INFO: task kworker/u8:4:62 blocked for more than 143 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:4 state:D stack:20600 pid:62 tgid:62 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-btrfs-13)
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
wait_extent_bit fs/btrfs/extent-io-tree.c:820 [inline]
__lock_extent+0x6aa/0x860 fs/btrfs/extent-io-tree.c:1866
lock_extent fs/btrfs/extent-io-tree.h:148 [inline]
btrfs_invalidate_folio+0x42d/0xcf0 fs/btrfs/inode.c:7315
extent_writepage fs/btrfs/extent_io.c:1482 [inline]
extent_write_cache_pages fs/btrfs/extent_io.c:2194 [inline]
btrfs_writepages+0x11ac/0x20e0 fs/btrfs/extent_io.c:2325
do_writepages+0x35f/0x880 mm/page-writeback.c:2702
__writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
writeback_sb_inodes+0x820/0x1360 fs/fs-writeback.c:1976
wb_writeback+0x413/0xb80 fs/fs-writeback.c:2156
wb_do_writeback fs/fs-writeback.c:2303 [inline]
wb_workfn+0x410/0x1080 fs/fs-writeback.c:2343
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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: task syz.1.99:6797 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.99 state:D stack:24128 pid:6797 tgid:6797 ppid:5821 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
btrfs_page_mkwrite+0x62a/0x1540 fs/btrfs/file.c:1843
do_page_mkwrite+0x15c/0x350 mm/memory.c:3176
wp_page_shared mm/memory.c:3577 [inline]
do_wp_page+0x23cd/0x49b0 mm/memory.c:3727
handle_pte_fault+0xfa5/0x5ed0 mm/memory.c:5817
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f12af14da6b
RSP: 002b:00007ffc72c86aa8 EFLAGS: 00010202
RAX: 0000000020000ac0 RBX: 0000000000000004 RCX: 0000000000746166
RDX: 0000000000000005 RSI: 0000000074616676 RDI: 0000000020000ac0
RBP: 00007f12af377ba0 R08: 00007f12af000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 000000000002708f
R13: 00007ffc72c86bb0 R14: 0000000000000032 R15: fffffffffffffffe
INFO: task syz.1.99:6798 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.99 state:D stack:19936 pid:6798 tgid:6797 ppid:5821 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
wait_current_trans+0x343/0x4b0 fs/btrfs/transaction.c:524
start_transaction+0xae2/0x1670 fs/btrfs/transaction.c:694
clone_copy_inline_extent fs/btrfs/reflink.c:295 [inline]
btrfs_clone+0x170c/0x2970 fs/btrfs/reflink.c:529
btrfs_clone_files+0x27c/0x3a0 fs/btrfs/reflink.c:751
btrfs_remap_file_range+0x615/0x1210 fs/btrfs/reflink.c:889
vfs_copy_file_range+0xc07/0x1510 fs/read_write.c:1584
__do_sys_copy_file_range fs/read_write.c:1670 [inline]
__se_sys_copy_file_range+0x3fa/0x600 fs/read_write.c:1637
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f12af185d29
RSP: 002b:00007f12affb6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f12af375fa0 RCX: 00007f12af185d29
RDX: 0000000000000009 RSI: 0000000000000000 RDI: 000000000000000a
RBP: 00007f12af201b08 R08: 0000000000003df1 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f12af375fa0 R15: 00007ffc72c86948
INFO: task btrfs-transacti:6845 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:btrfs-transacti state:D stack:28816 pid:6845 tgid:6845 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
wait_current_trans+0x343/0x4b0 fs/btrfs/transaction.c:524
start_transaction+0xb15/0x1670 fs/btrfs/transaction.c:699
transaction_kthread+0x231/0x500 fs/btrfs/disk-io.c:1594
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: task syz.6.102:6848 blocked for more than 145 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.102 state:D stack:22880 pid:6848 tgid:6847 ppid:6118 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:216
__writeback_inodes_sb_nr+0x2d2/0x380 fs/fs-writeback.c:2735
try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2783
btrfs_start_delalloc_flush fs/btrfs/transaction.c:2122 [inline]
btrfs_commit_transaction+0x88e/0x3720 fs/btrfs/transaction.c:2307
iterate_supers+0xc6/0x190 fs/super.c:934
ksys_sync+0xdb/0x1c0 fs/sync.c:104
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8104d85d29
RSP: 002b:00007f8105be1038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f8104f75fa0 RCX: 00007f8104d85d29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f8104f75fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8104f75fa0 R15: 00007fffaba2a468
Showing all locks held in the system:
3 locks held by kworker/u8:1/12:
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000117d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000117d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
2 locks held by kworker/u8:4/62:
#0: ffff88801eab3948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801eab3948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc9000213fd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000213fd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
5 locks held by kworker/u8:5/1160:
#0: ffff8880b863e758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffff8880b8628948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffff8880b862a718 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x744/0xeb0 kernel/time/timer.c:1163
#3: ffff8880b8628948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_change+0xed/0x270 kernel/sched/psi.c:912
#4: ffffffff9a5c2a08 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:1088 [inline]
#4: ffffffff9a5c2a08 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0x234/0x580 lib/debugobjects.c:1129
4 locks held by kworker/u8:6/1870:
