From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:35454 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751007AbeBINGm (ORCPT ); Fri, 9 Feb 2018 08:06:42 -0500 Date: Fri, 9 Feb 2018 14:06:40 +0100 From: Greg KH To: Nikola Ciprich Cc: stable@vger.kernel.org, nik@linuxbox.cz Subject: Re: 4.14.x - KVM guests crashing Message-ID: <20180209130640.GC6252@kroah.com> References: <20180209095637.GA14309@pcnci.linuxbox.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180209095637.GA14309@pcnci.linuxbox.cz> Sender: stable-owner@vger.kernel.org List-ID: On Fri, Feb 09, 2018 at 10:56:37AM +0100, Nikola Ciprich wrote: > Hi, > > not sure whether this is the best list to ask for that, but maybe > somebody from -stable interested people has hit similar problem.. > > if it's not appropriate list to ask/report, please let me know > > since we started rolling to 4.14.x kernels, we've experienced multiple > KVM guest panics (with 4.14 on hosts) > We've first hit it with 4.14.12, yesterday I had similar problem with 4.14.16. The KVM mailing list would probably be the best place (kvm@vger.kernel.org), as we just backport existing upstream patches to the stable kernels. That being said, jumping from 4.4 to 4.14 is a very large leap (2 years of development), it might be good if you can try something in the middle? Or, an earlier 4.14.y? Try 4.14.3 or so and if that works, then it is easier to use 'git bisect' to track down the offending patch. thanks, greg k-h