From mboxrd@z Thu Jan 1 00:00:00 1970 From: wsa@the-dreams.de (Wolfram Sang) Date: Fri, 3 Jul 2015 16:37:03 +0200 Subject: Possible regression due to "tick: broadcast: Prevent livelock from event handler" In-Reply-To: References: <20150703024044.GB24695@verge.net.au> <20150703105441.GF1521@katana> <20150703133245.GA19284@katana> Message-ID: <20150703143703.GB19284@katana> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > So this is a single core machine and uses the em_sti timer w/o the > broadcast nonsense. In Simons case it looks like em_sti is used as > broadcast device. We use the same board. Just my kernel has SMP=n. > Though the issues you see in the highres=n case might be the same as > the ones Simon is observing. I hope so. One good thing about the issue I see is that it is 100% reproducable. > So in that nohz=y highres=n case, does adding idle=poll on the command > line fix the issue? Nope, still hangs. Thanks for assisting! Wolfram -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: