From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Hill Subject: Re: Shutting down a VM with Kernel 4.14 will sometime hang and a reboot is the only way to recover. Date: Mon, 4 Dec 2017 14:51:04 -0500 Message-ID: <9da15781-b6e0-3688-f6b2-2ef483b39d0d@redhat.com> References: <7bd45f84-d07e-7fca-6ca3-07dededd092d@redhat.com> <29f8e09f-8920-52d0-02f4-c0fb779135ee@redhat.com> <9c912f3b-081c-8b02-17c8-453ebf36f42c@redhat.com> <10fe2b98-1e26-9539-9f49-0d01f8693e04@redhat.com> <6b41b4e5-6c0c-fce6-21fe-02dd8f550095@redhat.com> <634116a6-6338-4249-7d2d-430b654cc99c@redhat.com> <1f789868-7fda-3553-7078-3298873fb355@redhat.com> <918c4152-bcf9-b28c-0f54-f51d07d82bfc@redhat.com> <68b5d4aa-1d48-d9a1-fc47-62ee8d7ad07a@redhat.com> <623df785-b79c-80d1-899f-6fcc10f70e69@redhat.com> <61be2e2b-9aeb-1a82-d607-a6af00f8c9c6@redhat.com> <094aabc6-4e6b-841e-2b7b-177b31e8ed07@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit To: Jason Wang , Paolo Bonzini , kvm@vger.kernel.org Return-path: Received: from mail-ua0-f177.google.com ([209.85.217.177]:37347 "EHLO mail-ua0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751205AbdLDTvI (ORCPT ); Mon, 4 Dec 2017 14:51:08 -0500 Received: by mail-ua0-f177.google.com with SMTP id l36so13387540uae.4 for ; Mon, 04 Dec 2017 11:51:08 -0800 (PST) In-Reply-To: Content-Language: en-US Sender: kvm-owner@vger.kernel.org List-ID: On 2017-12-03 11:08 PM, Jason Wang wrote: > > > On 2017年12月02日 00:38, David Hill wrote: >>> >>> Finally, I reverted 581fe0ea61584d88072527ae9fb9dcb9d1f2783e too ... >>> compiling and I'll keep you posted. >> >> So I'm still able to reproduce this issue even with reverting these 3 >> commits.  Would you have other suspect commits ? > > Thanks for the testing. No, I don't have other suspect commits. > > Looks like somebody else it hitting your issue too (see > https://www.spinics.net/lists/netdev/msg468319.html) > > But he claims the issue were fixed by using qemu 2.10.1. > > So you may: > > -try to see if qemu 2.10.1 solves your issue It didn't solve it for him... it's only harder to reproduce. [1] > -if not, try to see if commit 2ddf71e23cc246e95af72a6deed67b4a50a7b81c > ("net: add notifier hooks for devmap bpf map") is the first bad commit I'll try to see what I can do here > -if not, maybe you can continue your bisection through git bisect skip > Some commits are so broken that the system won't boot ...  What I fear is that if I git bisect skip those commits, I'll also skip the commit culprit of my original problem [1] https://www.spinics.net/lists/netdev/msg469887.html