INFO: task kworker/0:5:5158 blocked for more than 143 seconds.
Not tainted 6.7.0-rc5-syzkaller-00134-g3f7168591ebf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:21912 pid:5158 tgid:5158 ppid:2 flags:0x00004000
Workqueue: events_long flush_old_commits
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
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
reiserfs_sync_fs fs/reiserfs/super.c:76 [inline]
flush_old_commits+0x1e3/0x2f0 fs/reiserfs/super.c:111
process_one_work kernel/workqueue.c:2627 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
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
INFO: task syz-executor.5:6703 blocked for more than 144 seconds.
Not tainted 6.7.0-rc5-syzkaller-00134-g3f7168591ebf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23960 pid:6703 tgid:6701 ppid:5101 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
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
reiserfs_write_lock_nested+0x5f/0xd0 fs/reiserfs/lock.c:78
let_transaction_grow fs/reiserfs/journal.c:3004 [inline]
__commit_trans_jl fs/reiserfs/journal.c:3860 [inline]
reiserfs_commit_for_inode+0x39b/0x9e0 fs/reiserfs/journal.c:3921
reiserfs_sync_file+0x124/0x270 fs/reiserfs/file.c:159
generic_write_sync include/linux/fs.h:2653 [inline]
generic_file_write_iter+0x2a1/0x310 mm/filemap.c:4043
call_write_iter include/linux/fs.h:2020 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x792/0xb20 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
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: 0033:0x7f8df787cba9
RSP: 002b:00007f8df86430c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8df799bf80 RCX: 00007f8df787cba9
RDX: 0000000000000012 RSI: 00000000200001c0 RDI: 0000000000000006
RBP: 00007f8df78c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8df799bf80 R15: 00007ffd3b8662e8
INFO: task syz-executor.5:6728 blocked for more than 145 seconds.
Not tainted 6.7.0-rc5-syzkaller-00134-g3f7168591ebf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28912 pid:6728 tgid:6701 ppid:5101 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
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747
reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
reiserfs_ioctl+0x74/0x2f0 fs/reiserfs/ioctl.c:81
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857
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: 0033:0x7f8df787cba9
RSP: 002b:00007f8df86010c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8df799c120 RCX: 00007f8df787cba9
RDX: 00000000200000c0 RSI: 00000000c0189377 RDI: 0000000000000007
RBP: 00007f8df78c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8df799c120 R15: 00007ffd3b8662e8
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8d92e060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92e060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92e060 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
1 lock held by udevd/4515:
#0: ffff8880b983c358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
2 locks held by getty/4825:
#0: ffff88802a99a0a0 (&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
4 locks held by kworker/0:5/5158:
#0:
ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
#1: ffffc90003c5fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#1: ffffc90003c5fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
#2: ffff888072e500e0 (&type->s_umount_key#25){++++}-{3:3}, at: flush_old_commits+0xcb/0x2f0 fs/reiserfs/super.c:97
#3: ffff8880278ad090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
4 locks held by syz-executor.5/6703:
#0: ffff88807c36a5c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2b0/0x340 fs/file.c:1177
#1: ffff888072e50418 (sb_writers#14){.+.+}-{0:0}, at: vfs_write+0x223/0xb20 fs/read_write.c:580
#2: ffff8880335a4bc0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff8880335a4bc0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: reiserfs_sync_file+0x98/0x270 fs/reiserfs/file.c:155
