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[ 994.947414][ T26] Not tainted 6.16.0-rc6-00086-g8671bad873eb #1 [ 994.951523][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 994.960576][ T26] task:swapper/0 state:D stack:5016 pid:1 tgid:1 ppid:0 task_flags:0x0140 flags:0x00004000 [ 994.972581][ T26] Call Trace: [ 994.998429][ T26] __schedule (kernel/sched/core.c:5354 kernel/sched/core.c:6954) [ 995.035758][ T26] schedule (kernel/sched/core.c:7037 kernel/sched/core.c:7051) [ 995.044863][ T26] async_synchronize_cookie_domain (kernel/async.c:317 kernel/async.c:310) [ 995.050698][ T26] ? do_wait_intr (kernel/sched/wait.c:384) [ 995.059798][ T26] wait_for_initramfs (init/initramfs.c:778) [ 995.067798][ T26] populate_rootfs (init/initramfs.c:789) [ 995.070767][ T26] do_one_initcall (init/main.c:1274) [ 995.074441][ T26] ? initramfs_async_setup (init/initramfs.c:782) [ 995.098384][ T26] do_initcalls (init/main.c:1335 init/main.c:1352) [ 995.136744][ T26] kernel_init_freeable (init/main.c:1588) [ 995.136744][ T26] ? rest_init (init/main.c:1466) [ 995.158663][ T26] kernel_init (init/main.c:1476) [ 995.177750][ T26] ret_from_fork (arch/x86/kernel/process.c:154) [ 995.178146][ T26] ? rest_init (init/main.c:1466) [ 995.230129][ T26] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 995.230129][ T26] entry_INT80_32 (arch/x86/entry/entry_32.S:945) [ 995.268743][ T26] [ 995.268743][ T26] Showing all locks held in the system: [ 995.336987][ T26] 1 lock held by khungtaskd/26: [ 995.446697][ T26] #0: 830cce10 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks (kernel/locking/lockdep.c:6768 (discriminator 1)) [ 995.464546][ T26] 4 locks held by kworker/u4:2/29: [ 995.470758][ T26] 2 locks held by kworker/0:3/38: [ 995.498593][ T26] [ 995.599251][ T26] ============================================= [ 995.599251][ T26] [ 995.729940][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 995.729940][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.16.0-rc6-00086-g8671bad873eb #1 PREEMPT(full) [ 995.729940][ T26] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 995.729940][ T26] Call Trace: [ 995.729940][ T26] dump_stack_lvl (lib/dump_stack.c:124) [ 995.729940][ T26] dump_stack (lib/dump_stack.c:130) [ 995.729940][ T26] panic (kernel/panic.c:382) [ 995.729940][ T26] check_hung_uninterruptible_tasks (kernel/hung_task.c:311) [ 995.729940][ T26] watchdog (kernel/hung_task.c:470) [ 995.729940][ T26] kthread (kernel/kthread.c:464) [ 995.729940][ T26] ? check_hung_uninterruptible_tasks (kernel/hung_task.c:453) [ 995.729940][ T26] ? kthread_complete_and_exit (kernel/kthread.c:413) [ 995.729940][ T26] ret_from_fork (arch/x86/kernel/process.c:154) [ 995.729940][ T26] ? kthread_complete_and_exit (kernel/kthread.c:413) [ 995.729940][ T26] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 995.729940][ T26] entry_INT80_32 (arch/x86/entry/entry_32.S:945) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250905/202509051010.e06823ab-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki