Denis Kirjanov <k...@linux-powerpc.org> writes:
> Hi,
>
> Ok, now we have a new locking issue with interrupts which I found on my P8
> box.
> I haven't found where we take the console_lock, only in hvc_remove.
>
> BTW, Ben, looks like it's a bug in hvc_remove:
> we take spin_lock and then semaphore lock.
Yeah that does look bogus:
spin_lock_irqsave(&hp->lock, flags);
if (hp->index < MAX_NR_HVC_CONSOLES) {
console_lock();
vtermnos[hp->index] = -1;
cons_ops[hp->index] = NULL;
console_unlock();
}
The console lock is a bit "special", but I don't think it's *that* special.
cheers
