INFO: task kworker/1:2:1668 blocked for more than 143 seconds.
Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:23416 pid:1668 tgid:1668 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:2630 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784
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.3:2005 blocked for more than 143 seconds.
Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:22424 pid:2005 tgid:2004 ppid:5110 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_get_block+0x280/0x5130 fs/reiserfs/inode.c:680
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_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7c6/0x1670 mm/filemap.c:3233
__do_fault+0x133/0x4e0 mm/memory.c:4265
do_read_fault mm/memory.c:4628 [inline]
do_fault mm/memory.c:4762 [inline]
do_pte_missing mm/memory.c:3730 [inline]
handle_pte_fault mm/memory.c:5038 [inline]
__handle_mm_fault mm/memory.c:5179 [inline]
handle_mm_fault+0x4c9b/0x6680 mm/memory.c:5344
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:551
ksys_mmap_pgoff+0x4ff/0x6d0 mm/mmap.c:1425
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fb67b27cae9
RSP: 002b:00007fb67bf6f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fb67b39bf80 RCX: 00007fb67b27cae9
RDX: 8088e3ad122bc192 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007fb67b2c847a R08: 0000000000000004 R09: 0000000000000000
R10: 0000000004002011 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb67b39bf80 R15: 00007fff764dd018
INFO: task syz-executor.3:2030 blocked for more than 144 seconds.
Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26552 pid:2030 tgid:2004 ppid:5110 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
io_schedule+0x8c/0x100 kernel/sched/core.c:8998
folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1273
__filemap_get_folio+0xa3/0xbb0 mm/filemap.c:1864
pagecache_get_page+0x2c/0x1f0 mm/folio-compat.c:99
find_or_create_page include/linux/pagemap.h:723 [inline]
grab_cache_page include/linux/pagemap.h:839 [inline]
grab_tail_page fs/reiserfs/inode.c:2193 [inline]
reiserfs_truncate_file+0x21b/0x820 fs/reiserfs/inode.c:2261
reiserfs_setattr+0xbc9/0x1140 fs/reiserfs/inode.c:3388
notify_change+0xb99/0xe60 fs/attr.c:499
do_truncate+0x220/0x300 fs/open.c:66
do_sys_ftruncate+0x2f3/0x390 fs/open.c:194
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fb67b27cae9
RSP: 002b:00007fb67bf4e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fb67b39c050 RCX: 00007fb67b27cae9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 00007fb67b2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb67b39c050 R15: 00007fff764dd018
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
4 locks held by kworker/1:2/1668:
#0: ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#1: ffffc90004e77d20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc90004e77d20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703
#2: ffff888072fea0e0 (&type->s_umount_key#25){++++}-{3:3}, at: flush_old_commits+0xcb/0x2f0 fs/reiserfs/super.c:97
#3: ffff8880230ee090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
2 locks held by getty/4823:
#0: ffff8880265860a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.1/5101:
#0: ffff88801f9220e0 (&type->s_umount_key#52){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88801f9220e0 (&type->s_umount_key#52){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88801f9220e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:516
3 locks held by kworker/u4:5/31686:
2 locks held by syz-executor.3/2005:
#0: ffff88803c4ad400 (mapping.invalidate_lock#19){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline]
#0: ffff88803c4ad400 (mapping.invalidate_lock#19){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:225
#1: ffff8880230ee090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
4 locks held by syz-executor.3/2030:
#0: ffff888072fea418 (sb_writers#24){.+.+}-{0:0}, at: do_sys_ftruncate+0x258/0x390 fs/open.c:191
#1: ffff88803c4ad260 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88803c4ad260 (&sb->s_type->i_mutex_key#31){+.+.}-{3:3}, at: do_truncate+0x20c/0x300 fs/open.c:64
#2: ffff88803c4ad038 (&ei->tailpack){+.+.}-{3:3}, at: reiserfs_setattr+0xb98/0x1140 fs/reiserfs/inode.c:3386
#3: ffff8880230ee090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
2 locks held by dhcpcd/4378:
#0: ffff888037e63810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#0: ffff888037e63810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline]
#0: ffff888037e63810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: sock_close+0x90/0x230 net/socket.c:1419
#1: ffffffff8d932a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8d932a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:996
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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: 4363 Comm: syz-executor.2 Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0033:0x7f7ae5c38775
Code: 35 b0 78 15 00 48 89 fb 48 89 74 24 10 48 89 54 24 18 eb 20 90 4c 89 ff e8 b8 09 ff ff 41 08 c5 0f 85 ff 01 00 00 41 83 c4 01 <44> 3b 63 04 0f 83 c9 00 00 00 48 8b 34 24 44 89 e1 48 8b 53 28 4c
RSP: 002b:00007fff0641bd90 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 00007f7ae5d9c018 RCX: 0000000000000000
RDX: 0000000081f9007e RSI: 0000000080000000 RDI: ffffffff813dc8e2
RBP: 00000000813dcb9f R08: 0000001b31f20000 R09: 0000000000001f61
R10: 000000008179df65 R11: 0000000000000246 R12: 00000000000185a6
R13: 0000000000000000 R14: 00007f7ae5d90000 R15: ffffffff813dc8e2
FS: 000055555603f480 GS: 0000000000000000