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[ 0.851549][ T1] [ 0.851549][ T1] other info that might help us debug this: [ 0.851549][ T1] [ 0.852619][ T1] [ 0.852619][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 0.853448][ T1] 1 lock held by swapper/0/1: [ 0.853945][ T1] #0: ffffffff83bcbfb0 (rcu_read_lock){....}-{1:3}, at: dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.855024][ T1] [ 0.855024][ T1] stack backtrace: [ 0.855624][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.19.0-rc6-00039-ga6e60e2484be #1 PREEMPTLAZY [ 0.856708][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 0.857761][ T1] Call Trace: [ 0.858101][ T1] [ 0.858410][ T1] __dump_stack (lib/dump_stack.c:95) [ 0.858859][ T1] dump_stack_lvl (lib/dump_stack.c:123) [ 0.859338][ T1] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6877) [ 0.859898][ T1] __might_resched (kernel/sched/core.c:8791) [ 0.860395][ T1] __might_sleep (kernel/sched/core.c:8759) [ 0.860868][ T1] slab_pre_alloc_hook (mm/slub.c:4906) [ 0.861392][ T1] slab_alloc_node (mm/slub.c:5239) [ 0.861886][ T1] ? mas_next_slot (lib/maple_tree.c:4410) [ 0.862401][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.862934][ T1] ? ddebug_add_module (lib/dynamic_debug.c:1578) [ 0.863450][ T1] __kmalloc_cache_noprof (mm/slub.c:5771) [ 0.863987][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.864520][ T1] ddebug_add_module (lib/dynamic_debug.c:1578) [ 0.865012][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.865012][ T1] dynamic_debug_init (lib/dynamic_debug.c:1811) [ 0.865012][ T1] ? dyndbg_setup (lib/dynamic_debug.c:1843) [ 0.865012][ T1] __initstub__kmod_dynamic_debug__1505_1843_dynamic_debug_initearly (lib/dynamic_debug.c:1843) [ 0.865012][ T1] do_one_initcall (init/main.c:1378) [ 0.865012][ T1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386) [ 0.865012][ T1] ? __lock_acquire (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876 kernel/locking/lockdep.c:5237) [ 0.865012][ T1] ? ___slab_alloc (include/linux/spinlock.h:? mm/slub.c:3550 mm/slub.c:3630 mm/slub.c:4631) [ 0.865012][ T1] ? _raw_spin_unlock_irqrestore (include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 0.865012][ T1] ? ___slab_alloc (include/linux/spinlock.h:? mm/slub.c:3550 mm/slub.c:3630 mm/slub.c:4631) [ 0.865012][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 0.865012][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:272) [ 0.865012][ T1] ? __register_sysctl_table (include/linux/spinlock.h:? fs/proc/proc_sysctl.c:?) [ 0.865012][ T1] ? local_clock_noinstr (kernel/sched/clock.c:274 kernel/sched/clock.c:309) [ 0.865012][ T1] ? local_clock (arch/x86/include/asm/preempt.h:95 kernel/sched/clock.c:319) [ 0.865012][ T1] ? __register_sysctl_table (include/linux/spinlock.h:? fs/proc/proc_sysctl.c:?) [ 0.865012][ T1] ? _raw_spin_unlock (include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 0.865012][ T1] ? _raw_write_unlock (include/linux/rwlock_api_smp.h:226 kernel/locking/spinlock.c:342) [ 0.865012][ T1] do_pre_smp_initcalls (init/main.c:1483) [ 0.865012][ T1] kernel_init_freeable (init/main.c:1678) [ 0.865012][ T1] ? rest_init (init/main.c:1570) [ 0.865012][ T1] kernel_init (kernel/async.c:297 kernel/async.c:284 init/main.c:1580) [ 0.865012][ T1] ret_from_fork (arch/x86/kernel/process.c:164) [ 0.865012][ T1] ? rest_init (init/main.c:1570) [ 0.865012][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 0.865012][ T1] [ 0.865022][ T1] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:323 [ 0.865708][ T1] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0 [ 0.866337][ T1] preempt_count: 1, expected: 0 [ 0.866679][ T1] 1 lock held by swapper/0/1: [ 0.867004][ T1] #0: ffffffff83bcbfb0 (rcu_read_lock){....