INFO: task jbd2/sda1-8:4946 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:24848 pid:4946 tgid:4946 ppid:2 task_flags:0x240040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5527 [inline] __schedule+0x17dd/0x5940 kernel/sched/core.c:7295 __schedule_loop kernel/sched/core.c:7372 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7387 io_schedule+0x7f/0xd0 kernel/sched/core.c:8059 bit_wait_io+0x13/0x110 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x300 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_buffer include/linux/buffer_head.h:444 [inline] jbd2_journal_commit_transaction+0x2f6e/0x5c80 fs/jbd2/commit.c:834 kjournald2+0x3bc/0x740 fs/jbd2/journal.c:200 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: task syz-executor:5602 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:22336 pid:5602 tgid:5602 ppid:5601 task_flags:0x440100 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5527 [inline] __schedule+0x17dd/0x5940 kernel/sched/core.c:7295 __schedule_loop kernel/sched/core.c:7372 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7387 io_schedule+0x7f/0xd0 kernel/sched/core.c:8059 bit_wait_io+0x13/0x110 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x300 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x658/0x10c0 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xec/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x141/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2254 [inline] file_update_time_flags+0x399/0x440 fs/inode.c:2484 ext4_page_mkwrite+0x21f/0x12c0 fs/ext4/inode.c:6902 do_page_mkwrite+0x147/0x310 mm/memory.c:3779 wp_page_shared mm/memory.c:4180 [inline] do_wp_page+0x1a97/0x4b70 mm/memory.c:4403 handle_pte_fault mm/memory.c:6551 [inline] __handle_mm_fault mm/memory.c:6676 [inline] handle_mm_fault+0x15d7/0x3750 mm/memory.c:6843 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7f35a3f6d147 RSP: 002b:00007ffd62502d68 EFLAGS: 00010207 RAX: 00007f35a0800000 RBX: 000055557921ced0 RCX: 00007f35a0800000 RDX: 00007f35a080015b RSI: 000055557928b3c0 RDI: 00007f35a0800020 RBP: 00007ffd62502d80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00005555792183c0 R13: 0000000000000040 R14: 0000000000000001 R15: 0000000000000000 INFO: task syz.5.1341:11653 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.1341 state:D stack:26088 pid:11653 tgid:11653 ppid:7494 task_flags:0x440040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5527 [inline] __schedule+0x17dd/0x5940 kernel/sched/core.c:7295 __schedule_loop kernel/sched/core.c:7372 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7387 io_schedule+0x7f/0xd0 kernel/sched/core.c:8059 bit_wait_io+0x13/0x110 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x300 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x658/0x10c0 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xec/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x141/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2254 [inline] file_update_time_flags+0x399/0x440 fs/inode.c:2484 ext4_page_mkwrite+0x21f/0x12c0 fs/ext4/inode.c:6902 do_page_mkwrite+0x147/0x310 mm/memory.c:3779 do_shared_fault mm/memory.c:6045 [inline] do_fault mm/memory.c:6107 [inline] do_pte_missing+0x757/0x34b0 mm/memory.c:4663 handle_pte_fault mm/memory.c:6527 [inline] __handle_mm_fault mm/memory.c:6676 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6843 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7f780a46baa3 RSP: 002b:00007ffe4fb2b760 EFLAGS: 00010246 RAX: 00000000003ffde8 RBX: 0000000000000000 RCX: 0000001b2fe64000 RDX: 0000001b2fe24000 RSI: 0000000000400000 RDI: 00007f780a7e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe4fb2b9f0 INFO: task syz.2.1342:11654 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.1342 state:D stack:26960 pid:11654 tgid:11654 ppid:5620 task_flags:0x440040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5527 [inline] __schedule+0x17dd/0x5940 kernel/sched/core.c:7295 __schedule_loop kernel/sched/core.c:7372 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7387 io_schedule+0x7f/0xd0 kernel/sched/core.c:8059 bit_wait_io+0x13/0x110 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x300 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x658/0x10c0 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xec/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x141/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2254 [inline] touch_atime+0x568/0x670 fs/inode.c:2329 file_accessed include/linux/fs.h:2277 [inline] ext4_file_mmap_prepare+0x277/0x450 fs/ext4/file.c:901 vfs_mmap_prepare include/linux/fs.h:2069 [inline] call_mmap_prepare mm/vma.c:2792 [inline] __mmap_region mm/vma.c:2890 [inline] mmap_region+0xe95/0x23a0 mm/vma.c:2991 do_mmap+0xe0a/0x1300 mm/mmap.c:573 vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581 ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:619 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9b0659dec2 RSP: 002b:00007ffd27754d08 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000001b33564000 RCX: 00007f9b0659dec2 RDX: 0000000000000003 RSI: 00000000003c0000 RDI: 0000001b33564000 RBP: 0000000000100001 R08: 0000000000000004 R09: 0000000000040000 R10: 0000000000100001 R11: 0000000000000206 R12: 0000000000000131 R13: 000055558e1b0a10 R14: 00000000000bf8a3 R15: 00007ffd27754fe0 INFO: task syz.7.1331:11655 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.1331 state:D stack:26088 pid:11655 tgid:11655 ppid:10876 task_flags:0x440040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5527 [inline] __schedule+0x17dd/0x5940 kernel/sched/core.c:7295 __schedule_loop kernel/sched/core.c:7372 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7387 io_schedule+0x7f/0xd0 kernel/sched/core.c:8059 bit_wait_io+0x13/0x110 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x300 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x658/0x10c0 