INFO: task syz-executor249:5098 blocked for more than 143 seconds. Not tainted 6.9.0-next-20240513-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor249 state:D stack:24912 pid:5098 tgid:5098 ppid:5096 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 jfs_umount+0x2ce/0x3a0 fs/jfs/jfs_umount.c:114 jfs_put_super+0x8a/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x136/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1676 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 ptrace_notify+0x2d2/0x380 kernel/signal.c:2402 ptrace_report_syscall include/linux/ptrace.h:415 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline] syscall_exit_work+0xc6/0x190 kernel/entry/common.c:173 syscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline] syscall_exit_to_user_mode+0x273/0x370 kernel/entry/common.c:218 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f46e5dc15b7 RSP: 002b:00007fff5e771d28 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f46e5dc15b7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff5e771de0 RBP: 00007fff5e771de0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff5e772e50 R13: 00005555655796c0 R14: 431bde82d7b634db R15: 00007fff5e772e70 INFO: task syz-executor249:5099 blocked for more than 143 seconds. Not tainted 6.9.0-next-20240513-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor249 state:D stack:24816 pid:5099 tgid:5099 ppid:5096 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 jfs_umount+0x2ce/0x3a0 fs/jfs/jfs_umount.c:114 jfs_put_super+0x8a/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x136/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1676 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 ptrace_notify+0x2d2/0x380 kernel/signal.c:2402 ptrace_report_syscall include/linux/ptrace.h:415 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline] syscall_exit_work+0xc6/0x190 kernel/entry/common.c:173 syscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline] syscall_exit_to_user_mode+0x273/0x370 kernel/entry/common.c:218 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f46e5dc15b7 RSP: 002b:00007fff5e771d28 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f46e5dc15b7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff5e771de0 RBP: 00007fff5e771de0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff5e772e50 R13: 00005555655796c0 R14: 431bde82d7b634db R15: 00007fff5e772e70 Showing all locks held in the system: 5 locks held by kworker/u8:0/11: 1 lock held by khungtaskd/30: #0: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by getty/4849: #0: ffff88802a84f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 1 lock held by syz-executor249/5097: #0: ffff888079e2a0e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff888079e2a0e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888079e2a0e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 2 locks held by syz-executor249/5098: #0: ffff8880745120e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff8880745120e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff8880745120e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8e7412e8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor249/5099: #0: ffff888075bf00e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff888075bf00e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888075bf00e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8e7412e8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor249/5100: #0: ffff8880260f20e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff8880260f20e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff8880260f20e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8e7412e8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor249/5101: #0: ffff888023dc20e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff888023dc20e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888023dc20e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8e7412e8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.9.0-next-20240513-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.9.0-next-20240513-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:get_flush_tlb_info arch/x86/mm/tlb.c:967 [inline] RIP: 0010:flush_tlb_mm_range+0x107/0x5c0 arch/x86/mm/tlb.c:1018 Code: 48 89 44 24 18 48 8b 5c 24 10 48 8d bb 18 06 00 00 be 08 00 00 00 e8 b8 78 b9 00 41 bd 01 00 00 00 f0 4c 0f c1 ab 18 06 00 00 44 9c 48 0a 89 c3 83 f8 08 0f 83 6e 04 00 00 48 8d 1c dd e0 99 RSP: 0018:ffffc90000107660 EFLAGS: 00000002 RAX: 0000000000000001 RBX: ffff888015070000 RCX: ffffffff81429008 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888015070618 RBP: ffffc90000107730 R08: ffff88801507061f R09: 1ffff11002a0e0c3 R10: dffffc0000000000 R11: ffffed1002a0e0c4 R12: 0000000000000000 R13: 0000000000009cf1 R14: 000000000000000c R15: 000000000000000c FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555655816f8 CR3: 000000000e132000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __text_poke+0x955/0xd30 arch/x86/kernel/alternative.c:1931 text_poke arch/x86/kernel/alternative.c:1968 [inline] text_poke_bp_batch+0x8cd/0xb30 arch/x86/kernel/alternative.c:2357 text_poke_flush arch/x86/kernel/alternative.c:2470 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2477 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.607 msecs