./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2531847563 <...> Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. execve("./syz-executor2531847563", ["./syz-executor2531847563"], 0x7ffeef0d03f0 /* 10 vars */) = 0 brk(NULL) = 0x555555b9b000 brk(0x555555b9bc40) = 0x555555b9bc40 arch_prctl(ARCH_SET_FS, 0x555555b9b300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2531847563", 4096) = 28 brk(0x555555bbcc40) = 0x555555bbcc40 brk(0x555555bbd000) = 0x555555bbd000 mprotect(0x7f0b6c2a4000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555b9b5d0) = 5072 ./strace-static-x86_64: Process 5072 attached [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setpgid(0, 0) = 0 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1000", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] memfd_create("syzkaller", 0) = 3 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0b63dc8000 [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5072] munmap(0x7f0b63dc8000, 16777216) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5072] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5072] close(3) = 0 [pid 5072] mkdir("./file0", 0777) = 0 [ 52.562947][ T5072] loop0: detected capacity change from 0 to 32768 [ 52.578326][ T5072] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 52.586915][ T5072] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 52.603419][ T5072] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 52.613317][ T14] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 52.620181][ T14] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [pid 5072] mount("/dev/loop0", "./file0", "gfs2", MS_SYNCHRONOUS|MS_POSIXACL, "nodiscard,rgrplvb,noloccookie,statfs_quantum=0x0000000000000000,quota,nosuiddir," [pid 5071] kill(-5072, SIGKILL) = 0 [pid 5071] kill(5072, SIGKILL) = 0 [pid 5071] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5071] getdents64(3, 0x555555b9c620 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(3, 0x555555b9c620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [ 76.343134][ T7] cfg80211: failed to load regulatory.db [ 286.261757][ T28] INFO: task kworker/0:1:14 blocked for more than 143 seconds. [ 286.269430][ T28] Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 286.277038][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.285834][ T28] task:kworker/0:1 state:D stack:21408 pid:14 ppid:2 flags:0x00004000 [ 286.295147][ T28] Workqueue: gfs_recovery gfs2_recover_func [ 286.301106][ T28] Call Trace: [ 286.304495][ T28] [ 286.307433][ T28] __schedule+0x995/0xe20 [ 286.311996][ T28] ? release_firmware_map_entry+0x180/0x180 [ 286.317904][ T28] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 286.324028][ T28] ? print_irqtrace_events+0x220/0x220 [ 286.329505][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.334804][ T28] ? lockdep_hardirqs_on+0x8d/0x130 [ 286.340052][ T28] schedule+0xcb/0x190 [ 286.344172][ T28] io_schedule+0x83/0x100 [ 286.348512][ T28] folio_wait_bit_common+0x83a/0x12a0 [ 286.354000][ T28] ? __lock_acquire+0x1f60/0x1f60 [ 286.359043][ T28] ? folio_wait_bit+0x20/0x20 [ 286.363764][ T28] ? pfn_swap_entry_to_page+0x370/0x370 [ 286.369413][ T28] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 286.375462][ T28] gfs2_jhead_process_page+0x195/0x800 [ 286.381708][ T28] ? asm_sysvec_reschedule_ipi+0x16/0x20 [ 286.387379][ T28] ? lockdep_hardirqs_on+0x8d/0x130 [ 286.392656][ T28] ? gfs2_end_log_read+0x7d0/0x7d0 [ 286.397785][ T28] ? asm_sysvec_reschedule_ipi+0x16/0x20 [ 286.403487][ T28] ? gfs2_jhead_process_page+0x4f2/0x800 [ 286.409130][ T28] ? gfs2_find_jhead+0xccc/0xea0 [ 286.414141][ T28] gfs2_find_jhead+0xcef/0xea0 [ 286.418924][ T28] ? gfs2_end_log_write+0x7e0/0x7e0 [ 286.424172][ T28] ? gfs2_jdesc_check+0x1ed/0x290 [ 286.429208][ T28] gfs2_recover_func+0x65b/0x1f30 [ 286.434335][ T28] ? lockdep_unlock+0x144/0x2e0 [ 286.439189][ T28] ? lockdep_lock+0x290/0x290 [ 286.443913][ T28] ? __get_log_header+0x4e0/0x4e0 [ 286.448947][ T28] ? lockdep_unlock+0x144/0x2e0 [ 286.453859][ T28] ? lockdep_lock+0x290/0x290 [ 286.458544][ T28] ? mark_lock+0x2a1/0x350 [ 286.463004][ T28] ? __lock_acquire+0x1292/0x1f60 [ 286.468065][ T28] ? rcu_read_lock_sched_held+0x87/0x110 [ 286.473836][ T28] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 286.479852][ T28] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.485811][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.491093][ T28] process_one_work+0x877/0xdb0 [ 286.496482][ T28] ? worker_detach_from_pool+0x260/0x260 [ 286.502305][ T28] ? _raw_spin_lock_irq+0xba/0xf0 [ 286.507356][ T28] ? _raw_spin_lock_irqsave+0x100/0x100 [ 286.513007][ T28] worker_thread+0xb14/0x1330 [ 286.517733][ T28] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.523826][ T28] kthread+0x266/0x300 [ 286.527907][ T28] ? rcu_lock_release+0x20/0x20 [ 286.532835][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.537442][ T28] ret_from_fork+0x1f/0x30 [ 286.541979][ T28] [ 286.545070][ T28] INFO: task syz-executor253:5072 blocked for more than 143 seconds. [ 286.553203][ T28] Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 286.560406][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.569155][ T28] task:syz-executor253 state:D stack:20112 pid:5072 ppid:5071 flags:0x00004004 [ 286.578460][ T28] Call Trace: [ 286.581791][ T28] [ 286.584733][ T28] __schedule+0x995/0xe20 [ 286.589063][ T28] ? release_firmware_map_entry+0x180/0x180 [ 286.595040][ T28] ? _raw_spin_unlock_irqrestore+0x110/0x120 [ 286.601047][ T28] schedule+0xcb/0x190 [ 286.605173][ T28] bit_wait+0xe/0xc0 [ 286.609081][ T28] __wait_on_bit+0xb5/0x170 [ 286.613647][ T28] ? out_of_line_wait_on_bit_lock+0x240/0x240 [ 286.619725][ T28] out_of_line_wait_on_bit+0x1c3/0x240 [ 286.625229][ T28] ? out_of_line_wait_on_bit_lock+0x240/0x240 [ 286.631307][ T28] ? __wait_on_bit+0x170/0x170 [ 286.636137][ T28] ? bit_waitqueue+0x30/0x30 [ 286.640803][ T28] ? gfs2_journal_wipe+0xa40/0xa40 [ 286.646150][ T28] gfs2_recover_journal+0xda/0x120 [ 286.651328][ T28] init_journal+0x18a5/0x22c0 [ 286.656166][ T28] ? vsnprintf+0x1cb0/0x1cb0 [ 286.660806][ T28] ? init_inodes+0xdc/0x340 [ 286.665373][ T28] ? _compound_head+0x130/0x130 [ 286.670239][ T28] ? ptr_to_hashval+0x70/0x70 [ 286.674984][ T28] ? init_sb+0xb7b/0x12b0 [ 286.679326][ T28] ? snprintf+0xc0/0x110 [ 286.683618][ T28] ? init_inodes+0xdc/0x340 [ 286.688135][ T28] ? vscnprintf+0x80/0x80 [ 286.692535][ T28] init_inodes+0xdc/0x340 [ 286.696876][ T28] gfs2_fill_super+0x1bb2/0x2700 [ 286.701890][ T28] ? gfs2_reconfigure+0xce0/0xce0 [ 286.706943][ T28] ? ptr_to_hashval+0x70/0x70 [ 286.711690][ T28] ? up_write+0x19a/0x580 [ 286.716032][ T28] ? init_locking+0xbd/0x220 [ 286.720622][ T28] ? vscnprintf+0x80/0x80 [ 286.724994][ T28] ? set_blocksize+0x1ec/0x390 [ 286.729849][ T28] ? sb_set_blocksize+0x95/0xf0 [ 286.734763][ T28] get_tree_bdev+0x400/0x620 [ 286.739431][ T28] ? gfs2_reconfigure+0xce0/0xce0 [ 286.744692][ T28] gfs2_get_tree+0x50/0x210 [ 286.749208][ T28] ? bpf_lsm_capable+0x5/0x10 [ 286.753980][ T28] vfs_get_tree+0x88/0x270 [ 286.758418][ T28] do_new_mount+0x289/0xad0 [ 286.763010][ T28] ? do_move_mount_old+0x150/0x150 [ 286.768149][ T28] ? user_path_at_empty+0x149/0x1a0 [ 286.773492][ T28] __se_sys_mount+0x2d3/0x3c0 [ 286.778228][ T28] ? __x64_sys_mount+0xc0/0xc0 [ 286.783077][ T28] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 286.789085][ T28] ? __x64_sys_mount+0x1c/0xc0 [ 286.793920][ T28] do_syscall_64+0x3d/0xb0 [ 286.798348][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.804289][ T28] RIP: 0033:0x7f0b6c21691a [ 286.808723][ T28] RSP: 002b:00007ffc89d65db8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 286.817262][ T28] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0b6c21691a [ 286.825304][ T28] RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007ffc89d65dd0 [ 286.833379][ T28] RBP: 00007ffc89d65dd0 R08: 00007ffc89d65e10 R09: 0000000000000002 [ 286.841459][ T28] R10: 0000000000010010 R11: 0000000000000282 R12: 0000000000000004 [ 286.850075][ T28] R13: 0000555555b9b2c0 R14: 0000000000010010 R15: 00007ffc89d65e10 [ 286.858267][ T28] [ 286.861312][ T28] [ 286.861312][ T28] Showing all locks held in the system: [ 286.869207][ T28] 1 lock held by rcu_tasks_kthre/12: [ 286.874547][ T28] #0: ffffffff8d326e90 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 286.885065][ T28] 1 lock held by rcu_tasks_trace/13: [ 286.890366][ T28] #0: ffffffff8d327690 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 286.901506][ T28] 2 locks held by kworker/0:1/14: [ 286.906666][ T28] #0: ffff88801958e138 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 [ 286.917519][ T28] #1: ffffc90000137d00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 [ 286.928757][ T28] 1 lock held by khungtaskd/28: [ 286.933772][ T28] #0: ffffffff8d326cc0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.943191][ T28] 2 locks held by getty/4750: [ 286.947853][ T28] #0: ffff88802c55b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.957703][ T28] #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 [ 286.967849][ T28] 1 lock held by syz-executor253/5072: [ 286.973353][ T28] #0: ffff88802b1d40e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x212/0x920 [ 286.983585][ T28] [ 286.985908][ T28] ============================================= [ 286.985908][ T28] [ 286.994637][ T28] NMI backtrace for cpu 0 [ 286.998960][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 287.008396][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 287.018433][ T28] Call Trace: [ 287.021697][ T28] [ 287.024615][ T28] dump_stack_lvl+0x1b1/0x290 [ 287.029286][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 287.034738][ T28] ? panic+0x710/0x710 [ 287.038808][ T28] ? nmi_cpu_backtrace+0x205/0x4f0 [ 287.043942][ T28] nmi_cpu_backtrace+0x46f/0x4f0 [ 287.048882][ T28] ? vprintk_emit+0x109/0x1e0 [ 287.053566][ T28] ? nmi_trigger_cpumask_backtrace+0x420/0x420 [ 287.059717][ T28] ? _printk+0xc0/0x100 [ 287.063876][ T28] ? panic+0x710/0x710 [ 287.067938][ T28] ? __wake_up_klogd+0xcd/0x100 [ 287.072785][ T28] ? panic+0x710/0x710 [ 287.076848][ T28] ? nmi_trigger_cpumask_backtrace+0xc9/0x420 [ 287.082915][ T28] nmi_trigger_cpumask_backtrace+0x1ba/0x420 [ 287.088894][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.095005][ T28] watchdog+0xcd5/0xd20 [ 287.099211][ T28] kthread+0x266/0x300 [ 287.103275][ T28] ? hungtask_pm_notify+0x50/0x50 [ 287.108298][ T28] ? kthread_blkcg+0xd0/0xd0 [ 287.112885][ T28] ret_from_fork+0x1f/0x30 [ 287.117311][ T28] [ 287.120421][ T28] Sending NMI from CPU 0 to CPUs 1: [ 287.125692][ C1] NMI backtrace for cpu 1 [ 287.125701][ C1] CPU: 1 PID: 2847 Comm: kworker/u4:6 Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 287.125715][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 287.125724][ C1] Workqueue: events_unbound toggle_allocation_gate [ 287.125779][ C1] RIP: 0010:switch_mm_irqs_off+0x51e/0x9c0 [ 287.125835][ C1] Code: e8 a7 f3 ff ff 41 0f b7 cd 81 f9 ff 0f 00 00 48 8d 9c 24 90 00 00 00 0f 83 c4 01 00 00 41 ff c5 41 0f b7 cd 48 09 c8 0f 22 d8 <48> c7 c6 ff ff ff ff 4c 8b 6c 24 20 e9 c0 00 00 00 49 8d 9f 80 00 [ 287.125846][ C1] RSP: 0018:ffffc9000b5c7740 EFLAGS: 00000093 [ 287.125856][ C1] RAX: 000000000d08e000 RBX: ffffc9000b5c77d0 RCX: ffff888028c91d40 [ 287.125865][ C1] RDX: 0000000000000000 RSI: 000000000d08e000 RDI: 000000001fffffff [ 287.125874][ C1] RBP: ffffc9000b5c7830 R08: ffffffff813e283c R09: fffffbfff1a80adf [ 287.125883][ C1] R10: fffffbfff1a80adf R11: 1ffffffff1a80ade R12: dffffc0000000000 [ 287.125892][ C1] R13: 0000000000000000 R14: ffffffff8d405140 R15: 0000000000000000 [ 287.125900][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 287.125911][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.125920][ C1] CR2: 00007fb907dfc990 CR3: 000000000d08e000 CR4: 00000000003506e0 [ 287.125931][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.125939][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.125947][ C1] Call Trace: [ 287.125951][ C1] [ 287.125958][ C1] ? __rwlock_init+0x140/0x140 [ 287.125993][ C1] ? switch_mm+0x150/0x150 [ 287.126010][ C1] ? text_poke_memcpy+0x5/0x10 [ 287.126040][ C1] ? text_poke_memcpy+0x5/0x10 [ 287.126062][ C1] ? kmem_cache_alloc_lru+0xb5/0x320 [ 287.126083][ C1] __text_poke+0x69e/0x900 [ 287.126097][ C1] ? kmem_cache_alloc_lru+0xb5/0x320 [ 287.126110][ C1] ? __text_poke+0x900/0x900 [ 287.126124][ C1] ? text_poke+0x90/0x90 [ 287.126137][ C1] ? perf_event_text_poke+0x233/0x310 [ 287.126175][ C1] ? perf_event_bpf_output+0x220/0x220 [ 287.126194][ C1] ? trace_contention_end+0x72/0x1d0 [ 287.126213][ C1] text_poke_bp_batch+0x64c/0x850 [ 287.126226][ C1] ? arch_jump_label_transform_apply+0xe/0x20 [ 287.126263][ C1] ? __kmem_cache_alloc_bulk+0xb5/0x3e0 [ 287.126278][ C1] ? text_poke_loc_init+0x500/0x500 [ 287.126294][ C1] ? __jump_label_update+0x38e/0x3b0 [ 287.126310][ C1] text_poke_finish+0x16/0x30 [ 287.126323][ C1] arch_jump_label_transform_apply+0x13/0x20 [ 287.126342][ C1] static_key_disable_cpuslocked+0xc8/0x1b0 [ 287.126357][ C1] static_key_disable+0x16/0x20 [ 287.126370][ C1] toggle_allocation_gate+0x1a8/0x240 [ 287.126385][ C1] ? virt_to_slab+0x2c0/0x2c0 [ 287.126398][ C1] ? rcu_read_lock_sched_held+0x87/0x110 [ 287.126413][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 287.126428][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 287.126448][ C1] ? do_raw_spin_unlock+0x134/0x8a0 [ 287.126469][ C1] process_one_work+0x877/0xdb0 [ 287.126492][ C1] ? worker_detach_from_pool+0x260/0x260 [ 287.126511][ C1] ? _raw_spin_lock_irq+0xba/0xf0 [ 287.126528][ C1] ? _raw_spin_lock_irqsave+0x100/0x100 [ 287.126549][ C1] worker_thread+0xb14/0x1330 [ 287.126571][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 287.126595][ C1] kthread+0x266/0x300 [ 287.126608][ C1] ? rcu_lock_release+0x20/0x20 [ 287.126624][ C1] ? kthread_blkcg+0xd0/0xd0 [ 287.126638][ C1] ret_from_fork+0x1f/0x30 [ 287.126661][ C1] [ 287.126688][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 287.475315][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0 [ 287.484762][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 287.494808][ T28] Call Trace: [ 287.498083][ T28] [ 287.501009][ T28] dump_stack_lvl+0x1b1/0x290 [ 287.505690][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 287.511146][ T28] ? panic+0x710/0x710 [ 287.515214][ T28] ? vscnprintf+0x59/0x80 [ 287.519543][ T28] panic+0x2d6/0x710 [ 287.523431][ T28] ? asm_sysvec_call_function_single+0x16/0x20 [ 287.529586][ T28] ? nmi_trigger_cpumask_backtrace+0x2d0/0x420 [ 287.535917][ T28] ? memcpy_page_flushcache+0x100/0x100 [ 287.541554][ T28] ? nmi_trigger_cpumask_backtrace+0x2d9/0x420 [ 287.547705][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.553769][ T28] watchdog+0xd15/0xd20 [ 287.557934][ T28] kthread+0x266/0x300 [ 287.561999][ T28] ? hungtask_pm_notify+0x50/0x50 [ 287.567020][ T28] ? kthread_blkcg+0xd0/0xd0 [ 287.571616][ T28] ret_from_fork+0x1f/0x30 [ 287.576047][ T28] [ 287.579208][ T28] Kernel Offset: disabled [ 287.583527][ T28] Rebooting in 86400 seconds..