From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: Re: 3.12.9-rt13: BUG: soft lockup Date: Fri, 7 Mar 2014 14:15:55 +0100 Message-ID: <20140307131555.GD8637@linutronix.de> References: <52FBF2F1.8040504@localhost> <52FD4D89.2000207@localhost> <52FDB71F.2020000@ccrma.stanford.edu> <52FE6681.8090807@ccrma.stanford.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: Fernando Lopez-Lezcano , linux-rt-users , Steven Rostedt , John Kacur , LKML To: Thomas Gleixner Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org * Thomas Gleixner | 2014-02-19 10:50:29 [+0100]: >On Fri, 14 Feb 2014, Fernando Lopez-Lezcano wrote: >> I could try to boot one of the machines into 3.12.xrtyy, replicate the >> conditions and wait. What should I look for if I can catch this in the act? > >dmesg and sysrq-t output would be a good start I guess. Yeah. Is it possible to use a serial console? It might happen that the kernel throws something out before it dies but it does not manage to write it to disk anymore. >Thanks, > > tglx Sebastian