INFO: task kworker/1:2:2013 blocked for more than 143 seconds.
Not tainted 5.15.118-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:22048 pid: 2013 ppid: 2 flags:0x00004000
Workqueue: events_long flush_old_commits
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
reiserfs_sync_fs fs/reiserfs/super.c:76 [inline]
flush_old_commits+0x1df/0x2e0 fs/reiserfs/super.c:111
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2307
worker_thread+0xaca/0x1280 kernel/workqueue.c:2454
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task syz-executor.4:13200 blocked for more than 143 seconds.
Not tainted 5.15.118-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24512 pid:13200 ppid: 3562 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
reiserfs_get_block+0x27c/0x5390 fs/reiserfs/inode.c:688
do_mpage_readpage+0x6c8/0x1f70 fs/mpage.c:231
mpage_readahead+0x427/0x9b0 fs/mpage.c:389
read_pages+0x159/0x8e0 mm/readahead.c:130
page_cache_ra_unbounded+0x7b0/0x930 mm/readahead.c:239
do_sync_mmap_readahead+0x610/0x800 mm/filemap.c:2987
filemap_fault+0x77a/0x1470 mm/filemap.c:3080
__do_fault+0x139/0x340 mm/memory.c:3885
do_shared_fault mm/memory.c:4275 [inline]
do_fault mm/memory.c:4353 [inline]
handle_pte_fault mm/memory.c:4608 [inline]
__handle_mm_fault mm/memory.c:4743 [inline]
handle_mm_fault+0x275d/0x5950 mm/memory.c:4841
do_user_addr_fault arch/x86/mm/fault.c:1397 [inline]
handle_page_fault arch/x86/mm/fault.c:1485 [inline]
exc_page_fault+0x271/0x740 arch/x86/mm/fault.c:1541
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f9cb0adacdf
RSP: 002b:00007fffeec6b4a8 EFLAGS: 00010283
RAX: 0000000020000080 RBX: 0000000000000000 RCX: 00007f9cb0654000
RDX: 0000000000000012 RSI: 00007f9cb06556d8 RDI: 0000000020000080
RBP: 00007fffeec6b568 R08: 00007f9cb0a54000 R09: 00007f9cb0654000
R10: 00007f9cb06556c0 R11: 0000000000026fd2 R12: 00000000000caea9
R13: 00007fffeec6b590 R14: 00007fffeec6b5b0 R15: 0000000000000032
INFO: task syz-executor.4:13201 blocked for more than 144 seconds.
Not tainted 5.15.118-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:22944 pid:13201 ppid: 3562 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
io_schedule+0x88/0x100 kernel/sched/core.c:8472
wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356
__lock_page mm/filemap.c:1648 [inline]
lock_page include/linux/pagemap.h:625 [inline]
pagecache_get_page+0x5af/0x1010 mm/filemap.c:1910
find_or_create_page include/linux/pagemap.h:420 [inline]
grab_cache_page include/linux/pagemap.h:502 [inline]
grab_tail_page fs/reiserfs/inode.c:2209 [inline]
reiserfs_truncate_file+0x205/0xda0 fs/reiserfs/inode.c:2277
reiserfs_vfs_truncate_file+0x29/0x40 fs/reiserfs/file.c:133
reiserfs_direct_IO+0x1e0/0x200 fs/reiserfs/inode.c:3276
generic_file_direct_write+0x204/0x460 mm/filemap.c:3678
__generic_file_write_iter+0x2a2/0x4f0 mm/filemap.c:3860
generic_file_write_iter+0xa7/0x1b0 mm/filemap.c:3935
call_write_iter include/linux/fs.h:2103 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9cb0ae0389
RSP: 002b:00007f9caf052168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9cb0bfff80 RCX: 00007f9cb0ae0389
RDX: 0000000000000020 RSI: 0000000020000140 RDI: 0000000000000005
RBP: 00007f9cb0b2b493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffeec6b42f R14: 00007f9caf052300 R15: 0000000000022000
INFO: task syz-executor.4:13229 blocked for more than 144 seconds.
Not tainted 5.15.118-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28528 pid:13229 ppid: 3562 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
rwsem_down_write_slowpath+0xebb/0x15c0 kernel/locking/rwsem.c:1157
__down_write_common kernel/locking/rwsem.c:1284 [inline]
__down_write kernel/locking/rwsem.c:1293 [inline]
down_write+0x164/0x170 kernel/locking/rwsem.c:1542
inode_lock include/linux/fs.h:787 [inline]
generic_file_write_iter+0x7c/0x1b0 mm/filemap.c:3932
call_write_iter include/linux/fs.h:2103 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9cb0ae0389
RSP: 002b:00007f9ca7031168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9cb0c00050 RCX: 00007f9cb0ae0389
RDX: 0000000000000012 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f9cb0b2b493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffeec6b42f R14: 00007f9ca7031300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8c91c5e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/1:2/2013:
#0: ffff888011c65538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2280
#1: ffffc90005e67d20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2282
#2: ffff888065b8c0e0 (&type->s_umount_key#89){++++}-{3:3}, at: flush_old_commits+0xc7/0x2e0 fs/reiserfs/super.c:97
#3: ffff888096b15090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
2 locks held by getty/3259:
#0: ffff888024884098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900024a32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1da0 drivers/tty/n_tty.c:2147
2 locks held by syz-executor.4/13200:
#0: ffff88807ca391c0 (mapping.invalidate_lock#15){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
#0: ffff88807ca391c0 (mapping.invalidate_lock#15){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x1a6/0x930 mm/readahead.c:195
#1: ffff888096b15090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
5 locks held by syz-executor.4/13201:
#0: ffff888019e7d270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x261/0x300 fs/file.c:1073
#1: ffff888065b8c460 (sb_writers#32){.+.+}-{0:0}, at: vfs_write+0x29a/0xe50 fs/read_write.c:590
#2: ffff88807ca39020 (&sb->s_type->i_mutex_key#41){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#2: ffff88807ca39020 (&sb->s_type->i_mutex_key#41){+.+.}-{3:3}, at: generic_file_write_iter+0x7c/0x1b0 mm/filemap.c:3932
#3: ffff88807ca38df8 (&ei->tailpack){+.+.}-{3:3}, at: reiserfs_vfs_truncate_file+0x1c/0x40 fs/reiserfs/file.c:132
#4: ffff888096b15090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
3 locks held by syz-executor.4/13229:
#0: ffff888019e7d9f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x261/0x300 fs/file.c:1073
#1: ffff888065b8c460 (sb_writers#32){.+.+}-{0:0}, at: vfs_write+0x29a/0xe50 fs/read_write.c:590
#2: ffff88807ca39020 (&sb->s_type->i_mutex_key#41){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#2: ffff88807ca39020 (&sb->s_type->i_mutex_key#41){+.+.}-{3:3}, at: generic_file_write_iter+0x7c/0x1b0 mm/filemap.c:3932
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:570