***************** crashinfo --stacksummary ***************** /exports/testreports/64536/testresults/racer-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg349-client-timeout-core (4.18.0rh8.10-debug) ------- 27 stacks like that: ---------- #0 __schedule #1 schedule #2 rescuer_thread #3 kthread #4 ret_from_fork youngest=3073s(pid=676), oldest=3099s(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 knbd0-recv 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 ------- 22 stacks like that: ---------- #0 __schedule #1 schedule #2 worker_thread #3 kthread #4 ret_from_fork youngest=0s(pid=44290), oldest=3075s(pid=663) ........................ 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/1:1 1 times kworker/1:1H 1 times kworker/1:2 1 times kworker/1:2H 1 times kworker/2:0 1 times kworker/2:1 1 times kworker/2:1H 1 times kworker/2:2 1 times kworker/2:2H 1 times kworker/3:0 1 times kworker/3:0H 1 times kworker/3:2 1 times kworker/3:2H 1 times kworker/u8:0 1 times kworker/u8:1 1 times kworker/u8:2 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=32), oldest=3046s(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 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=44206), oldest=3030s(pid=1023) ........................ NetworkManager 1 times gdbus 2 times gmain 3 times irqbalance 1 times pdsh 1 times polkitd 2 times rngd 1 times rpcbind 1 times sshd 1 times tuned 2 times ------- 14 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 do_last #6 path_openat #7 do_filp_open #8 do_sys_openat2 #9 do_sys_open #10 __x64_sys_openat #11 do_syscall_64 #12 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38153), oldest=2462s(pid=36911) ........................ fallocate 2 times ls 12 times ------- 12 stacks like that: ---------- #0 __schedule #1 schedule #2 ptlrpc_wait_event #3 ptlrpc_main #4 kthread #5 ret_from_fork youngest=2414s(pid=5579), oldest=2822s(pid=5583) ........................ ldlm_cb00_000 1 times ldlm_cb00_001 1 times ldlm_cb00_002 1 times ldlm_cb01_000 1 times ldlm_cb01_001 1 times ldlm_cb01_002 1 times ldlm_cn00_000 1 times ldlm_cn00_001 1 times ldlm_cn00_002 1 times ldlm_cn01_000 1 times ldlm_cn01_001 1 times ldlm_cn01_002 1 times ------- 11 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=143s(pid=44202), oldest=3028s(pid=1051) ........................ JS Helper 4 times gssproxy 5 times pdsh 1 times rs:main Q:Reg 1 times ------- 9 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=1045), oldest=3022s(pid=1059) ........................ agetty 3 times dhclient 1 times ssh 1 times sshd 2 times tuned 2 times ------- 7 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=24s(pid=1024), oldest=3027s(pid=1044) ........................ dbus-daemon 1 times gssproxy 1 times systemd 2 times systemd-journal 1 times systemd-logind 1 times systemd-udevd 1 times ------- 6 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 vfs_statx #11 __do_sys_newstat #12 __x64_sys_newstat #13 do_syscall_64 #14 entry_SYSCALL_64_after_hwframe youngest=2460s(pid=38238), oldest=2462s(pid=38121) ........................ chmod 2 times cp 3 times ln 1 times ------- 6 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 down_write #5 do_last #6 path_openat #7 do_filp_open #8 do_sys_openat2 #9 do_sys_open #10 __x64_sys_openat #11 do_syscall_64 #12 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=37900), oldest=2463s(pid=37963) ........................ fallocate 1 times file_concat.sh 3 times lfs 2 times ------- 5 stacks like that: ---------- #0 __schedule #1 schedule #2 ldlm_bl_thread_main #3 kthread #4 ret_from_fork youngest=1s(pid=12407), oldest=5s(pid=10973) ........................ 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=4s(pid=2379), oldest=2415s(pid=2375) ........................ ptlrpcd_00_00 1 times ptlrpcd_00_01 1 times ptlrpcd_01_00 1 times ptlrpcd_01_01 1 times ptlrpcd_rcv 1 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 vfs_statx #11 __do_sys_newlstat #12 __x64_sys_newlstat #13 do_syscall_64 #14 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=37977), oldest=2462s(pid=37949) ........................ chmod 1 times getfattr 1 times ln 2 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 do_wait #3 kernel_wait4 #4 __do_sys_wait4 #5 switch_fpu_return #6 do_syscall_64 #7 entry_SYSCALL_64_after_hwframe youngest=4s(pid=44198), oldest=2099s(pid=10005) ........................ bash 2 times lss_destroy.sh 2 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 ksocknal_scheduler #3 kthread #4 ret_from_fork youngest=4s(pid=2369), oldest=2945s(pid=2370) ........................ socknal_sd00_00 1 times socknal_sd00_01 1 times socknal_sd01_00 1 times socknal_sd01_01 1 times ------- 4 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 ksocknal_connd #4 kthread #5 ret_from_fork youngest=2822s(pid=2363), oldest=2945s(pid=2364) ........................ 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_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 path_removexattr #11 __x64_sys_removexattr #12 do_syscall_64 #13 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38147), oldest=2461s(pid=38135) ........................ setfattr 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 do_sys_truncate #11 __x64_sys_truncate #12 do_syscall_64 #13 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38152), oldest=2461s(pid=38133) ........................ truncate 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 path_setxattr #11 __x64_sys_setxattr #12 do_syscall_64 #13 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38134), oldest=2462s(pid=38124) ........................ setfattr 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 __might_sleep #5 down_write #6 filename_create #7 do_mknodat #8 __x64_sys_mknod #9 do_syscall_64 #10 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38159), oldest=2462s(pid=38087) ........................ mcreate 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 __might_sleep #5 down_write #6 filename_create #7 do_mkdirat #8 __x64_sys_mkdir #9 do_syscall_64 #10 entry_SYSCALL_64_after_hwframe youngest=2462s(pid=38065), oldest=2462s(pid=38051) ........................ mkdir 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 __might_sleep #5 down_write #6 filename_create #7 do_symlinkat #8 __x64_sys_symlinkat #9 do_syscall_64 #10 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38030), oldest=2463s(pid=37893) ........................ ln 3 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 pipe_wait #3 pipe_read #4 new_sync_read #5 __vfs_read #6 vfs_read #7 ksys_read #8 __x64_sys_read #9 do_syscall_64 #10 entry_SYSCALL_64_after_hwframe youngest=74s(pid=12081), oldest=2099s(pid=10014) ........................ lss_destroy.sh 1 times sed 1 times tee 1 times ------- 3 stacks like that: ---------- #0 __schedule #1 schedule #2 do_wait #3 kernel_wait4 #4 __do_sys_wait4 #5 __x64_sys_wait4 #6 do_syscall_64 #7 entry_SYSCALL_64_after_hwframe youngest=17s(pid=12080), oldest=2786s(pid=1555) ........................ auster 1 times bash 1 times lss_create.sh 1 times ------- 3 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=1s(pid=44204), oldest=33s(pid=1058) ........................ crond 1 times pdsh 1 times sleep 1 times ------- 3 stacks like that: ---------- #-1 native_safe_halt #0 default_idle #1 arch_cpu_idle #2 default_idle_call #3 do_idle #4 cpu_startup_entry #5 start_secondary #6 secondary_startup_64_no_verify youngest=3099s(pid=0), oldest=3099s(pid=0) ........................ swapper/1 1 times swapper/2 1 times swapper/3 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 down_write #5 lock_rename #6 do_renameat2 #7 __x64_sys_rename #8 do_syscall_64 #9 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38182), oldest=2462s(pid=38084) ........................ mrename 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 vfs_statx #11 __do_sys_newfstatat #12 __x64_sys_newfstatat #13 do_syscall_64 #14 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38142), oldest=2461s(pid=37995) ........................ chown 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 __might_sleep #5 down_write #6 do_rmdir #7 __x64_sys_unlinkat #8 do_syscall_64 #9 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=37912), oldest=2462s(pid=37728) ........................ rm 2 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 ptlrpc_hr_main #3 kthread #4 ret_from_fork youngest=2945s(pid=2362), oldest=2945s(pid=2361) ........................ ptlrpc_hr00_000 1 times ptlrpc_hr01_000 1 times ------- 2 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=143s(pid=44205), oldest=3018s(pid=1369) ........................ (sd-pam) 1 times pdsh 1 times ------- 2 stacks like that: ---------- #0 __schedule #1 schedule #2 scsi_error_handler #3 kthread #4 ret_from_fork youngest=3087s(pid=478), oldest=3087s(pid=482) ........................ 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=3099s(pid=11), oldest=3099s(pid=10) ........................ rcu_tasks_rude_ 1 times rcu_tasks_trace 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 sigsuspend #3 __x64_sys_rt_sigsuspend #4 do_syscall_64 #5 entry_SYSCALL_64_after_hwframe youngest=393s(pid=43989), oldest=393s(pid=43989) ........................ anacron 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 down_write #5 vfs_rename #6 do_renameat2 #7 __x64_sys_rename #8 do_syscall_64 #9 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=38102), oldest=2461s(pid=38102) ........................ mrename 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_write_slowpath #4 down_write #5 do_unlinkat #6 __x64_sys_unlinkat #7 do_syscall_64 #8 entry_SYSCALL_64_after_hwframe youngest=2462s(pid=38003), oldest=2462s(pid=38003) ........................ rm 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 path_listxattr #11 __x64_sys_listxattr #12 do_syscall_64 #13 entry_SYSCALL_64_after_hwframe youngest=2462s(pid=38002), oldest=2462s(pid=38002) ........................ getfattr 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 do_fchownat #11 __x64_sys_fchownat #12 do_syscall_64 #13 entry_SYSCALL_64_after_hwframe youngest=2462s(pid=37956), oldest=2462s(pid=37956) ........................ chown 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 vfs_statx #11 __do_sys_statx #12 __x64_sys_statx #13 do_syscall_64 #14 entry_SYSCALL_64_after_hwframe youngest=2461s(pid=37676), oldest=2461s(pid=37676) ........................ lfs 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_preempt_disabled #3 rwsem_down_read_slowpath #4 down_read #5 lookup_slow #6 walk_component #7 path_lookupat #8 filename_lookup #9 user_path_at_empty #10 path_getxattr #11 __x64_sys_getxattr #12 do_syscall_64 #13 entry_SYSCALL_64_after_hwframe youngest=2462s(pid=37257), oldest=2462s(pid=37257) ........................ getfattr 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 mgc_requeue_thread #3 kthread #4 ret_from_fork youngest=2734s(pid=5592), oldest=2734s(pid=5592) ........................ ll_cfg_requeue 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 expired_lock_main #3 kthread #4 ret_from_fork youngest=2822s(pid=5591), oldest=2822s(pid=5591) ........................ 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=2374), oldest=0s(pid=2374) ........................ 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=2373), oldest=0s(pid=2373) ........................ monitor_thread 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 lnet_acceptor #3 kthread #4 ret_from_fork youngest=2945s(pid=2372), oldest=2945s(pid=2372) ........................ 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=2367), oldest=0s(pid=2367) ........................ 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=280s(pid=1083), oldest=280s(pid=1083) ........................ rsyslogd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 nfs41_callback_svc #3 kthread #4 ret_from_fork youngest=3036s(pid=979), oldest=3036s(pid=979) ........................ NFSv4 callback 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kjournald2 #3 kthread #4 ret_from_fork youngest=3073s(pid=675), oldest=3073s(pid=675) ........................ 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 worker_thread #13 kthread #14 ret_from_fork youngest=393s(pid=659), oldest=393s(pid=659) ........................ kworker/u9:0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kswapd #3 kthread #4 ret_from_fork youngest=3095s(pid=71), oldest=3095s(pid=71) ........................ kswapd0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kthread_worker_fn #3 kthread #4 ret_from_fork youngest=3098s(pid=59), oldest=3098s(pid=59) ........................ watchdogd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 schedule_timeout #3 khugepaged #4 kthread #5 ret_from_fork youngest=7s(pid=48), oldest=7s(pid=48) ........................ khugepaged 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 ksm_scan_thread #3 kthread #4 ret_from_fork youngest=3099s(pid=47), oldest=3099s(pid=47) ........................ ksmd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 kcompactd #3 kthread #4 ret_from_fork youngest=3099s(pid=46), oldest=3099s(pid=46) ........................ kcompactd0 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 oom_reaper #3 kthread #4 ret_from_fork youngest=3099s(pid=44), oldest=3099s(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=26s(pid=43), oldest=26s(pid=43) ........................ khungtaskd 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 devtmpfsd #3 kthread #4 ret_from_fork youngest=2821s(pid=39), oldest=2821s(pid=39) ........................ kdevtmpfs 1 times ------- 1 stacks like that: ---------- #0 __schedule #1 schedule #2 rcu_gp_kthread #3 kthread #4 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=5s(pid=2), oldest=5s(pid=2) ........................ kthreadd 1 times ------- 1 stacks like that: ---------- #-1 native_safe_halt #0 default_idle #1 arch_cpu_idle #2 default_idle_call #3 do_idle #4 cpu_startup_entry #5 rest_init #6 start_kernel #7 x86_64_start_reservations #8 x86_64_start_kernel #9 secondary_startup_64_no_verify youngest=3099s(pid=0), oldest=3099s(pid=0) ........................ swapper/0 1 times ** Execution took 0.59s (real) 0.18s (CPU), Child processes: 0.44s