From: Ingo Molnar <mingo@elte.hu>
To: "Paul E. McKenney" <paulmck@us.ibm.com>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, oleg@tv-sign.ru
Subject: Re: [PATCH] Fix SIGSTOP locking issue in -rt
Date: Wed, 2 Nov 2005 14:11:00 +0100 [thread overview]
Message-ID: <20051102131100.GA11621@elte.hu> (raw)
In-Reply-To: <20051101195857.GA7098@us.ibm.com>
* Paul E. McKenney <paulmck@us.ibm.com> wrote:
> Hello!
>
> The following patch fixes a locking issue in -rt signals, where the
> job-control signals drop sighand_lock momentarily during signal
> handling. This interacts badly with the RCU-ification of unicast
> signal delivery. The fix is simply to acquire tasklist_lock for
> job-control signals, since these typically do not have stringent
> scalability or latency requirements.
thanks, applied - will show up in -rt3.
Ingo
prev parent reply other threads:[~2005-11-02 13:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-01 19:58 [PATCH] Fix SIGSTOP locking issue in -rt Paul E. McKenney
2005-11-02 13:11 ` Ingo Molnar [this message]
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