From: David Rientjes <rientjes@google.com>
To: Vaibhav Nagarnaik <vnagarnaik@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Michael Rubin <mrubin@google.com>,
David Sharp <dhsharp@google.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] trace: Set __GFP_NORETRY flag for ring buffer allocating process
Date: Tue, 7 Jun 2011 19:30:40 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1106071929570.15402@chino.kir.corp.google.com> (raw)
In-Reply-To: <1307491302-9236-1-git-send-email-vnagarnaik@google.com>
On Tue, 7 Jun 2011, Vaibhav Nagarnaik wrote:
> The tracing ring buffer is allocated from kernel memory. While
> allocating a large chunk of memory, OOM might happen which destabilizes
> the system. Thus random processes might get killed during the
> allocation.
>
> This patch adds __GFP_NORETRY flag to the ring buffer allocation calls
> to make it fail more gracefully if the system will not be able to
> complete the allocation request.
>
> Signed-off-by: Vaibhav Nagarnaik <vnagarnaik@google.com>
Acked-by: David Rientjes <rientjes@google.com>
next prev parent reply other threads:[~2011-06-08 2:30 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-26 19:52 [PATCH] trace: Set oom_score_adj to maximum for ring buffer allocating process Vaibhav Nagarnaik
2011-05-26 20:04 ` Steven Rostedt
2011-05-26 20:22 ` David Rientjes
2011-05-26 20:23 ` Vaibhav Nagarnaik
2011-05-26 20:33 ` David Rientjes
2011-05-26 21:00 ` Steven Rostedt
2011-05-26 22:28 ` Vaibhav Nagarnaik
2011-05-26 23:38 ` Steven Rostedt
2011-05-27 9:43 ` David Rientjes
2011-05-27 12:48 ` Steven Rostedt
2011-05-26 23:23 ` Vaibhav Nagarnaik
2011-05-27 17:58 ` Vaibhav Nagarnaik
2011-05-27 23:22 ` David Rientjes
2011-05-28 0:44 ` Vaibhav Nagarnaik
2011-05-28 1:50 ` Steven Rostedt
2011-05-30 6:23 ` KOSAKI Motohiro
2011-05-30 23:54 ` Vaibhav Nagarnaik
2011-05-30 23:46 ` Vaibhav Nagarnaik
2011-06-07 23:07 ` Steven Rostedt
2011-06-07 23:30 ` Vaibhav Nagarnaik
2011-06-07 23:41 ` [PATCH] trace: Set __GFP_NORETRY flag " Vaibhav Nagarnaik
2011-06-07 23:47 ` Frederic Weisbecker
2011-06-08 0:01 ` [PATCH v2] " Vaibhav Nagarnaik
2011-06-08 2:30 ` David Rientjes [this message]
2011-06-09 11:37 ` KOSAKI Motohiro
2011-06-09 12:14 ` Steven Rostedt
2011-06-09 18:41 ` Vaibhav Nagarnaik
2011-06-09 19:42 ` David Rientjes
2011-06-09 19:52 ` Steven Rostedt
2011-07-05 12:54 ` [tip:perf/core] ring-buffer: " tip-bot for Vaibhav Nagarnaik
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