Warning: Permanently added '10.128.1.58' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 673.607126][ C0] hrtimer: interrupt took 32778 ns [ 778.639050][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 778.646056][ C1] rcu: (detected by 1, t=10502 jiffies, g=5513, q=82) [ 778.652946][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295015017-4295004515), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 778.666324][ C1] syz-executor918 R running task 26560 7905 7883 0x00000000 [ 778.674417][ C1] Call Trace: [ 778.677752][ C1] [ 778.680727][ C1] sched_show_task.cold+0x291/0x2fc [ 778.686045][ C1] rcu_sched_clock_irq.cold+0xa10/0xa4a [ 778.691943][ C1] update_process_times+0x32/0x80 [ 778.697039][ C1] tick_sched_handle+0xa2/0x190 [ 778.701924][ C1] tick_sched_timer+0x47/0x130 [ 778.706714][ C1] __hrtimer_run_queues+0x33e/0xde0 [ 778.711933][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 778.717238][ C1] ? hrtimer_start_range_ns+0xc80/0xc80 [ 778.722907][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 778.728740][ C1] ? ktime_get_update_offsets_now+0x2d9/0x440 [ 778.734853][ C1] hrtimer_interrupt+0x314/0x770 [ 778.739899][ C1] smp_apic_timer_interrupt+0x120/0x570 [ 778.745490][ C1] apic_timer_interrupt+0xf/0x20 [ 778.750543][ C1] [ 778.753510][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 778.759597][ C1] Code: 89 25 b4 7e ec 08 41 bc f4 ff ff ff e8 cd 5d ea ff 48 c7 05 9e 7e ec 08 00 00 00 00 e9 a4 e9 ff ff 90 90 90 90 90 90 90 90 90 <55> 48 89 e5 48 8b 75 08 65 48 8b 04 25 00 ee 01 00 65 8b 15 c8 60 [ 778.779501][ C1] RSP: 0018:ffff8880975af300 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 778.787935][ C1] RAX: 0000000000000000 RBX: 000000000000000e RCX: ffffffff818b6bcc [ 778.795947][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 778.804018][ C1] RBP: ffff8880975af358 R08: ffff8880a7c40040 R09: 0000000000000003 [ 778.812009][ C1] R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: ffffea00020c67c0 [ 778.820013][ C1] R13: 0000000000100cca R14: dffffc0000000000 R15: 0000000000000000 [ 778.828152][ C1] ? pagecache_get_page+0xac/0x740 [ 778.833299][ C1] ? pagecache_get_page+0x496/0x740 [ 778.838515][ C1] grab_cache_page_write_begin+0x75/0xb0 [ 778.844245][ C1] ext4_da_write_begin+0x2d7/0xec0 [ 778.849386][ C1] ? ktime_get_coarse_real_ts64+0xf0/0x2b0 [ 778.855209][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 778.861486][ C1] ? ext4_write_begin+0x1480/0x1480 [ 778.866793][ C1] ? csum_and_copy_to_iter+0x1630/0x1630 [ 778.872448][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 778.878191][ C1] ? ktime_get_coarse_real_ts64+0x1ba/0x2b0 [ 778.884105][ C1] generic_perform_write+0x231/0x530 [ 778.889425][ C1] ? page_endio+0x780/0x780 [ 778.894015][ C1] ? current_time+0x140/0x140 [ 778.898715][ C1] ? generic_write_check_limits+0x2a0/0x2a0 [ 778.904685][ C1] ? lock_acquire+0x16f/0x3f0 [ 778.909384][ C1] ? ext4_file_write_iter+0x257/0x11c0 [ 778.914858][ C1] __generic_file_write_iter+0x25e/0x630 [ 778.920511][ C1] ext4_file_write_iter+0x346/0x11c0 [ 778.925888][ C1] ? aa_file_perm+0x432/0xeb0 [ 778.930591][ C1] ? ext4_file_mmap+0x410/0x410 [ 778.935444][ C1] ? aa_path_link+0x460/0x460 [ 778.940458][ C1] ? splice_direct_to_actor+0x369/0x970 [ 778.946024][ C1] ? do_splice_direct+0x1da/0x2a0 [ 778.951113][ C1] ? do_sendfile+0x597/0xd00 [ 778.955724][ C1] ? __x64_sys_sendfile64+0x15a/0x220 [ 778.961135][ C1] ? do_syscall_64+0x103/0x610 [ 778.966259][ C1] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 778.972349][ C1] ? __lock_acquire+0x548/0x3fb0 [ 778.977303][ C1] ? current_time+0x6b/0x140 [ 778.981905][ C1] ? find_held_lock+0x35/0x130 [ 778.986686][ C1] do_iter_readv_writev+0x5e1/0x8e0 [ 778.991900][ C1] ? vfs_dedupe_file_range+0x780/0x780 [ 778.997369][ C1] ? apparmor_file_permission+0x25/0x30 [ 779.002931][ C1] ? rw_verify_area+0x118/0x360 [ 779.007808][ C1] do_iter_write+0x184/0x610 [ 779.012488][ C1] ? rcu_read_lock_sched_held+0x110/0x130 [ 779.018313][ C1] ? __kmalloc+0x5d5/0x740 [ 779.022843][ C1] vfs_iter_write+0x77/0xb0 [ 779.027394][ C1] iter_file_splice_write+0x662/0xbe0 [ 779.032780][ C1] ? atime_needs_update+0x5f0/0x5f0 [ 779.038010][ C1] ? page_cache_pipe_buf_confirm+0x2b0/0x2b0 [ 779.044030][ C1] ? rw_verify_area+0x118/0x360 [ 779.048904][ C1] ? page_cache_pipe_buf_confirm+0x2b0/0x2b0 [ 779.054911][ C1] direct_splice_actor+0x126/0x1a0 [ 779.060227][ C1] splice_direct_to_actor+0x369/0x970 [ 779.065737][ C1] ? generic_pipe_buf_nosteal+0x10/0x10 [ 779.071314][ C1] ? do_splice_to+0x190/0x190 [ 779.076015][ C1] ? rw_verify_area+0x118/0x360 [ 779.080902][ C1] do_splice_direct+0x1da/0x2a0 [ 779.085885][ C1] ? splice_direct_to_actor+0x970/0x970 [ 779.091457][ C1] ? rcu_read_lock_sched_held+0x110/0x130 [ 779.097204][ C1] ? rcu_sync_lockdep_assert+0x73/0xb0 [ 779.102795][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 779.109142][ C1] ? __sb_start_write+0x1ac/0x360 [ 779.114201][ C1] do_sendfile+0x597/0xd00 [ 779.118679][ C1] ? do_compat_pwritev64+0x1c0/0x1c0 [ 779.123994][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 779.131642][ C1] ? _copy_from_user+0xdd/0x150 [ 779.136520][ C1] __x64_sys_sendfile64+0x15a/0x220 [ 779.141738][ C1] ? __ia32_sys_sendfile+0x230/0x230 [ 779.147129][ C1] ? do_syscall_64+0x26/0x610 [ 779.151823][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 779.157227][ C1] ? trace_hardirqs_on+0x67/0x230 [ 779.162279][ C1] do_syscall_64+0x103/0x610 [ 779.166897][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 779.172805][ C1] RIP: 0033:0x446989 [ 779.176755][ C1] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 779.196477][ C1] RSP: 002b:00007f69fcde7da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 779.204909][ C1] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446989 [ 779.212899][ C1] RDX: 0000000020000000 RSI: 0000000000000004 RDI: 0000000000000004 [ 779.220891][ C1] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 779.228878][ C1] R10: 00008080fffffffe R11: 0000000000000246 R12: 00000000006dbc2c [ 779.236870][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 779.244892][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g5513 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 779.255996][ C1] rcu: RCU grace-period kthread stack dump: [ 779.262088][ C1] rcu_preempt R running task 29304 10 2 0x80000000 [ 779.270007][ C1] Call Trace: [ 779.273361][ C1] __schedule+0x813/0x1cc0 [ 779.277807][ C1] ? __sched_text_start+0x8/0x8 [ 779.282675][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 779.288525][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 779.293831][ C1] ? trace_hardirqs_on+0x67/0x230 [ 779.298871][ C1] schedule+0x92/0x180 [ 779.302978][ C1] schedule_timeout+0x4db/0xfd0 [ 779.307850][ C1] ? usleep_range+0x170/0x170 [ 779.312635][ C1] ? trace_hardirqs_on+0x67/0x230 [ 779.317677][ C1] ? kasan_check_read+0x11/0x20 [ 779.322554][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 779.328202][ C1] ? prepare_to_swait_exclusive+0x120/0x120 [ 779.334136][ C1] rcu_gp_kthread+0x962/0x17b0 [ 779.338925][ C1] ? kasan_check_write+0x14/0x20 [ 779.343880][ C1] ? wait_rcu_exp_gp+0x50/0x50 [ 779.348657][ C1] ? trace_hardirqs_on+0x67/0x230 [ 779.353696][ C1] ? kasan_check_read+0x11/0x20 [ 779.358564][ C1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 779.364384][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 779.370886][ C1] ? __kthread_parkme+0xfb/0x1b0 [ 779.375906][ C1] kthread+0x357/0x430 [ 779.379995][ C1] ? wait_rcu_exp_gp+0x50/0x50 [ 779.384783][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 779.391283][ C1] ret_from_fork+0x3a/0x50