INFO: task kworker/1:0H:26 blocked for more than 143 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0H state:D stack:24984 pid:26 tgid:26 ppid:2 flags:0x00004000
Workqueue: bcachefs_btree_io btree_node_write_work
Call Trace:
<TASK>
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
six_lock_slowpath+0x660/0x1680 fs/bcachefs/six.c:499
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:556
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:225 [inline]
btree_node_lock_nopath+0xa4/0x150 fs/bcachefs/btree_locking.h:241
btree_node_lock fs/bcachefs/btree_locking.h:289 [inline]
btree_path_lock_root fs/bcachefs/btree_iter.c:748 [inline]
bch2_btree_path_traverse_one+0xc39/0x2940 fs/bcachefs/btree_iter.c:1183
bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline]
bch2_btree_iter_traverse+0x699/0xc30 fs/bcachefs/btree_iter.c:1880
bch2_btree_node_update_key_get_iter+0x1a5/0x8c0 fs/bcachefs/btree_update_interior.c:2482
btree_node_write_work+0x774/0xba0 fs/bcachefs/btree_io.c:1870
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
</TASK>
INFO: task kworker/0:1H:39 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1H state:D stack:24984 pid:39 tgid:39 ppid:2 flags:0x00004000
Workqueue: bcachefs_btree_io btree_node_write_work
Call Trace:
<TASK>
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
six_lock_slowpath+0x660/0x1680 fs/bcachefs/six.c:499
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:556
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:225 [inline]
__bch2_btree_node_lock_write+0x10a/0x390 fs/bcachefs/btree_locking.c:418
__btree_node_lock_write fs/bcachefs/btree_locking.h:319 [inline]
bch2_btree_node_lock_write_nofail+0x24c/0x440 fs/bcachefs/btree_locking.c:432
__bch2_btree_node_update_key fs/bcachefs/btree_update_interior.c:2396 [inline]
bch2_btree_node_update_key+0x1718/0x3090 fs/bcachefs/btree_update_interior.c:2460
bch2_btree_node_update_key_get_iter+0x731/0x8c0 fs/bcachefs/btree_update_interior.c:2498
btree_node_write_work+0x774/0xba0 fs/bcachefs/btree_io.c:1870
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
</TASK>
INFO: task kworker/u9:4:5822 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u9:4 state:D
stack:21008 pid:5822 tgid:5822 ppid:2 flags:0x00004000
Workqueue: bcachefs bch2_write_point_do_index_updates
Call Trace:
<TASK>
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
six_lock_slowpath+0x660/0x1680 fs/bcachefs/six.c:499
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:556
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:225 [inline]
btree_node_lock_nopath+0xa4/0x150 fs/bcachefs/btree_locking.h:241
btree_node_lock fs/bcachefs/btree_locking.h:289 [inline]
btree_path_lock_root fs/bcachefs/btree_iter.c:748 [inline]
bch2_btree_path_traverse_one+0xc39/0x2940 fs/bcachefs/btree_iter.c:1183
bch2_btree_path_traverse_all fs/bcachefs/btree_iter.c:1027 [inline]
bch2_trans_begin+0x10c1/0x1bf0 fs/bcachefs/btree_iter.c:3128
bch2_write_index_default fs/bcachefs/io_write.c:356 [inline]
__bch2_write_index+0x4a2/0x2140 fs/bcachefs/io_write.c:526
bch2_write_point_do_index_updates+0x32e/0x690 fs/bcachefs/io_write.c:635
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
</TASK>
INFO: task kworker/u8:10:12926 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:10 state:D stack:20880 pid:12926 tgid:12926 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-bcachefs-135)
Call Trace:
<TASK>
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
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1308
folio_lock include/linux/pagemap.h:1151 [inline]
writeback_get_folio mm/page-writeback.c:2515 [inline]
writeback_iter+0x8ad/0x12b0 mm/page-writeback.c:2609
write_cache_pages+0xb1/0x230 mm/page-writeback.c:2658
bch2_writepages+0x156/0x390 fs/bcachefs/fs-io-buffered.c:639
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
__writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2047
wb_writeback+0x427/0xb80 fs/fs-writeback.c:2158
wb_check_background_flush fs/fs-writeback.c:2228 [inline]
wb_do_writeback fs/fs-writeback.c:2316 [inline]
wb_workfn+0xc4b/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
</TASK>
