failed to run ["ssh" "-p" "44236" "-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 44236 timed out
OpenSBI v0.8
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : riscv-virtio,qemu
Platform Features : timer,mfdeleg
Platform HART Count : 2
Boot HART ID : 1
Boot HART ISA : rv64imafdcsu
BOOT HART Features : pmp,scounteren,mcounteren,time
BOOT HART PMP Count : 16
Firmware Base : 0x80000000
Firmware Size : 104 KB
Runtime SBI Version : 0.2
MIDELEG : 0x0000000000000222
MEDELEG : 0x000000000000b109
PMP0 : 0x0000000080000000-0x000000008001ffff (A)
PMP1 : 0x0000000000000000-0xffffffffffffffff (A,R,W,X)
[ 0.000000][ T0] Linux version 5.12.0-rc5-syzkaller-00720-g1adbc2941eee (syzkaller@syzkaller) (riscv64-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] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[ 0.000000][ T0] Machine model: riscv-virtio,qemu
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** This system shows unhashed kernel memory addresses **
[ 0.000000][ T0] ** via the console, logs, and other interfaces. This **
[ 0.000000][ T0] ** might reduce the security of your system. **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** If you see this message and you are not debugging **
[ 0.000000][ T0] ** the kernel, report this immediately to your system **
[ 0.000000][ T0] ** administrator! **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] efi: UEFI not found.
[ 0.000000][ T0] cma: Reserved 16 MiB at 0x00000000fec00000
[ 0.000000][ T0] NUMA: No NUMA configuration found
[ 0.000000][ T0] NUMA: Faking a node at [mem 0x0000000080200000-0x00000000ffffffff]
[ 0.000000][ T0] NUMA: NODE_DATA [mem 0xffff5740-0xffff6fff]
[ 0.000000][ T0] Zone ranges:
[ 0.000000][ T0] DMA32 [mem 0x0000000080200000-0x00000000ffffffff]
[ 0.000000][ T0] Normal empty
[ 0.000000][ T0] Movable zone start for each node
[ 0.000000][ T0] Early memory node ranges
[ 0.000000][ T0] node 0: [mem 0x0000000080200000-0x00000000ffffffff]
[ 0.000000][ T0] Initmem setup node 0 [mem 0x0000000080200000-0x00000000ffffffff]
[ 0.000000][ T0] DMA32 zone: 512 pages in unavailable ranges
[ 0.000000][ T0] SBI specification v0.2 detected
[ 0.000000][ T0] SBI implementation ID=0x1 Version=0x8
[ 0.000000][ T0] SBI v0.2 TIME extension detected
[ 0.000000][ T0] SBI v0.2 IPI extension detected
[ 0.000000][ T0] SBI v0.2 RFENCE extension detected
[ 0.000000][ T0] software IO TLB: mapped [mem 0x00000000f7c00000-0x00000000fbc00000] (64MB)
[ 0.000000][ T0] SBI v0.2 HSM extension detected
[ 0.000000][ T0] riscv: ISA extensions acdfimsu
[ 0.000000][ T0] riscv: ELF capabilities acdfim
[ 0.000000][ T0] percpu: Embedded 29 pages/cpu s79368 r8192 d31224 u118784
[ 0.000000][ T0] Built 1 zonelists, mobility grouping on. Total pages: 515592
[ 0.000000][ T0] Policy zone: DMA32
[ 0.000000][ T0] Kernel command line: root=/dev/vda console=ttyS0 earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 no_hash_pointers dummy_hcd.num=2 watchdog_thresh=165 workqueue.watchdog_thresh=420 sysctl.net.core.netdev_unregister_timeout_secs=420 panic_on_warn=1
[ 0.000000][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[ 0.000000][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000][ T0] Sorting __ex_table...
[ 0.000000][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off
[ 0.000000][ T0] Memory: 1605244K/2095104K available (43634K kernel code, 7494K rwdata, 16384K rodata, 2281K init, 13413K bss, 473476K reserved, 16384K cma-reserved)
[ 0.000000][ T0] Virtual kernel memory layout:
[ 0.000000][ T0] fixmap : 0xffffffcefee00000 - 0xffffffceff000000 (2048 kB)
[ 0.000000][ T0] pci io : 0xffffffceff000000 - 0xffffffcf00000000 ( 16 MB)
[ 0.000000][ T0] vmemmap : 0xffffffcf00000000 - 0xffffffcfffffffff (4095 MB)
[ 0.000000][ T0] vmalloc : 0xffffffd000000000 - 0xffffffdfffffffff (65535 MB)
[ 0.000000][ T0] lowmem : 0xffffffe000000000 - 0xffffffe07fe00000 (2046 MB)
[ 0.000000][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000][ T0] Running RCU self tests
[ 0.000000][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000][ T0] rcu: RCU lockdep checking is enabled.
