failed to run ["ssh" "-p" "53858" "-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 53858 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 [ 0.000211][ T0] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns [ 0.039522][ T0] Console: colour dummy device 80x25 [ 0.043577][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.044224][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.044758][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.045308][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.045847][ T0] ... CLASSHASH_SIZE: 4096 [ 0.046396][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.046936][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.047457][ T0] ... CHAINHASH_SIZE: 32768 [ 0.048001][ T0] memory used by lock dependency info: 6365 kB [ 0.050049][ T0] memory used for stack traces: 4224 kB [ 0.050670][ T0] per task-struct memory footprint: 1920 bytes [ 0.058614][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000) [ 0.061124][ T0] pid_max: default: 32768 minimum: 301 [ 0.070586][ T0] LSM: Security Framework initializing [ 0.075482][ T0] Yama: becoming mindful. [ 0.081659][ T0] TOMOYO Linux initialized [ 0.096391][ T0] AppArmor: AppArmor initialized [ 0.100799][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.101753][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.392184][ T1] Running RCU-tasks wait API self tests [ 0.571879][ T1] ASID allocator using 16 bits (65536 entries) [ 0.599168][ T10] Callback from call_rcu_tasks_trace() invoked. [ 0.604378][ T1] rcu: Hierarchical SRCU implementation. [ 0.784923][ T1] EFI services will not be available. [ 0.817488][ T1] smp: Bringing up secondary CPUs ... [ 0.835221][ T9] Callback from call_rcu_tasks() invoked. [ 0.980060][ T1] smp: Brought up 1 node, 2 CPUs [ 1.134101][ T1] devtmpfs: initialized [ 1.570654][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.573129][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 2.202414][ T1] NET: Registered protocol family 16 [ 2.281883][ T1] audit: initializing netlink subsys (disabled) [ 2.342402][ T39] audit: type=2000 audit(1.970:1): state=initialized audit_enabled=0 res=1 [ 2.707032][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 21.589229][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 21.597773][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 24.413694][ T1] raid6: skip pq benchmark and using algorithm int64x8 [ 24.415012][ T1] raid6: using intx1 recovery algorithm [ 24.709526][ T1] vgaarb: loaded [ 24.876992][ T1] SCSI subsystem initialized [ 25.150286][ T1] usbcore: registered new interface driver usbfs [ 25.183593][ T1] usbcore: registered new interface driver hub [ 25.196297][ T1] usbcore: registered new device driver usb [ 25.616986][ T1] EDAC MC: Ver: 3.0.0 [ 25.887864][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 26.217972][ T1] NetLabel: Initializing [ 26.219067][ T1] NetLabel: domain hash size = 128 [ 26.219799][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 26.242161][ T1] NetLabel: unlabeled traffic allowed by default [ 26.292934][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 26.315720][ T1] NET: Registered protocol family 39 [ 26.382322][ T1] clocksource: Switched to clocksource riscv_clocksource [ 35.812415][ T1] VFS: Disk quotas dquot_6.6.0 [ 35.819600][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 35.856611][ T1] FS-Cache: Loaded [ 35.914782][ T1] CacheFiles: Loaded [ 35.945949][ T1] TOMOYO: 2.6.0 [ 35.947407][ T1] Mandatory Access Control activated. [ 36.119816][ T1] AppArmor: AppArmor Filesystem Enabled [ 40.077435][ T1] NET: Registered protocol family 2 [ 40.213190][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear) [ 40.217825][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 40.258778][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear) [ 40.294115][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 40.323711][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 40.338209][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 40.348076][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 40.383638][ T1] NET: Registered protocol family 1 [ 40.387364][ T1] NET: Registered protocol family 44 [ 40.389148][ T1] PCI: CLS 0 bytes, default 64 [ 41.214370][ T1] Initialise system trusted keyrings [ 41.288902][ T1] workingset: timestamp_bits=44 max_order=19 bucket_order=0 [ 43.227309][ T1] zbud: loaded [ 43.596788][ T1] DLM installed [ 44.117155][ T1] fuse: init (API version 7.33) [ 44.717529][ T1] NET: Registered protocol family 38 [ 44.738498][ T1] xor: measuring software checksum speed [ 44.984768][ T1] 8regs : 41 MB/sec [ 45.225109][ T1] 8regs_prefetch : 42 MB/sec [ 45.443245][ T1] 32regs : 46 MB/sec [ 45.693478][ T1] 32regs_prefetch : 40 MB/sec [ 45.694554][ T1] xor: using function: 32regs (46 MB/sec) [ 45.697514][ T1] async_tx: api initialized (async) [ 45.699322][ T1] Key type asymmetric registered [ 45.702930][ T1] Asymmetric key parser 'x509' registered [ 45.704606][ T1] Asymmetric key parser 'pkcs8' registered [ 45.705383][ T1] Key type pkcs7_test registered [ 45.706180][ T1] Asymmetric key parser 'tpm_parser' registered [ 45.713583][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 45.772988][ T1] io scheduler mq-deadline registered [ 45.774287][ T1] io scheduler kyber registered [ 45.817850][ T1] io scheduler bfq registered [ 46.596575][ T1] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges: [ 46.610520][ T1] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000 [ 46.625451][ T1] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000 [ 46.753386][ T1] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff] [ 46.786458][ T1] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00 [ 46.788472][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 46.789845][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 46.795093][ T1] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff] [ 46.805432][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 46.854556][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 46.857583][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 46.862337][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 46.915671][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 46.917856][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 46.919160][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 46.923113][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 46.924558][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 46.979556][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff pref] [ 46.983358][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x40040000-0x40043fff 64bit pref] [ 46.985608][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x40044000-0x40047fff 64bit pref] [ 46.987176][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x40048000-0x40048fff] [ 46.988383][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x0000-0x001f] [ 46.989496][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x0020-0x003f] [ 47.139039][ T1] usbcore: registered new interface driver udlfb [ 47.167642][ T1] usbcore: registered new interface driver smscufx [ 47.296205][ T1] uvesafb: failed to execute /sbin/v86d [ 47.297183][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 47.298339][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 47.299567][ T1] uvesafb: vbe_init() failed with -22 [ 47.305925][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 47.536169][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 47.596431][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 64.368576][ T1] N_HDLC line discipline registered with maxframe=4096 [ 64.612572][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 65.256965][ T1] printk: console [ttyS0] disabled [ 65.323877][ T1] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 2, base_baud = 230400) is a 16550A [ 65.567638][ T1] printk: console [ttyS0] enabled [ 65.694586][ T1] Cyclades driver 2.6 [ 65.738284][ T1] Initializing Nozomi driver 2.1d [ 65.826040][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 65.835737][ T1] No rocketport ports found; unloading driver [ 66.168117][ T1795] random: fast init done [ 66.245976][ T1795] random: crng init done [ 66.284939][ T1] [drm] radeon kernel modesetting enabled. [ 66.485651][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 66.827188][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 68.768650][ T1] Console: switching to colour frame buffer device 128x48 [ 69.457396][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 69.488309][ T1] usbcore: registered new interface driver udl [ 70.044926][ C0] ------------[ cut here ]------------ [ 70.046411][ C0] WARNING: CPU: 0 PID: 13 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x23e/0x242 [ 70.048271][ C0] Modules linked in: [ 70.049563][ C0] CPU: 0 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc8-syzkaller-00194-g18a3c5f7abfd #0 [ 70.051204][ C0] Hardware name: riscv-virtio,qemu (DT) [ 70.052507][ C0] epc : vkms_vblank_simulate+0x23e/0x242 [ 70.053877][ C0] ra : vkms_vblank_simulate+0x23e/0x242 [ 70.055139][ C0] epc : ffffffe000f5c40a ra : ffffffe000f5c40a sp : ffffffe0057cb970 [ 70.070977][ C0] gp : ffffffe004588b78 tp : ffffffe0057baf80 t0 : 0000000000046000 [ 70.072369][ C0] t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe0057cb9b0 [ 70.073584][ C0] s1 : ffffffe00a835e58 a0 : 0000000000000000 a1 : 00000000000f0000 [ 70.076169][ C0] a2 : 0000000000010001 a3 : ffffffe000f5c40a a4 : ffffffe0057baf80 [ 70.077485][ C0] a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe000f5c224 [ 70.078751][ C0] s2 : ffffffe00a834d30 s3 : 0000000000000002 s4 : 0000000000fe4c00 [ 70.080032][ C0] s5 : 0000000000001000 s6 : ffffffe067d481c8 s7 : 0000000000000000 [ 70.081293][ C0] s8 : ffffffe067d48190 s9 : ffffffe00a835e90 s10: ffffffe067d48100 [ 70.082567][ C0] s11: ffffffe000f5c1cc t3 : d7978423d04e9300 t4 : ffffffc400a08107 [ 70.083821][ C0] t5 : ffffffc400a0810e t6 : 0000000000000007 [ 70.085023][ C0] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 [ 70.086475][ C0] Call Trace: [ 70.087407][ C0] [] vkms_vblank_simulate+0x23e/0x242 [ 70.105068][ C0] [] __hrtimer_run_queues+0x4aa/0x9ba [ 70.106536][ C0] [] hrtimer_interrupt+0x1e6/0x50a [ 70.107868][ C0] [] riscv_timer_interrupt+0x5c/0x6a [ 70.109289][ C0] [] handle_percpu_devid_irq+0x17e/0x2be [ 70.123200][ C0] [] __handle_domain_irq+0x13e/0x1ea [ 70.124740][ C0] [] riscv_intc_irq+0x82/0xcc [ 70.126139][ C0] [] ret_from_exception+0x0/0x14 [ 70.127840][ C0] [] _raw_spin_unlock_irqrestore+0x68/0x98 [ 70.131766][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 70.133792][ C0] CPU: 0 PID: 13 Comm: rcu_preempt Not tainted 5.12.0-rc8-syzkaller-00194-g18a3c5f7abfd #0 [ 70.135321][ C0] Hardware name: riscv-virtio,qemu (DT) [ 70.136531][ C0] Call Trace: [ 70.137307][ C0] [] walk_stackframe+0x0/0x23c [ 70.138568][ C0] [] dump_backtrace+0x40/0x4e [ 70.139838][ C0] [] show_stack+0x22/0x2e [ 70.141085][ C0] [] dump_stack+0x148/0x1d8 [ 70.142276][ C0] [] panic+0x20a/0x5cc [ 70.151365][ C0] [] __warn+0x110/0x20a [ 70.152878][ C0] [] report_bug+0x156/0x200 [ 70.154229][ C0] [] do_trap_break+0xd8/0x184 [ 70.155497][ C0] [] ret_from_exception+0x0/0x14 [ 70.158130][ C0] [] vkms_vblank_simulate+0x23e/0x242 [ 70.162564][ C0] SMP: stopping secondary CPUs [ 70.167289][ C0] Rebooting in 86400 seconds..