INFO: task syz-executor.2:6145 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23000 pid:6145 tgid:6144 ppid:5097 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
btrfs_commit_transaction+0x9bc/0x3740 fs/btrfs/transaction.c:2362
flush_space+0x9ae/0xcf0 fs/btrfs/space-info.c:818
priority_reclaim_metadata_space+0xe7/0x5a0 fs/btrfs/space-info.c:1412
__reserve_bytes+0xb74/0x18a0 fs/btrfs/space-info.c:1757
btrfs_reserve_metadata_bytes+0x2e/0x110 fs/btrfs/space-info.c:1783
btrfs_block_rsv_refill+0xd8/0x1a0 fs/btrfs/block-rsv.c:265
evict_refill_and_join+0xcf/0x210 fs/btrfs/inode.c:5169
btrfs_evict_inode+0xa15/0x1010 fs/btrfs/inode.c:5263
evict+0x2a4/0x630 fs/inode.c:666
do_unlinkat+0x512/0x830 fs/namei.c:4389
__do_sys_unlink fs/namei.c:4430 [inline]
__se_sys_unlink fs/namei.c:4428 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4428
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc17547cce9
RSP: 002b:00007fc1762380c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007fc17559bf80 RCX: 00007fc17547cce9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007fc1754c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc17559bf80 R15: 00007ffddca0d2a8
INFO: task syz-executor.2:6191 blocked for more than 144 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23216 pid:6191 tgid:6144 ppid:5097 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
__wait_on_freeing_inode fs/inode.c:2281 [inline]
find_inode+0x2fe/0x430 fs/inode.c:907
ilookup5_nowait fs/inode.c:1458 [inline]
ilookup5+0xa1/0x200 fs/inode.c:1487
iget5_locked+0x37/0x270 fs/inode.c:1268
btrfs_iget_locked fs/btrfs/inode.c:5535 [inline]
btrfs_iget_path+0x147/0x1540 fs/btrfs/inode.c:5552
add_conflicting_inode fs/btrfs/tree-log.c:5584 [inline]
copy_inode_items_to_log fs/btrfs/tree-log.c:5855 [inline]
btrfs_log_inode+0x1ae5/0x43f0 fs/btrfs/tree-log.c:6519
btrfs_log_inode_parent+0xab0/0x1100 fs/btrfs/tree-log.c:7006
btrfs_log_new_name+0x55d/0x970 fs/btrfs/tree-log.c:7511
btrfs_rename fs/btrfs/inode.c:9141 [inline]
btrfs_rename2+0x245f/0x2d90 fs/btrfs/inode.c:9185
vfs_rename+0xaba/0xde0 fs/namei.c:4844
do_renameat2+0xd5a/0x1390 fs/namei.c:4996
__do_sys_rename fs/namei.c:5042 [inline]
__se_sys_rename fs/namei.c:5040 [inline]
__x64_sys_rename+0x86/0x90 fs/namei.c:5040
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc17547cce9
RSP: 002b:00007fc1762170c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fc17559c050 RCX: 00007fc17547cce9
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080
RBP: 00007fc1754c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc17559c050 R15: 00007ffddca0d2a8
INFO: task syz-executor.2:6192 blocked for more than 146 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26192 pid:6192 tgid:6144 ppid:5097 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock include/linux/fs.h:802 [inline]
btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:378
btrfs_buffered_write+0x230/0x1380 fs/btrfs/file.c:1204
btrfs_do_write_iter+0x2bb/0x1190 fs/btrfs/file.c:1687
do_iter_readv_writev+0x330/0x4a0
do_iter_write+0x1f6/0x8d0 fs/read_write.c:860
iter_file_splice_write+0x86d/0x1010 fs/splice.c:736
do_splice_from fs/splice.c:933 [inline]
direct_splice_actor+0xea/0x1c0 fs/splice.c:1142
splice_direct_to_actor+0x376/0x9e0 fs/splice.c:1088
do_splice_direct+0x2ac/0x3f0 fs/splice.c:1194
do_sendfile+0x62c/0x1000 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1322 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc17547cce9
RSP: 002b:00007fc1761f60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc17559c120 RCX: 00007fc17547cce9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 00007fc1754c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000100800001 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc17559c120 R15: 00007ffddca0d2a8
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
#0: ffff8880b983c358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#1: ffff8880b9828808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
#2: ffff8880b9843f58 (&ACCESS_PRIVATE(sdp, lock)){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline]
#2: ffff8880b9843f58 (&ACCESS_PRIVATE(sdp, lock)){....}-{2:2}, at: srcu_invoke_callbacks+0x356/0x490 kernel/rcu/srcutree.c:1751
1 lock held by khungtaskd/29:
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
4 locks held by kworker/u4:3/48:
2 locks held by kworker/1:2/55:
#0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
#1: ffffc9000130fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#1: ffffc9000130fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
2 locks held by getty/4819:
#0: ffff88802acb20a0 (&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+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.0/5090:
#0: ffffffff8d9334b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8d9334b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:996
1 lock held by syz-executor.4/5095:
2 locks held by syz-executor.2/6145:
