INFO: task syz-executor.4:15044 can't die for more than 159 seconds.
task:syz-executor.4  state:D stack:27672 pid:15044 ppid: 12251 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4984 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6265
 schedule+0xd2/0x260 kernel/sched/core.c:6338
 blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
 lo_release+0x160/0x1f0 drivers/block/loop.c:1768
 blkdev_put_whole block/bdev.c:694 [inline]
 blkdev_put+0x2fb/0x9e0 block/bdev.c:956
 deactivate_locked_super+0x94/0x160 fs/super.c:335
 mount_bdev+0x3c4/0x410 fs/super.c:1372
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1500
 do_new_mount fs/namespace.c:2988 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3318
 do_mount fs/namespace.c:3331 [inline]
 __do_sys_mount fs/namespace.c:3539 [inline]
 __se_sys_mount fs/namespace.c:3516 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4ec320901a
RSP: 002b:00007f4ec077cfa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020001500 RCX: 00007f4ec320901a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f4ec077d000
RBP: 00007f4ec077d040 R08: 00007f4ec077d040 R09: 0000000020000000
R10: 0000000000000001 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f4ec077d000 R15: 00000000200001c0
 </TASK>