INFO: task syz-executor.2:10942 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller-g2cc14f52aeb7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:0 pid:10942 tgid:10938 ppid:6143 flags:0x0000000d
Call trace:
__switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1354/0x2360 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xb8/0x19c kernel/sched/core.c:6778
io_schedule+0x8c/0x12c kernel/sched/core.c:8998
folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1273
folio_wait_bit+0x30/0x40 mm/filemap.c:1412
folio_wait_writeback+0x14c/0x3bc mm/page-writeback.c:3065
migrate_folio_unmap mm/migrate.c:1184 [inline]
migrate_pages_batch+0xc1c/0x25b0 mm/migrate.c:1673
migrate_pages_sync mm/migrate.c:1866 [inline]
migrate_pages+0x1bf8/0x3114 mm/migrate.c:1948
do_mbind mm/mempolicy.c:1344 [inline]
kernel_mbind mm/mempolicy.c:1486 [inline]
__do_sys_mbind mm/mempolicy.c:1560 [inline]
__se_sys_mbind mm/mempolicy.c:1556 [inline]
__arm64_sys_mbind+0x1410/0x18e8 mm/mempolicy.c:1556
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
INFO: task segctord:10952 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller-g2cc14f52aeb7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord state:D stack:0 pid:10952 tgid:10952 ppid:2 flags:0x00000008
Call trace:
__switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1354/0x2360 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xb8/0x19c kernel/sched/core.c:6778
io_schedule+0x8c/0x12c kernel/sched/core.c:8998
folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1273
__folio_lock+0x2c/0x3c mm/filemap.c:1611
folio_lock include/linux/pagemap.h:1031 [inline]
nilfs_lookup_dirty_data_buffers+0x2b0/0x7e8 fs/nilfs2/segment.c:727
nilfs_segctor_scan_file+0x1e4/0xcdc fs/nilfs2/segment.c:1084
nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1206 [inline]
nilfs_segctor_collect fs/nilfs2/segment.c:1533 [inline]
nilfs_segctor_do_construct+0x16ec/0x6560 fs/nilfs2/segment.c:2081
nilfs_segctor_construct+0x110/0x768 fs/nilfs2/segment.c:2415
nilfs_segctor_thread_construct fs/nilfs2/segment.c:2523 [inline]
nilfs_segctor_thread+0x3d4/0xd74 fs/nilfs2/segment.c:2606
kthread+0x288/0x310 kernel/kthread.c:388
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:857
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffff80008e6b4740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:300
3 locks held by udevd/5715:
2 locks held by getty/5855:
#0: ffff0000d225e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff800094e702f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
4 locks held by kworker/0:5/6214:
#0: ffff0001b4146d98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline]
#0: ffff0001b4146d98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1349 [inline]
#0: ffff0001b4146d98 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1663 [inline]
#0: ffff0001b4146d98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2dc/0x2360 kernel/sched/core.c:6604
#1: ffff0001b4132e48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3c0/0x618 kernel/sched/psi.c:988
#2: ffff0001b414e298 (&ACCESS_PRIVATE(sdp, lock)){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline]
#2: ffff0001b414e298 (&ACCESS_PRIVATE(sdp, lock)){....}-{2:2}, at: srcu_invoke_callbacks+0x2d4/0x3d8 kernel/rcu/srcutree.c:1751
#3: ffff0000c512dcd0 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:518 [inline]
#3: ffff0000c512dcd0 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb0/0xf50 kernel/sched/core.c:4226
1 lock held by segctord/10952:
#0: ffff0000d881c2a0 (&nilfs->ns_segctor_sem){++++}-{3:3}, at: nilfs_transaction_lock+0x178/0x33c fs/nilfs2/segment.c:357
3 locks held by udevd/11060:
2 locks held by kworker/u4:19/13254:
2 locks held by syz-executor.1/15709:
1 lock held by syz-executor.3/15734:
1 lock held by syz-executor.3/15737:
3 locks held by syz-executor.3/15739:
#0: ffff800090f5f9e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffff800090f5f9e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xdbc net/core/rtnetlink.c:6555
#1: ffff0000d60b0d40 (team->team_lock_key#2){+.+.}-{3:3}, at: team_add_slave+0xac/0x2064 drivers/net/team/team.c:1972
#2: ffff80008e6ba0b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#2: ffff80008e6ba0b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3ac/0x728 kernel/rcu/tree_exp.h:996
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