From: Ingo Molnar <mingo@elte.hu>
To: Dinakar Guniguntala <dino@in.ibm.com>
Cc: David Singleton <dsingleton@mvista.com>, linux-kernel@vger.kernel.org
Subject: Re: PI BUG with -rt13
Date: Fri, 18 Nov 2005 14:27:15 +0100 [thread overview]
Message-ID: <20051118132715.GA3314@elte.hu> (raw)
In-Reply-To: <20051118132137.GA5639@in.ibm.com>
* Dinakar Guniguntala <dino@in.ibm.com> wrote:
> Ingo, Thanks for providing the fix. However I still hit the same bug
> even with your changes
even with my patch the robust-futex code is still quite broken. E.g. in
down_futex(), it accesses rt-mutex internals without any locking (!):
if (rt_mutex_free(lock)) {
__down_mutex(lock __EIP__);
rt_mutex_set_owner(lock, owner_task->thread_info);
}
both rt_mutex_free() and rt_mutex_set_owner() must be called with the
proper locking. David?
Ingo
next prev parent reply other threads:[~2005-11-18 13:27 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-17 16:18 PI BUG with -rt13 Dinakar Guniguntala
2005-11-17 16:41 ` Dinakar Guniguntala
2005-11-17 23:03 ` David Singleton
2005-11-18 9:29 ` Ingo Molnar
2005-11-18 13:21 ` Dinakar Guniguntala
2005-11-18 13:27 ` Ingo Molnar [this message]
2005-11-18 17:05 ` david singleton
2005-11-18 17:44 ` Ingo Molnar
2005-11-21 19:48 ` David Singleton
2005-11-21 21:26 ` Ingo Molnar
2005-11-22 2:01 ` david singleton
2005-11-24 14:57 ` Ingo Molnar
2005-11-24 20:26 ` Dinakar Guniguntala
2005-11-24 20:32 ` Dinakar Guniguntala
2005-11-24 22:25 ` david singleton
2005-11-25 4:56 ` david singleton
2005-11-25 7:34 ` Dinakar Guniguntala
2005-11-25 8:04 ` Dinakar Guniguntala
2005-11-25 5:04 ` Ingo Molnar
2005-11-25 13:27 ` Dinakar Guniguntala
2005-11-25 8:03 ` Ingo Molnar
2005-11-22 2:13 ` david singleton
[not found] ` <8D664A17-5B07-11DA-A840-000A959BB91E@mvista.com>
2005-11-22 9:37 ` Dinakar Guniguntala
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