INFO: task syz-executor283:6121 blocked for more than 143 seconds. Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor283 state:D stack:0 pid:6121 ppid:6116 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 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:1574 filemap_invalidate_lock include/linux/fs.h:847 [inline] blk_ioctl_zeroout block/ioctl.c:184 [inline] blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 blkdev_ioctl+0x35c/0xae4 block/ioctl.c:624 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: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 syz-executor283:6123 blocked for more than 143 seconds. Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor283 state:D stack:0 pid:6123 ppid:6120 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 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:1574 filemap_invalidate_lock include/linux/fs.h:847 [inline] blk_ioctl_zeroout block/ioctl.c:184 [inline] blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 blkdev_ioctl+0x35c/0xae4 block/ioctl.c:624 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: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 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffff80008e513840 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302 1 lock held by klogd/5692: 2 locks held by getty/5844: #0: ffff0000d29020a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800094e402f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2206 1 lock held by syz-executor283/6121: #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 1 lock held by syz-executor283/6122: 1 lock held by syz-executor283/6123: #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 1 lock held by syz-executor283/6124: #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 1 lock held by syz-executor283/6131: #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 1 lock held by syz-executor283/6132: #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c152fc58 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:510 =============================================