***************** crashinfo --stacksummary ***************** /exports/testreports/67486/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg202-server-timeout-core (4.18.0rh8.10-debug) ------- 101 stacks like that: ---------- #0 __schedule #1 schedule #2 taskq_thread #3 kthread #4 ret_from_fork youngest=0s(pid=115814), oldest=8430s(pid=2378) ........................ arc_prune 1 times dbu_evict 1 times dp_sync_taskq 1 times dp_zil_clean_ta 12 times spl_delay_taskq 1 times spl_dynamic_tas 1 times spl_kmem_cache 1 times spl_system_task 1 times tx_commit_cb 3 times z_cl_int 3 times z_cl_iss 3 times z_flush_int 3 times z_flush_iss 3 times z_fr_int 3 times z_fr_iss 3 times z_metaslab 5 times z_null_int 3 times z_null_iss 3 times z_prefetch 3 times z_rd_int 3 times z_rd_iss 3 times z_trim_int 3 times z_trim_iss 9 times z_unlinked_drai 3 times z_upgrade 3 times z_vdev_file 1 times z_wr_int 9 times z_wr_iss 6 times z_zrele 3 times z_zvol 3 times zvol_tq-0 1 times ------- 85 stacks like that: ---------- #0 __schedule #1 schedule #2 ptlrpc_wait_event #3 ptlrpc_main #4 kthread #5 ret_from_fork youngest=0s(pid=86485), oldest=8266s(pid=6721) ........................ 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 ldlm_cn00_006 1 times ldlm_cn00_007 1 times ll_mgs_0000 1 times ll_mgs_0001 1 times ll_mgs_0002 1 times ll_mgs_0003 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_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_io00_017 1 times ll_ost_io00_018 1 times ll_ost_io00_019 1 times ll_ost_out00_00 3 times ll_ost_seq00_00 2 times mdt00_000 1 times mdt00_001 1 times mdt00_002 1 times mdt00_003 1 times mdt00_004 1 times mdt00_005 1 times mdt00_006 1 times mdt00_007 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_io00_003 1 times mdt_out00_000 1 times mdt_out00_001 1 times mdt_rdpg00_000 1 times mdt_rdpg00_001 1 times mdt_rdpg00_002 1 times mdt_seqm_0000 1 times mdt_seqm_0001 1 times mdt_seqs_0000 1 times mdt_seqs_0001 1 times ------- 30 stacks like that: ---------- #0 __schedule #1 schedule #2 worker_thread #3 kthread #4 ret_from_fork youngest=0s(pid=67776), oldest=8496s(pid=682) ........................ 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/1:0 1 times kworker/1:0H 1 times kworker/1:1 1 times kworker/1:1H 1 times kworker/1:2 1 times kworker/1:3 1 times kworker/2:0 1 times kworker/2:0H 1 times kworker/2:1 1 times kworker/2:2 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/3:1H 1 times kworker/3:2 1 times kworker/3:3 1 times kworker/u8:0 1 times kworker/u8:1 1 times kworker/u8:3 1 times kworker/u9:0 1 times kworker/u9:1 1 times ------- 26 stacks like that: ---------- #0 __schedule #1 schedule #2 rescuer_thread #3 kthread #4 ret_from_fork youngest=6340s(pid=62), oldest=8514s(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 kintegrityd 1 times kstrp 1 times kthrotld 1 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 ------- 16 stacks like that: ---------- #0 __schedule #1 schedule #2 smpboot_thread_fn #3 kthread #4 ret_from_fork youngest=0s(pid=20), oldest=8486s(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 ------- 15 stacks like that: ---------- #0 __schedule #1 schedule #2 cv_wait_common #3 __cv_wait_idle #4 zthr_procedure #5 thread_generic_wrapper #6 kthread #7 ret_from_fork youngest=4387s(pid=86318), oldest=8277s(pid=7488) ........................ raidz_expand 3 times z_checkpoint_di 3 times z_indirect_cond 3 times z_livelist_cond 3 times z_livelist_dest 3 times ------- 13 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=1049), oldest=8473s(pid=1052) ........................ NetworkManager 1 times gdbus 2 times gmain 3 times irqbalance 1 times polkitd 2 times rngd 1 times rpcbind 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=16s(pid=1171), oldest=8472s(pid=1081) ........................ JS Helper 4 times gssproxy 5 times rs:main Q:Reg 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=1066), oldest=8467s(pid=1095) ........................ agetty 3 times dhclient 1 times sshd 1 times tuned 2 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=16s(pid=813), oldest=8472s(pid=1076) ........................ dbus-daemon 1 times gssproxy 1 times systemd 1 times systemd-journal 1 times systemd-logind 1 times systemd-udevd 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=0s(pid=3336), oldest=1036s(pid=3333) ........................ 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 schedule_timeout #3 qsd_upd_thread #4 kthread #5 ret_from_fork youngest=10s(pid=84119), oldest=38s(pid=7669) ........................ lquota_wb_lustr 4 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 ldlm_bl_thread_main #3 kthread #4 ret_from_fork youngest=0s(pid=34293), oldest=0s(pid=52096) ........................ ldlm_bl_01 1 times ldlm_bl_02 1 times ldlm_bl_03 1 times ldlm_bl_04 1 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 ksocknal_connd #4 kthread #5 ret_from_fork youngest=8259s(pid=3324), oldest=8311s(pid=3322) ........................ 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 schedule_hrtimeout_range_clock #3 schedule_hrtimeout_range #4 cv_timedwait_hires_common #5 cv_timedwait_idle_hires #6 mmp_thread #7 thread_generic_wrapper #8 kthread #9 ret_from_fork youngest=0s(pid=86313), oldest=0s(pid=83644) ........................ mmp 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 cv_wait_common #3 __cv_wait_idle #4 txg_quiesce_thread #5 thread_generic_wrapper #6 kthread #7 ret_from_fork youngest=0s(pid=83642), oldest=1s(pid=7485) ........................ txg_quiesce 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 ksocknal_scheduler #3 kthread #4 ret_from_fork youngest=0s(pid=3327), oldest=0s(pid=3328) ........................ socknal_sd00_00 1 times socknal_sd00_01 1 times socknal_sd00_02 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=8514s(pid=0), oldest=8514s(pid=0) ........................ swapper/1 1 times swapper/2 1 times swapper/3 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 osp_precreate_thread #3 kthread #4 ret_from_fork youngest=1s(pid=86511), oldest=2s(pid=86513) ........................ osp-pre-0-0 1 times osp-pre-1-0 1 times ------- 2 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=0s(pid=86512), oldest=4s(pid=86510) ........................ osp-syn-0-0 1 times osp-syn-1-0 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 mgs_ir_notify #3 kthread #4 ret_from_fork youngest=4375s(pid=86483), oldest=4384s(pid=86478) ........................ mgs_lustre_noti 1 times mgs_params_noti 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 io_schedule_timeout #4 __cv_timedwait_common #5 __cv_timedwait_io #6 zio_wait #7 dsl_pool_sync #8 spa_sync_iterate_to_convergence #9 spa_sync #10 txg_sync_thread #11 thread_generic_wrapper #12 kthread #13 ret_from_fork youngest=0s(pid=86312), oldest=0s(pid=83643) ........................ txg_sync 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 ofd_id_repair_thread_main #3 kthread #4 ret_from_fork youngest=4434s(pid=84091), oldest=8273s(pid=7663) ........................ 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=4434s(pid=84090), oldest=8273s(pid=7662) ........................ inconsistency_v 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 ptlrpc_hr_main #3 kthread #4 ret_from_fork youngest=0s(pid=3321), oldest=0s(pid=3320) ........................ ptlrpc_hr00_000 1 times ptlrpc_hr00_001 1 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=2384), oldest=0s(pid=2385) ........................ arc_evict 1 times arc_reap 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 scsi_error_handler #3 kthread #4 ret_from_fork youngest=8505s(pid=491), oldest=8505s(pid=486) ........................ 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=8514s(pid=11), oldest=8514s(pid=10) ........................ rcu_tasks_rude_ 1 times rcu_tasks_trace 1 times ------- 1 stacks like that: ---------- #-1 do_raw_spin_lock #0 _raw_spin_lock_irqsave #1 debug_check_no_obj_freed #2 slab_free_freelist_hook #3 kfree #4 spl_kmem_free #5 metaslab_group_alloc_normal #6 metaslab_alloc_dva #7 metaslab_alloc #8 zio_dva_allocate #9 zio_execute #10 taskq_thread #11 kthread #12 ret_from_fork youngest=0s(pid=115667), oldest=0s(pid=115667) ........................ z_wr_iss 1 times ------- 1 stacks like that: ---------- #-1 kvm_clock_get_cycles #0 ktime_get_raw_ts64 #1 metaslab_set_selected_txg #2 metaslab_group_alloc_normal #3 metaslab_alloc_dva #4 metaslab_alloc #5 zio_dva_allocate #6 zio_execute #7 taskq_thread #8 kthread #9 ret_from_fork youngest=0s(pid=112226), oldest=0s(pid=112226) ........................ z_wr_iss 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 distribute_txn_commit_thread #3 kthread #4 ret_from_fork youngest=4375s(pid=86530), oldest=4375s(pid=86530) ........................ dist_txn-0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 mdt_restriper_main #3 kthread #4 ret_from_fork youngest=4383s(pid=86508), oldest=4383s(pid=86508) ........................ mdt_restriper_0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 qmt_reba_thread #3 kthread #4 ret_from_fork youngest=4383s(pid=86507), oldest=4383s(pid=86507) ........................ qmt_reba_lustre 1 times ------- 1 stacks like that: ---------- #-1 __schedule #0 __schedule #1 preempt_schedule_common #2 _cond_resched #3 mutex_lock #4 dbuf_sync_leaf #5 dbuf_sync_list #6 dbuf_sync_indirect #7 dbuf_sync_list #8 dnode_sync #9 sync_dnodes_task #10 taskq_thread #11 kthread #12 ret_from_fork youngest=0s(pid=86289), oldest=0s(pid=86289) ........................ dp_sync_taskq 1 times ------- 1 stacks like that: ---------- #-1 mutex_spin_on_owner #0 __mutex_lock #1 __mutex_lock_slowpath #2 mutex_lock #3 metaslab_group_alloc_normal #4 metaslab_alloc_dva #5 metaslab_alloc #6 zio_dva_allocate #7 zio_execute #8 taskq_thread #9 kthread #10 ret_from_fork youngest=0s(pid=86271), oldest=0s(pid=86271) ........................ z_wr_iss 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 preempt_schedule_common #2 _cond_resched #3 mutex_lock #4 dnode_rele #5 dnode_sync #6 sync_dnodes_task #7 taskq_thread #8 kthread #9 ret_from_fork youngest=0s(pid=83606), oldest=0s(pid=83606) ........................ dp_sync_taskq 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 __cv_timedwait_common #4 __cv_timedwait_idle #5 txg_sync_thread #6 thread_generic_wrapper #7 kthread #8 ret_from_fork youngest=1s(pid=7486), oldest=1s(pid=7486) ........................ txg_sync 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 mgc_requeue_thread #3 kthread #4 ret_from_fork youngest=1147s(pid=5862), oldest=1147s(pid=5862) ........................ ll_cfg_requeue 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 ping_evictor_main #3 kthread #4 ret_from_fork youngest=0s(pid=5861), oldest=0s(pid=5861) ........................ ll_evictor 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 expired_lock_main #3 kthread #4 ret_from_fork youngest=8312s(pid=5855), oldest=8312s(pid=5855) ........................ ldlm_elt 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=3332), oldest=0s(pid=3332) ........................ 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=3331), oldest=0s(pid=3331) ........................ monitor_thread 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 lnet_acceptor #3 kthread #4 ret_from_fork youngest=8259s(pid=3330), oldest=8259s(pid=3330) ........................ 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=3326), oldest=0s(pid=3326) ........................ socknal_reaper 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=2390), oldest=0s(pid=2390) ........................ 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=2387), oldest=0s(pid=2387) ........................ dbuf_evict 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=1170), oldest=0s(pid=1170) ........................ 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=94s(pid=1110), oldest=94s(pid=1110) ........................ 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=19s(pid=1087), oldest=19s(pid=1087) ........................ crond 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 nfs41_callback_svc #3 kthread #4 ret_from_fork youngest=8461s(pid=1011), oldest=8461s(pid=1011) ........................ NFSv4 callback 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kjournald2 #3 kthread #4 ret_from_fork youngest=8496s(pid=694), oldest=8496s(pid=694) ........................ jbd2/nbd0-8 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 rescuer_thread #13 kthread #14 ret_from_fork youngest=80s(pid=683), oldest=80s(pid=683) ........................ knbd0-recv 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kswapd #3 kthread #4 ret_from_fork youngest=310s(pid=71), oldest=310s(pid=71) ........................ kswapd0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kthread_worker_fn #3 kthread #4 ret_from_fork youngest=8513s(pid=57), oldest=8513s(pid=57) ........................ watchdogd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 khugepaged #4 kthread #5 ret_from_fork youngest=4s(pid=48), oldest=4s(pid=48) ........................ khugepaged 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 ksm_scan_thread #3 kthread #4 ret_from_fork youngest=8514s(pid=47), oldest=8514s(pid=47) ........................ ksmd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kcompactd #3 kthread #4 ret_from_fork youngest=367s(pid=46), oldest=367s(pid=46) ........................ kcompactd0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 oom_reaper #3 kthread #4 ret_from_fork youngest=8514s(pid=44), oldest=8514s(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=34s(pid=43), oldest=34s(pid=43) ........................ khungtaskd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 devtmpfsd #3 kthread #4 ret_from_fork youngest=8341s(pid=39), oldest=8341s(pid=39) ........................ kdevtmpfs 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 rcu_gp_kthread #4 kthread #5 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=0s(pid=2), oldest=0s(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=8514s(pid=0), oldest=8514s(pid=0) ........................ swapper/0 1 times ** Execution took 2.63s (real) 0.75s (CPU), Child processes: 1.89s