INFO: task syz-executor.2:15162 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13163-g04a357b1f6f0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26648 pid:15162 ppid:5123 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: 0033:0x7feb146276f6
RSP: 002b:00007ffc34941048 EFLAGS: 00010287
RAX: 0000001b32f32000 RBX: 00007feb147ac018 RCX: 0000001b32f20000
RDX: 0000001b32f32004 RSI: 0000001b32f319f4 RDI: 000000009dbb8973
RBP: 000000009dbb8973 R08: 0000001b33520000 R09: 000000009dbb8977
R10: 00007ffc349e8090 R11: 000000000002d82c R12: 00007feb147a0000
R13: 0000000000000001 R14: 0000000000000dd2 R15: ffffffff81f6a53c
INFO: task syz-executor.2:15163 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13163-g04a357b1f6f0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26312 pid:15163 ppid:5123 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
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
fat_file_fsync+0x77/0x200 fs/fat/file.c:191
vfs_fsync_range+0x13e/0x230 fs/sync.c:188
generic_write_sync include/linux/fs.h:2452 [inline]
generic_file_write_iter+0x25a/0x350 mm/filemap.c:4090
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: 0033:0x7feb1468c0f9
RSP: 002b:00007feb15469168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007feb147abf80 RCX: 00007feb1468c0f9
RDX: 000000000208e24b RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007feb146e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3494107f R14: 00007feb15469300 R15: 0000000000022000
INFO: task syz-executor.2:15166 blocked for more than 143 seconds.
Not tainted 6.2.0-syzkaller-13163-g04a357b1f6f0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28176 pid:15166 ppid:5123 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: 0033:0x7feb1468c0f9
RSP: 002b:00007feb15448168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007feb147ac050 RCX: 00007feb1468c0f9
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000
RBP: 00007feb146e7ae9 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3494107f R14: 00007feb15448300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c794e70 (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/13:
#0: ffffffff8c794b70 (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/28:
#0: ffffffff8c7959c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
2 locks held by getty/4754:
#0: ffff888027707098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:24/5407:
#0: ffff88814007e138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814007e138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814007e138 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88814007e138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff88814007e138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff88814007e138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361
#1: ffffc90005a97da8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365
#2: ffff8880348800e0 (&type->s_umount_key#72){++++}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414
2 locks held by kworker/u4:26/5412:
1 lock held by syz-executor.2/15162:
#0: ffff888020b1f098 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888020b1f098 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
2 locks held by syz-executor.2/15163:
#0: ffff88801d274d68 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046
#1: ffff888034880460 (sb_writers#20){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637
1 lock held by syz-executor.2/15166:
#0: ffff888020b1f098 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock include/linux/mmap_lock.h:71 [inline]
#0: ffff888020b1f098 (&mm->mmap_lock){++++}-{3:3}, at: do_mbind mm/mempolicy.c:1312 [inline]
#0: ffff888020b1f098 (&mm->mmap_lock){++++}-{3:3}, at: kernel_mbind+0x318/0x7c0 mm/mempolicy.c:1485
1 lock held by syz-executor.5/15601:
#0: ffff8880228c4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880228c4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3193
2 locks held by syz-executor.5/15604:
#0: ffff8880228c4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880228c4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_setsockopt+0x155/0x3a80 net/packet/af_packet.c:3791
#1: ffffffff8c7a0cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#1: ffffffff8c7a0cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:989
1 lock held by syz-executor.3/15603:
#0: ffffffff8e0ef5d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:486
2 locks held by syz-executor.3/15606:
#0: ffff88814b3b4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff88814b3b4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_setsockopt+0x155/0x3a80 net/packet/af_packet.c:3791
#1: ffffffff8c7a0cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8c7a0cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:989
1 lock held by syz-executor.3/15607:
#0: ffff88814b3b4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff88814b3b4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3193
1 lock held by syz-executor.2/15600:
#0: ffff8880228c6130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880228c6130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3193
1 lock held by syz-executor.2/15608:
#0: ffff8880228c6130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880228c6130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_setsockopt+0x155/0x3a80 net/packet/af_packet.c:3791
1 lock held by syz-executor.4/15625:
#0: ffff8880360fa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880360fa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_setsockopt+0x155/0x3a80 net/packet/af_packet.c:3791
1 lock held by syz-executor.4/15629:
#0: ffff8880360fa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880360fa130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3193
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller-13163-g04a357b1f6f0 #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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5412 Comm: kworker/u4:26 Not tainted 6.2.0-syzkaller-13163-g04a357b1f6f0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Workqueue: bat_events batadv_tt_purge
RIP: 0010:task_irq_context kernel/locking/lockdep.c:4565 [inline]
RIP: 0010:__lock_acquire+0x2f7/0x5d40 kernel/locking/lockdep.c:4994
Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 49 3d 00 00 48 8b 44 24 20 49 8d b5 1c 0a 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 f1 <48> 89 74 24 40 49 89 44 24 18 65 8b 05 d0 9f 9c 7e 85 c0 0f 95 c0
RSP: 0018:ffffc90005ae7a30 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff888031ae8918 RCX: ffff88807e51275c
RDX: dffffc0000000000 RSI: ffff88807e51275c RDI: ffff88807e5127d8
RBP: 0000000000000000 R08: 1ffff1100fca24f8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88807e5127c8
R13: ffff88807e511d40 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200c7030 CR3: 000000001cf9d000 CR4: 0000000000350ef0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5669 [inline]
lock_acquire+0x1e3/0x670 kernel/locking/lockdep.c:5634
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
batadv_tt_global_purge net/batman-adv/translation-table.c:2280 [inline]
batadv_tt_purge+0x127/0xaf0 net/batman-adv/translation-table.c:3562
process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308