------------[ cut here ]------------
WARNING: CPU: 0 PID: 414 at kernel/kthread.c:83 to_kthread kernel/kthread.c:83 [inline]
WARNING: CPU: 0 PID: 414 at kernel/kthread.c:83 kthread_is_per_cpu+0xc4/0xf0 kernel/kthread.c:519
Modules linked in:
CPU: 0 PID: 414 Comm: syz-executor.2 Not tainted 5.10.49 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:to_kthread kernel/kthread.c:83 [inline]
RIP: 0010:kthread_is_per_cpu+0xc4/0xf0 kernel/kthread.c:519
Code: 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 2e 4c 8b 23 41 83 e4 01 e8 a9 7b 23 00 44 89 e0 5b 5d 41 5c c3 e8 9c 7b 23 00 <0f> 0b eb 88 e8 83 a3 4e 00 e9 68 ff ff ff e8 89 a3 4e 00 eb 9a 48
RSP: 0018:ffff88806ce09c20 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff88803a184bc0 RCX: ffffffff811c076c
RDX: ffff88800f9c3280 RSI: ffffffff811c07e4 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88803a184bc0
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803a184c68
R13: ffff88806ce09da8 R14: ffff88806ce09da8 R15: ffff88803a184bc0
FS: 00000000033bd400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000033c6b38 CR3: 0000000037658000 CR4: 0000000000350ef0
Call Trace:
can_migrate_task+0x90/0xa00 kernel/sched/fair.c:7572
detach_tasks kernel/sched/fair.c:7720 [inline]
load_balance+0xa0e/0x2990 kernel/sched/fair.c:9644
rebalance_domains+0x5a8/0xe00 kernel/sched/fair.c:10038
__do_softirq+0x1b8/0x85f kernel/softirq.c:298
asm_call_irq_on_stack+0x12/0x20
__run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77
invoke_softirq kernel/softirq.c:393 [inline]
__irq_exit_rcu kernel/softirq.c:423 [inline]
irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435
sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1095
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:644
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:193
Code: ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 d1 fd ff ff 0f 1f 44 00 00 <48> 8b 34 24 65 48 8b 14 25 40 ef 01 00 65 8b 05 6c 6b c2 7e a9 00
RSP: 0018:ffff8880376574f8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff84e32f60 RCX: ffffffff813fffd3
RDX: 0000000000000001 RSI: ffff88800f9c3280 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff864f0627
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000467a67
R13: 0000000000000000 R14: ffff88800f9c3280 R15: 0000000000000038
__is_insn_slot_addr+0x77/0x240 kernel/kprobes.c:300
is_kprobe_insn_slot include/linux/kprobes.h:307 [inline]
kernel_text_address kernel/extable.c:149 [inline]
kernel_text_address+0xea/0x120 kernel/extable.c:120
__kernel_text_address+0x9/0x30 kernel/extable.c:105
unwind_get_return_address arch/x86/kernel/unwind_orc.c:318 [inline]
unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:313
arch_stack_walk+0x99/0xf0 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48
kasan_set_track mm/kasan/common.c:56 [inline]
__kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:461
slab_post_alloc_hook mm/slab.h:533 [inline]
slab_alloc_node mm/slub.c:2889 [inline]
slab_alloc mm/slub.c:2897 [inline]
kmem_cache_alloc+0x13b/0x350 mm/slub.c:2902
kmem_cache_zalloc include/linux/slab.h:654 [inline]
jbd2_alloc_handle include/linux/jbd2.h:1554 [inline]
new_handle fs/jbd2/transaction.c:464 [inline]
jbd2__journal_start+0x18c/0x880 fs/jbd2/transaction.c:491
__ext4_journal_start_sb+0x210/0x420 fs/ext4/ext4_jbd2.c:105
__ext4_journal_start fs/ext4/ext4_jbd2.h:328 [inline]
ext4_dirty_inode+0xbc/0x130 fs/ext4/inode.c:5949
__mark_inode_dirty+0x9a4/0x1020 fs/fs-writeback.c:2262
generic_update_time fs/inode.c:1766 [inline]
update_time fs/inode.c:1779 [inline]
touch_atime+0x598/0x690 fs/inode.c:1850
pick_link fs/namei.c:1637 [inline]
step_into+0x1003/0x1be0 fs/namei.c:1712
walk_component+0x171/0x6a0 fs/namei.c:1862
lookup_last fs/namei.c:2305 [inline]
path_lookupat+0x1ba/0x850 fs/namei.c:2329
filename_lookup+0x19f/0x560 fs/namei.c:2362
user_path_at include/linux/namei.h:59 [inline]
ksys_umount fs/namespace.c:1757 [inline]
__do_sys_umount fs/namespace.c:1765 [inline]
__se_sys_umount fs/namespace.c:1763 [inline]
__x64_sys_umount+0xf8/0x180 fs/namespace.c:1763
do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x467a67
Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdccee4e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 000000000000002d RCX: 0000000000467a67
RDX: 00007ffdccee4f6f RSI: 0000000000000002 RDI: 00007ffdccee4f60
RBP: 00007ffdccee4f60 R08: 00000000ffffffff R09: 00007ffdccee4d30
R10: 00000000033beb43 R11: 0000000000000246 R12: 00000000004bee70
R13: 00007ffdccee6030 R14: 00000000033beb00 R15: 00007ffdccee6070
irq event stamp: 187413
hardirqs last enabled at (187412): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last enabled at (187412): [] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191
hardirqs last disabled at (187413): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (187413): [] _raw_spin_lock_irqsave+0x4b/0x50 kernel/locking/spinlock.c:159
softirqs last enabled at (185724): [] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (187409): [] asm_call_irq_on_stack+0x12/0x20
---[ end trace c04859c9de20eeea ]---
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