[ 0.000000][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 0.000000][ T0] rcu: RCU callback double-/use-after-free debug enabled.
[ 0.000000][ T0] rcu: RCU debug extended QS entry/exit.
[ 0.000000][ T0] All grace periods are expedited (rcu_expedited).
[ 0.000000][ T0] Trampoline variant of Tasks RCU enabled.
[ 0.000000][ T0] Tracing variant of Tasks RCU enabled.
[ 0.000000][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 0.000000][ T0] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000][ T0] riscv-intc: 64 local interrupts mapped
[ 0.000000][ T0] plic: plic@c000000: mapped 53 interrupts with 2 handlers for 4 contexts.
[ 0.000000][ T0] random: get_random_bytes called from start_kernel+0x346/0x5e6 with crng_init=0
[ 0.000000][ T0] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [1]
[ 0.000000][ T0] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
[ 0.000175][ T0] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns
[ 0.027687][ T0] Console: colour dummy device 80x25
[ 0.030328][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.030685][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.031008][ T0] ... MAX_LOCK_DEPTH: 48
[ 0.031341][ T0] ... MAX_LOCKDEP_KEYS: 8192
[ 0.031666][ T0] ... CLASSHASH_SIZE: 4096
[ 0.032034][ T0] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.032378][ T0] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.032705][ T0] ... CHAINHASH_SIZE: 32768
[ 0.033027][ T0] memory used by lock dependency info: 6365 kB
[ 0.033892][ T0] memory used for stack traces: 4224 kB
[ 0.034238][ T0] per task-struct memory footprint: 1920 bytes
[ 0.039343][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000)
[ 0.040410][ T0] pid_max: default: 32768 minimum: 301
[ 0.047623][ T0] LSM: Security Framework initializing
[ 0.050411][ T0] Yama: becoming mindful.
[ 0.054079][ T0] TOMOYO Linux initialized
[ 0.063390][ T0] AppArmor: AppArmor initialized
[ 0.066739][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.067331][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.290148][ T1] Running RCU-tasks wait API self tests
[ 0.452783][ T1] ASID allocator using 16 bits (65536 entries)
[ 0.469906][ T1] rcu: Hierarchical SRCU implementation.
[ 0.483145][ T10] Callback from call_rcu_tasks_trace() invoked.
[ 0.620157][ T1] EFI services will not be available.
[ 0.644371][ T1] smp: Bringing up secondary CPUs ...
[ 0.715913][ T9] Callback from call_rcu_tasks() invoked.
[ 0.727209][ T1] smp: Brought up 1 node, 2 CPUs
[ 0.821903][ T1] devtmpfs: initialized
[ 1.140703][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 1.142713][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear)
[ 1.622093][ T1] NET: Registered protocol family 16
[ 1.674852][ T1] audit: initializing netlink subsys (disabled)
[ 1.698635][ T39] audit: type=2000 audit(1.530:1): state=initialized audit_enabled=0 res=1
[ 1.969457][ T1] thermal_sys: Registered thermal governor 'step_wise'
[ 16.317544][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[ 16.320145][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 17.906223][ T1] raid6: skip pq benchmark and using algorithm int64x8
[ 17.908326][ T1] raid6: using intx1 recovery algorithm
[ 18.095338][ T1] vgaarb: loaded
[ 18.236101][ T1] SCSI subsystem initialized
[ 18.428977][ T1] usbcore: registered new interface driver usbfs
[ 18.445363][ T1] usbcore: registered new interface driver hub
[ 18.465990][ T1] usbcore: registered new device driver usb
[ 18.706573][ T1] EDAC MC: Ver: 3.0.0
[ 18.945072][ T1] Advanced Linux Sound Architecture Driver Initialized.
[ 19.144532][ T1] NetLabel: Initializing
[ 19.145282][ T1] NetLabel: domain hash size = 128
[ 19.145874][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 19.157197][ T1] NetLabel: unlabeled traffic allowed by default
[ 19.184743][ T1] nfc: nfc_init: NFC Core ver 0.1
[ 19.205350][ T1] NET: Registered protocol family 39
[ 19.254606][ T1] clocksource: Switched to clocksource riscv_clocksource
[ 25.454884][ T1] VFS: Disk quotas dquot_6.6.0
[ 25.461044][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 25.487183][ T1] FS-Cache: Loaded
[ 25.527657][ T1] CacheFiles: Loaded
[ 25.549502][ T1] TOMOYO: 2.6.0
[ 25.550632][ T1] Mandatory Access Control activated.
[ 25.642350][ T1] AppArmor: AppArmor Filesystem Enabled
[ 28.161620][ T1] NET: Registered protocol family 2
[ 28.237540][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear)
[ 28.240845][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 28.275957][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear)
[ 28.301901][ T1] TCP: Hash tables configured (established 16384 bind 16384)
[ 28.326253][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear)
[ 28.334948][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear)
[ 28.342426][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear)
[ 28.367706][ T1] NET: Registered protocol family 1
[ 28.370242][ T1] NET: Registered protocol family 44
[ 28.371351][ T1] PCI: CLS 0 bytes, default 64
[ 28.889118][ T1] Initialise system trusted keyrings
[ 28.917098][ T1] workingset: timestamp_bits=44 max_order=19 bucket_order=0
[ 30.221508][ T1] zbud: loaded
[ 30.558872][ T1] DLM installed
[ 31.018718][ T1] fuse: init (API version 7.33)
[ 31.458933][ T1] NET: Registered protocol family 38
[ 31.482495][ T1] xor: measuring software checksum speed
[ 31.674463][ T1] 8regs : 52 MB/sec
[ 31.890935][ T1] 8regs_prefetch : 46 MB/sec
[ 32.135544][ T1] 32regs : 43 MB/sec
[ 32.350136][ T1] 32regs_prefetch : 48 MB/sec
[ 32.351129][ T1] xor: using function: 8regs (52 MB/sec)
[ 32.354829][ T1] async_tx: api initialized (async)
[ 32.356349][ T1] Key type asymmetric registered
[ 32.358145][ T1] Asymmetric key parser 'x509' registered
[ 32.359551][ T1] Asymmetric key parser 'pkcs8' registered
[ 32.360263][ T1] Key type pkcs7_test registered
[ 32.360916][ T1] Asymmetric key parser 'tpm_parser' registered
[ 32.387668][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 32.437615][ T1] io scheduler mq-deadline registered
[ 32.438626][ T1] io scheduler kyber registered
[ 32.478546][ T1] io scheduler bfq registered
[ 33.028569][ T1] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges:
[ 33.050027][ T1] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000
[ 33.059440][ T1] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000
[ 33.158285][ T1] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff]
[ 33.180599][ T1] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00
[ 33.182303][ T1] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 33.195071][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 33.196187][ T1] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff]
[ 33.204480][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000
[ 33.240664][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00
[ 33.244305][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f]
[ 33.246664][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref]
[ 33.274521][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000
[ 33.276266][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f]
[ 33.277393][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff]
[ 33.279149][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref]
[ 33.280318][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref]
[ 33.327233][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff pref]
[ 33.329100][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x40040000-0x40043fff 64bit pref]
[ 33.330963][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x40044000-0x40047fff 64bit pref]
[ 33.332303][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x40048000-0x40048fff]
[ 33.334547][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x0000-0x001f]
[ 33.335611][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x0020-0x003f]
[ 33.436770][ T1] usbcore: registered new interface driver udlfb
[ 33.451651][ T1] usbcore: registered new interface driver smscufx
[ 33.537445][ T1] uvesafb: failed to execute /sbin/v86d
[ 33.538302][ T1] uvesafb: make sure that the v86d helper is installed and executable
[ 33.539290][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2)
[ 33.540408][ T1] uvesafb: vbe_init() failed with -22
[ 33.546420][ T1] uvesafb: probe of uvesafb.0 failed with error -22
[ 33.747932][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003)
[ 33.799758][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003)
[ 44.816880][ T1] N_HDLC line discipline registered with maxframe=4096
[ 44.988958][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 45.452454][ T1] printk: console [ttyS0] disabled
[ 45.475664][ T1] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 2, base_baud = 230400) is a 16550A
[ 45.737164][ T1] printk: console [ttyS0] enabled
[ 45.829239][ T1] Cyclades driver 2.6
[ 45.898636][ T1] Initializing Nozomi driver 2.1d
[ 45.947145][ T1] RocketPort device driver module, version 2.09, 12-June-2003
[ 45.950507][ T1] No rocketport ports found; unloading driver
[ 46.168138][ T1796] random: fast init done
[ 46.210433][ T1796] random: crng init done
[ 46.226975][ T1] [drm] radeon kernel modesetting enabled.