INFO: task syz.1.1005:15822 blocked for more than 145 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1005 state:D stack:14368 pid:15822 tgid:15821 ppid:14359 flags:0x00000004
Call Trace:
<TASK>
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
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1308
folio_wait_writeback+0xb0/0x100 mm/page-writeback.c:3194
folio_prepare_writeback mm/page-writeback.c:2474 [inline]
writeback_get_folio mm/page-writeback.c:2516 [inline]
writeback_iter+0xa13/0x12b0 mm/page-writeback.c:2609
write_cache_pages+0xb1/0x230 mm/page-writeback.c:2658
bch2_writepages+0x156/0x390 fs/bcachefs/fs-io-buffered.c:639
do_writepages+0x35f/0x880 mm/page-writeback.c:2702
filemap_fdatawrite_wbc mm/filemap.c:397 [inline]
__filemap_fdatawrite_range mm/filemap.c:430 [inline]
file_write_and_wait_range+0x2a3/0x3c0 mm/filemap.c:787
bch2_fsync+0x13a/0x350 fs/bcachefs/fs-io.c:199
generic_write_sync include/linux/fs.h:2904 [inline]
bch2_write_iter+0x2918/0x2c10 fs/bcachefs/fs-io-buffered.c:1061
do_iter_readv_writev+0x600/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_pwritev fs/read_write.c:1146 [inline]
__do_sys_pwritev2 fs/read_write.c:1204 [inline]
__se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195
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: 0033:0x7f702a185d29
RSP: 002b:00007f7027ff6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f702a375fa0 RCX: 00007f702a185d29
RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000005
RBP: 00007f702a201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7b R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f702a375fa0 R15: 00007ffcdf74e258
</TASK>
INFO: task syz.1.1005:15864 blocked for more than 145 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1005 state:D stack:15296 pid:15864 tgid:15821 ppid:14359 flags:0x00000004
Call Trace:
<TASK>
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
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1308
folio_wait_writeback+0xb0/0x100 mm/page-writeback.c:3194
__filemap_fdatawait_range+0x17c/0x2b0 mm/filemap.c:532
file_write_and_wait_range+0x2f1/0x3c0 mm/filemap.c:791
bch2_fsync+0x13a/0x350 fs/bcachefs/fs-io.c:199
generic_write_sync include/linux/fs.h:2904 [inline]
bch2_write_iter+0x2918/0x2c10 fs/bcachefs/fs-io-buffered.c:1061
do_iter_readv_writev+0x600/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_pwritev fs/read_write.c:1146 [inline]
__do_sys_pwritev2 fs/read_write.c:1204 [inline]
__se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195
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: 0033:0x7f702a185d29
RSP: 002b:00007f7027fd5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f702a376080 RCX: 00007f702a185d29
RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000005
RBP: 00007f702a201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7b R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f702a376080 R15: 00007ffcdf74e258
</TASK>
INFO: task syz.1.1005:15872 blocked for more than 146 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1005 state:D stack:25944 pid:15872 tgid:15821 ppid:14359 flags:0x00000004
Call Trace:
<TASK>
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
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1308
__folio_lock mm/filemap.c:1646 [inline]
folio_lock include/linux/pagemap.h:1151 [inline]
__filemap_get_folio+0x14c/0x940 mm/filemap.c:1899
folio_hole_offset fs/bcachefs/fs-io-pagecache.c:752 [inline]
bch2_seek_pagecache_hole+0xc1/0x7a0 fs/bcachefs/fs-io-pagecache.c:789
bch2_seek_hole fs/bcachefs/fs-io.c:960 [inline]
bch2_llseek+0xc6b/0x2a00 fs/bcachefs/fs-io.c:1004
vfs_llseek fs/read_write.c:382 [inline]
ksys_lseek fs/read_write.c:395 [inline]
__do_sys_lseek fs/read_write.c:405 [inline]
__se_sys_lseek fs/read_write.c:403 [inline]
__x64_sys_lseek+0x14c/0x1e0 fs/read_write.c:403
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: 0033:0x7f702a185d29
RSP: 002b:00007f7027fb4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f702a376160 RCX: 00007f702a185d29
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f702a201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f702a376160 R15: 00007ffcdf74e258
</TASK>
INFO: task bch-reclaim/loo:15848 blocked for more than 146 seconds.
