***************** crashinfo --stacksummary ***************** /exports/testreports/62306/testresults/replay-single1-ldiskfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg137-server-timeout-core (4.18.0rh8.10-debug) ------- 84 stacks like that: ---------- #0 __schedule #1 schedule #2 ptlrpc_wait_event #3 ptlrpc_main #4 kthread #5 ret_from_fork youngest=1s(pid=10979), oldest=8986s(pid=8401) ........................ ldlm_cb00_000 1 times ldlm_cb00_001 1 times ldlm_cb00_002 1 times ldlm_cn00_000 1 times ldlm_cn00_001 1 times ldlm_cn00_002 1 times ldlm_cn00_003 1 times ldlm_cn00_004 1 times ldlm_cn00_005 1 times ll_mgs_0000 1 times ll_mgs_0001 1 times ll_mgs_0002 1 times ll_ost00_000 1 times ll_ost00_001 1 times ll_ost00_002 1 times ll_ost00_003 1 times ll_ost00_004 1 times ll_ost00_005 1 times ll_ost00_006 1 times ll_ost00_007 1 times ll_ost00_008 1 times ll_ost00_009 1 times ll_ost00_010 1 times ll_ost00_011 1 times ll_ost00_012 1 times ll_ost00_013 1 times ll_ost00_014 1 times ll_ost00_015 1 times ll_ost00_016 1 times ll_ost00_017 1 times ll_ost00_018 1 times ll_ost00_019 1 times ll_ost00_020 1 times ll_ost00_021 1 times ll_ost00_022 1 times ll_ost00_023 1 times ll_ost00_024 1 times ll_ost00_025 1 times ll_ost00_026 1 times ll_ost00_027 1 times ll_ost00_028 1 times ll_ost_create00 3 times ll_ost_io00_000 1 times ll_ost_io00_001 1 times ll_ost_io00_002 1 times ll_ost_io00_003 1 times ll_ost_io00_004 1 times ll_ost_io00_005 1 times ll_ost_io00_006 1 times ll_ost_io00_007 1 times ll_ost_io00_008 1 times ll_ost_io00_009 1 times ll_ost_io00_010 1 times ll_ost_io00_011 1 times ll_ost_io00_012 1 times ll_ost_io00_013 1 times ll_ost_io00_014 1 times ll_ost_io00_015 1 times ll_ost_io00_016 1 times ll_ost_out00_00 4 times ll_ost_seq00_00 2 times mdt00_000 1 times mdt00_001 1 times mdt00_002 1 times mdt00_003 1 times mdt_fld_0000 1 times mdt_fld_0001 1 times mdt_io00_000 1 times mdt_io00_001 1 times mdt_io00_002 1 times mdt_out00_000 1 times mdt_out00_001 1 times mdt_rdpg00_000 1 times mdt_rdpg00_001 1 times mdt_seqm_0000 1 times mdt_seqm_0001 1 times mdt_seqs_0000 1 times mdt_seqs_0001 1 times ------- 35 stacks like that: ---------- #0 __schedule #1 schedule #2 rescuer_thread #3 kthread #4 ret_from_fork youngest=30s(pid=201200), oldest=9233s(pid=3) ........................ acpi_thermal_pm 1 times ata_sff 1 times blkcg_punt_bio 1 times crypto 1 times edac-poller 1 times ext4-rsv-conver 1 times ipv6_addrconf 1 times kblockd 1 times kdmflush/252:0 1 times kdmflush/252:1 1 times kdmflush/252:2 1 times kdmflush/252:3 1 times kintegrityd 1 times knbd0-recv 1 times kstrp 1 times kthrotld 1 times ldiskfs-misc 4 times md 1 times md_bitmap 1 times mm_percpu_wq 1 times netns 1 times nfsiod 1 times rcu_gp 1 times rcu_par_gp 1 times rpciod 1 times scsi_tmf_0 1 times scsi_tmf_1 1 times slub_flushwq 1 times tpm_dev_wq 1 times writeback 1 times xprtiod 1 times zswap-shrink 1 times ------- 32 stacks like that: ---------- #0 __schedule #1 schedule #2 worker_thread #3 kthread #4 ret_from_fork youngest=0s(pid=167099), oldest=9223s(pid=656) ........................ kworker/0:0 1 times kworker/0:0H 1 times kworker/0:1 1 times kworker/0:2 1 times kworker/0:2H 1 times kworker/0:3 1 times kworker/0:5 1 times kworker/1:0 1 times kworker/1:1 1 times kworker/1:1H 1 times kworker/1:2H 1 times kworker/1:4 1 times kworker/1:7 1 times kworker/2:0 1 times kworker/2:0H 1 times kworker/2:1 1 times kworker/2:2H 1 times kworker/2:3 1 times kworker/2:4 1 times kworker/3:0 1 times kworker/3:0H 1 times kworker/3:1 1 times kworker/3:2 1 times kworker/3:2H 1 times kworker/3:3 1 times kworker/3:4 1 times kworker/3:9 1 times kworker/u8:0 1 times kworker/u8:1 1 times kworker/u8:2 1 times kworker/u8:4 1 times kworker/u9:1 1 times ------- 16 stacks like that: ---------- #0 __schedule #1 schedule #2 smpboot_thread_fn #3 kthread #4 ret_from_fork youngest=0s(pid=14), oldest=9220s(pid=17) ........................ cpuhp/0 1 times cpuhp/1 1 times cpuhp/2 1 times cpuhp/3 1 times ksoftirqd/0 1 times ksoftirqd/1 1 times ksoftirqd/2 1 times ksoftirqd/3 1 times migration/0 1 times migration/1 1 times migration/2 1 times migration/3 1 times watchdog/0 1 times watchdog/1 1 times watchdog/2 1 times watchdog/3 1 times ------- 14 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 poll_schedule_timeout.constprop.11 #5 do_sys_poll #6 __x64_sys_poll #7 do_syscall_64 #8 entry_SYSCALL_64_after_hwframe youngest=0s(pid=1372), oldest=9216s(pid=1022) ........................ NetworkManager 1 times gdbus 2 times gmain 3 times irqbalance 1 times polkitd 2 times rngd 1 times rpcbind 1 times sshd 1 times tuned 2 times ------- 10 stacks like that: ---------- #0 __schedule #1 schedule #2 futex_wait_queue_me #3 futex_wait #4 do_futex #5 __x64_sys_futex #6 do_syscall_64 #7 entry_SYSCALL_64_after_hwframe youngest=1s(pid=1120), oldest=9216s(pid=1051) ........................ JS Helper 4 times gssproxy 5 times rs:main Q:Reg 1 times ------- 8 stacks like that: ---------- #0 __schedule #1 schedule #2 taskq_thread #3 kthread #4 ret_from_fork youngest=9140s(pid=4335), oldest=9143s(pid=4332) ........................ arc_prune 1 times dbu_evict 1 times spl_delay_taskq 1 times spl_dynamic_tas 1 times spl_kmem_cache 1 times spl_system_task 1 times z_vdev_file 1 times zvol_tq-0 1 times ------- 7 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 poll_schedule_timeout.constprop.11 #5 do_select #6 core_sys_select #7 kern_select #8 __x64_sys_select #9 do_syscall_64 #10 entry_SYSCALL_64_after_hwframe youngest=0s(pid=1369), oldest=9214s(pid=1067) ........................ agetty 3 times dhclient 1 times sshd 1 times tuned 2 times ------- 6 stacks like that: ---------- #0 __schedule #1 schedule #2 osp_precreate_thread #3 kthread #4 ret_from_fork youngest=1s(pid=198932), oldest=4s(pid=198930) ........................ osp-pre-0-0 1 times osp-pre-0-1 2 times osp-pre-1-0 2 times osp-pre-1-1 1 times ------- 6 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 qsd_upd_thread #4 kthread #5 ret_from_fork youngest=24s(pid=201229), oldest=37s(pid=198944) ........................ lquota_wb_lustr 6 times ------- 6 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 ep_poll #5 do_epoll_wait #6 __x64_sys_epoll_wait #7 do_syscall_64 #8 entry_SYSCALL_64_after_hwframe youngest=0s(pid=1020), oldest=9216s(pid=1044) ........................ dbus-daemon 1 times gssproxy 1 times systemd 2 times systemd-journal 1 times systemd-logind 1 times ------- 5 stacks like that: ---------- #0 __schedule #1 schedule #2 ldlm_bl_thread_main #3 kthread #4 ret_from_fork youngest=0s(pid=18228), oldest=4s(pid=6502) ........................ ldlm_bl_01 1 times ldlm_bl_02 1 times ldlm_bl_03 1 times ldlm_bl_04 1 times ldlm_bl_05 1 times ------- 5 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 wait_woken #4 ptlrpcd #5 kthread #6 ret_from_fork youngest=1s(pid=3655), oldest=19s(pid=3653) ........................ ptlrpcd_00_00 1 times ptlrpcd_00_01 1 times ptlrpcd_00_02 1 times ptlrpcd_00_03 1 times ptlrpcd_rcv 1 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 osp_sync_process_queues #3 llog_process_thread #4 llog_process_or_fork #5 llog_cat_process_cb #6 llog_process_thread #7 llog_process_or_fork #8 llog_cat_process_or_fork #9 llog_cat_process #10 osp_sync_thread #11 kthread #12 ret_from_fork youngest=24s(pid=201217), oldest=61s(pid=198933) ........................ osp-syn-0-0 1 times osp-syn-0-1 1 times osp-syn-1-0 1 times osp-syn-1-1 1 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 ksocknal_connd #4 kthread #5 ret_from_fork youngest=8983s(pid=3645), oldest=9064s(pid=3642) ........................ socknal_cd00 1 times socknal_cd01 1 times socknal_cd02 1 times socknal_cd03 1 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 ksocknal_scheduler #3 kthread #4 ret_from_fork youngest=3s(pid=3649), oldest=3s(pid=3647) ........................ socknal_sd00_00 1 times socknal_sd00_01 1 times socknal_sd00_02 1 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 kjournald2 #3 kthread #4 ret_from_fork youngest=13s(pid=198902), oldest=9223s(pid=668) ........................ jbd2/dm-0-8 1 times jbd2/dm-1-8 1 times jbd2/nbd0-8 1 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule_idle #2 do_idle #3 cpu_startup_entry #4 start_secondary #5 secondary_startup_64_no_verify youngest=9233s(pid=0), oldest=9233s(pid=0) ........................ swapper/1 1 times swapper/2 1 times swapper/3 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 mgs_ir_notify #3 kthread #4 ret_from_fork youngest=24s(pid=201207), oldest=29s(pid=201202) ........................ mgs_lustre_noti 1 times mgs_params_noti 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 distribute_txn_commit_thread #3 kthread #4 ret_from_fork youngest=19s(pid=198945), oldest=24s(pid=201230) ........................ dist_txn-0 1 times dist_txn-1 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 osp_send_update_thread #3 kthread #4 ret_from_fork youngest=4s(pid=198928), oldest=24s(pid=201213) ........................ osp_up0-1 1 times osp_up1-0 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 mdt_restriper_main #3 kthread #4 ret_from_fork youngest=24s(pid=201212), oldest=100s(pid=198927) ........................ mdt_restriper_0 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 ofd_id_repair_thread_main #3 kthread #4 ret_from_fork youngest=454s(pid=188389), oldest=8997s(pid=9469) ........................ ofd_id_repair 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 ofd_inconsistency_verification_main #3 kthread #4 ret_from_fork youngest=454s(pid=188388), oldest=8997s(pid=9468) ........................ inconsistency_v 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 cv_timedwait_hires_common #5 cv_timedwait_idle_hires #6 zthr_procedure #7 thread_generic_wrapper #8 kthread #9 ret_from_fork youngest=0s(pid=4341), oldest=0s(pid=4340) ........................ arc_evict 1 times arc_reap 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 ptlrpc_hr_main #3 kthread #4 ret_from_fork youngest=19s(pid=3641), oldest=19s(pid=3640) ........................ ptlrpc_hr00_000 1 times ptlrpc_hr00_001 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 scsi_error_handler #3 kthread #4 ret_from_fork youngest=9228s(pid=458), oldest=9228s(pid=469) ........................ scsi_eh_0 1 times scsi_eh_1 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 rcu_tasks_kthread #3 kthread #4 ret_from_fork youngest=9233s(pid=11), oldest=9233s(pid=10) ........................ rcu_tasks_rude_ 1 times rcu_tasks_trace 1 times ------- 1 stacks like that: ---------- #-1 native_write_msr #0 x2apic_send_IPI #1 native_send_call_func_single_ipi #2 __smp_call_single_queue #3 ttwu_queue_wakelist #4 try_to_wake_up #5 wake_up_process #6 process_timeout #7 call_timer_fn #8 run_timer_softirq #9 __softirqentry_text_start #10 irq_exit_rcu #11 irq_exit #12 smp_apic_timer_interrupt #13 apic_timer_interrupt #14 apic_timer_interrupt #-1 check_stack_object #15 __check_object_size #16 probe_kernel_read #17 kmem_cache_alloc #18 __anon_vma_prepare #19 do_anonymous_page #20 __handle_mm_fault #21 handle_mm_fault #22 do_user_addr_fault #23 __do_page_fault #24 do_page_fault #25 page_fault youngest=0s(pid=201850), oldest=0s(pid=201850) ........................ modprobe 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 wait_for_completion_killable #4 call_usermodehelper_exec #5 __request_module #6 netlink_create #7 __sock_create #8 __sys_socket #9 __x64_sys_socket #10 do_syscall_64 #11 entry_SYSCALL_64_after_hwframe youngest=0s(pid=201846), oldest=0s(pid=201846) ........................ sshd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 qmt_reba_thread #3 kthread #4 ret_from_fork youngest=24s(pid=201210), oldest=24s(pid=201210) ........................ qmt_reba_lustre 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 do_sigtimedwait #5 __x64_sys_rt_sigtimedwait #6 do_syscall_64 #7 entry_SYSCALL_64_after_hwframe youngest=40s(pid=200722), oldest=40s(pid=200722) ........................ (sd-pam) 1 times ------- 1 stacks like that: ---------- #-1 smp_call_function_many_cond #0 on_each_cpu #1 flush_tlb_kernel_range #2 free_unmap_vmap_area #3 remove_vm_area #4 __vunmap #5 free_work #6 process_one_work #7 worker_thread #8 kthread #9 ret_from_fork youngest=0s(pid=200698), oldest=0s(pid=200698) ........................ kworker/1:2 1 times ------- 1 stacks like that: ---------- #-1 should_fail_bio #0 generic_make_request_checks #1 generic_make_request #2 submit_bio #3 submit_bh_wbc #4 submit_bh #5 jbd2_journal_commit_transaction #6 kjournald2 #7 kthread #8 ret_from_fork youngest=0s(pid=188383), oldest=0s(pid=188383) ........................ jbd2/dm-2-8 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 do_wait #3 kernel_wait #4 call_usermodehelper_exec_work #5 process_one_work #6 worker_thread #7 kthread #8 ret_from_fork youngest=0s(pid=173926), oldest=0s(pid=173926) ........................ kworker/u8:3 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 io_schedule #3 bit_wait_io #4 __wait_on_bit #5 out_of_line_wait_on_bit #6 __wait_on_buffer #7 jbd2_journal_commit_transaction #8 kjournald2 #9 kthread #10 ret_from_fork youngest=0s(pid=9455), oldest=0s(pid=9455) ........................ jbd2/dm-3-8 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 mgc_requeue_thread #3 kthread #4 ret_from_fork youngest=22s(pid=6510), oldest=22s(pid=6510) ........................ ll_cfg_requeue 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 ping_evictor_main #3 kthread #4 ret_from_fork youngest=1s(pid=6509), oldest=1s(pid=6509) ........................ ll_evictor 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 expired_lock_main #3 kthread #4 ret_from_fork youngest=9065s(pid=6503), oldest=9065s(pid=6503) ........................ ldlm_elt 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 __cv_timedwait_common #4 __cv_timedwait_idle #5 l2arc_feed_thread #6 thread_generic_wrapper #7 kthread #8 ret_from_fork youngest=0s(pid=4346), oldest=0s(pid=4346) ........................ l2arc_feed 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 cv_timedwait_hires_common #5 cv_timedwait_idle_hires #6 dbuf_evict_thread #7 thread_generic_wrapper #8 kthread #9 ret_from_fork youngest=0s(pid=4343), oldest=0s(pid=4343) ........................ dbuf_evict 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 lnet_peer_discovery #4 kthread #5 ret_from_fork youngest=0s(pid=3652), oldest=0s(pid=3652) ........................ lnet_discovery 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 wait_for_completion_interruptible_timeout #4 lnet_monitor_thread #5 kthread #6 ret_from_fork youngest=0s(pid=3651), oldest=0s(pid=3651) ........................ monitor_thread 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 lnet_acceptor #3 kthread #4 ret_from_fork youngest=8983s(pid=3650), oldest=8983s(pid=3650) ........................ acceptor_001 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 ksocknal_reaper #4 kthread #5 ret_from_fork youngest=0s(pid=3646), oldest=0s(pid=3646) ........................ socknal_reaper 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 poll_schedule_timeout.constprop.11 #5 do_sys_poll #6 __x64_sys_ppoll #7 do_syscall_64 #8 entry_SYSCALL_64_after_hwframe youngest=0s(pid=1118), oldest=0s(pid=1118) ........................ in:imjournal 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 poll_schedule_timeout.constprop.11 #5 do_select #6 core_sys_select #7 __x64_sys_pselect6 #8 do_syscall_64 #9 entry_SYSCALL_64_after_hwframe youngest=58s(pid=1084), oldest=58s(pid=1084) ........................ rsyslogd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 do_nanosleep #3 hrtimer_nanosleep #4 __x64_sys_nanosleep #5 do_syscall_64 #6 entry_SYSCALL_64_after_hwframe youngest=56s(pid=1060), oldest=56s(pid=1060) ........................ crond 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 nfs41_callback_svc #3 kthread #4 ret_from_fork youngest=9208s(pid=980), oldest=9208s(pid=980) ........................ NFSv4 callback 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 ep_poll #5 call_rcu #6 __fput #7 do_epoll_wait #8 __x64_sys_epoll_wait #9 do_syscall_64 #10 entry_SYSCALL_64_after_hwframe youngest=23s(pid=823), oldest=23s(pid=823) ........................ systemd-udevd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 wait_woken #4 sk_wait_data #5 tcp_recvmsg #6 inet_recvmsg #7 sock_recvmsg #8 sock_xmit #9 nbd_read_stat #10 recv_work #11 process_one_work #12 worker_thread #13 kthread #14 ret_from_fork youngest=3167s(pid=654), oldest=3167s(pid=654) ........................ kworker/u9:0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kswapd #3 kthread #4 ret_from_fork youngest=9231s(pid=71), oldest=9231s(pid=71) ........................ kswapd0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kthread_worker_fn #3 kthread #4 ret_from_fork youngest=9233s(pid=58), oldest=9233s(pid=58) ........................ watchdogd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 khugepaged #4 kthread #5 ret_from_fork youngest=0s(pid=48), oldest=0s(pid=48) ........................ khugepaged 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 ksm_scan_thread #3 kthread #4 ret_from_fork youngest=9233s(pid=47), oldest=9233s(pid=47) ........................ ksmd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kcompactd #3 kthread #4 ret_from_fork youngest=9233s(pid=46), oldest=9233s(pid=46) ........................ kcompactd0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 oom_reaper #3 kthread #4 ret_from_fork youngest=9233s(pid=44), oldest=9233s(pid=44) ........................ oom_reaper 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 schedule_timeout_interruptible #4 watchdog #5 kthread #6 ret_from_fork youngest=16s(pid=43), oldest=16s(pid=43) ........................ khungtaskd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 devtmpfsd #3 kthread #4 ret_from_fork youngest=9002s(pid=39), oldest=9002s(pid=39) ........................ kdevtmpfs 1 times ------- 1 stacks like that: ---------- #-1 __raw_callee_save___pv_queued_spin_unlock #0 do_raw_spin_unlock #1 _raw_spin_unlock_irqrestore #2 __try_to_del_timer_sync #3 __timer_delete_sync #4 schedule_timeout #5 rcu_gp_kthread #6 kthread #7 ret_from_fork youngest=0s(pid=13), oldest=0s(pid=13) ........................ rcu_sched 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kthreadd #3 ret_from_fork youngest=1s(pid=2), oldest=1s(pid=2) ........................ kthreadd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule_idle #2 do_idle #3 cpu_startup_entry #4 rest_init #5 start_kernel #6 x86_64_start_reservations #7 x86_64_start_kernel #8 secondary_startup_64_no_verify youngest=9233s(pid=0), oldest=9233s(pid=0) ........................ swapper/0 1 times ** Execution took 1.76s (real) 0.44s (CPU), Child processes: 1.31s