#3: ffff8880278ad090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock_nested+0x5f/0xd0 fs/reiserfs/lock.c:78
4 locks held by syz-executor.5/6727:
1 lock held by syz-executor.5/6728:
#0: ffff8880278ad090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
9 locks held by kworker/u4:28/7434:
3 locks held by syz-executor.4/8690:
#0: ffff88801ff41ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:663 [inline]
#0: ffff88801ff41ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f6/0x6f0 mm/memory.c:5501
#1: ffff8880350ea510 (sb_pagefaults#3){.+.+}-{0:0}, at: do_page_mkwrite+0x197/0x470 mm/memory.c:2944
#2: ffff8880335216a0 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x49c/0xd10 fs/btrfs/inode.c:8147
8 locks held by syz-executor.4/8695:
#0: ffff8880350ea418 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:448
#1: ffff888038274758 (&root->delalloc_mutex){+.+.}-{3:3}, at: start_delalloc_inodes+0x1a8/0xc60 fs/btrfs/inode.c:9249
#2: ffff888030a58be8 (&fs_info->subvol_sem){++++}-{3:3}, at: btrfs_mksubvol+0x52a/0x750 fs/btrfs/ioctl.c:989
#3: ffff8880350ea608 (sb_internal#3){.+.+}-{0:0}, at: create_snapshot+0x437/0x7e0 fs/btrfs/ioctl.c:837
#4: ffff888030a5a458 (btrfs_trans_completed){++++}-{0:0}, at: btrfs_commit_transaction+0x17b/0x3740 fs/btrfs/transaction.c:2212
#5: ffff888030a5a430 (btrfs_trans_super_committed){.+.+}-{0:0}, at: btrfs_commit_transaction+0x17b/0x3740 fs/btrfs/transaction.c:2212
#6: ffff8880b9929718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
#7: ffffffff92795fb8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x163/0x530 lib/debugobjects.c:717
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.7.0-rc5-syzkaller-00134-g3f7168591ebf #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: 5097 Comm: syz-executor.2 Not tainted 6.7.0-rc5-syzkaller-00134-g3f7168591ebf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__read_once_word_nocheck+0x1/0x10 include/asm-generic/rwonce.h:66
Code: e9 cd fd ff ff 89 d9 80 e1 07 38 c1 0f 8c 9b fc ff ff 48 89 df e8 ff 9f ac 00 e9 8e fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 53 <48> 89 fb e8 17 98 50 00 48 8b 03 5b c3 66 90 66 0f 1f 00 e8 07 98
RSP: 0018:ffffc90003b4f6f0 EFLAGS: 00000293
RAX: ffffffff813ddc05 RBX: ffffc90003b4f8a0 RCX: ffff88801dbc0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc90003b4f930
RBP: ffffc90003b4f930 R08: ffffffff813ddbdb R09: ffffffff813dc790
R10: 0000000000000003 R11: ffff88801dbc0000 R12: 1ffff92000769f15
R13: 1ffff92000769f16 R14: 1ffff92000769f14 R15: ffffc90003b50000
FS: 0000555556841480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0fe6d76198 CR3: 0000000043555000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
deref_stack_reg+0x1c7/0x250 arch/x86/kernel/unwind_orc.c:406
unwind_next_frame+0x1ab9/0x29e0 arch/x86/kernel/unwind_orc.c:648
__unwind_start+0x641/0x7a0 arch/x86/kernel/unwind_orc.c:760
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xfd/0x1a0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xad/0xc0 mm/kasan/generic.c:492
__call_rcu_common kernel/rcu/tree.c:2681 [inline]
call_rcu+0x167/0xa80 kernel/rcu/tree.c:2795
__dentry_kill+0x436/0x660 fs/dcache.c:607
dentry_kill+0xbb/0x290
dput+0x21e/0x470 fs/dcache.c:913
__fput+0x60b/0xa10 fs/file_table.c:402
__do_sys_close fs/open.c:1590 [inline]
__se_sys_close fs/open.c:1575 [inline]
__x64_sys_close+0x7e/0x100 fs/open.c:1575
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: 0033:0x7f0fe6c7ba9a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007ffc40b1d830 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0fe6c7ba9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffc40b1d8ac R08: 00007ffc40b1d18c R09: 00007ffc40b1d597
R10: 00007ffc40b1d210 R11: 0000000000000293 R12: 0000000000000032
R13: 00000000000615b3 R14: 000000000006159f R15: 0000000000000006