Hi：

See lock_hash in h_table.c:

Flowing lines of code do not guarantee atomicity and I think it is not safe:

- atomic_get(&_tm_table->entries[i].locker_pid) != mypid

- lock(&_tm_table->entries[i].mutex)

- atomic_set(&_tm_table->entries[i].locker_pid, mypid)

Would you mind solving my confusion?

Best Regards!