failed to run ["ssh" "-p" "29506" "-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 29506 timed out [ 0.000000][ T0] Booting Linux on physical CPU 0x0000000000 [0x411fd070] [ 0.000000][ T0] Linux version 5.19.0-rc1-syzkaller-00243-ga32e7ea36235 (syzkaller@syzkaller) (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #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 0xbfc14d00-0xbfc17fff] [ 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 0x00000000bba00000 [ 0.000000][ T0] kasan: KernelAddressSanitizer initialized (generic) [ 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 31 pages/cpu s87304 r8192 d31480 u126976 [ 0.000000][ T0] Detected PIPT I-cache on CPU0 [ 0.000000][ T0] CPU features: detected: Spectre-v2 [ 0.000000][ T0] CPU features: detected: Spectre-v4 [ 0.000000][ T0] CPU features: detected: Spectre-BHB [ 0.000000][ T0] CPU features: detected: ARM erratum 834220 [ 0.000000][ T0] CPU features: detected: ARM erratum 832075 [ 0.000000][ T0] CPU features: detected: ARM errata 1165522, 1319367, or 1530923 [ 0.000000][ T0] Fallback order for Node 0: 0 [ 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] Stack Depot early init allocating hash table with memblock_alloc, 8388608 bytes [ 0.000000][ T0] Memory: 1582788K/2097152K available (74304K kernel code, 22072K rwdata, 19852K rodata, 1984K init, 32253K bss, 481596K reserved, 32768K cma-reserved) [ 0.000000][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000][ T0] trace event string verifier disabled [ 0.000000][ T0] Running RCU self tests [ 0.000000][ T0] rcu: Preemptible hierarchical RCU implementation. [ 0.000000][ T0] rcu: RCU lockdep checking is enabled. [ 0.000000][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 0.000000][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 0.000000][ T0] rcu: RCU debug extended QS entry/exit. [ 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] Root IRQ handler: gic_handle_irq [ 0.000000][ T0] GIC: Using split EOI/Deactivate mode [ 0.000000][ T0] GICv2m: range[mem 0x08020000-0x08020fff], SPI[80:143] [ 0.000000][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000][ T0] arch_timer: cp15 timer(s) running at 62.50MHz (phys). [ 0.000000][ T0] clocksource: arch_sys_counter: mask: 0x1ffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns [ 0.000190][ T0] sched_clock: 57 bits at 63MHz, resolution 16ns, wraps every 4398046511096ns [ 0.026553][ T0] Console: colour dummy device 80x25 [ 0.027984][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.028095][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.028153][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.028205][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.028256][ T0] ... CLASSHASH_SIZE: 4096 [ 0.028306][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 0.028356][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 0.028406][ T0] ... CHAINHASH_SIZE: 131072 [ 0.028456][ T0] memory used by lock dependency info: 20657 kB [ 0.028509][ T0] memory used for stack traces: 8320 kB [ 0.028562][ T0] per task-struct memory footprint: 1920 bytes [ 0.033780][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) [ 0.034168][ T0] pid_max: default: 32768 minimum: 301 [ 0.038143][ T0] LSM: Security Framework initializing [ 0.041275][ T0] landlock: Up and running. [ 0.041373][ T0] Yama: becoming mindful. [ 0.042781][ T0] TOMOYO Linux initialized [ 0.044212][ T0] SELinux: Initializing. [ 0.053592][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.053835][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.239117][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 0.240268][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 0.248323][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 0.254527][ T1] Running RCU-tasks wait API self tests [ 0.432363][ T11] Callback from call_rcu_tasks_trace() invoked. [ 0.435022][ T1] rcu: Hierarchical SRCU implementation. [ 0.542739][ T1] EFI services will not be available. [ 0.567172][ T1] smp: Bringing up secondary CPUs ... [ 0.621556][ T0] Detected PIPT I-cache on CPU1 [ 0.624908][ T0] CPU1: Booted secondary processor 0x0000000001 [0x411fd070] [ 0.649631][ T1] smp: Brought up 1 node, 2 CPUs [ 0.649786][ T1] SMP: Total of 