#0: ffff88801baeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801baeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90005287d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90005287d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fc94490 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x16a/0xd50 net/core/net_namespace.c:602
#3: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0xe9/0xaa0 net/core/dev.c:12061
1 lock held by dhcpcd/5487:
#0: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#0: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xce2/0x2210 net/core/rtnetlink.c:4011
2 locks held by getty/5581:
#0: ffff888036a2a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by syz.1.99/6797:
#0: ffff8880305a4b68 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff8880305a4b68 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x34b/0x790 mm/memory.c:6278
#1: ffff8880756f6518 (sb_pagefaults#2){.+.+}-{0:0}, at: do_page_mkwrite+0x15c/0x350 mm/memory.c:3176
#2: ffff888073f3c8b8 (&ei->i_mmap_lock){++++}-{4:4}, at: btrfs_page_mkwrite+0x62a/0x1540 fs/btrfs/file.c:1843
6 locks held by syz.1.99/6798:
#0: ffff8880756f6420 (sb_writers#13){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff8880756f6420 (sb_writers#13){.+.+}-{0:0}, at: vfs_copy_file_range+0x9d2/0x1510 fs/read_write.c:1572
#1: ffff888073f3c180 (&sb->s_type->i_mutex_key#21){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff888073f3c180 (&sb->s_type->i_mutex_key#21){++++}-{4:4}, at: lock_two_nondirectories+0xe1/0x170 fs/inode.c:1281
#2: ffff888073f3ca28 (&sb->s_type->i_mutex_key#21/4){+.+.}-{4:4}, at: btrfs_remap_file_range+0x184/0x1210 fs/btrfs/reflink.c:877
#3: ffff888073f3c8b8 (&ei->i_mmap_lock){++++}-{4:4}, at: btrfs_double_mmap_lock fs/btrfs/reflink.c:624 [inline]
#3: ffff888073f3c8b8 (&ei->i_mmap_lock){++++}-{4:4}, at: btrfs_remap_file_range+0x1a1/0x1210 fs/btrfs/reflink.c:878
#4: ffff888073f3c010 (&ei->i_mmap_lock/1){+.+.}-{4:4}, at: btrfs_double_mmap_lock fs/btrfs/reflink.c:625 [inline]
#4: ffff888073f3c010 (&ei->i_mmap_lock/1){+.+.}-{4:4}, at: btrfs_remap_file_range+0x1bd/0x1210 fs/btrfs/reflink.c:878
#5: ffff8880756f6610 (sb_internal#2){.+.+}-{0:0}, at: clone_copy_inline_extent fs/btrfs/reflink.c:295 [inline]
#5: ffff8880756f6610 (sb_internal#2){.+.+}-{0:0}, at: btrfs_clone+0x170c/0x2970 fs/btrfs/reflink.c:529
1 lock held by btrfs-transacti/6845:
#0: ffff8880122d07c0 (&fs_info->transaction_kthread_mutex){+.+.}-{4:4}, at: transaction_kthread+0x100/0x500 fs/btrfs/disk-io.c:1571
4 locks held by syz.6.102/6848:
#0: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880122d2470 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x405/0xda0 fs/btrfs/transaction.c:288
#2: ffff8880122d2498 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transaction+0x405/0xda0 fs/btrfs/transaction.c:288
#3: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: try_to_writeback_inodes_sb+0x21/0xc0 fs/fs-writeback.c:2780
2 locks held by syz-executor/7039:
#0: ffff8880356220e0 (&type->s_umount_key#78){+.+.}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880356220e0 (&type->s_umount_key#78){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880356220e0 (&type->s_umount_key#78){+.+.}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffff888045080278 (&c->state_lock){+.+.}-{4:4}, at: __bch2_fs_stop+0xfd/0x5c0 fs/bcachefs/super.c:620
3 locks held by kworker/u8:10/7055:
#0: ffff888030ea5148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888030ea5148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc900042efd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900042efd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4215
3 locks held by syz-executor/7937:
#0: ffff88806e9a4d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:480 [inline]
#0: ffff88806e9a4d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2697
#1: ffff88806e9a4078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200
#2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
2 locks held by syz.1.358/9237:
#0: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880756f47d0 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:387 [inline]
#1: ffff8880756f47d0 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x26e/0xb50 fs/fs-writeback.c:2819
2 locks held by syz.1.358/9238:
#0: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
#0: ffff8880756f60e0 (&type->s_umount_key#51){++++}-{4:4}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880756f47d0 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:387 [inline]
#1: ffff8880756f47d0 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x26e/0xb50 fs/fs-writeback.c:2819
2 locks held by syz.2.369/9333:
#0: ffff888076258d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:480 [inline]
#0: ffff888076258d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2697
#1: ffff888076258078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200
2 locks held by syz-executor/9369:
#0: ffffffff90188ed0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff90188ed0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff90188ed0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:555
#1: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#1: ffffffff8fca0948 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xce2/0x2210 net/core/rtnetlink.c:4011
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
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 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111