From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Date: Fri, 11 Jan 2008 09:34:32 +0000 Subject: Re: CONFIG_NO_HZ breaks blktrace timestamps Message-Id: <20080111093432.GD8143@elte.hu> List-Id: References: <1199918912.8388.13.camel@lap75545.ornl.gov> <1199996752.9159.46.camel@lap75545.ornl.gov> In-Reply-To: <1199996752.9159.46.camel@lap75545.ornl.gov> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: David Dillow Cc: linux-kernel@vger.kernel.org, linux-btrace@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de, Jens Axboe * David Dillow wrote: > Ingo, Thomas added as I think this is related to > sched.c:__update_rq_clock()'s checking for forward time warps. yep, we've got some fixes in this area. Do blktrace timestamps work fine in v2.6.23, with NOHZ? Ingo