][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.366122][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.366968][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.367800][ C1] gic_handle_irq+0x50/0xd0 [ 32.368642][ C1] el1_irq+0xb4/0x180 [ 32.369393][ C1] kernfs_link_sibling+0x28/0x120 [ 32.370215][ C1] kernfs_add_one+0x9c/0x12c [ 32.372604][ C1] __kernfs_create_file+0x90/0x160 [ 32.373423][ C1] sysfs_add_file_mode_ns+0xa4/0x1a4 [ 32.374215][ C1] internal_create_group+0x104/0x3cc [ 32.375064][ C1] sysfs_create_group+0x18/0x24 [ 32.375912][ C1] blk_register_queue+0x94/0x220 [ 32.376949][ C1] __device_add_disk+0x328/0x490 [ 32.377791][ C1] device_add_disk+0x14/0x20 [ 32.378583][ C1] loop_add+0x1f4/0x260 [ 32.379353][ C1] loop_init+0x104/0x158 [ 32.380154][ C1] do_one_initcall+0x50/0x1b0 [ 32.381673][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.382447][ C1] kernel_init+0x14/0x118 [ 32.383122][ C1] ret_from_fork+0x10/0x34 [ 32.383901][ C1] ---[ end trace dc83b52b5dca1383 ]--- [ 32.485234][ C1] ------------[ cut here ]------------ [ 32.486067][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.487437][ C1] Modules linked in: [ 32.488226][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.489595][ C1] Hardware name: linux,dummy-virt (DT) [ 32.490371][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.491297][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.492701][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.493527][ C1] sp : ffff80001000be30 [ 32.494172][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.495353][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.496585][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.497770][ C1] x23: 0000000000000080 x22: 0000000758c8d3f0 [ 32.498924][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.500145][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 32.501208][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.502309][ C1] x15: 0000023d48c7e630 x14: 0000000000000345 [ 32.503425][ C1] x13: 0000000000000000 x12: 0000000000000040 [ 32.504629][ C1] x11: faff000003400260 x10: faff000003400262 [ 32.505765][ C1] x9 : ffff8000127cbe78 x8 : 0000000757cb0d50 [ 32.506923][ C1] x7 : 7fffffffffffffff x6 : 0000000757cb0d50 [ 32.518176][ C1] x5 : 0000000757cb0d50 x4 : f6ff000003b55498 [ 32.519363][ C1] x3 : 0000000758c95950 x2 : 0000000757cb0d50 [ 32.520481][ C1] x1 : 0000000758c95950 x0 : 0000000000000009 [ 32.524324][ C1] Call trace: [ 32.524963][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.525775][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.526504][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.527241][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.528082][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.528962][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.530716][ C1] gic_handle_irq+0x50/0xd0 [ 32.532840][ C1] el1_irq+0xb4/0x180 [ 32.534441][ C1] up_write+0x0/0x27c [ 32.535129][ C1] bdi_register_va+0xec/0x214 [ 32.535885][ C1] bdi_register+0x58/0x80 [ 32.536591][ C1] __device_add_disk+0x40c/0x490 [ 32.537356][ C1] device_add_disk+0x14/0x20 [ 32.538092][ C1] loop_add+0x1f4/0x260 [ 32.538825][ C1] loop_init+0x104/0x158 [ 32.539557][ C1] do_one_initcall+0x50/0x1b0 [ 32.540337][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.542655][ C1] kernel_init+0x14/0x118 [ 32.543397][ C1] ret_from_fork+0x10/0x34 [ 32.544181][ C1] ---[ end trace dc83b52b5dca1384 ]--- [ 32.545440][ C1] ------------[ cut here ]------------ [ 32.546144][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.547444][ C1] Modules linked in: [ 