2 processors activated. [ 0.649917][ T1] CPU features: detected: 32-bit EL0 Support [ 0.649963][ T1] CPU features: detected: 32-bit EL1 Support [ 0.650094][ T1] CPU features: detected: CRC32 instructions [ 0.689446][ T1] CPU: All CPU(s) started at EL2 [ 0.693181][ T15] alternatives: patching kernel code [ 0.710079][ T10] Callback from call_rcu_tasks() invoked. [ 0.839120][ T1] devtmpfs: initialized [ 1.514275][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.515098][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.779446][ T1] DMI not present or invalid. [ 1.823680][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.937086][ T1] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations [ 1.948020][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations [ 1.959930][ T1] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations [ 1.964457][ T1] audit: initializing netlink subsys (disabled) [ 1.982254][ T25] audit: type=2000 audit(1.800:1): state=initialized audit_enabled=0 res=1 [ 2.052781][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.053024][ T1] thermal_sys: Registered thermal governor 'power_allocator' [ 2.058071][ T1] cpuidle: using governor menu [ 2.063580][ T1] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 2.068079][ T1] ASID allocator initialised with 65536 entries [ 2.069716][ T1] HugeTLB: can optimize 4095 vmemmap pages for hugepages-1048576kB [ 2.069951][ T1] HugeTLB: can optimize 127 vmemmap pages for hugepages-32768kB [ 2.070008][ T1] HugeTLB: can optimize 7 vmemmap pages for hugepages-2048kB [ 2.070087][ T1] HugeTLB: can optimize 0 vmemmap pages for hugepages-64kB [ 2.081609][ T1] Serial: AMBA PL011 UART driver [ 2.504263][ T1] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 14, base_baud = 0) is a PL011 rev1 [ 2.522410][ T1] printk: console [ttyAMA0] enabled [ 2.523977][ T27] printk: console [ttyAMA0] printing thread started [ 5.086612][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 5.087172][ T1] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages [ 5.087227][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 5.087269][ T1] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages [ 5.476341][ T1] raid6: neonx8 gen() 589 MB/s [ 5.664380][ T1] raid6: neonx4 gen() 507 MB/s [ 5.846253][ T1] raid6: neonx2 gen() 629 MB/s [ 6.028411][ T1] raid6: neonx1 gen() 491 MB/s [ 6.209981][ T1] raid6: int64x8 gen() 427 MB/s [ 6.394490][ T1] raid6: int64x4 gen() 523 MB/s [ 6.577094][ T1] raid6: int64x2 gen() 486 MB/s [ 6.764818][ T1] raid6: int64x1 gen() 462 MB/s [ 6.765264][ T1] raid6: using algorithm neonx2 gen() 629 MB/s [ 6.948618][ T1] raid6: .... xor() 253 MB/s, rmw enabled [ 6.949000][ T1] raid6: using neon recovery algorithm [ 6.978431][ T1] ACPI: Interpreter disabled. [ 7.001826][ T1] iommu: Default domain type: Translated [ 7.001995][ T1] iommu: DMA domain TLB invalidation policy: strict mode [ 7.061164][ T1] SCSI subsystem initialized [ 7.111472][ T1] usbcore: registered new interface driver usbfs [ 7.114949][ T1] usbcore: registered new interface driver hub [ 7.118571][ T1] usbcore: registered new device driver usb [ 7.157821][ T1] pps_core: LinuxPPS API ver. 1 registered [ 7.157924][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 7.159640][ T1] PTP clock support registered [ 7.177621][ T1] EDAC MC: Ver: 3.0.0 [ 7.289585][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 7.375246][ T1] NetLabel: Initializing [ 7.375378][ T1] NetLabel: domain hash size = 128 [ 7.375433][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 7.383276][ T1] NetLabel: unlabeled traffic allowed by default [ 7.402715][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 7.410060][ T1] NET: Registered PF_NFC protocol family [ 7.423713][ T1] vgaarb: loaded [ 7.438702][ T1] clocksource: Switched to clocksource arch_sys_counter [ 7.489946][ T1] VFS: Disk quotas dquot_6.6.0 [ 7.493090][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 7.513372][ T1] FS-Cache: Loaded [ 7.542499][ T1] CacheFiles: Loaded [ 7.561619][ T1] TOMOYO: 2.6.0 [ 7.561928][ T1] Mandatory Access Control activated. [ 7.572676][ T1] pnp: PnP ACPI: disabled [ 8.302982][ T1] NET: Registered PF_INET protocol family [ 8.321253][ T1] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear) [ 8.402075][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 73728 bytes, linear) [ 8.403869][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 8.405501][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 8.426700][ T1] TCP bind bhash tables hash table entries: 16384 (order: 8, 1310720 bytes, linear) [ 8.451256][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 8.474083][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 8.484210][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 8.493439][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 8.515669][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 8.521903][ T1] NET: Registered PF_XDP protocol family [ 8.522765][ T1] PCI: CLS 0 bytes, default 64 [ 8.659762][ T1] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available [ 8.696356][ T1] kvm [1]: Guests without required CPU erratum workarounds can deadlock system! [ 8.696356][ T1] Only trusted guests should be used on this system. [ 8.696646][ T1] kvm [1]: IPA Size Limit: 44 bits [ 9.191191][ T1] kvm [1]: vgic interrupt IRQ9 [ 9.210198][ T1] kvm [1]: Hyp mode initialized successfully [ 9.466570][ T1] Initialise system trusted keyrings [ 9.503992][ T1] workingset: timestamp_bits=42 max_order=19 bucket_order=0 [ 10.324463][ T1] zbud: loaded [ 10.541902][ T1] DLM installed [ 10.786995][ T1] fuse: init (API version 7.36) [ 10.982480][ T1] NET: Registered PF_ALG protocol family [ 10.984272][ T1] xor: measuring software checksum speed [ 11.000854][ T1] 8regs : 1026 MB/sec [ 11.023410][ T1] 32regs : 548 MB/sec [ 11.073382][ T1] arm64_neon : 215 MB/sec [ 11.073633][ T1] xor: using function: 8regs (1026 MB/sec) [ 11.075046][ T1] async_tx: api initialized (async) [ 11.075744][ T1] Key type asymmetric registered [ 11.076148][ T1] Asymmetric key parser 'x509' registered [ 11.076314][ T1] Asymmetric key parser 'pkcs8' registered [ 11.076387][ T1] Key type pkcs7_test registered [ 11.182105][ T1] alg: self-tests for CTR-KDF (hmac(sha256)) passed [ 11.199583][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 242) [ 11.214962][ T1] io scheduler mq-deadline registered [ 11.215289][ T1] io scheduler kyber registered [ 11.232384][ T1] io scheduler bfq registered [ 11.505186][ T1] pl061_gpio 9030000.pl061: PL061 GPIO chip registered [ 11.692862][ T1] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges: [ 11.696437][ T1] pci-host-generic 4010000000.pcie: IO 0x003eff0000..0x003effffff -> 0x0000000000 [ 11.705490][ T1] pci-host-generic 4010000000.pcie: MEM 0x0010000000..0x003efeffff -> 0x0010000000 [ 11.706426][ T1] pci-host-generic 4010000000.pcie: MEM 0x8000000000..0xffffffffff -> 0x8000000000 [ 11.710265][ T1] pci-host-generic 4010000000.pcie: Memory resource size exceeds max for 32 bits [ 12.923471][ T1] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff] [ 12.950629][ T1] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00 [ 12.951997][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 12.952380][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 12.952608][ T1] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff] [ 12.952723][ T1] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff] [ 12.963220][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 12.996316][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 13.002571][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 13.003632][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 13.030627][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 13.031194][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 13.031372][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 13.031813][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 13.031969][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 13.055096][ T1] pci 0000:00:03.0: [1af4:1001] type 00 class 0x010000 [ 13.055615][ T1] pci 0000:00:03.0: reg 0x10: [io 0x0000-0x007f] [ 13.055793][ T1] pci 0000:00:03.