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From: Paul Bolle <pebolle@tiscali.nl>
To: Stefan Seyfried <stefan.seyfried@googlemail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [REGRESSION] in 3.18-rc1: ppp crashes kernel
Date: Fri, 07 Nov 2014 12:53:13 +0100	[thread overview]
Message-ID: <1415361193.4390.46.camel@x220> (raw)
In-Reply-To: <545CA8B6.2060608@message-id.googlemail.com>

On Fri, 2014-11-07 at 12:10 +0100, Stefan Seyfried wrote:
> I bisected the issue multiple times and always arrived at
> 
> # first bad commit: [d6dd50e07c5bec00db2005969b1a01f8ca3d25ef] Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
> 
> which is a merge commit unfortunately.

That merge commit actually does add some code:

git show d6dd50e07c5bec00db2005969b1a01f8ca3d25ef
[...]
diff --cc init/main.c
index 8af2f1abfe38,e3c4cdd94d5b..c5c11da6c4e1
--- a/init/main.c
+++ b/init/main.c
@@@ -583,6 -585,6 +583,7 @@@ asmlinkage __visible void __init start_
  	early_irq_init();
  	init_IRQ();
  	tick_init();
++	rcu_init_nohz();
  	init_timers();
  	hrtimers_init();
  	softirq_init();

Wild guess: is CONFIG_RCU_NOCB_CPU perhaps set in your
v3.18-rc3 .config?


Paul Bolle


  reply	other threads:[~2014-11-07 11:53 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-07 11:10 [REGRESSION] in 3.18-rc1: ppp crashes kernel Stefan Seyfried
2014-11-07 11:53 ` Paul Bolle [this message]
2014-11-07 11:56   ` Stefan Seyfried
2014-11-07 12:54     ` Stefan Seyfried
2014-11-07 13:19       ` Paul Bolle
2014-11-07 13:22 ` Takashi Iwai
2014-11-07 13:22   ` Takashi Iwai
2014-11-07 15:08   ` Stefan Seyfried
2014-11-07 15:08     ` Stefan Seyfried

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