Not tainted 6.13.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:15408 pid:15848 tgid:15848 ppid:2 flags:0x00004000
Call Trace:
<TASK>
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
six_lock_slowpath+0x660/0x1680 fs/bcachefs/six.c:499
six_lock_ip_waiter+0x117/0x160 fs/bcachefs/six.c:556
__btree_node_lock_nopath fs/bcachefs/btree_locking.h:225 [inline]
btree_node_lock_nopath+0xa4/0x150 fs/bcachefs/btree_locking.h:241
btree_node_lock fs/bcachefs/btree_locking.h:289 [inline]
btree_path_lock_root fs/bcachefs/btree_iter.c:748 [inline]
bch2_btree_path_traverse_one+0xc39/0x2940 fs/bcachefs/btree_iter.c:1183
bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline]
bch2_btree_iter_traverse+0x699/0xc30 fs/bcachefs/btree_iter.c:1880
btree_key_cache_flush_pos fs/bcachefs/btree_key_cache.c:427 [inline]
bch2_btree_key_cache_journal_flush+0x8e1/0xe70 fs/bcachefs/btree_key_cache.c:512
journal_flush_pins+0x5f7/0xb20 fs/bcachefs/journal_reclaim.c:565
__bch2_journal_reclaim+0x789/0xda0 fs/bcachefs/journal_reclaim.c:698
bch2_journal_reclaim_thread+0x174/0x560 fs/bcachefs/journal_reclaim.c:740
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
</TASK>
Showing all locks held in the system:
1 lock held by pool_workqueue_/3:
4 locks held by kworker/1:0H/26:
#0: ffff88807f69c948 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88807f69c948 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000a0fd00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000a0fd00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#2: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#2: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#3: ffff88804af60128 (bcachefs_btree){+.+.}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#3: ffff88804af60128 (bcachefs_btree){+.+.}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#3: ffff88804af60128 (bcachefs_btree){+.+.}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
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
5 locks held by kworker/u8:2/35:
#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: ffffc90000ab7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000ab7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fc94350 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x16a/0xd50 net/core/net_namespace.c:602
#3: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0xe9/0xaa0 net/core/dev.c:12059
#4: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#4: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
4 locks held by kworker/0:1H/39:
#0: ffff88807f69c948 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88807f69c948 ((wq_completion)bcachefs_btree_io){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000af7d00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000af7d00 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#2: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#2: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#3: ffff88804af64128 (bcachefs_btree){+.+.}-{0:0}, at: trans_set_locked fs/bcachefs/btree_locking.h:194 [inline]
#3: ffff88804af64128 (bcachefs_btree){+.+.}-{0:0}, at: bch2_trans_begin+0x9b0/0x1bf0 fs/bcachefs/btree_iter.c:3125
3 locks held by kworker/u8:8/3544:
#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: ffffc9000c5b7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000c5b7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281
2 locks held by dhcpcd/5488:
#0: ffff8880629bf6c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2396
#1: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x99/0x200 net/core/rtnetlink.c:6790
2 locks held by getty/5570:
#0: ffff8880315310a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fee2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
4 locks held by kworker/u9:4/5822:
#0: ffff88807e55f948 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88807e55f948 ((wq_completion)bcachefs){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90003f3fd00 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90003f3fd00 ((work_completion)(&wp->index_update_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff88805ef14128 (bcachefs_btree){+.+.}-{0:0}, at: trans_set_locked fs/bcachefs/btree_locking.h:194 [inline]
#2: ffff88805ef14128 (bcachefs_btree){+.+.}-{0:0}, at: bch2_btree_path_traverse_all fs/bcachefs/btree_iter.c:1003 [inline]
#2: ffff88805ef14128 (bcachefs_btree){+.+.}-{0:0}, at: bch2_trans_begin+0xde0/0x1bf0 fs/bcachefs/btree_iter.c:3128
#3: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#3: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#3: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0x9a/0x1a0 fs/bcachefs/btree_iter.c:3053
