failed to run ["ssh" "-p" "21042" "-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 21042 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-00717-ge641318db4c2 (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 (43635K 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 [ 0.000184][ T0] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns [ 0.033459][ T0] Console: colour dummy device 80x25 [ 0.037928][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.038558][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.039068][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.039563][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.040063][ T0] ... CLASSHASH_SIZE: 4096 [ 0.040559][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.041053][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.041534][ T0] ... CHAINHASH_SIZE: 32768 [ 0.042044][ T0] memory used by lock dependency info: 6365 kB [ 0.042551][ T0] memory used for stack traces: 4224 kB [ 0.043060][ T0] per task-struct memory footprint: 1920 bytes [ 0.050776][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000) [ 0.052100][ T0] pid_max: default: 32768 minimum: 301 [ 0.061476][ T0] LSM: Security Framework initializing [ 0.065182][ T0] Yama: becoming mindful. [ 0.071978][ T0] TOMOYO Linux initialized [ 0.086445][ T0] AppArmor: AppArmor initialized [ 0.090393][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.091963][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.345887][ T1] Running RCU-tasks wait API self tests [ 0.516955][ T1] ASID allocator using 16 bits (65536 entries) [ 0.534274][ T1] rcu: Hierarchical SRCU implementation. [ 0.546388][ T10] Callback from call_rcu_tasks_trace() invoked. [ 0.670849][ T1] EFI services will not be available. [ 0.691290][ T1] smp: Bringing up secondary CPUs ... [ 0.779283][ T9] Callback from call_rcu_tasks() invoked. [ 0.786160][ T1] smp: Brought up 1 node, 2 CPUs [ 0.883897][ T1] devtmpfs: initialized [ 1.179736][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.182955][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.644575][ T1] NET: Registered protocol family 16 [ 1.700444][ T1] audit: initializing netlink subsys (disabled) [ 1.726206][ T39] audit: type=2000 audit(1.540:1): state=initialized audit_enabled=0 res=1 [ 2.035780][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 18.479305][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 18.480423][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 20.201339][ T1] raid6: skip pq benchmark and using algorithm int64x8 [ 20.202237][ T1] raid6: using intx1 recovery algorithm [ 20.389256][ T1] vgaarb: loaded [ 20.518305][ T1] SCSI subsystem initialized [ 20.690258][ T1] usbcore: registered new interface driver usbfs [ 20.704924][ T1] usbcore: registered new interface driver hub [ 20.736758][ T1] usbcore: registered new device driver usb [ 21.037499][ T1] EDAC MC: Ver: 3.0.0 [ 21.254062][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 21.479510][ T1] NetLabel: Initializing [ 21.480352][ T1] NetLabel: domain hash size = 128 [ 21.481023][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 21.494451][ T1] NetLabel: unlabeled traffic allowed by default [ 21.544913][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 21.564753][ T1] NET: Registered protocol family 39 [ 21.614396][ T1] clocksource: Switched to clocksource riscv_clocksource [ 29.514127][ T1] VFS: Disk quotas dquot_6.6.0 [ 29.527002][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 29.578001][ T1] FS-Cache: Loaded [ 29.613508][ T1] CacheFiles: Loaded [ 29.658790][ T1] TOMOYO: 2.6.0 [ 29.660052][ T1] Mandatory Access Control activated. [ 29.773613][ T1] AppArmor: AppArmor Filesystem Enabled [ 32.481399][ T1] NET: Registered protocol family 2 [ 32.611576][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear) [ 32.626050][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 32.659051][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear) [ 32.690330][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 32.714267][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 32.725439][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 32.734196][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 32.764153][ T1] NET: Registered protocol family 1 [ 32.767425][ T1] NET: Registered protocol family 44 [ 32.768833][ T1] PCI: CLS 0 bytes, default 64 [ 33.399057][ T1] Initialise system trusted keyrings [ 33.438518][ T1] workingset: timestamp_bits=44 max_order=19 bucket_order=0 [ 34.836979][ T1] zbud: loaded [ 35.156017][ T1] DLM installed [ 35.615465][ T1] fuse: init (API version 7.33) [ 36.119145][ T1] NET: Registered protocol family 38 [ 36.139224][ T1] xor: measuring software checksum speed [ 36.355702][ T1] 8regs : 46 MB/sec [ 36.584070][ T1] 8regs_prefetch : 44 MB/sec [ 36.783398][ T1] 32regs : 50 MB/sec [ 37.008661][ T1] 32regs_prefetch : 45 MB/sec [ 37.009659][ T1] xor: using function: 32regs (50 MB/sec) [ 37.013521][ T1] async_tx: api initialized (async) [ 37.015145][ T1] Key type asymmetric registered [ 37.017047][ T1] Asymmetric key parser 'x509' registered [ 37.018424][ T1] Asymmetric key parser 'pkcs8' registered [ 37.019075][ T1] Key type pkcs7_test registered [ 37.019713][ T1] Asymmetric key parser 'tpm_parser' registered [ 37.047226][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 37.096459][ T1] io scheduler mq-deadline registered [ 37.097467][ T1] io scheduler kyber registered [ 37.154649][ T1] io scheduler bfq registered [ 37.866202][ T1] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges: [ 37.874132][ T1] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000 [ 37.878874][ T1] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000 [ 37.973794][ T1] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff] [ 