linux-kernel - Re: [ANNOUNCE] 3.8.10-rt6

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Message-ID: <20130430103500.GA4688@linutronix.de>
Date:	Tue, 30 Apr 2013 12:35:00 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Clark Williams <williams@...hat.com>
Cc:	linux-rt-users <linux-rt-users@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>, rostedt@...dmis.org
Subject: Re: [ANNOUNCE] 3.8.10-rt6

* Clark Williams | 2013-04-29 16:19:25 [-0500]:

>On Mon, 29 Apr 2013 22:12:02 +0200
>Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:
>>     - suspend / resume seems to program program the timer wrong and wait
>>       ages until it continues.
>> 
>
>It has to be something we're doing when we apply RT to v3.8.x, since
>v3.8.x suspends/resumes with no issues and I was able to suspend and
>resume fine with the 3.6-rt series. 

Are your problems gone with:

diff --git a/kernel/printk.c b/kernel/printk.c
index 6d52c34..8783ea5 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1583,6 +1583,8 @@ asmlinkage int vprintk_emit(int facility, int level,
 	 */
 	if (unlikely(forced_early_printk(fmt, args)))
 		return 1;
+	if (in_nmi())
+		return 1;
 
 	boot_delay_msec(level);
 	printk_delay();

>Clark

Sebastian
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