failed to run ["ssh" "-p" "21517" "-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 21517 timed out OpenSBI v0.8 ____ _____ ____ _____ / __ \ / ____| _ \_ _| | | | |_ __ ___ _ __ | (___ | |_) || | | | | | '_ \ / _ \ '_ \ \___ \| _ < | | | |__| | |_) | __/ | | |____) | |_) || |_ \____/| .__/ \___|_| |_|_____/|____/_____| | | |_| Platform Name : riscv-virtio,qemu Platform Features : timer,mfdeleg Platform HART Count : 2 Boot HART ID : 0 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-rc8-syzkaller-00194-g18a3c5f7abfd (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 (43651K 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 [0] [ 0.000000][ T0] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns [ 0.000221][ T0] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns [ 0.037512][ T0] Console: colour dummy device 80x25 [ 0.042451][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.043100][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.043618][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.044115][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.044713][ T0] ... CLASSHASH_SIZE: 4096 [ 0.045231][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.045737][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.046297][ T0] ... CHAINHASH_SIZE: 32768 [ 0.046811][ T0] memory used by lock dependency info: 6365 kB [ 0.047371][ T0] memory used for stack traces: 4224 kB [ 0.047913][ T0] per task-struct memory footprint: 1920 bytes [ 0.056449][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000) [ 0.057803][ T0] pid_max: default: 32768 minimum: 301 [ 0.067700][ T0] LSM: Security Framework initializing [ 0.073075][ T0] Yama: becoming mindful. [ 0.078690][ T0] TOMOYO Linux initialized [ 0.094557][ T0] AppArmor: AppArmor initialized [ 0.098921][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.099903][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.387951][ T1] Running RCU-tasks wait API self tests [ 0.558626][ T1] ASID allocator using 16 bits (65536 entries) [ 0.577286][ T1] rcu: Hierarchical SRCU implementation. [ 0.589595][ T10] Callback from call_rcu_tasks_trace() invoked. [ 0.751214][ T1] EFI services will not be available. [ 0.780510][ T1] smp: Bringing up secondary CPUs ... [ 0.823113][ T9] Callback from call_rcu_tasks() invoked. [ 0.920310][ T1] smp: Brought up 1 node, 2 CPUs [ 1.071647][ T1] devtmpfs: initialized [ 1.535996][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.539070][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 2.238807][ T1] NET: Registered protocol family 16 [ 2.295593][ T1] audit: initializing netlink subsys (disabled) [ 2.342481][ T39] audit: type=2000 audit(1.980:1): state=initialized audit_enabled=0 res=1 [ 2.706856][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 19.543977][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 19.545160][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 22.143413][ T1] raid6: skip pq benchmark and using algorithm int64x8 [ 22.144426][ T1] raid6: using intx1 recovery algorithm [ 22.329628][ T1] vgaarb: loaded [ 22.468982][ T1] SCSI subsystem initialized [ 22.711141][ T1] usbcore: registered new interface driver usbfs [ 22.730197][ T1] usbcore: registered new interface driver hub [ 22.736770][ T1] usbcore: registered new device driver usb [ 23.037889][ T1] EDAC MC: Ver: 3.0.0 [ 23.290211][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 23.543224][ T1] NetLabel: Initializing [ 23.545658][ T1] NetLabel: domain hash size = 128 [ 23.546373][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 23.558911][ T1] NetLabel: unlabeled traffic allowed by default [ 23.588021][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 23.603540][ T1] NET: Registered protocol family 39 [ 23.672783][ T1] clocksource: Switched to clocksource riscv_clocksource [ 32.785826][ T1] VFS: Disk quotas dquot_6.6.0 [ 32.793566][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 32.820326][ T1] FS-Cache: Loaded [ 32.857992][ T1] CacheFiles: Loaded [ 32.906743][ T1] TOMOYO: 2.6.0 [ 32.908041][ T1] Mandatory Access Control activated. [ 33.026419][ T1] AppArmor: AppArmor Filesystem Enabled [ 36.060026][ T1] NET: Registered protocol family 2 [ 36.204457][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear) [ 36.208811][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 36.246994][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear) [ 36.288204][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 36.315131][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 36.326650][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 36.337359][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 36.370643][ T1] NET: Registered protocol family 1 [ 36.375393][ T1] NET: Registered protocol family 44 [ 36.377035][ T1] PCI: CLS 0 bytes, default 64 [ 37.077411][ T1] Initialise system trusted keyrings [ 37.170175][ T1] workingset: timestamp_bits=44 max_order=19 bucket_order=0 [ 38.843986][ T1] zbud: loaded [ 39.203323][ T1] DLM installed [ 39.713498][ T1] fuse: init (API version 7.33) [ 40.257533][ T1] NET: Registered protocol family 38 [ 40.279382][ T1] xor: measuring software checksum speed [ 40.508480][ T1] 8regs : 43 MB/sec [ 40.737108][ T1] 8regs_prefetch : 43 MB/sec [ 40.955518][ T1] 32regs : 46 MB/sec [ 41.174082][ T1] 32regs_prefetch : 46 MB/sec [ 41.175103][ T1] xor: using function: 32regs_prefetch (46 MB/sec) [ 41.177864][ T1] async_tx: api initialized (async) [ 41.179703][ T1] Key type asymmetric registered [ 41.183566][ T1] Asymmetric key parser 'x509' registered [ 41.185230][ T1] Asymmetric key parser 'pkcs8' registered [ 41.186027][ T1] Key type pkcs7_test registered [ 41.186798][ T1] Asymmetric key parser 'tpm_parser' registered [ 41.200327][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 41.219932][ T1] io scheduler mq-deadline registered [ 41.223718][ T1] io scheduler kyber registered [ 41.291720][ T1] io scheduler bfq