==================================== WARNING: iou-sqp-5155/5159 still has locks held! 5.12.0-rc5-syzkaller-00721-gb2b3d18fc20e #0 Not tainted ------------------------------------ 1 lock held by iou-sqp-5155/5159: #0: ffffffe009ff1870 (&sqd->lock){+.+.}-{3:3}, at: io_sq_thread+0xb28/0xc0e fs/io_uring.c:6794 stack backtrace: CPU: 1 PID: 5159 Comm: iou-sqp-5155 Not tainted 5.12.0-rc5-syzkaller-00721-gb2b3d18fc20e #0 Hardware name: riscv-virtio,qemu (DT) Call Trace: [] walk_stackframe+0x0/0x23c arch/riscv/kernel/traps.c:201 [] dump_backtrace+0x40/0x4e arch/riscv/kernel/stacktrace.c:113 [] show_stack+0x22/0x2e arch/riscv/kernel/stacktrace.c:118 [] __dump_stack lib/dump_stack.c:79 [inline] [] dump_stack+0x148/0x1d8 lib/dump_stack.c:120 [] print_held_locks_bug kernel/locking/lockdep.c:6312 [inline] [] debug_check_no_locks_held+0xc8/0xca kernel/locking/lockdep.c:6318 [] try_to_freeze include/linux/freezer.h:66 [inline] [] get_signal+0x108a/0x14ba kernel/signal.c:2576 [] io_sq_thread+0x7e0/0xc0e fs/io_uring.c:6748 [] ret_from_exception+0x0/0x14