INFO: task syz-executor.4:7834 blocked for more than 143 seconds.
Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:0 pid:7834 tgid:7825 ppid:6220 flags:0x00000005
Call trace:
__switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x14b0/0x24cc kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xb8/0x19c kernel/sched/core.c:6817
schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6874
rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0xb4/0xc0 kernel/locking/rwsem.c:1580
filemap_invalidate_lock include/linux/fs.h:849 [inline]
blk_ioctl_zeroout block/ioctl.c:185 [inline]
blkdev_common_ioctl+0x19dc/0x2878 block/ioctl.c:514
blkdev_ioctl+0x35c/0xae4 block/ioctl.c:628
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857
__invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffff80008eea4ec0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:297
2 locks held by kworker/u4:4/191:
#0: ffff0001b3e4af58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:559 [inline]
#0: ffff0001b3e4af58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1385 [inline]
#0: ffff0001b3e4af58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1699 [inline]
#0: ffff0001b3e4af58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2e0/0x24cc kernel/sched/core.c:6643
#1: ffff0001b3e36c88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3c0/0x618 kernel/sched/psi.c:988
3 locks held by kworker/u4:6/1834:
2 locks held by getty/5953:
#0: ffff0000d659a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff800094fc02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.3/7716:
1 lock held by syz-executor.4/7834:
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:185 [inline]
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19dc/0x2878 block/ioctl.c:514
1 lock held by syz-executor.0/8144:
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:859 [inline]
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:225
1 lock held by syz-executor.0/8145:
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:859 [inline]
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:225
1 lock held by syz-executor.4/8431:
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:859 [inline]
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:225
1 lock held by syz-executor.2/8580:
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:859 [inline]
#0: ffff0000c14b4e58 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:225
1 lock held by syz-executor.2/8789:
#0: ffff80008eeaa7f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#0: ffff80008eeaa7f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3ac/0x728 kernel/rcu/tree_exp.h:995
1 lock held by syz-executor.0/8818:
#0: ffff80008eeaa7f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#0: ffff80008eeaa7f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x37c/0x728 kernel/rcu/tree_exp.h:995
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