INFO: task segctord:5183 blocked for more than 143 seconds.
Not tainted 6.10.0-rc7-syzkaller-00244-g975f3b6da180 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord state:D stack:27944 pid:5183 tgid:5183 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 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
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
nilfs_transaction_lock+0x25d/0x4f0 fs/nilfs2/segment.c:357
nilfs_segctor_thread_construct fs/nilfs2/segment.c:2515 [inline]
nilfs_segctor_thread+0x551/0x11b0 fs/nilfs2/segment.c:2601
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
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by kworker/u8:3/51:
#0: ffff88802a393148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff88802a393148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90000bb7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90000bb7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5d82c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4193
3 locks held by kworker/u8:7/2802:
2 locks held by dhcpcd/4748:
#0: ffff88807ee04678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x780 net/netlink/af_netlink.c:2418
#1: ffffffff8f5d82c8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x5d3/0xe50 net/netlink/af_netlink.c:2336
2 locks held by getty/4832:
#0: ffff88802ad9c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by kworker/1:6/5132:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc90004567d00 (free_ipc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc90004567d00 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
3 locks held by syz.4.5/5182:
1 lock held by segctord/5183:
#0: ffff88807f1172a0 (&nilfs->ns_segctor_sem){++++}-{3:3}, at: nilfs_transaction_lock+0x25d/0x4f0 fs/nilfs2/segment.c:357
3 locks held by kworker/1:7/5771:
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
#0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
#1: ffffc900040f7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
#1: ffffc900040f7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
#2: ffffffff8f5d82c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
2 locks held by syz.0.82/6001:
1 lock held by syz-executor/6530:
1 lock held by syz.3.159/6697:
1 lock held by syz.3.159/6705:
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: open_last_lookups fs/namei.c:3571 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: path_openat+0x7e9/0x35f0 fs/namei.c:3810
1 lock held by syz.3.159/6706:
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3906
1 lock held by syz.3.159/6711:
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: open_last_lookups fs/namei.c:3571 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: path_openat+0x7e9/0x35f0 fs/namei.c:3810
1 lock held by syz.3.159/6712:
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3906
1 lock held by syz.3.159/6718:
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3906
1 lock held by syz.3.159/6720:
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:801 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: open_last_lookups fs/namei.c:3573 [inline]
#0: ffff88805bf40188 (&type->i_mutex_dir_key#25){++++}-{3:3}, at: path_openat+0x7da/0x35f0 fs/namei.c:3810
2 locks held by syz-executor/6722:
#0: ffffffff8f5d82c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f5d82c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
#1: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#1: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939
3 locks held by syz.0.176/6838:
#0: ffff88802d598d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:510 [inline]
#0: ffff88802d598d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2728
#1: ffff88802d598078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x494/0xf60 net/bluetooth/hci_sync.c:5063
#2: ffffffff8f7429c8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline]
#2: ffffffff8f7429c8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xa6/0x240 net/bluetooth/hci_conn.c:2593
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-syzkaller-00244-g975f3b6da180 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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: 141 Comm: kworker/u8:5 Not tainted 6.10.0-rc7-syzkaller-00244-g975f3b6da180 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:lockdep_hardirqs_on_prepare+0x490/0x780 kernel/locking/lockdep.c:4361
Code: 45 4a c7 04 3a 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 60 0f 85 ab 02 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 cc cc cc cc 90 0f 0b 90 48 c7 c7 40 bb ca 8b e8 ea 95 0b 0a
RSP: 0018:ffffc90002cff998 EFLAGS: 00000046
RAX: 230cdd86df5ddd00 RBX: ffff88802d4e4c00 RCX: ffffffff8172d9da
RDX: dffffc0000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c1f5540
RBP: ffffc90002cff998 R08: ffffffff92f765ef R09: 1ffffffff25eecbd
R10: dffffc0000000000 R11: fffffbfff25eecbe R12: ffffea0000b53900
R13: ffff88802d4e4d42 R14: 00000000000c24e8 R15: 0000000000000286
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c96a490131 CR3: 000000000e132000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
kasan_quarantine_put+0xdc/0x230 mm/kasan/quarantine.c:234
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2196 [inline]
slab_free mm/slub.c:4438 [inline]
kmem_cache_free+0x145/0x350 mm/slub.c:4513
skb_kfree_head net/core/skbuff.c:1067 [inline]
skb_free_head net/core/skbuff.c:1081 [inline]
skb_release_data+0x64d/0x880 net/core/skbuff.c:1108
skb_release_all net/core/skbuff.c:1173 [inline]
__kfree_skb net/core/skbuff.c:1187 [inline]
kfree_skb_reason+0x1a3/0x3b0 net/core/skbuff.c:1223
kfree_skb include/linux/skbuff.h:1257 [inline]
ieee80211_iface_work+0x270/0xf10 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
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