32.548230][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.549560][ C1] Hardware name: linux,dummy-virt (DT) [ 32.550324][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.552040][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.552915][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.553745][ C1] sp : ffff80001000be30 [ 32.554355][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.555499][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.556585][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.557683][ C1] x23: 0000000000000080 x22: 000000075c5fd4d0 [ 32.558784][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.559915][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 32.562349][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.563770][ C1] x15: 00002f175216b4f0 x14: 0000000000000111 [ 32.566191][ C1] x13: 0000000000000001 x12: 000000000000003f [ 32.567330][ C1] x11: 0000000000000001 x10: 0000000000000111 [ 32.568580][ C1] x9 : 0000000002de3f62 x8 : 000000075bc43d50 [ 32.569736][ C1] x7 : 7fffffffffffffff x6 : 000000075bc43d50 [ 32.570966][ C1] x5 : 000000075bc43d50 x4 : f6ff000003b55498 [ 32.572145][ C1] x3 : 000000075cc28950 x2 : 000000075bc43d50 [ 32.573275][ C1] x1 : 000000075cc28950 x0 : 0000000000000004 [ 32.574357][ C1] Call trace: [ 32.574945][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.575802][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.576650][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.577479][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.578311][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.579086][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.579904][ C1] gic_handle_irq+0x50/0xd0 [ 32.580667][ C1] el1_irq+0xb4/0x180 [ 32.582799][ C1] up_write+0x0/0x27c [ 32.583465][ C1] bdi_register_va+0xec/0x214 [ 32.584239][ C1] bdi_register+0x58/0x80 [ 32.584971][ C1] __device_add_disk+0x40c/0x490 [ 32.585778][ C1] device_add_disk+0x14/0x20 [ 32.586540][ C1] loop_add+0x1f4/0x260 [ 32.587272][ C1] loop_init+0x104/0x158 [ 32.588034][ C1] do_one_initcall+0x50/0x1b0 [ 32.588827][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.589641][ C1] kernel_init+0x14/0x118 [ 32.590381][ C1] ret_from_fork+0x10/0x34 [ 32.591703][ C1] ---[ end trace dc83b52b5dca1385 ]--- [ 32.592934][ C1] ------------[ cut here ]------------ [ 32.593608][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.594819][ C1] Modules linked in: [ 32.595533][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.596837][ C1] Hardware name: linux,dummy-virt (DT) [ 32.597560][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.598465][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.599256][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.600061][ C1] sp : ffff80001000be30 [ 32.600664][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.604317][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.605424][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.606525][ C1] x23: 0000000000000080 x22: 000000075f31a290 [ 32.607663][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.608788][ C1] x19: f6ff000003b55498 x18: 00000000fffffffb [ 32.609918][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.611182][ C1] x15: 00004540e8bb233f x14: 0000000000000287 [ 32.612389][ C1] x13: 0000000000000001 x12: 000000000000002d [ 32.613438][ C1] x11: 0000000000000001 x10: 0000000000000287 [ 32.614521][ C1] x9 : 0000000002e4126c x8 : 000000075ebf2150 [ 32.615585][ C1] x7 : 7fffffffffffffff x6 : 000000075ebf2150 [ 32.616675][ C1] x5 : 000000075ebf2150 x4 : f6ff000003b55498 [ 32.617768][ C1] x3 : 000000075fbd6d50 x2 : 000000075ebf2150 [ 32.618860][ C1] x1 : 000000075fbd6d50 x0 : 0000000000000003 [ 32.619984][ C1] Call trace: [ 32.620514][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.621410][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.622188][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.622986][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.623802][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.624562][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.625340][ C1] gic_handle_irq+0x50/0xd0 [ 32.626146][ C1] el1_irq+0xb4/0x180 [ 32.626827][ C1] up_write+0x0/0x27c [ 32.627519][ C1] bdi_register_va+0xec/0x214 [ 32.628290][ C1] bdi_register+0x58/0x80 [ 32.629017][ C1] __device_add_disk+0x40c/0x490 [ 32.629755][ C1] device_add_disk+0x14/0x20 [ 32.630494][ C1] loop_add+0x1f4/0x260 [ 32.631309][ C1] loop_init+0x104/0x158 [ 32.632072][ C1] do_one_initcall+0x50/0x1b0 [ 32.632880][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.633646][ C1] kernel_init+0x14/0x118 [ 32.634335][ C1] ret_from_fork+0x10/0x34 [ 32.635009][ C1] ---[ end trace dc83b52b5dca1386 ]--- [ 32.736293][ C1] ------------[ cut here ]------------ [ 32.737133][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x120/0x130 [ 32.738653][ C1] Modules linked in: [ 32.740364][ C1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 5.12.0-rc7-syzkaller-00053-g7e25f40eab52 #0 [ 32.745363][ C1] Hardware name: linux,dummy-virt (DT) [ 32.747428][ C1] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) [ 32.749917][ C1] pc : vkms_vblank_simulate+0x120/0x130 [ 32.754246][ C1] lr : vkms_vblank_simulate+0x3c/0x130 [ 32.755238][ C1] sp : ffff80001000be30 [ 32.755916][ C1] x29: ffff80001000be30 x28: ffff00007fbd4e00 [ 32.757003][ C1] x27: ffff00007fbd4e40 x26: ffff800010800d10 [ 32.758097][ C1] x25: 0000000000000000 x24: 0000000000000001 [ 32.759152][ C1] x23: 0000000000000080 x22: 0000000767bfcdc0 [ 32.760321][ C1] x21: 0000000000fe4c00 x20: f6ff000003b54628 [ 32.771520][ C1] x19: f6ff000003b55498 x18: 00000000fffffffe [ 32.772656][ C1] x17: 0000000000000001 x16: 0000000000000019 [ 32.773673][ C1] x15: 0000000000000002 x14: 0000000000000001 [ 32.774692][ C1] x13: 0000000000078d9f x12: 0000000000000040 [ 32.775777][ C1] x11: faff000003400260 x10: faff000003400262 [ 32.776969][ C1] x9 : ffff8000127cbe78 x8 : 0000000767afcd50 [ 32.778140][ C1] x7 : 7fffffffffffffff x6 : 0000000767afcd50 [ 32.779302][ C1] x5 : 0000000767afcd50 x4 : f6ff000003b55498 [ 32.780505][ C1] x3 : 0000000768ae1950 x2 : 0000000767afcd50 [ 32.781704][ C1] x1 : 0000000768ae1950 x0 : 0000000000000009 [ 32.782873][ C1] Call trace: [ 32.783449][ C1] vkms_vblank_simulate+0x120/0x130 [ 32.792734][ C1] __hrtimer_run_queues+0x140/0x1e0 [ 32.795736][ C1] hrtimer_interrupt+0xe8/0x2c0 [ 32.798581][ C1] arch_timer_handler_phys+0x38/0x50 [ 32.801217][ C1] handle_percpu_devid_irq+0x84/0x150 [ 32.803329][ C1] __handle_domain_irq+0x7c/0xe0 [ 32.805714][ C1] gic_handle_irq+0x50/0xd0 [ 32.808280][ C1] el1_irq+0xb4/0x180 [ 32.810334][ C1] __kasan_alloc_pages+0xc8/0xf0 [ 32.812924][ C1] __alloc_pages_nodemask+0x164/0xcb0 [ 32.814140][ C1] blk_mq_alloc_rqs+0x114/0x27c [ 32.816441][ C1] blk_mq_init_sched+0xa4/0x310 [ 32.819043][ C1] elevator_init_mq+0xd4/0x160 [ 32.821604][ C1] __device_add_disk+0x30c/0x490 [ 32.823519][ C1] device_add_disk+0x14/0x20 [ 32.825467][ C1] loop_add+0x1f4/0x260 [ 32.827530][ C1] loop_init+0x104/0x158 [ 32.829627][ C1] do_one_initcall+0x50/0x1b0 [ 32.830372][ C1] kernel_init_freeable+0x1d8/0x240 [ 32.831153][ C1] kernel_init+0x14/0x118 [ 32.831879][ C1] ret_from_fork+0x10/0x34 [ 32.834138][ C1] ---[ end trace dc83b52b5dca1387 ]---