registered [ 41.999752][ T1] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges: [ 42.018966][ T1] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000 [ 42.028813][ T1] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000 [ 42.157417][ T1] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff] [ 42.205351][ T1] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00 [ 42.208047][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 42.209884][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 42.213579][ T1] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff] [ 42.224998][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 42.274222][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 42.278480][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 42.282821][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 42.313396][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 42.315229][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 42.316423][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 42.318326][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 42.319530][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 42.364341][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff pref] [ 42.366412][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x40040000-0x40043fff 64bit pref] [ 42.368536][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x40044000-0x40047fff 64bit pref] [ 42.370123][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x40048000-0x40048fff] [ 42.372859][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x0000-0x001f] [ 42.374102][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x0020-0x003f] [ 42.490094][ T1] usbcore: registered new interface driver udlfb [ 42.539252][ T1] usbcore: registered new interface driver smscufx [ 42.649415][ T1] uvesafb: failed to execute /sbin/v86d [ 42.650509][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 42.655584][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 42.656825][ T1] uvesafb: vbe_init() failed with -22 [ 42.660542][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 42.878006][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 42.942312][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 58.167114][ T1] N_HDLC line discipline registered with maxframe=4096 [ 58.426511][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 59.139345][ T1] printk: console [ttyS0] disabled [ 59.208007][ T1] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 2, base_baud = 230400) is a 16550A [ 59.555343][ T1] printk: console [ttyS0] enabled [ 59.694837][ T1] Cyclades driver 2.6 [ 59.743634][ T1] Initializing Nozomi driver 2.1d [ 59.804185][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 59.809607][ T1] No rocketport ports found; unloading driver [ 60.030226][ T1795] random: fast init done [ 60.049210][ T1795] random: crng init done [ 60.126281][ T1] [drm] radeon kernel modesetting enabled. [ 60.276048][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 60.535837][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 62.636426][ T1] Console: switching to colour frame buffer device 128x48 [ 63.327802][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 63.337752][ T1] usbcore: registered new interface driver udl [ 64.264357][ C1] ------------[ cut here ]------------ [ 64.266690][ C1] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x23e/0x242 [ 64.269239][ C1] Modules linked in: [ 64.270988][ C1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc8-syzkaller-00194-g18a3c5f7abfd #0 [ 64.275009][ C1] Hardware name: riscv-virtio,qemu (DT) [ 64.278189][ C1] epc : vkms_vblank_simulate+0x23e/0x242 [ 64.280078][ C1] ra : vkms_vblank_simulate+0x23e/0x242 [ 64.282851][ C1] epc : ffffffe000f5c40a ra : ffffffe000f5c40a sp : ffffffe005773340 [ 64.284463][ C1] gp : ffffffe004588b78 tp : ffffffe005768000 t0 : 0000000000046000 [ 64.285981][ C1] t1 : 0000000000000001 t2 : 000000000000187e s0 : ffffffe005773380 [ 64.287404][ C1] s1 : ffffffe00a941e58 a0 : 0000000000000000 a1 : 00000000000f0000 [ 64.288766][ C1] a2 : 0000000000010000 a3 : ffffffe000f5c40a a4 : ffffffe005768000 [ 64.290203][ C1] a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe000f5c224 [ 64.292127][ C1] s2 : ffffffe00a940d30 s3 : 0000000000000002 s4 : 0000000000fe4c00 [ 64.294518][ C1] s5 : 0000000000001000 s6 : ffffffe067d651c8 s7 : 0000000000000000 [ 64.296124][ C1] s8 : ffffffe067d65190 s9 : ffffffe00a941e90 s10: ffffffe067d65100 [ 64.302484][ C1] s11: ffffffe000f5c1cc t3 : 2617b946d5e0bc00 t4 : ffffffc400b1304b [ 64.307081][ C1] t5 : ffffffc400b1304c t6 : ffffffe00589825c [ 64.308721][ C1] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 [ 64.310391][ C1] Call Trace: [ 64.313811][ C1] [] vkms_vblank_simulate+0x23e/0x242 [ 64.315857][ C1] [] __hrtimer_run_queues+0x4aa/0x9ba [ 64.317450][ C1] [] hrtimer_interrupt+0x1e6/0x50a [ 64.318982][ C1] [] riscv_timer_interrupt+0x5c/0x6a [ 64.320469][ C1] [] handle_percpu_devid_irq+0x17e/0x2be [ 64.327379][ C1] [] __handle_domain_irq+0x13e/0x1ea [ 64.329182][ C1] [] riscv_intc_irq+0x82/0xcc [ 64.333222][ C1] [] ret_from_exception+0x0/0x14 [ 64.335514][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 64.337233][ C1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc8-syzkaller-00194-g18a3c5f7abfd #0 [ 64.338902][ C1] Hardware name: riscv-virtio,qemu (DT) [ 64.340040][ C1] Call Trace: [ 64.344137][ C1] [] walk_stackframe+0x0/0x23c [ 64.345699][ C1] [] dump_backtrace+0x40/0x4e [ 64.347093][ C1] [] show_stack+0x22/0x2e [ 64.348405][ C1] [] dump_stack+0x148/0x1d8 [ 64.349292][ C1] [] panic+0x20a/0x5cc [ 64.350172][ C1] [] __warn+0x110/0x20a [ 64.353172][ C1] [] report_bug+0x156/0x200 [ 64.354776][ C1] [] do_trap_break+0xd8/0x184 [ 64.355755][ C1] [] ret_from_exception+0x0/0x14 [ 64.356726][ C1] [] vkms_vblank_simulate+0x23e/0x242 [ 64.358356][ C1] SMP: stopping secondary CPUs [ 64.361381][ C1] Rebooting in 86400 seconds..