Re: [RFC][PATCH] muptiple bugs in PI futexes

[Thomas Gleixner]

On Wed, 2007-06-06 at 01:00 +0400, Alexey Kuznetsov wrote:
> Hello!
> 
> > We actually need to do something about this, as we might loop for ever
> > there. The robust cleanup code can fail (e.g. due to list corruption)
> > and we would see exit_state != 0 and the OWNER_DIED bit would never be
> > set, so we are stuck in a busy loop.
> 
> Yes...
> 
> It is possible to take read_lock(&tasklist_lock) before:

We really want to avoid the tasklist_lock at all. It's not trivial, but
I think it's doable. I send you a patch to test tomorrow morning when my
brain recovered from looking at that code :)

	tglx



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/