failed to run ["ssh" "-p" "55564" "-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 55564 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 5.19.0-rc1-syzkaller-00003-g89551fdd44a2 (syzkaller@syzkaller) (riscv64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #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 0x00000000fee00000 [ 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 0xffff0580-0xffff1fff] [ 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] On node 0, zone DMA32: 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 TIME extension detected [ 0.000000][ T0] SBI IPI extension detected [ 0.000000][ T0] SBI RFENCE extension detected [ 0.000000][ T0] SBI HSM extension detected [ 0.000000][ T0] riscv: base ISA extensions acdfim [ 0.000000][ T0] riscv: ELF capabilities acdfim [ 0.000000][ T0] percpu: cpu 0 has no node -1 or node-local memory [ 0.000000][ T0] percpu: Embedded 29 pages/cpu s79432 r8192 d31160 u118784 [ 0.000000][ T0] Fallback order for Node 0: 0 [ 0.000000][ T0] Built 1 zonelists, mobility grouping on. Total pages: 514569 [ 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 page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off dummy_hcd.num=2 smp.csd_lock_timeo [ 0.000000][ T0] Unknown kernel command line parameters "earlyprintk=serial", will be passed to user space. [ 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] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.000000][ T0] Stack Depot early init allocating hash table with memblock_alloc, 8388608 bytes [ 0.000000][ T0] Virtual kernel memory layout: [ 0.000000][ T0] fixmap : 0xff17fffffee00000 - 0xff17ffffff000000 (2048 kB) [ 0.000000][ T0] pci io : 0xff17ffffff000000 - 0xff18000000000000 ( 16 MB) [ 0.000000][ T0] vmemmap : 0xff18000000000000 - 0xff20000000000000 (2048 TB) [ 0.000000][ T0] vmalloc : 0xff20000000000000 - 0xff60000000000000 (16384 TB) [ 0.000000][ T0] lowmem : 0xff60000000000000 - 0xff6000007fe00000 (2046 MB) [ 0.000000][ T0] kasan : 0xffdf000000000000 - 0xffffffff00000000 (8447 TB) [ 0.000000][ T0] kernel : 0xffffffff80000000 - 0xffffffffffffffff (2047 MB) [ 0.000000][ T0] Memory: 1340300K/2095104K available (51768K kernel code, 18787K rwdata, 18432K rodata, 2389K init, 32168K bss, 738420K reserved, 16384K cma-reserved) [ 0.000000][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000][ T0] trace event string verifier disabled [ 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 is 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] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 0.000000][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xff6000005a0c6000-0xff6000005a2c6000 [ 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 [ 0.000192][ T0] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns [ 0.038742][ T0] Console: colour dummy device 80x25 [ 0.041783][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.042076][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.042316][ T0] ... MAX_LOCK_DEPTH: 48 [ 0.042548][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 0.042776][ T0] ... CLASSHASH_SIZE: 4096 [ 0.043022][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 0.043256][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 0.043517][ T0] ... CHAINHASH_SIZE: 131072 [ 0.043753][ T0] memory used by lock dependency info: 20657 kB [ 0.044006][ T0] memory used for stack traces: 8320 kB [ 0.044244][ T0] per task-struct memory footprint: 1920 bytes [ 0.052838][ T0] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000) [ 0.053702][ T0] pid_max: default: 32768 minimum: 301 [ 0.063376][ T0] LSM: Security Framework initializing [ 0.067209][ T0] landlock: Up and running. [ 0.067481][ T0] Yama: becoming mindful. [ 0.073510][ T0] TOMOYO Linux initialized [ 0.087273][ T0] AppArmor: AppArmor initialized [ 0.101576][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.102211][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear) [ 0.307016][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 0.308151][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 0.338156][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 0.346811][ T1] Running RCU-tasks wait API self tests [ 0.517300][ T1] riscv: ELF compat mode failed [ 0.519267][ T1] ASID allocator using 16 bits (65536 entries) [ 0.531086][ T12] Callback from call_rcu_tasks_trace() invoked. [ 0.547610][ T1] rcu: Hierarchical SRCU implementation. [ 0.705334][ T1] EFI services will not be available. [ 0.726091][ T1] smp: Bringing up secondary CPUs ... [ 0.806012][ T11] Callback from call_rcu_tasks() invoked. [ 0.814448][ T1] smp: Brought up 1 node, 2 CPUs [ 0.888067][ T1] allocated 33554432 bytes of page_ext [ 1.168610][ T1] Node 0, zone DMA32: page owner