}-{1:3}, at: dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.867709][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.19.0-rc6-00039-ga6e60e2484be #1 PREEMPTLAZY [ 0.868476][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 0.869211][ T1] Call Trace: [ 0.869455][ T1] [ 0.869751][ T1] __dump_stack (lib/dump_stack.c:95) [ 0.870190][ T1] dump_stack_lvl (lib/dump_stack.c:123) [ 0.870654][ T1] __might_resched (kernel/sched/core.c:8830) [ 0.871152][ T1] __might_sleep (kernel/sched/core.c:8759) [ 0.871671][ T1] slab_pre_alloc_hook (mm/slub.c:4906) [ 0.872188][ T1] slab_alloc_node (mm/slub.c:5239) [ 0.872680][ T1] ? mas_next_slot (lib/maple_tree.c:4410) [ 0.873174][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.873699][ T1] ? ddebug_add_module (lib/dynamic_debug.c:1578) [ 0.874214][ T1] __kmalloc_cache_noprof (mm/slub.c:5771) [ 0.874768][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.875012][ T1] ddebug_add_module (lib/dynamic_debug.c:1578) [ 0.875012][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.875012][ T1] dynamic_debug_init (lib/dynamic_debug.c:1811) [ 0.875012][ T1] ? dyndbg_setup (lib/dynamic_debug.c:1843) [ 0.875012][ T1] __initstub__kmod_dynamic_debug__1505_1843_dynamic_debug_initearly (lib/dynamic_debug.c:1843) [ 0.875012][ T1] do_one_initcall (init/main.c:1378) [ 0.875012][ T1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386) [ 0.875012][ T1] ? __lock_acquire (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876 kernel/locking/lockdep.c:5237) [ 0.875012][ T1] ? ___slab_alloc (include/linux/spinlock.h:? mm/slub.c:3550 mm/slub.c:3630 mm/slub.c:4631) [ 0.875012][ T1] ? _raw_spin_unlock_irqrestore (include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 0.875012][ T1] ? ___slab_alloc (include/linux/spinlock.h:? mm/slub.c:3550 mm/slub.c:3630 mm/slub.c:4631) [ 0.875012][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 0.875012][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:272) [ 0.875012][ T1] ? __register_sysctl_table (include/linux/spinlock.h:? fs/proc/proc_sysctl.c:?) [ 0.875012][ T1] ? local_clock_noinstr (kernel/sched/clock.c:274 kernel/sched/clock.c:309) [ 0.875012][ T1] ? local_clock (arch/x86/include/asm/preempt.h:95 kernel/sched/clock.c:319) [ 0.875012][ T1] ? __register_sysctl_table (include/linux/spinlock.h:? fs/proc/proc_sysctl.c:?) [ 0.875012][ T1] ? _raw_spin_unlock (include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 0.875012][ T1] ? _raw_write_unlock (include/linux/rwlock_api_smp.h:226 kernel/locking/spinlock.c:342) [ 0.875012][ T1] do_pre_smp_initcalls (init/main.c:1483) [ 0.875012][ T1] kernel_init_freeable (init/main.c:1678) [ 0.875012][ T1] ? rest_init (init/main.c:1570) [ 0.875012][ T1] kernel_init (kernel/async.c:297 kernel/async.c:284 init/main.c:1580) [ 0.875012][ T1] ret_from_fork (arch/x86/kernel/process.c:164) [ 0.875012][ T1] ? rest_init (init/main.c:1570) [ 0.875012][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 0.875012][ T1] [ 0.875048][ T1] [ 0.875307][ T1] ============================= [ 0.875808][ T1] [ BUG: Invalid wait context ] [ 0.876315][ T1] 6.19.0-rc6-00039-ga6e60e2484be #1 Tainted: G W [ 0.877174][ T1] ----------------------------- [ 0.877679][ T1] swapper/0/1 is trying to lock: [ 0.878204][ T1] ffffffff83ccd418 (ddebug_lock){....}-{4:4}, at: ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601) [ 0.879138][ T1] other info that might help us debug this: [ 0.879750][ T1] context-{5:5} [ 0.880110][ T1] 1 lock held by swapper/0/1: [ 0.880591][ T1] #0: ffffffff83bcbfb0 (rcu_read_lock){....