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[ 990.056313][ T23] Not tainted 6.12.0-rc2-00003-g49e4154f4b16 #1 [ 990.118200][ T23] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 990.195719][ T23] task:swapper state:D stack:4480 pid:1 tgid:1 ppid:0 flags:0x00004000 [ 990.272724][ T23] Call Trace: [ 990.330321][ T23] __schedule (kernel/sched/core.c:5318 kernel/sched/core.c:6675) [ 990.447142][ T23] schedule (kernel/sched/core.c:6753 kernel/sched/core.c:6767) [ 990.491979][ T23] async_synchronize_cookie_domain (kernel/async.c:?) [ 990.594686][ T23] ? wake_bit_function (kernel/sched/wait.c:383) [ 990.683319][ T23] ? reserve_initrd_mem (init/initramfs.c:756) [ 990.747936][ T23] wait_for_initramfs (init/initramfs.c:752) [ 990.820345][ T23] populate_rootfs (init/initramfs.c:762) [ 990.882071][ T23] do_one_initcall (init/main.c:?) [ 990.944599][ T23] ? reserve_initrd_mem (init/initramfs.c:756) [ 991.001047][ T23] ? local_clock_noinstr (arch/x86/include/asm/cmpxchg_32.h:139 kernel/sched/clock.c:290 kernel/sched/clock.c:306) [ 991.124344][ T23] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:37 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 991.209051][ T23] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:37 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 991.292799][ T23] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:37 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 991.378336][ T23] ? local_clock_noinstr (arch/x86/include/asm/cmpxchg_32.h:139 kernel/sched/clock.c:290 kernel/sched/clock.c:306) [ 991.476997][ T23] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:37 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 991.527408][ T23] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:37 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 991.625576][ T23] ? local_clock_noinstr (arch/x86/include/asm/cmpxchg_32.h:139 kernel/sched/clock.c:290 kernel/sched/clock.c:306) [ 991.925186][ T23] ? local_clock_noinstr (arch/x86/include/asm/cmpxchg_32.h:139 kernel/sched/clock.c:290 kernel/sched/clock.c:306) [ 992.217536][ T23] ? irqentry_exit (kernel/entry/common.c:365) [ 992.316602][ T23] ? check_preemption_disabled (lib/smp_processor_id.c:16) [ 992.451338][ T23] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67) [ 992.545143][ T23] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4468) [ 992.694021][ T23] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:63) [ 992.817354][ T23] ? irqentry_exit (kernel/entry/common.c:365) [ 992.956858][ T23] ? common_interrupt (arch/x86/kernel/irq.c:278) [ 993.087472][ T23] ? asm_common_interrupt (init_task.c:?) [ 993.298189][ T23] ? next_arg (lib/cmdline.c:273) [ 993.545274][ T23] ? parse_args (kernel/params.c:153 kernel/params.c:186) [ 993.665571][ T23] ? trace_initcall_level (include/trace/events/initcall.h:10) [ 993.755608][ T23] do_initcall_level (init/main.c:1330) [ 993.843152][ T23] do_initcalls (init/main.c:1344) [ 993.895473][ T23] do_basic_setup (init/main.c:1367) [ 993.952283][ T23] kernel_init_freeable (init/main.c:1582) [ 994.016012][ T23] ? rest_init (init/main.c:1461) [ 994.067853][ T23] ? rest_init (init/main.c:1461) [ 994.152226][ T23] kernel_init (init/main.c:1471) [ 994.250558][ T23] ret_from_fork (arch/x86/kernel/process.c:153) [ 994.358571][ T23] ret_from_fork_asm (??:?) [ 994.464814][ T23] entry_INT80_32 (init_task.c:?) [ 1024.177579][ T23] [ 1024.177579][ T23] Showing all locks held in the system: [ 1024.234410][ T23] 1 lock held by khungtaskd/23: [ 1024.289399][ T23] #0: c3cd44a4 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire (include/linux/rcupdate.h:336) [ 1024.427079][ T23] 2 locks held by kworker/u4:2/25: [ 1024.482763][ T23] [ 1024.555465][ T23] ============================================= [ 1024.555465][ T23] [ 1117.679859][ C0] workqueue: do_cache_clean hogged CPU for >10000us 19 times, consider switching to WQ_UNBOUND [ 1149.530928][ C0] workqueue: neigh_managed_work hogged CPU for >10000us 67 times, consider switching to WQ_UNBOUND [ 1155.426086][ C0] workqueue: stop_one_cpu_nowait_workfn hogged CPU for >10000us 4 times, consider switching to WQ_UNBOUND BUG: kernel hang in boot stage The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241107/202411072207.b2321310-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki