Le 07/12/2017 à 13:41, Peter Maydell a écrit :
> When we do a fork() in usermode emulation, we need to be in
> a start/end exclusive section, so that we can ensure that no
> other thread is in an RCU section. Otherwise you can get this
> deadlock:
>
> - fork thread: has mmap_lock, waits for rcu_sy
When we do a fork() in usermode emulation, we need to be in
a start/end exclusive section, so that we can ensure that no
other thread is in an RCU section. Otherwise you can get this
deadlock:
- fork thread: has mmap_lock, waits for rcu_sync_lock
(because rcu_init_lock() is registered as a pthre
