From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: pm/linux-next cause network stop working with qemu-kvm/e1000 Date: Sat, 23 Mar 2013 13:30:15 +0100 Message-ID: <2281042.ltEMndsGee@vostro.rjw.lan> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7Bit Return-path: Received: from hydra.sisk.pl ([212.160.235.94]:35955 "EHLO hydra.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750708Ab3CWMWy (ORCPT ); Sat, 23 Mar 2013 08:22:54 -0400 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Yinghai Lu Cc: Bob Moore , ACPI Devel Maling List , Linux Kernel Mailing List On Saturday, March 23, 2013 01:38:43 AM Yinghai Lu wrote: > On Fri, Mar 22, 2013 at 5:27 PM, Yinghai Lu wrote: > > c13085e519e8984fede41fa3d6a5502523b10996 is the first bad commit > > commit c13085e519e8984fede41fa3d6a5502523b10996 > > Author: Bob Moore > > Date: Fri Mar 8 09:19:38 2013 +0000 > > > > ACPICA: Resource Mgr: Prevent infinite loops in resource walks > > > > Add checks for zero-length resource descriptors in all code that > > loops through a resource descriptor list. This prevents possible > > infinite loops because the length is used to increment the traveral > > pointer and detect the end-of-descriptor. > > > > Signed-off-by: Bob Moore > > Signed-off-by: Lv Zheng > > Signed-off-by: Rafael J. Wysocki > > > > :040000 040000 84f29d6ee654ffe4c935ce9023208019b2ef09a5 > > c8a6613be9a5a130f69e654c5b560a8adb2174db M drivers > > > > > > long delay after > > calling ip_auto_config+0x0/0xea4 @ 1 > > > > also happen on one 8 sockets nehalem-ex. > > > > If I revert that commit, network works again. > > Attached patch fix the problem. Please fold it into offending patch in > pm/linux-next. I'd actually prefer to apply it as a separate patch, so can you please post it with a proper changelog? Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.