#0: ffff8880810a4418 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:404
#1: ffff888056d02390 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x401/0xcf0 fs/btrfs/transaction.c:292
7 locks held by syz-executor.2/6191:
#0: ffff8880810a4418 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:404
#1: ffff88823bc5c588 (&type->i_mutex_dir_key#12/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:837 [inline]
#1: ffff88823bc5c588 (&type->i_mutex_dir_key#12/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3046 [inline]
#1: ffff88823bc5c588 (&type->i_mutex_dir_key#12/1){+.+.}-{3:3}, at: do_renameat2+0x601/0x1390 fs/namei.c:4935
#2: ffff888081d94680 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock_nested include/linux/fs.h:837 [inline]
#2: ffff888081d94680 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: lock_two_inodes+0x100/0x180 fs/inode.c:1129
#3: ffff8880810a4608 (sb_internal
#4){.+.+}-{0:0}, at: btrfs_rename fs/btrfs/inode.c:9059 [inline]
#4){.+.+}-{0:0}, at: btrfs_rename2+0x17fc/0x2d90 fs/btrfs/inode.c:9185
#4: ffff888056d02390 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x401/0xcf0 fs/btrfs/transaction.c:292
#5: ffff888056d023b8 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transaction+0x401/0xcf0 fs/btrfs/transaction.c:292
#6: ffff888081d942e0 (&ei->log_mutex){+.+.}-{3:3}, at: btrfs_log_inode+0x4c4/0x43f0 fs/btrfs/tree-log.c:6408
2 locks held by syz-executor.2/6192:
#0: ffff8880810a4418 (sb_writers#20){.+.+}-{0:0}, at: do_sendfile+0x607/0x1000 fs/read_write.c:1253
#1: ffff888081d94680 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff888081d94680 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:378
1 lock held by btrfs-transacti/6190:
#0: ffff888056d007d8 (&fs_info->transaction_kthread_mutex){+.+.}-{3:3}, at: transaction_kthread+0x100/0x500 fs/btrfs/disk-io.c:1546
1 lock held by kworker/u4:8/6831:
#0: ffff8880b993c358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
6 locks held by syz-executor.1/8200:
2 locks held by syz-executor.1/8201:
#0: ffff88802185e418 (sb_writers#19){.+.+}-{0:0}, at: do_sendfile+0x607/0x1000 fs/read_write.c:1253
#1: ffff8880b993c358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
3 locks held by syz-executor.1/8209:
2 locks held by syz-executor.2/8206:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8209 Comm: syz-executor.1 Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__sanitizer_cov_trace_switch+0xa/0x110 kernel/kcov.c:320
Code: c2 4c 89 12 48 c7 44 11 08 07 00 00 00 48 89 7c 11 10 48 89 74 11 18 4c 89 44 11 20 c3 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 54 <53> 4c 8b 16 48 8b 46 08 48 83 c0 f8 48 c1 c0 3d 48 83 f8 02 7f 1f
RSP: 0018:ffffc9000347e5a8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff88801f7bd940
RDX: ffffffff8f8bfb18 RSI: ffffffff8d79dcd0 RDI: 0000000000000002
RBP: ffffffff8f8bfb1d R08: 0000000000000005 R09: ffffffff813dc5e3
R10: 0000000000000008 R11: ffff88801f7bd940 R12: ffffffff8f8bfb1c
R13: dffffc0000000000 R14: ffffc9000347e6f0 R15: 1ffff9200068fcd4
FS: 00007fd1f3b556c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003e3c0 CR3: 0000000025a6b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xff7/0x29e0 arch/x86/kernel/unwind_orc.c:581
arch_stack_walk+0x146/0x1a0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
__kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x6c/0x3c0 mm/slab.h:763
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x19e/0x2b0 mm/slub.c:3502
nilfs_btree_alloc_path fs/nilfs2/btree.c:28 [inline]
nilfs_btree_lookup_contig+0x157/0xfa0 fs/nilfs2/btree.c:715
nilfs_bmap_lookup_contig+0x8b/0x160 fs/nilfs2/bmap.c:100
nilfs_get_block+0x245/0x8e0 fs/nilfs2/inode.c:85
do_mpage_readpage+0x90c/0x1f60 fs/mpage.c:233
mpage_readahead+0x44f/0x930 fs/mpage.c:381
read_pages+0x183/0x830 mm/readahead.c:160
page_cache_ra_unbounded+0x68e/0x7c0 mm/readahead.c:269
do_async_mmap_readahead mm/filemap.c:3178 [inline]
filemap_fault+0x74a/0x1670 mm/filemap.c:3232
__do_fault+0x133/0x4e0 mm/memory.c:4266
do_read_fault mm/memory.c:4629 [inline]
do_fault mm/memory.c:4763 [inline]
do_pte_missing mm/memory.c:3731 [inline]
handle_pte_fault mm/memory.c:5039 [inline]
__handle_mm_fault mm/memory.c:5180 [inline]
handle_mm_fault+0x4c9b/0x6680 mm/memory.c:5345
faultin_page mm/gup.c:956 [inline]
__get_user_pages+0x6bd/0x15f0 mm/gup.c:1239
populate_vma_page_range+0x2aa/0x370 mm/gup.c:1677
__mm_populate+0x279/0x450 mm/gup.c:1786
mm_populate include/linux/mm.h:3379 [inline]
vm_mmap_pgoff+0x304/0x420 mm/util.c:561
ksys_mmap_pgoff+0x4ff/0x6d0 mm/mmap.c:1425
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fd1f2e7cce9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd1f3b550c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fd1f2f9c050 RCX: 00007fd1f2e7cce9
RDX: 00000000027fffff RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fd1f2ec947a R08: 0000000000000004 R09: 0000000000000000
R10: 0000000004002011 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fd1f2f9c050 R15: 00007ffef3579e48