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 13.056289][ T1] pci 0000:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 13.094691][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref] [ 13.095614][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref] [ 13.096238][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x8000004000-0x8000007fff 64bit pref] [ 13.096643][ T1] pci 0000:00:03.0: BAR 4: assigned [mem 0x8000008000-0x800000bfff 64bit pref] [ 13.096903][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x10040000-0x10040fff] [ 13.097032][ T1] pci 0000:00:03.0: BAR 1: assigned [mem 0x10041000-0x10041fff] [ 13.103242][ T1] pci 0000:00:03.0: BAR 0: assigned [io 0x1000-0x107f] [ 13.103570][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x1080-0x109f] [ 13.103683][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x10a0-0x10bf] [ 13.131262][ T1] IPMI message handler: version 39.2 [ 13.136871][ T1] ipmi device interface [ 13.184342][ T1] ipmi_si: IPMI System Interface driver [ 13.226784][ T1] ipmi_si: Unable to find any System Interface(s) [ 13.313596][ T1] EINJ: ACPI disabled. [ 13.709682][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 13.745479][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 13.794347][ T1] virtio-pci 0000:00:03.0: enabling device (0000 -> 0003) [ 22.364997][ T1] N_HDLC line discipline registered with maxframe=4096 [ 22.366641][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 915.003416][ T28] INFO: task swapper/0:1 blocked for more than 450 seconds. [ 915.010457][ T28] Not tainted 5.19.0-rc1-syzkaller-00243-ga32e7ea36235 #0 [ 915.011310][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 915.012479][ T28] task:swapper/0 state:D stack: 0 pid: 1 ppid: 0 flags:0x00000008 [ 915.013936][ T28] Call trace: [ 915.014378][ T28] __switch_to+0x1d0/0x330 [ 915.014978][ T28] __schedule+0x834/0x1c80 [ 915.015376][ T28] schedule+0xb8/0x1c4 [ 915.015746][ T28] schedule_preempt_disabled+0x18/0x30 [ 915.016134][ T28] __mutex_lock+0x400/0x83c [ 915.016499][ T28] mutex_lock_nested+0x78/0x100 [ 915.016880][ T28] add_early_randomness+0x38/0x150 [ 915.019906][ T28] hwrng_register+0x2f8/0x3c0 [ 915.020401][ T28] virtrng_scan+0x38/0x90 [ 915.020754][ T28] virtio_dev_probe+0x448/0x760 [ 915.021071][ T28] really_probe+0x16c/0x9ec [ 915.021364][ T28] __driver_probe_device+0x260/0x3d0 [ 915.021685][ T28] driver_probe_device+0x5c/0x150 [ 915.021987][ T28] __driver_attach+0x1a4/0x440 [ 915.022294][ T28] bus_for_each_dev+0x108/0x1a0 [ 915.022677][ T28] driver_attach+0x40/0x5c [ 915.023047][ T28] bus_add_driver+0x324/0x540 [ 915.023440][ T28] driver_register+0x184/0x410 [ 915.023810][ T28] register_virtio_driver+0x6c/0xc0 [ 915.024185][ T28] virtio_rng_driver_init+0x18/0x24 [ 915.024596][ T28] do_one_initcall+0x128/0x950 [ 915.024975][ T28] kernel_init_freeable+0x71c/0x7a0 [ 915.025364][ T28] kernel_init+0x28/0x140 [ 915.025733][ T28] ret_from_fork+0x10/0x20 [ 915.028898][ T28] [ 915.028898][ T28] Showing all locks held in the system: [ 915.029854][ T28] 2 locks held by swapper/0/1: [ 915.030322][ T28] #0: ffff00000ec76170 (&dev->mutex){....}-{3:3}, at: __driver_attach+0x198/0x440 [ 915.031920][ T28] #1: ffff80000e588048 (reading_mutex){+.+.}-{3:3}, at: add_early_randomness+0x38/0x150 [ 915.032957][ T28] 1 lock held by khungtaskd/28: [ 915.033259][ T28] #0: ffff80000e027b80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x74/0x25c [ 915.034365][ T28] 1 lock held by hwrng/706: [ 915.034729][ T28] #0: ffff80000e588048 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0xe0/0x28c [ 915.035822][ T28] [ 915.036146][ T28] ============================================= [ 915.036146][ T28] [ 915.036949][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 915.037691][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc1-syzkaller-00243-ga32e7ea36235 #0 [ 915.038047][ T28] Hardware name: linux,dummy-virt (DT) [ 915.038370][ T28] Call trace: [ 915.038570][ T28] dump_backtrace+0x1e0/0x270 [ 915.038836][ T28] show_stack+0x18/0x70 [ 915.039160][ T28] dump_stack_lvl+0x9c/0xd8 [ 915.039485][ T28] dump_stack+0x1c/0x38 [ 915.039796][ T28] panic+0x2ec/0x58c [ 915.040094][ T28] watchdog+0x484/0xd50 [ 915.040391][ T28] kthread+0x234/0x2a0 [ 915.040698][ T28] ret_from_fork+0x10/0x20 [ 915.041989][ T28] SMP: stopping secondary CPUs [ 915.043675][ T28] Kernel Offset: disabled [ 915.044449][ T28] CPU features: 0x880,00046810,00001086 [ 915.045117][ T28] Memory Limit: none [ 915.046045][ T28] Rebooting in 86400 seconds..