}-{1:3}, at: dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.881525][ T1] stack backtrace: [ 0.881915][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.19.0-rc6-00039-ga6e60e2484be #1 PREEMPTLAZY [ 0.883184][ T1] Tainted: [W]=WARN [ 0.883576][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 0.884654][ T1] Call Trace: [ 0.884990][ T1] [ 0.885012][ T1] __dump_stack (lib/dump_stack.c:95) [ 0.885012][ T1] dump_stack_lvl (lib/dump_stack.c:123) [ 0.885012][ T1] __lock_acquire (kernel/locking/lockdep.c:4832 kernel/locking/lockdep.c:4902 kernel/locking/lockdep.c:5187) [ 0.885012][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 0.885012][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601) [ 0.885012][ T1] lock_acquire (kernel/locking/lockdep.c:5868) [ 0.885012][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601) [ 0.885012][ T1] ? __might_resched (kernel/sched/core.c:8791) [ 0.885012][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601) [ 0.885012][ T1] __mutex_lock (kernel/locking/mutex.c:614 kernel/locking/mutex.c:776) [ 0.885012][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601) [ 0.885012][ T1] mutex_lock_nested (kernel/locking/mutex.c:829) [ 0.885012][ T1] ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601) [ 0.885012][ T1] ? dynamic_debug_init (include/linux/rcupdate.h:331 include/linux/rcupdate.h:867 lib/dynamic_debug.c:1800) [ 0.885012][ T1] dynamic_debug_init (lib/dynamic_debug.c:1811) [ 0.885012][ T1] ? dyndbg_setup (lib/dynamic_debug.c:1843) [ 0.885012][ T1] __initstub__kmod_dynamic_debug__1505_1843_dynamic_debug_initearly (lib/dynamic_debug.c:1843) [ 0.885012][ T1] do_one_initcall (init/main.c:1378) [ 0.885012][ T1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386) [ 0.885012][ T1] ? __lock_acquire (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876 kernel/locking/lockdep.c:5237) [ 0.885012][ T1] ? ___slab_alloc (include/linux/spinlock.h:? mm/slub.c:3550 mm/slub.c:3630 mm/slub.c:4631) [ 0.885012][ T1] ? _raw_spin_unlock_irqrestore (include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 0.885012][ T1] ? ___slab_alloc (include/linux/spinlock.h:? mm/slub.c:3550 mm/slub.c:3630 mm/slub.c:4631) [ 0.885012][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 0.885012][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:272) [ 0.885012][ T1] ? __register_sysctl_table (include/linux/spinlock.h:? fs/proc/proc_sysctl.c:?) [ 0.885012][ T1] ? local_clock_noinstr (kernel/sched/clock.c:274 kernel/sched/clock.c:309) [ 0.885012][ T1] ? local_clock (arch/x86/include/asm/preempt.h:95 kernel/sched/clock.c:319) [ 0.885012][ T1] ? __register_sysctl_table (include/linux/spinlock.h:? fs/proc/proc_sysctl.c:?) [ 0.885012][ T1] ? _raw_spin_unlock (include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 0.885012][ T1] ? _raw_write_unlock (include/linux/rwlock_api_smp.h:226 kernel/locking/spinlock.c:342) [ 0.885012][ T1] do_pre_smp_initcalls (init/main.c:1483) [ 0.885012][ T1] kernel_init_freeable (init/main.c:1678) [ 0.885012][ T1] ? rest_init (init/main.c:1570) [ 0.885012][ T1] kernel_init (kernel/async.c:297 kernel/async.c:284 init/main.c:1580) [ 0.885012][ T1] ret_from_fork (arch/x86/kernel/process.c:164) [ 0.885012][ T1] ? rest_init (init/main.c:1570) [ 0.885012][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 0.885012][ T1] [ 0.896451][ T1] Memory: 32541600K/33553912K available (24738K kernel code, 10275K rwdata, 11116K rodata, 2024K init, 14052K bss, 991524K reserved, 0K cma-reserved) [ 0.899956][ T1] devtmpfs: initialized The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260126/202601262015.5f498cb8-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki