INFO: task syz-executor.1:10086 blocked for more than 144 seconds.
Not tainted 6.2.0-syzkaller-10801-g595fa4e313fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27944 pid:10086 ppid:5106 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common+0x7df/0xf30 kernel/locking/rwsem.c:1250
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
handle_page_fault arch/x86/mm/fault.c:1498 [inline]
exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f241de276f6
RSP: 002b:00007fffcd72e3a8 EFLAGS: 00010287
RAX: 0000001b31e3d000 RBX: 00007f241dfac018 RCX: 0000001b31e20000
RDX: 0000001b31e3d004 RSI: 0000001b31e3c210 RDI: 00000000e18840e6
RBP: 00000000e18840e6 R08: 0000001b32420000 R09: 00000000e18840ea
R10: 00007fffcd7ce090 R11: 000000000003d182 R12: 00007f241dfa0000
R13: 0000000000000001 R14: 0000000000000c27 R15: ffffffff8152260f
INFO: task syz-executor.1:10087 blocked for more than 144 seconds.
Not tainted 6.2.0-syzkaller-10801-g595fa4e313fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26288 pid:10087 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
io_schedule+0xbe/0x130 kernel/sched/core.c:8884
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
folio_lock include/linux/pagemap.h:952 [inline]
write_cache_pages+0x5e5/0xe70 mm/page-writeback.c:2440
mpage_writepages+0xc6/0x170 fs/mpage.c:653
udf_writepages+0x86/0xe0 fs/udf/inode.c:211
do_writepages+0x1a8/0x640 mm/page-writeback.c:2551
filemap_fdatawrite_wbc mm/filemap.c:390 [inline]
filemap_fdatawrite_wbc+0x147/0x1b0 mm/filemap.c:380
__filemap_fdatawrite_range+0xb8/0xf0 mm/filemap.c:423
file_write_and_wait_range+0xce/0x140 mm/filemap.c:781
__generic_file_fsync+0x78/0x1f0 fs/libfs.c:1132
generic_file_fsync+0x77/0x120 fs/libfs.c:1173
vfs_fsync_range+0x13e/0x230 fs/sync.c:188
generic_write_sync include/linux/fs.h:2452 [inline]
udf_file_write_iter+0x363/0x740 fs/udf/file.c:126
call_write_iter include/linux/fs.h:1851 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9ed/0xe10 fs/read_write.c:584
ksys_write+0x12b/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f241de8c0f9
RSP: 002b:00007f241ecd6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f241dfabf80 RCX: 00007f241de8c0f9
RDX: 000000000208e24b RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007f241dee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffcd72e3df R14: 00007f241ecd6300 R15: 0000000000022000
INFO: task syz-executor.1:10105 blocked for more than 145 seconds.
Not tainted 6.2.0-syzkaller-10801-g595fa4e313fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26312 pid:10105 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common+0x7df/0xf30 kernel/locking/rwsem.c:1250
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
handle_page_fault arch/x86/mm/fault.c:1498 [inline]
exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:fault_in_readable+0x179/0x290 mm/gup.c:1863
Code: 73 c5 ff 49 39 dd 0f 84 06 01 00 00 45 31 f6 eb 11 e8 5b 73 c5 ff 48 81 c3 00 10 00 00 4c 39 eb 74 1d e8 4a 73 c5 ff 45 89 f7 <8a> 03 31 ff 44 89 fe 88 44 24 28 e8 87 6f c5 ff 45 85 ff 74 d2 e8
RSP: 0018:ffffc90004cb7b08 EFLAGS: 00050212
RAX: 00000000000259b6 RBX: 000000002003a000 RCX: ffffc9000b721000
RDX: 0000000000040000 RSI: ffffffff81be7496 RDI: 0000000000000005
RBP: 00000000200392c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000001000
R13: 000000002003b000 R14: 0000000000000000 R15: 0000000000000000
fault_in_iov_iter_readable+0x252/0x2c0 lib/iov_iter.c:350
generic_perform_write+0x1ae/0x570 mm/filemap.c:3916
__generic_file_write_iter+0x2ae/0x500 mm/filemap.c:4054
udf_file_write_iter+0x233/0x740 fs/udf/file.c:115
call_write_iter include/linux/fs.h:1851 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9ed/0xe10 fs/read_write.c:584
ksys_write+0x12b/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f241de8c0f9
RSP: 002b:00007f241ecb5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f241dfac050 RCX: 00007f241de8c0f9
RDX: 000000000208e24b RSI: 00000000200002c0 RDI: 0000000000000005
RBP: 00007f241dee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffcd72e3df R14: 00007f241ecb5300 R15: 0000000000022000
INFO: task syz-executor.1:10107 blocked for more than 145 seconds.
