From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <55899093.4050006@siemens.com> Date: Tue, 23 Jun 2015 19:00:03 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <558843FB.3040704@siemens.com> <5588FA58.2080403@siemens.com> <20150623141142.GK17436@csclub.uwaterloo.ca> <55896A1A.2030408@siemens.com> <20150623160736.GL17436@csclub.uwaterloo.ca> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai] I-Pipe Tracer and linux ftrace List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Antoine Durand , Lennart Sorensen Cc: xenomai@xenomai.org On 2015-06-23 18:18, Antoine Durand wrote: > booting with 'maxcpus=2' in my case has the same behavior than > CONFIG_NR_CPUS=2 > the clocksource switche to refined-jiffies and system time is wrong (very > very slow) Ugh, reproduced something with a 4-core VM and maxcpus=2. I get a kernel crash in __ipipe_ack_hrtimer_irq. Probably an online vs. possible cpus issue. Will look into this. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SES-DE Corporate Competence Center Embedded Linux