[ 46.352251][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[ 46.530972][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
[ 48.119932][ T1] Console: switching to colour frame buffer device 128x48
[ 48.685935][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device
[ 48.727437][ T1] usbcore: registered new interface driver udl
[ 50.444323][ T1] brd: module loaded
[ 50.693024][ C1] ------------[ cut here ]------------
[ 50.694654][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x23e/0x242
[ 50.699479][ C1] Modules linked in:
[ 50.700674][ C1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc5-syzkaller-00720-g1adbc2941eee #0
[ 50.702120][ C1] Hardware name: riscv-virtio,qemu (DT)
[ 50.708373][ C1] epc : vkms_vblank_simulate+0x23e/0x242
[ 50.709695][ C1] ra : vkms_vblank_simulate+0x23e/0x242
[ 50.710817][ C1] epc : ffffffe000f5b8c4 ra : ffffffe000f5b8c4 sp : ffffffe005773080
[ 50.711895][ C1] gp : ffffffe004588b08 tp : ffffffe005768000 t0 : 0000000000046000
[ 50.714002][ C1] t1 : 0000000000000001 t2 : ffffffe0004352ea s0 : ffffffe0057730c0
[ 50.715065][ C1] s1 : ffffffe00a7ede58 a0 : 0000000000000000 a1 : 00000000000f0000
[ 50.716125][ C1] a2 : 0000000000010101 a3 : ffffffe000f5b8c4 a4 : ffffffe005768000
[ 50.717177][ C1] a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe000f5b6de
[ 50.718204][ C1] s2 : ffffffe00a7ecd30 s3 : 0000000000000002 s4 : 0000000000fe4c00
[ 50.719246][ C1] s5 : 0000000000001000 s6 : ffffffe067d651c8 s7 : 0000000000000000
[ 50.720301][ C1] s8 : ffffffe067d65190 s9 : ffffffe00a7ede90 s10: ffffffe067d65100
[ 50.721345][ C1] s11: ffffffe000f5b686 t3 : 29a0b8004d5c9500 t4 : ffffffc400aee65e
[ 50.722379][ C1] t5 : ffffffc400aee65f t6 : ffffffe00ae0a7cc
[ 50.724150][ C1] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003
[ 50.725297][ C1] Call Trace:
[ 50.725993][ C1] [<ffffffe000f5b8c4>] vkms_vblank_simulate+0x23e/0x242
[ 50.727333][ C1] [<ffffffe000121808>] __hrtimer_run_queues+0x4aa/0x9ba
[ 50.728542][ C1] [<ffffffe0001224f8>] hrtimer_interrupt+0x1e6/0x50a
[ 50.729652][ C1] [<ffffffe001da538c>] riscv_timer_interrupt+0x5c/0x6a
[ 50.730785][ C1] [<ffffffe0000ef82c>] handle_percpu_devid_irq+0x17e/0x2be
[ 50.731920][ C1] [<ffffffe0000e4718>] __handle_domain_irq+0x13e/0x1ea
[ 50.733939][ C1] [<ffffffe000a91226>] riscv_intc_irq+0x82/0xcc
[ 50.735051][ C1] [<ffffffe000005580>] ret_from_exception+0x0/0x14
[ 50.736136][ C1] [<ffffffe002a9b384>] _raw_spin_unlock_irqrestore+0x68/0x98
[ 50.737676][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 50.738816][ C1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc5-syzkaller-00720-g1adbc2941eee #0
[ 50.740025][ C1] Hardware name: riscv-virtio,qemu (DT)
[ 50.740831][ C1] Call Trace:
[ 50.741473][ C1] [<ffffffe000009706>] walk_stackframe+0x0/0x23c
[ 50.742539][ C1] [<ffffffe002a5f182>] dump_backtrace+0x40/0x4e
[ 50.744486][ C1] [<ffffffe002a5f1b2>] show_stack+0x22/0x2e
[ 50.745517][ C1] [<ffffffe002a68a3e>] dump_stack+0x148/0x1d8
[ 50.746630][ C1] [<ffffffe002a5f57a>] panic+0x20a/0x5cc
[ 50.747637][ C1] [<ffffffe00002615e>] __warn+0x110/0x20a
[ 50.748683][ C1] [<ffffffe000a5a58e>] report_bug+0x156/0x200
[ 50.749775][ C1] [<ffffffe00000953c>] do_trap_break+0xd8/0x184
[ 50.752558][ C1] [<ffffffe000005580>] ret_from_exception+0x0/0x14
[ 50.756616][ C1] [<ffffffe000f5b8c4>] vkms_vblank_simulate+0x23e/0x242
[ 50.759790][ C1] SMP: stopping secondary CPUs
[ 50.776640][ C1] Rebooting in 86400 seconds..