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xec/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x141/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2254 [inline] file_update_time_flags+0x399/0x440 fs/inode.c:2484 ext4_page_mkwrite+0x21f/0x12c0 fs/ext4/inode.c:6902 do_page_mkwrite+0x147/0x310 mm/memory.c:3779 do_shared_fault mm/memory.c:6045 [inline] do_fault mm/memory.c:6107 [inline] do_pte_missing+0x757/0x34b0 mm/memory.c:4663 handle_pte_fault mm/memory.c:6527 [inline] __handle_mm_fault mm/memory.c:6676 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6843 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7ff8a526baa3 RSP: 002b:00007ffd0a0c65b0 EFLAGS: 00010246 RAX: 00000000003ffde8 RBX: 0000000000000000 RCX: 0000001b34164000 RDX: 0000001b34124000 RSI: 0000000000400000 RDI: 00007ff8a55e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd0a0c6840 INFO: task syz.6.1343:11656 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.6.1343 state:D stack:26088 pid:11656 tgid:11656 ppid:9489 task_flags:0x440040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5527 [inline] __schedule+0x17dd/0x5940 kernel/sched/core.c:7295 __schedule_loop kernel/sched/core.c:7372 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7387 io_schedule+0x7f/0xd0 kernel/sched/core.c:8059 bit_wait_io+0x13/0x110 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x300 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x658/0x10c0 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xec/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x141/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2254 [inline] file_update_time_flags+0x399/0x440 fs/inode.c:2484 ext4_page_mkwrite+0x21f/0x12c0 fs/ext4/inode.c:6902 do_page_mkwrite+0x147/0x310 mm/memory.c:3779 do_shared_fault mm/memory.c:6045 [inline] do_fault mm/memory.c:6107 [inline] do_pte_missing+0x757/0x34b0 mm/memory.c:4663 handle_pte_fault mm/memory.c:6527 [inline] __handle_mm_fault mm/memory.c:6676 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6843 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7ff84d06baa3 RSP: 002b:00007ffdd38a3410 EFLAGS: 00010246 RAX: 00000000003ffde8 RBX: 0000000000000000 RCX: 0000001b2d864000 RDX: 0000001b2d824000 RSI: 0000000000400000 RDI: 00007ff84d3e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffdd38a36a0 Showing all locks held in the system: locks held by khungtaskd/33: 1, last CPU#0: #0: ffffffff8ed5db60 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #0: ffffffff8ed5db60 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8ed5db60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6871 locks held by getty/5372: 2, on CPU#0: #0: ffff888035afe0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 drivers/tty/n_tty.c:2211 locks held by syz-executor/5602: 3, on CPU#1: #0: ffff88807e96cd08 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:309 #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline] #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1fd/0x12c0 fs/ext4/inode.c:6901 #2: ffff888033f82938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 fs/jbd2/transaction.c:444 locks held by syz.5.1341/11653: 3, on CPU#0: #0: ffff888021bcb308 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:309 #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline] #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1fd/0x12c0 fs/ext4/inode.c:6901 #2: ffff888033f82938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 fs/jbd2/transaction.c:444 locks held by syz.2.1342/11654: 3, on CPU#1: #0: ffff88807ee269b8 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:548 [inline] #0: ffff88807ee269b8 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x1dd/0x4e0 mm/util.c:579 #1: ffff888033f86460 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2277 [inline] #1: ffff888033f86460 (sb_writers#4){.+.+}-{0:0}, at: ext4_file_mmap_prepare+0x277/0x450 fs/ext4/file.c:901 #2: ffff888033f82938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 fs/jbd2/transaction.c:444 locks held by syz.7.1331/11655: 3, on CPU#0: #0: ffff888076c80808 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:309 #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline] #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1fd/0x12c0 fs/ext4/inode.c:6901 #2: ffff888033f82938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 fs/jbd2/transaction.c:444 locks held by syz.6.1343/11656: 3, on CPU#1: #0: ffff888032b9f448 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:309 #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline] #1: ffff888033f86558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1fd/0x12c0 fs/ext4/inode.c:6901 #2: ffff888033f82938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 fs/jbd2/transaction.c:444 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 33 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:377 [inline] watchdog+0x1058/0x10d0 kernel/hung_task.c:598 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: 3c 8c 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 13 a1 20 00 fb f4 4c 10 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 RSP: 0018:ffffc900001c7e40 EFLAGS: 00000242 RAX: 0000000002c47a0b RBX: ffffffff819c0490 RCX: 8000000000000001 RDX: 0000000000000001 RSI: ffffffff8e47d8da RDI: ffffffff8c6dc080 RBP: ffffc900001c7f10 R08: ffff8880b8733a1b R09: 1ffff110170e6743 R10: dffffc0000000000 R11: ffffed10170e6744 R12: 0000000000000000 R13: 1ffff11003cd53e8 R14: 1ffff92000038fd0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888124db7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d731762168 CR3: 000000000eb48000 CR4: 00000000003526f0 Call Trace: arch_safe_halt arch/x86/kernel/process.c:767 [inline] default_idle+0x9/0x20 arch/x86/kernel/process.c:768 default_idle_call+0x72/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x2e0/0x540 kernel/sched/idle.c:355 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454 start_secondary+0x101/0x110 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x157