INFO: task syz-executor.5:4696 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack: 0 pid: 4696 ppid: 4294 flags:0x0000000d Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe08/0x1bf8 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 rwsem_down_write_slowpath+0xcb8/0x13f4 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blkdev_fallocate+0x208/0x424 block/fops.c:603 vfs_fallocate+0x4a4/0x5f4 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.4:4700 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack: 0 pid: 4700 ppid: 4298 flags:0x00000005 Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe08/0x1bf8 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 rwsem_down_write_slowpath+0xcb8/0x13f4 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blkdev_fallocate+0x208/0x424 block/fops.c:603 vfs_fallocate+0x4a4/0x5f4 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.2:4704 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack: 0 pid: 4704 ppid: 4281 flags:0x00000005 Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe08/0x1bf8 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 rwsem_down_write_slowpath+0xcb8/0x13f4 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blkdev_fallocate+0x208/0x424 block/fops.c:603 vfs_fallocate+0x4a4/0x5f4 fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff800014361520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:312 2 locks held by kworker/u4:3/366: 1 lock held by klogd/3650: 2 locks held by getty/3804: #0: ffff0000d2fc5098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001be0e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158 1 lock held by syz-executor.0/4693: 1 lock held by syz-executor.5/4696: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4700: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/4704: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.1/4853: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.3/4915: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.0/4928: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/4971: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.5/4975: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4977: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.1/5006: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.3/5027: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.0/5046: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/5096: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.5/5123: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/5126: #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cc9a5010 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 =============================================