found early allocated 9281 pages [ 1.259529][ T1] devtmpfs: initialized [ 1.593159][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.594438][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.919673][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.959123][ T1] audit: initializing netlink subsys (disabled) [ 1.979692][ T26] audit: type=2000 audit(1.780:1): state=initialized audit_enabled=0 res=1 [ 2.047652][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.056476][ T1] cpuidle: using governor menu [ 6.184398][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 6.184742][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 6.531661][ T1] raid6: skipped pq benchmark and selected int64x8 [ 6.532020][ T1] raid6: using intx1 recovery algorithm [ 6.597362][ T1] iommu: Default domain type: Translated [ 6.597652][ T1] iommu: DMA domain TLB invalidation policy: strict mode [ 6.670125][ T1] SCSI subsystem initialized [ 6.742252][ T1] usbcore: registered new interface driver usbfs [ 6.749203][ T1] usbcore: registered new interface driver hub [ 6.754893][ T1] usbcore: registered new device driver usb [ 6.841823][ T1] EDAC MC: Ver: 3.0.0 [ 6.927745][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 7.043048][ T1] NetLabel: Initializing [ 7.043245][ T1] NetLabel: domain hash size = 128 [ 7.043451][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 7.054313][ T1] NetLabel: unlabeled traffic allowed by default [ 7.117305][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 7.125198][ T1] NET: Registered PF_NFC protocol family [ 7.141923][ T1] vgaarb: loaded [ 7.178083][ T1] clocksource: Switched to clocksource riscv_clocksource [ 7.288918][ T1] VFS: Disk quotas dquot_6.6.0 [ 7.293896][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 7.313996][ T1] FS-Cache: Loaded [ 7.344536][ T1] CacheFiles: Loaded [ 7.364788][ T1] TOMOYO: 2.6.0 [ 7.365134][ T1] Mandatory Access Control activated. [ 7.457135][ T1] AppArmor: AppArmor Filesystem Enabled [ 8.412335][ T1] NET: Registered PF_INET protocol family [ 8.426921][ T1] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear) [ 8.534841][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 73728 bytes, linear) [ 8.539968][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 8.579560][ T1] TCP bind bhash tables hash table entries: 16384 (order: 8, 1310720 bytes, linear) [ 8.604320][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 8.622060][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, linear) [ 8.640193][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 8.647400][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, linear) [ 8.665695][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 8.668506][ T1] NET: Registered PF_XDP protocol family [ 8.669129][ T1] PCI: CLS 0 bytes, default 64 [ 8.800168][ T1] kvm [1]: hypervisor extension not available [ 9.467997][ T1] Initialise system trusted keyrings [ 9.534489][ T1] workingset: timestamp_bits=44 max_order=19 bucket_order=0 [ 10.749331][ T1] zbud: loaded [ 11.149782][ T1] DLM installed [ 11.534775][ T1] fuse: init (API version 7.36) [ 11.829180][ T1] NET: Registered PF_ALG protocol family [ 11.831805][ T1] xor: measuring software checksum speed [ 11.990299][ T1] 8regs : 65 MB/sec [ 12.144026][ T1] 8regs_prefetch : 66 MB/sec [ 12.275463][ T1] 32regs : 76 MB/sec [ 12.454995][ T1] 32regs_prefetch : 66 MB/sec [ 12.455510][ T1] xor: using function: 32regs (76 MB/sec) [ 12.459437][ T1] async_tx: api initialized (async) [ 12.460694][ T1] Key type asymmetric registered [ 12.461469][ T1] Asymmetric key parser 'x509' registered [ 12.461766][ T1] Asymmetric key parser 'pkcs8' registered [ 12.461970][ T1] Key type pkcs7_test registered [ 12.641644][ T1] alg: self-tests for CTR-KDF (hmac(sha256)) passed [ 12.650436][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245) [ 12.681516][ T1] io scheduler mq-deadline registered [ 12.681964][ T1] io scheduler kyber registered [ 12.722376][ T1] io scheduler bfq registered [ 13.475113][ T1] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges: [ 13.531693][ T1] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000 [ 13.534699][ T1] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000 [ 15.222667][ T1] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff] [ 15.248637][ T1] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00 [ 15.250014][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 15.250739][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 15.251357][ T1] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff] [ 15.272439][ T1] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000 [ 15.342992][ T1] pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 [ 15.344991][ T1] pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] [ 15.360161][ T1] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 15.414724][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 15.420427][ T1] pci 0000:00:02.0: reg 0x10: [io 0x0000-0x001f] [ 15.421174][ T1] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x00000fff] [ 15.422552][ T1] pci 0000:00:02.