3 locks held by kworker/u8:10/12926:
#0: ffff888143ef3148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888143ef3148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc900046cfd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900046cfd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff88805a5aa0e0 (&type->s_umount_key#60){++++}-{4:4}, at: super_trylock_shared+0x22/0xf0 fs/super.c:562
1 lock held by syz.1.1005/15822:
#0: ffff88805a5aa420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff88805a5aa420 (sb_writers#15){.+.+}-{0:0}, at: vfs_writev+0x2d1/0xba0 fs/read_write.c:1048
1 lock held by syz.1.1005/15864:
#0: ffff88805a5aa420 (sb_writers#15){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff88805a5aa420 (sb_writers#15){.+.+}-{0:0}, at: vfs_writev+0x2d1/0xba0 fs/read_write.c:1048
3 locks held by syz.1.1005/15872:
#0: ffff88802dd489b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x254/0x320 fs/file.c:1191
#1: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#1: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#1: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#2: ffff88806dcb8128 (bcachefs_btree){+.+.}-{0:0}, at: trans_set_locked fs/bcachefs/btree_locking.h:194 [inline]
#2: ffff88806dcb8128 (bcachefs_btree){+.+.}-{0:0}, at: bch2_trans_begin+0x9b0/0x1bf0 fs/bcachefs/btree_iter.c:3125
4 locks held by bch-reclaim/loo/15848:
#0: ffff88804124b0a8 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x167/0x560 fs/bcachefs/journal_reclaim.c:739
#1: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#1: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#1: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#2: ffff88804af68128 (bcachefs_btree){+.+.}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#2: ffff88804af68128 (bcachefs_btree){+.+.}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#2: ffff88804af68128 (bcachefs_btree){+.+.}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#3: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#3: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#3: ffff888041204398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_btree_key_cache_journal_flush+0x128/0xe70 fs/bcachefs/btree_key_cache.c:492
1 lock held by syz-executor/16689:
#0: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
2 locks held by syz-executor/18709:
#0: ffffffff8f44a020 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8f44a020 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8f44a020 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:555
#1: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#1: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xce2/0x2210 net/core/rtnetlink.c:4011
1 lock held by syz.1.1304/18766:
#0: ffff88805a5aa0e0 (&type->s_umount_key#60){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88805a5aa0e0 (&type->s_umount_key#60){++++}-{4:4}, at: super_lock+0x196/0x400 fs/super.c:120
1 lock held by syz.3.1307/18834:
#0: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
1 lock held by syz.0.1310/18852:
#0: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fca0808 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__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
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 275 Comm: kworker/u8:5 Not tainted 6.13.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound kfree_rcu_work
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:406 [inline]
RIP: 0010:unwind_next_frame+0xcb1/0x22d0 arch/x86/kernel/unwind_orc.c:585
Code: 0c 00 00 4c 39 f0 0f 87 74 0c 00 00 4c 89 ef e8 a5 22 00 00 49 89 c6 48 bd 00 00 00 00 00 fc ff df 48 8b 44 24 30 80 3c 28 00 <48> 8b 5c 24 18 74 08 48 89 df e8 00 9c b7 00 4c 89 33 48 8b 44 24
RSP: 0018:ffffc90002fc74d0 EFLAGS: 00000246
RAX: 1ffff920005f8ebd RBX: ffffc90002fc75b0 RCX: 1ffff920005f8eb4
RDX: ffffffff90a5a8ac RSI: 0000000000000002 RDI: ffffc90002fc7718
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffc90002fc7690
R10: ffffc90002fc75f0 R11: ffffffff818b3980 R12: ffffc90002fc8000
R13: ffffc90002fc7718 R14: ffffffff8203161f R15: 1ffff920005f8eb6
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6bc6fb9000 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free_freelist_hook mm/slub.c:2382 [inline]
slab_free_bulk mm/slub.c:4637 [inline]
kmem_cache_free_bulk+0x2d8/0x530 mm/slub.c:5001
kfree_bulk include/linux/slab.h:790 [inline]
kvfree_rcu_bulk+0x24b/0x4e0 kernel/rcu/tree.c:3385
kfree_rcu_work+0x44b/0x500 kernel/rcu/tree.c:3464
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
</TASK>