Not tainted 6.2.0-syzkaller-10801-g595fa4e313fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28464 pid:10107 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
rwsem_down_write_slowpath+0x3e2/0x1220 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d2/0x200 kernel/locking/rwsem.c:1574
inode_lock include/linux/fs.h:758 [inline]
do_truncate+0x131/0x200 fs/open.c:64
do_sys_ftruncate+0x53a/0x770 fs/open.c:194
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f241de8c0f9
RSP: 002b:00007f241ec94168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f241dfac120 RCX: 00007f241de8c0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f241dee7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffcd72e3df R14: 00007f241ec94300 R15: 0000000000022000
INFO: task syz-executor.1:10109 blocked for more than 145 seconds.
Not tainted 6.2.0-syzkaller-10801-g595fa4e313fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27512 pid:10109 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xcce/0x5b20 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
io_schedule+0xbe/0x130 kernel/sched/core.c:8884
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
folio_wait_writeback+0x47/0x3b0 mm/page-writeback.c:3127
migrate_folio_unmap mm/migrate.c:1192 [inline]
migrate_pages_batch+0x1281/0x3660 mm/migrate.c:1685
migrate_pages+0x1b73/0x2300 mm/migrate.c:1973
do_mbind mm/mempolicy.c:1338 [inline]
kernel_mbind+0x4df/0x7c0 mm/mempolicy.c:1485
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f241de8c0f9
RSP: 002b:00007f241ec73168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f241dfac1f0 RCX: 00007f241de8c0f9
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000
RBP: 00007f241dee7ae9 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffcd72e3df R14: 00007f241ec73300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff8c793870 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/12:
#0: ffffffff8c793570 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/27:
#0: ffffffff8c7943c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
2 locks held by getty/4747:
#0: ffff88814b131098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900020482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:4/8851:
#0: ffff888144f8c138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888144f8c138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888144f8c138 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888144f8c138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff888144f8c138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff888144f8c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361
#1: ffffc90000d8fda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365
#2: ffff8880790ba0e0 (&type->s_umount_key#83){++++}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414
1 lock held by syz-executor.1/10086:
#0: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
2 locks held by syz-executor.1/10087:
#0: ffff88802bd2a3e8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046
#1: ffff8880790ba460 (sb_writers#21){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637
4 locks held by syz-executor.1/10105:
#0: ffff88807a8445e8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046
#1: ffff8880790ba460 (sb_writers#21){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637
#2: ffff888073ec83e8 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff888073ec83e8 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: udf_file_write_iter+0x6d/0x740 fs/udf/file.c:99
#3: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#3: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
2 locks held by syz-executor.1/10107:
#0: ffff8880790ba460 (sb_writers#21){.+.+}-{0:0}, at: do_syscall_x64 arch/x86/entry/common.c:50 [inline]
#0: ffff8880790ba460 (sb_writers#21){.+.+}-{0:0}, at: do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
#1: ffff888073ec83e8 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888073ec83e8 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: do_truncate+0x131/0x200 fs/open.c:64
1 lock held by syz-executor.1/10109:
#0: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:71 [inline]
#0: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: do_mbind mm/mempolicy.c:1312 [inline]
#0: ffff8880817b7718 (&mm->mmap_lock){++++}-{3:3}, at: kernel_mbind+0x318/0x7c0 mm/mempolicy.c:1485
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.2.0-syzkaller-10801-g595fa4e313fe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x316/0x3e0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x33f/0x460 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe94/0x11e0 kernel/hung_task.c:379
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
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:48 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:112