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] [ 15.423240][ T1] pci 0000:00:02.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] [ 15.504051][ T1] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff pref] [ 15.505024][ T1] pci 0000:00:01.0: BAR 4: assigned [mem 0x40040000-0x40043fff 64bit pref] [ 15.505945][ T1] pci 0000:00:02.0: BAR 4: assigned [mem 0x40044000-0x40047fff 64bit pref] [ 15.508061][ T1] pci 0000:00:02.0: BAR 1: assigned [mem 0x40048000-0x40048fff] [ 15.508494][ T1] pci 0000:00:01.0: BAR 0: assigned [io 0x0000-0x001f] [ 15.508918][ T1] pci 0000:00:02.0: BAR 0: assigned [io 0x0020-0x003f] [ 15.834110][ T1] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003) [ 15.932831][ T1] virtio-pci 0000:00:02.0: enabling device (0000 -> 0003) [ 29.347117][ T1] N_HDLC line discipline registered with maxframe=4096 [ 29.348340][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 29.965199][ T1] printk: console [ttyS0] disabled [ 29.979743][ T1] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 4, base_baud = 230400) is a 16550A [ 29.997482][ T657] printk: console [ttyS0] printing thread started [ 30.002643][ T1] printk: console [ttyS0] enabled [ 915.179747][ T28] INFO: task swapper/0:1 blocked for more than 450 seconds. [ 915.183753][ T28] Not tainted 5.19.0-rc1-syzkaller-00003-g89551fdd44a2 #0 [ 915.185386][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 915.193667][ T28] task:swapper/0 state:D stack: 0 pid: 1 ppid: 0 flags:0x00000000 [ 915.198268][ T28] Call Trace: [ 915.199687][ T28] [] schedule+0x74/0x120 [ 915.202976][ T28] [] schedule_preempt_disabled+0x16/0x28 [ 915.204402][ T28] [] __mutex_lock+0x520/0xb3c [ 915.205740][ T28] [] mutex_lock_nested+0x14/0x1c [ 915.209622][ T28] [] add_early_randomness+0x2c/0x162 [ 915.210735][ T28] [] hwrng_register+0x2d0/0x380 [ 915.211774][ T28] [] virtrng_scan+0x2c/0x6c [ 915.212723][ T28] [] virtio_dev_probe+0x48e/0x742 [ 915.213730][ T28] [] really_probe+0x194/0x7c0 [ 915.214694][ T28] [] __driver_probe_device+0x24a/0x2d4 [ 915.215729][ T28] [] driver_probe_device+0x60/0x1a4 [ 915.218103][ T28] [] __driver_attach+0x178/0x368 [ 915.219361][ T28] [] bus_for_each_dev+0x122/0x194 [ 915.220378][ T28] [] driver_attach+0x32/0x3c [ 915.221321][ T28] [] bus_add_driver+0x2cc/0x432 [ 915.222297][ T28] [] driver_register+0x144/0x28a [ 915.223292][ T28] [] register_virtio_driver+0x5e/0x8c [ 915.224330][ T28] [] virtio_rng_driver_init+0x20/0x28 [ 915.225372][ T28] [] do_one_initcall+0x13c/0x7f0 [ 915.228620][ T28] [] kernel_init_freeable+0x510/0x5b4 [ 915.229990][ T28] [] kernel_init+0x28/0x21c [ 915.230999][ T28] [] ret_from_exception+0x0/0x10 [ 915.232497][ T28] [ 915.232497][ T28] Showing all locks held in the system: [ 915.233700][ T28] 2 locks held by swapper/0/1: [ 915.234508][ T28] #0: ff6000000e6b3170 (&dev->mutex){....}-{3:3}, at: __driver_attach+0x170/0x368 [ 915.238867][ T28] #1: ffffffff85071828 (reading_mutex){+.+.}-{3:3}, at: add_early_randomness+0x2c/0x162 [ 915.241319][ T28] 2 locks held by kworker/u4:0/8: [ 915.242121][ T28] #0: ff60000007e29138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x512/0xfc8 [ 915.244353][ T28] #1: ff20000000297cf0 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x512/0xfc8 [ 915.250137][ T28] 1 lock held by khungtaskd/28: [ 915.251238][ T28] #0: ffffffff84d7a080 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x40/0x1e2 [ 915.253589][ T28] 1 lock held by hwrng/670: [ 915.254343][ T28] #0: ffffffff85071828 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0xda/0x2a2 [ 915.259806][ T28] [ 915.260556][ T28] ============================================= [ 915.260556][ T28] [ 915.261918][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 915.263053][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc1-syzkaller-00003-g89551fdd44a2 #0 [ 915.264204][ T28] Hardware name: riscv-virtio,qemu (DT) [ 915.264991][ T28] Call Trace: [ 915.265561][ T28] [] dump_backtrace+0x2e/0x3c [ 915.267773][ T28] [] show_stack+0x34/0x40 [ 915.269787][ T28] [] dump_stack_lvl+0xe4/0x150 [ 915.270793][ T28] [] dump_stack+0x1c/0x24 [ 915.271620][ T28] [] panic+0x278/0x664 [ 915.272385][ T28] [] touch_softlockup_watchdog+0x0/0x7a [ 915.273278][ T28] [] kthread+0x19e/0x1fa [ 915.274063][ T28] [] ret_from_exception+0x0/0x10 [ 915.275162][ T28] SMP: stopping secondary CPUs [ 915.278379][ T28] Rebooting in 86400 seconds..