From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Christoph Mathys <eraserix@gmail.com>,
tglx@linutronix.de, rostedt@goodmis.org, C.Emde@osadl.org
Cc: Linux RT Users <linux-rt-users@vger.kernel.org>
Subject: Re: [ANNOUNCE] 4.1.15-rt17
Date: Thu, 4 Feb 2016 14:22:29 +0100 [thread overview]
Message-ID: <20160204132229.GA3381@linutronix.de> (raw)
In-Reply-To: <20160201205157.GA25777@linutronix.de>
* Sebastian Andrzej Siewior | 2016-02-01 21:51:57 [+0100]:
>I don't why int3 is invoked here at all but it seems to happen and it
>seems to do something with the jump_labels.
Now I know and go with this:
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -53,6 +53,7 @@ config KPROBES
config JUMP_LABEL
bool "Optimize very unlikely/likely branches"
depends on HAVE_ARCH_JUMP_LABEL
+ depends on (!INTERRUPT_OFF_HIST && !PREEMPT_OFF_HIST && !WAKEUP_LATENCY_HIST && !MISSED_TIMER_OFFSETS_HIST)
help
This option enables a transparent branch optimization that
makes certain almost-always-true or almost-always-false branch
Sebastian
prev parent reply other threads:[~2016-02-04 13:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-22 16:56 [ANNOUNCE] 4.1.15-rt17 Sebastian Andrzej Siewior
2015-12-23 12:43 ` Christoph Mathys
2016-02-01 20:51 ` Sebastian Andrzej Siewior
2016-02-04 13:22 ` Sebastian Andrzej Siewior [this message]
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