37.991585][ T1] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00 [ 37.995002][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 37.996165][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 37.997206][ T1] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff] [ 38.005820][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 38.046773][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 38.049283][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 38.051501][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 38.088585][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 38.090321][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 38.091455][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 38.097298][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 38.098486][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 38.156818][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff pref] [ 38.158763][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x40040000-0x40043fff 64bit pref] [ 38.160612][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x40044000-0x40047fff 64bit pref] [ 38.166228][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x40048000-0x40048fff] [ 38.167400][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x0000-0x001f] [ 38.168460][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x0020-0x003f] [ 38.286674][ T1] usbcore: registered new interface driver udlfb [ 38.309815][ T1] usbcore: registered new interface driver smscufx [ 38.426390][ T1] uvesafb: failed to execute /sbin/v86d [ 38.427354][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 38.428469][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 38.429689][ T1] uvesafb: vbe_init() failed with -22 [ 38.437788][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 38.625272][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 38.670957][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 50.145887][ T1] N_HDLC line discipline registered with maxframe=4096 [ 50.328687][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 50.787677][ T1] printk: console [ttyS0] disabled [ 50.806269][ T1] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 2, base_baud = 230400) is a 16550A [ 51.001555][ T1] printk: console [ttyS0] enabled [ 51.114991][ T1] Cyclades driver 2.6 [ 51.160645][ T1] Initializing Nozomi driver 2.1d [ 51.208684][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 51.216450][ T1] No rocketport ports found; unloading driver [ 51.420265][ T1795] random: fast init done [ 51.437795][ T1795] random: crng init done [ 51.500483][ T1] [drm] radeon kernel modesetting enabled. [ 51.660943][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 51.875174][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 53.510225][ T1] Console: switching to colour frame buffer device 128x48 [ 54.227356][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 54.239495][ T1] usbcore: registered new interface driver udl [ 56.093263][ T1] brd: module loaded [ 57.876300][ C0] ------------[ cut here ]------------ [ 57.878077][ C0] WARNING: CPU: 0 PID: 13 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x23e/0x242 [ 57.881495][ C0] Modules linked in: [ 57.884603][ C0] CPU: 0 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc5-syzkaller-00717-ge641318db4c2 #0 [ 57.889160][ C0] Hardware name: riscv-virtio,qemu (DT) [ 57.892083][ C0] epc : vkms_vblank_simulate+0x23e/0x242 [ 57.894376][ C0] ra : vkms_vblank_simulate+0x23e/0x242 [ 57.896090][ C0] epc : ffffffe000f5b92a ra : ffffffe000f5b92a sp : ffffffe0057cb970 [ 57.897637][ C0] gp : ffffffe004588b08 tp : ffffffe0057baf80 t0 : 0000000000046000 [ 57.901093][ C0] t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe0057cb9b0 [ 57.903975][ C0] s1 : ffffffe00a8f9e58 a0 : 0000000000000000 a1 : 00000000000f0000 [ 57.905639][ C0] a2 : 0000000000010001 a3 : ffffffe000f5b92a a4 : ffffffe0057baf80 [ 57.910504][ C0] a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe000f5b744 [ 57.914963][ C0] s2 : ffffffe00a8f8d30 s3 : 0000000000000002 s4 : 0000000000fe4c00 [ 57.918498][ C0] s5 : 0000000000001000 s6 : ffffffe067d481c8 s7 : 0000000000000000 [ 57.922467][ C0] s8 : ffffffe067d48190 s9 : ffffffe00a8f9e90 s10: ffffffe067d48100 [ 57.926231][ C0] s11: ffffffe000f5b6ec t3 : cec03afaa8ec7000 t4 : ffffffc40cfaaba9 [ 57.929886][ C0] t5 : ffffffc40cfaabaa t6 : 0000000000000005 [ 57.931134][ C0] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 [ 57.932867][ C0] Call Trace: [ 57.935531][ C0] [] vkms_vblank_simulate+0x23e/0x242 [ 57.939816][ C0] [] __hrtimer_run_queues+0x4aa/0x9ba [ 57.944099][ C0] [] hrtimer_interrupt+0x1e6/0x50a [ 57.947909][ C0] [] riscv_timer_interrupt+0x5c/0x6a [ 57.951023][ C0] [] handle_percpu_devid_irq+0x17e/0x2be [ 57.957081][ C0] [] __handle_domain_irq+0x13e/0x1ea [ 57.961126][ C0] [] riscv_intc_irq+0x82/0xcc [ 57.964954][ C0] [] ret_from_exception+0x0/0x14 [ 57.968950][ C0] [] _raw_spin_unlock_irqrestore+0x68/0x98 [ 57.974003][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 57.978296][ C0] CPU: 0 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc5-syzkaller-00717-ge641318db4c2 #0 [ 57.981118][ C0] Hardware name: riscv-virtio,qemu (DT) [ 57.982316][ C0] Call Trace: [ 57.983103][ C0] [] walk_stackframe+0x0/0x23c [ 57.984770][ C0] [] dump_backtrace+0x40/0x4e [ 57.986228][ C0] [] show_stack+0x22/0x2e [ 57.987426][ C0] [] dump_stack+0x148/0x1d8 [ 57.988593][ C0] [] panic+0x20a/0x5cc [ 57.989784][ C0] [] __warn+0x110/0x20a [ 57.990974][ C0] [] report_bug+0x156/0x200 [ 57.993751][ C0] [] do_trap_break+0xd8/0x184 [ 57.995420][ C0] [] ret_from_exception+0x0/0x14 [ 57.996758][ C0] [] vkms_vblank_simulate+0x23e/0x242 [ 57.999129][ C0] SMP: stopping secondary CPUs [ 58.002419][ C0] Rebooting in 86400 seconds..