failed to run ["ssh" "-p" "31565" "-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 31565 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-rc6-syzkaller-00180-g0688c240404a (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 [0] [ 0.000000][ T0] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns [ 0.000164][ T0] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns [ 0.031622][ T0] Console: colour dummy device 80x25 [ 0.034060][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.034406][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.034735][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.035713][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.036198][ T0] ... CLASSHASH_SIZE: 4096 [ 0.036731][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.037207][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.037685][ T0] ... CHAINHASH_SIZE: 32768 [ 0.038161][ T0] memory used by lock dependency info: 6365 kB [ 0.038658][ T0] memory used for stack traces: 4224 kB [ 0.039140][ T0] per task-struct memory footprint: 1920 bytes [ 0.046843][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000) [ 0.048024][ T0] pid_max: default: 32768 minimum: 301 [ 0.056308][ T0] LSM: Security Framework initializing [ 0.060131][ T0] Yama: becoming mindful. [ 0.065008][ T0] TOMOYO Linux initialized [ 0.077176][ T0] AppArmor: AppArmor initialized [ 0.081162][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.081964][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.323352][ T1] Running RCU-tasks wait API self tests [ 0.491921][ T1] ASID allocator using 16 bits (65536 entries) [ 0.502464][ T10] Callback from call_rcu_tasks_trace() invoked. [ 0.508459][ T1] rcu: Hierarchical SRCU implementation. [ 0.631729][ T1] EFI services will not be available. [ 0.653222][ T1] smp: Bringing up secondary CPUs ... [ 0.729355][ T1] smp: Brought up 1 node, 2 CPUs [ 0.766470][ T9] Callback from call_rcu_tasks() invoked. [ 0.819076][ T1] devtmpfs: initialized [ 1.080472][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.082252][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.526034][ T1] NET: Registered protocol family 16 [ 1.580360][ T1] audit: initializing netlink subsys (disabled) [ 1.611761][ T39] audit: type=2000 audit(1.450:1): state=initialized audit_enabled=0 res=1 [ 1.897500][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 16.781526][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 16.782867][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 18.558803][ T1] raid6: skip pq benchmark and using algorithm int64x8 [ 18.559999][ T1] raid6: using intx1 recovery algorithm [ 18.777595][ T1] vgaarb: loaded [ 18.919893][ T1] SCSI subsystem initialized [ 19.114366][ T1] usbcore: registered new interface driver usbfs [ 19.129552][ T1] usbcore: registered new interface driver hub [ 19.165700][ T1] usbcore: registered new device driver usb [ 19.385795][ T1] EDAC MC: Ver: 3.0.0 [ 19.616178][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 19.810868][ T1] NetLabel: Initializing [ 19.811651][ T1] NetLabel: domain hash size = 128 [ 19.812250][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 19.825387][ T1] NetLabel: unlabeled traffic allowed by default [ 19.847492][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 19.865055][ T1] NET: Registered protocol family 39 [ 19.908584][ T1] clocksource: Switched to clocksource riscv_clocksource [ 27.711046][ T1] VFS: Disk quotas dquot_6.6.0 [ 27.716915][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 27.738010][ T1] FS-Cache: Loaded [ 27.781561][ T1] CacheFiles: Loaded [ 27.801742][ T1] TOMOYO: 2.6.0 [ 27.802904][ T1] Mandatory Access Control activated. [ 27.921003][ T1] AppArmor: AppArmor Filesystem Enabled [ 30.567598][ T1] NET: Registered protocol family 2 [ 30.661491][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, linear) [ 30.665423][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 30.715211][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, linear) [ 30.747572][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 30.771769][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 30.782738][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 30.792557][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 30.820336][ T1] NET: Registered protocol family 1 [ 30.823321][ T1] NET: Registered protocol family 44 [ 30.824646][ T1] PCI: CLS 0 bytes, default 64 [ 31.473816][ T1] Initialise system trusted keyrings [ 31.523238][ T1] workingset: timestamp_bits=44 max_order=19 bucket_order=0 [ 32.948386][ T1] zbud: loaded [ 33.240607][ T1] DLM installed [ 33.688918][ T1] fuse: init (API version 7.33) [ 34.134622][ T1] NET: Registered protocol family 38 [ 34.153358][ T1] xor: measuring software checksum speed [ 34.372296][ T1] 8regs : 46 MB/sec [ 34.597231][ T1] 8regs_prefetch : 44 MB/sec [ 34.771068][ T1] 32regs : 57 MB/sec [ 35.011662][ T1] 32regs_prefetch : 41 MB/sec [ 35.012675][ T1] xor: using function: 32regs (57 MB/sec) [ 35.015110][ T1] async_tx: api initialized (async) [ 35.018317][ T1] Key type asymmetric registered [ 35.020332][ T1] Asymmetric key parser 'x509' registered [ 35.021793][ T1] Asymmetric key parser 'pkcs8' registered [ 35.022496][ T1] Key type pkcs7_test registered [ 35.023187][ T1] Asymmetric key parser 'tpm_parser' registered [ 35.035444][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 35.053232][ T1] io scheduler mq-deadline registered [ 35.054223][ T1] io scheduler kyber registered [ 35.082605][ T1] io scheduler bfq registered [ 35.643135][ T1] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges: [ 35.651511][ T1] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000 [ 35.660190][ T1] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000 [ 35.768527][ T1] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff] [ 35.791451][ T1] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00 [ 35.793158][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 35.794274][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 35.795291][ T1] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff] [ 35.802907][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 35.841830][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 35.844698][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 35.848621][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 35.877124][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 35.878705][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 35.879754][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 35.881489][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 35.882967][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 35.933452][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff pref] [ 35.935300][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x40040000-0x40043fff 64bit pref] [ 35.938927][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x40044000-0x40047fff 64bit pref] [ 35.940279][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x40048000-0x40048fff] [ 35.941323][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x0000-0x001f] [ 35.942315][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x0020-0x003f] [ 36.049104][ T1] usbcore: registered new interface driver udlfb [ 36.063910][ T1] usbcore: registered new interface driver smscufx [ 36.170982][ T1] uvesafb: failed to execute /sbin/v86d [ 36.171791][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 36.172802][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 36.173948][ T1] uvesafb: vbe_init() failed with -22 [ 36.181038][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 36.388540][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 36.442944][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 47.677320][ T1] N_HDLC line discipline registered with maxframe=4096 [ 47.883341][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 48.342939][ T1] printk: console [ttyS0] disabled [ 48.366846][ T1] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 2, base_baud = 230400) is a 16550A [ 48.590265][ T1] printk: console [ttyS0] enabled [ 48.721561][ T1] Cyclades driver 2.6 [ 48.754685][ T1] Initializing Nozomi driver 2.1d [ 48.819865][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 48.824188][ T1] No rocketport ports found; unloading driver [ 49.032810][ T1793] random: fast init done [ 49.059593][ T1793] random: crng init done [ 49.125532][ T1] [drm] radeon kernel modesetting enabled. [ 49.274122][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 49.456527][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 50.910591][ T1] Console: switching to colour frame buffer device 128x48 [ 51.511343][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 51.526968][ T1] usbcore: registered new interface driver udl [ 53.155464][ T1] brd: module loaded [ 55.569737][ C0] ------------[ cut here ]------------ [ 55.571346][ C0] WARNING: CPU: 0 PID: 1877 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x23e/0x242 [ 55.573410][ C0] Modules linked in: [ 55.574773][ C0] CPU: 0 PID: 1877 Comm: kworker/u4:0 Not tainted 5.12.0-rc6-syzkaller-00180-g0688c240404a #0 [ 55.576672][ C0] Hardware name: riscv-virtio,qemu (DT) [ 55.584783][ C0] epc : vkms_vblank_simulate+0x23e/0x242 [ 55.593310][ C0] ra : vkms_vblank_simulate+0x23e/0x242 [ 55.594896][ C0] epc : ffffffe000f5b7fc ra : ffffffe000f5b7fc sp : ffffffe00b4cf390 [ 55.596402][ C0] gp : ffffffe004588ad0 tp : ffffffe00b5697c0 t0 : 0000000000046000 [ 55.597714][ C0] t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe00b4cf3d0 [ 55.598897][ C0] s1 : ffffffe005e69e58 a0 : 0000000000000000 a1 : 00000000000f0000 [ 55.600124][ C0] a2 : 0000000000010000 a3 : ffffffe000f5b7fc a4 : ffffffe00b5697c0 [ 55.601434][ C0] a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffffe000f5b616 [ 55.602553][ C0] s2 : ffffffe005e68d30 s3 : 0000000000000002 s4 : 0000000000fe4c00 [ 55.603756][ C0] s5 : 0000000000001000 s6 : ffffffe067d481c8 s7 : 0000000000000000 [ 55.605029][ C0] s8 : ffffffe067d48190 s9 : ffffffe005e69e90 s10: ffffffe067d48100 [ 55.606229][ C0] s11: ffffffe000f5b5be t3 : 0f875c5bb6b4b200 t4 : ffffffc400a08107 [ 55.607430][ C0] t5 : ffffffc400a0810e t6 : ffffffe00ae4dc5c [ 55.608437][ C0] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 [ 55.616813][ C0] Call Trace: [ 55.617643][ C0] [] vkms_vblank_simulate+0x23e/0x242 [ 55.621823][ C0] [] __hrtimer_run_queues+0x4aa/0x9ba [ 55.625429][ C0] [] hrtimer_interrupt+0x1e6/0x50a [ 55.628484][ C0] [] riscv_timer_interrupt+0x5c/0x6a [ 55.631293][ C0] [] handle_percpu_devid_irq+0x17e/0x2be [ 55.634158][ C0] [] __handle_domain_irq+0x13e/0x1ea [ 55.636742][ C0] [] riscv_intc_irq+0x82/0xcc [ 55.638096][ C0] [] ret_from_exception+0x0/0x14 [ 55.640728][ C0] [] d_alloc_parallel+0x1ca/0x13aa [ 55.643893][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 55.646068][ C0] CPU: 0 PID: 1877 Comm: kworker/u4:0 Not tainted 5.12.0-rc6-syzkaller-00180-g0688c240404a #0 [ 55.650011][ C0] Hardware name: riscv-virtio,qemu (DT) [ 55.652893][ C0] Call Trace: [ 55.654512][ C0] [] walk_stackframe+0x0/0x23c [ 55.656461][ C0] [] dump_backtrace+0x40/0x4e [ 55.658670][ C0] [] show_stack+0x22/0x2e [ 55.661493][ C0] [] dump_stack+0x148/0x1d8 [ 55.664235][ C0] [] panic+0x20a/0x5cc [ 55.666791][ C0] [] __warn+0x110/0x20a [ 55.668123][ C0] [] report_bug+0x156/0x200 [ 55.671532][ C0] [] do_trap_break+0xd8/0x184 [ 55.674691][ C0] [] ret_from_exception+0x0/0x14 [ 55.675797][ C0] [] vkms_vblank_simulate+0x23e/0x242 [ 55.677438][ C0] SMP: stopping secondary CPUs [ 55.680373][ C0] Rebooting in 86400 seconds..