syzbot

INFO: task kworker/u4:3:5150 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:3    state:D stack:26888 pid:5150  ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 schedule+0xde/0x1a0 kernel/sched/core.c:6745
 queue_log_writer+0x293/0x2f0 fs/reiserfs/journal.c:2980
 check_journal_end fs/reiserfs/journal.c:3674 [inline]
 do_journal_end+0x908/0x4af0 fs/reiserfs/journal.c:4040
 reiserfs_write_inode+0x27e/0x2d0 fs/reiserfs/inode.c:1779
 write_inode fs/fs-writeback.c:1456 [inline]
 __writeback_single_inode+0x9f2/0xdb0 fs/fs-writeback.c:1668
 writeback_sb_inodes+0x54d/0xe70 fs/fs-writeback.c:1894
 wb_writeback+0x155/0xa40 fs/fs-writeback.c:2070
 wb_do_writeback fs/fs-writeback.c:2217 [inline]
 wb_workfn+0x2a5/0xcc0 fs/fs-writeback.c:2257
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task syz-executor328:5208 blocked for more than 144 seconds.
      Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor328 state:D stack:24160 pid:5208  ppid:5039   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 schedule+0xde/0x1a0 kernel/sched/core.c:6745
 bit_wait+0x16/0xe0 kernel/sched/wait_bit.c:199
 __wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49
 __inode_wait_for_writeback+0x153/0x1f0 fs/fs-writeback.c:1477
 inode_wait_for_writeback+0x26/0x40 fs/fs-writeback.c:1489
 evict+0x2b7/0x6b0 fs/inode.c:662
 iput_final fs/inode.c:1747 [inline]
 iput fs/inode.c:1773 [inline]
 iput+0x4a7/0x7a0 fs/inode.c:1759
 dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
 d_delete fs/dcache.c:2565 [inline]
 d_delete+0x16f/0x1c0 fs/dcache.c:2554
 xattr_unlink+0x139/0x190 fs/reiserfs/xattr.c:97
 lookup_and_delete_xattr fs/reiserfs/xattr.c:495 [inline]
 reiserfs_xattr_set_handle+0x7bd/0xb00 fs/reiserfs/xattr.c:530
 reiserfs_xattr_set+0x454/0x5b0 fs/reiserfs/xattr.c:634
 trusted_set+0xa7/0xd0 fs/reiserfs/xattr_trusted.c:31
 __vfs_removexattr+0x155/0x1c0 fs/xattr.c:519
 __vfs_removexattr_locked+0x1b0/0x440 fs/xattr.c:554
 vfs_removexattr+0xcf/0x260 fs/xattr.c:576
 ovl_do_removexattr fs/overlayfs/overlayfs.h:273 [inline]
 ovl_removexattr fs/overlayfs/overlayfs.h:281 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1353 [inline]
 ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
 ovl_fill_super+0x6ec5/0x7270 fs/overlayfs/super.c:1992
 mount_nodev+0x64/0x120 fs/super.c:1426
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x350 fs/super.c:1510
 do_new_mount fs/namespace.c:3039 [inline]
 path_mount+0x134b/0x1e40 fs/namespace.c:3369
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbf698f6b19
RSP: 002b:00007fbf698a22f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbf6997c7a0 RCX: 00007fbf698f6b19
RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007fbf699492d8 R08: 0000000020000480 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0079616c7265766f
R13: d5e172a4510865ec R14: 9837512483e3bdcd R15: 00007fbf6997c7a8
 </TASK>
INFO: task syz-executor328:5218 blocked for more than 144 seconds.
      Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor328 state:D stack:28496 pid:5218  ppid:5039   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 schedule+0xde/0x1a0 kernel/sched/core.c:6745
 wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
 sync_inodes_sb+0x1aa/0xa60 fs/fs-writeback.c:2736
 sync_filesystem.part.0+0xe6/0x1d0 fs/sync.c:64
 sync_filesystem+0x8f/0xc0 fs/sync.c:43
 reiserfs_remount+0x129/0x1650 fs/reiserfs/super.c:1445
 legacy_reconfigure+0x119/0x180 fs/fs_context.c:633
 reconfigure_super+0x40c/0xa30 fs/super.c:956
 do_remount fs/namespace.c:2701 [inline]
 path_mount+0x1846/0x1e40 fs/namespace.c:3361
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbf698f7fda
RSP: 002b:00007fbf61881118 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbf618816b8 RCX: 00007fbf698f7fda
RDX: 00000000200001c0 RSI: 0000000020000100 RDI: 0000000000000000
RBP: 00000000ffffffff R08: 00007fbf618811b0 R09: 0000000000000000
R10: 0000000001a484bc R11: 0000000000000286 R12: 00000000200001c0
R13: 0000000020000100 R14: 0000000000000000 R15: 00000000200006c0
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8c798530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8c798230 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
 #0: ffffffff8c799140 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6559
2 locks held by kworker/u4:4/56:
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2378
 #1: ffffc90001577db0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2382
1 lock held by klogd/4444:
 #0: ffff8880b993c5d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:558
2 locks held by getty/4755:
 #0: ffff88802c822098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor328/5040:
 #0: ffff8880717e60e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:361
 #1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
 #1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor328/5043:
 #0: ffff88806f69e0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:361
2 locks held by syz-executor328/5044:
 #0: ffff888021fa20e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:361
 #1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
 #1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
2 locks held by kworker/1:0/5071:
 #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
 #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
 #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
 #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2378
 #1: 
ffffc90003d6fdb0 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2382
2 locks held by kworker/u4:3/5150:
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
 #0: ffff8880132d5938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2378
 #1: ffffc9000437fdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2382
4 locks held by syz-executor328/5208:
 #0: ffff88807db020e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
 #1: ffff88807ebd0460 (sb_writers#9){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:1282 [inline]
 #1: ffff88807ebd0460 (sb_writers#9){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
 #1: ffff88807ebd0460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 fs/overlayfs/super.c:1992
 #2: ffff888070c4fa20 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
 #2: ffff888070c4fa20 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 fs/xattr.c:575
 #3: ffff888070c5a400 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
 #3: ffff888070c5a400 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: lookup_and_delete_xattr fs/reiserfs/xattr.c:487 [inline]
 #3: ffff888070c5a400 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 fs/reiserfs/xattr.c:530
2 locks held by syz-executor328/5218:
 #0: ffff88807ebd00e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: do_remount fs/namespace.c:2698 [inline]
 #0: ffff88807ebd00e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 fs/namespace.c:3361
 #1: ffff8881407047d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
 #1: ffff8881407047d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 fs/fs-writeback.c:2734
4 locks held by syz-executor328/7343:
 #0: ffff88806f4880e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
 #1: ffff88807b818460 (sb_writers#9){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:1282 [inline]
 #1: ffff88807b818460 (sb_writers#9){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:1436 [inline]
 #1: ffff88807b818460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 fs/overlayfs/super.c:1992
 #2: ffff888070c4b140 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
 #2: ffff888070c4b140 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 fs/xattr.c:575
 #3: ffff8880783e7a20 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
 #3: ffff8880783e7a20 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: lookup_and_delete_xattr fs/reiserfs/xattr.c:487 [inline]
 #3: ffff8880783e7a20 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 fs/reiserfs/xattr.c:530
2 locks held by syz-executor328/7358:
 #0: ffff88807b8180e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: do_remount fs/namespace.c:2698 [inline]
 #0: ffff88807b8180e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 fs/namespace.c:3361
 #1: ffff88801f05c7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
 #1: ffff88801f05c7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 fs/fs-writeback.c:2734
1 lock held by syz-executor328/8184:
 #0: ffff8880795aa0e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xe16/0x1090 kernel/hung_task.c:379
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4455 Comm: udevd Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3740 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3760 [inline]
RIP: 0010:validate_chain kernel/locking/lockdep.c:3815 [inline]
RIP: 0010:__lock_acquire+0x19cb/0x5f30 kernel/locking/lockdep.c:5088
Code: 08 49 c1 ec 2f 84 c0 4e 8d 2c e5 60 2c 42 91 0f 84 c2 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 53 3d 00 00 4a 8b 1c e5 60 2c 42 91 48 85 db 74 63 48 83 eb
RSP: 0018:ffffc900031cf6d0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000000082 RCX: ffffffff81657997
RDX: 1ffffffff2287b26 RSI: 0000000000000008 RDI: ffffffff9153ad10
RBP: ffff88807dfebb80 R08: 0000000000000000 R09: fffffbfff22a75a2
R10: ffffffff9153ad17 R11: 0000000000000001 R12: 000000000000359a
R13: ffffffff9143d930 R14: 0000000000000000 R15: ffff88807dfec670
FS:  00007ff8af7d8c80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd76c20de8 CR3: 000000002878a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire.part.0+0x11c/0x370 kernel/locking/lockdep.c:5705
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:350 [inline]
 __d_lookup+0x18c/0x4c0 fs/dcache.c:2488
 lookup_fast+0x170/0x520 fs/namei.c:1648
 walk_component+0x5e/0x5a0 fs/namei.c:1994
 link_path_walk.part.0+0x74e/0xd60 fs/namei.c:2325
 link_path_walk fs/namei.c:2250 [inline]
 path_openat+0x25c/0x2750 fs/namei.c:3787
 do_filp_open+0x1ba/0x410 fs/namei.c:3818
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1356
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __x64_sys_openat+0x143/0x1f0 fs/open.c:1383
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff8af31a477
Code: 10 00 00 00 44 8b 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 82 69 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffc15763b78 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055cb53f0a490 RCX: 00007ff8af31a477
RDX: 0000000000090800 RSI: 000055cb53f04b50 RDI: 00000000ffffff9c
RBP: 000055cb53f342f0 R08: 0000000000090800 R09: 000055cb53f04b50
R10: 0000000000000000 R11: 0000000000000287 R12: 000055cb53f04b50
R13: 00000000000000fe R14: 000055cb531a51c4 R15: 0000000000000000
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.962 msecs