From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752655AbeC3TEP (ORCPT ); Fri, 30 Mar 2018 15:04:15 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:38035 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752159AbeC3TEO (ORCPT ); Fri, 30 Mar 2018 15:04:14 -0400 X-Google-Smtp-Source: AIpwx4+5C0GaJQupC752QTNyxvf6k+YGlP63E9DV99bmkigT4JaQK2wSq905fMkyxyyT9tExmYvj9A== From: Kai-Heng Feng Content-Type: text/plain; charset=us-ascii; delsp=yes; format=flowed Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Mac OS X Mail 11.2 \(3445.5.20\)) Subject: Regression caused by commit bc976233a872, ethernet r8169 stops working after system S3 Message-Id: Date: Sat, 31 Mar 2018 03:04:04 +0800 Cc: Linux Kernel Mailing List To: Thomas Gleixner X-Mailer: Apple Mail (2.3445.5.20) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, A user reported [1] that the Realtek ethernet r8169 stops working after S3 since v4.15-rc6. The issue still exists in Linus' tree: [ 150.877998] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready [ 150.944101] do_IRQ: 3.37 No irq handler for vector [ 150.944105] r8169 0000:01:00.0 enp1s0: link down [ 150.944180] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready My desktop also has this device, which is also affected by this regression. So I did a bisect, and this is the bad commit: bc976233a872 genirq/msi x86/vector: Prevent reservation mode for non maskable MSI After this commit gets reverted, the issue is gone. Let me know if you need more debug information. Kai-Heng [1] https://bugs.launchpad.net/bugs/1752772