INFO: task syz-executor.2:6948 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26776 pid:6948 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0x17d8/0x4990 kernel/sched/core.c:6622
schedule+0xc3/0x180 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
__down_read_common+0x61/0x2c0 kernel/locking/rwsem.c:1250
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault arch/x86/mm/fault.c:1358 [inline]
handle_page_fault arch/x86/mm/fault.c:1498 [inline]
exc_page_fault+0x558/0x8a0 arch/x86/mm/fault.c:1554
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f2a378276f6
RSP: 002b:00007ffd7dd6fbd8 EFLAGS: 00010287
RAX: 0000001b32526000 RBX: 00007f2a379ac018 RCX: 0000001b32520000
RDX: 0000001b32526004 RSI: 0000001b32525438 RDI: 000000002c584407
RBP: 000000002c584407 R08: 0000001b32920000 R09: 000000002c58440b
R10: 00007ffd7dd72080 R11: 000000000000f174 R12: 00007f2a379a0000
R13: 0000000000000001 R14: 0000000000015364 R15: ffffffff84203274
INFO: task syz-executor.2:6949 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23856 pid:6949 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0x17d8/0x4990 kernel/sched/core.c:6622
schedule+0xc3/0x180 kernel/sched/core.c:6698
io_schedule+0x8c/0x100 kernel/sched/core.c:8884
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
folio_lock include/linux/pagemap.h:952 [inline]
write_cache_pages+0x58f/0x1450 mm/page-writeback.c:2440
mpage_writepages+0x107/0x1d0 fs/mpage.c:653
do_writepages+0x3a6/0x670 mm/page-writeback.c:2551
filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:390
__filemap_fdatawrite_range mm/filemap.c:423 [inline]
file_write_and_wait_range+0x20f/0x300 mm/filemap.c:781
__generic_file_fsync+0x72/0x190 fs/libfs.c:1132
generic_file_fsync+0x73/0xf0 fs/libfs.c:1173
generic_write_sync include/linux/fs.h:2452 [inline]
udf_file_write_iter+0x55b/0x660 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+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2a3788c0f9
RSP: 002b:00007f2a38578168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2a379abf80 RCX: 00007f2a3788c0f9
RDX: 000000000208e24b RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007f2a378e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7dd6fc0f R14: 00007f2a38578300 R15: 0000000000022000
INFO: task syz-executor.2:6956 blocked for more than 144 seconds.
Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26296 pid:6956 ppid:5106 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0x17d8/0x4990 kernel/sched/core.c:6622
schedule+0xc3/0x180 kernel/sched/core.c:6698
io_schedule+0x8c/0x100 kernel/sched/core.c:8884
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
folio_wait_writeback+0xec/0x1f0 mm/page-writeback.c:3127
migrate_folio_unmap mm/migrate.c:1198 [inline]
migrate_pages_batch mm/migrate.c:1691 [inline]
migrate_pages+0x2d5c/0x6670 mm/migrate.c:1979
do_mbind mm/mempolicy.c:1338 [inline]
kernel_mbind mm/mempolicy.c:1485 [inline]
__do_sys_mbind mm/mempolicy.c:1559 [inline]
__se_sys_mbind+0x75a/0x9c0 mm/mempolicy.c:1555
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2a3788c0f9
RSP: 002b:00007f2a38557168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f2a379ac050 RCX: 00007f2a3788c0f9
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000
RBP: 00007f2a378e7ae9 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7dd6fc0f R14: 00007f2a38557300 R15: 0000000000022000
Showing all locks held in the system:
3 locks held by kworker/u4:0/9:
#0: ffff888017814138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77f/0x13a0
#1: ffffc900000e7d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
#2: ffff88807cd4e0e0 (&type->s_umount_key#57){.+.+}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d1279f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d1281f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8d127820 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/u4:5/1117:
#0: ffff888016612938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x77f/0x13a0
#1: ffffc90005a9fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
#2: ffffffff8e289e10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf5/0xb80 net/core/net_namespace.c:575
#3: ffffffff8d12cef8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#3: ffffffff8d12cef8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:989
2 locks held by kworker/u4:6/2840:
#0: ffff8880b993be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
#1: ffffc9000ce07d20 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
3 locks held by kworker/0:3/4398:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77f/0x13a0
#1: ffffc9000695fd20 (xfrm_state_gc_work){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
#2: ffffffff8d12cef8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#2: ffffffff8d12cef8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:989
2 locks held by getty/4752:
#0: ffff888028477098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by kworker/1:5/5167:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77f/0x13a0
#1: ffffc90004fbfd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
2 locks held by kworker/1:10/6446:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77f/0x13a0
#1: ffffc900065afd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
2 locks held by kworker/1:11/6447:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77f/0x13a0
#1: ffffc90009d37d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c6/0x13a0 kernel/workqueue.c:2365
1 lock held by syz-executor.2/6948:
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1358 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1498 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x558/0x8a0 arch/x86/mm/fault.c:1554
2 locks held by syz-executor.2/6949:
#0: ffff888027036ae8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x254/0x2f0 fs/file.c:1046
#1: ffff88807cd4e460 (sb_writers#18){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
1 lock held by syz-executor.2/6956:
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:71 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: do_mbind mm/mempolicy.c:1312 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: kernel_mbind mm/mempolicy.c:1485 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: __do_sys_mbind mm/mempolicy.c:1559 [inline]
#0: ffff88807de8db98 (&mm->mmap_lock){++++}-{3:3}, at: __se_sys_mbind+0x47d/0x9c0 mm/mempolicy.c:1555
1 lock held by syz-executor.3/8190:
1 lock held by syz-executor.3/8275:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e5/0x560 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x1b4/0x410 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+0x1024/0x1070 kernel/hung_task.c:379
kthread+0x270/0x300 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
CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5407 [inline]
RIP: 0010:lock_is_held_type+0xbf/0x190 kernel/locking/lockdep.c:5712
Code: 31 db 48 83 fb 31 73 24 48 89 ef 4c 89 fe e8 28 02 00 00 85 c0 75 2a 48 ff c3 49 63 85 30 0a 00 00 48 83 c5 28 48 39 c3 7c d8 11 48 c7 c7 e0 55 ff 8c 48 89 de e8 80 97 bf f9 eb cb 31 ed eb
RSP: 0018:ffffc900001b7958 EFLAGS: 00000046
RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000080000003
RDX: 0000000000000000 RSI: ffffffff8d1277a0 RDI: ffff88801731a7a0
RBP: ffff88801731a7c8 R08: dffffc0000000000 R09: fffffbfff1ce8d66
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000046
R13: ffff888017319d40 R14: 00000000ffffffff R15: ffffffff8d1277a0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005639049991c0 CR3: 000000000cf30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x8d/0x130 kernel/rcu/update.c:125
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x10f/0xab0 kernel/locking/lockdep.c:5680
do_write_seqcount_end include/linux/seqlock.h:561 [inline]
psi_account_irqtime+0x371/0x5e0 kernel/sched/psi.c:1006
update_rq_clock_task kernel/sched/core.c:706 [inline]
update_rq_clock+0x22c/0x870 kernel/sched/core.c:749
__schedule+0x43b/0x4990 kernel/sched/core.c:6544
schedule+0xc3/0x180 kernel/sched/core.c:6698
smpboot_thread_fn+0x5b1/0xa30 kernel/smpboot.c:160
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308