From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: DomU's network interface will hung when Dom0 running 32bit Date: Wed, 16 Oct 2013 09:46:43 +0100 Message-ID: <1381913203.21901.46.camel@kazak.uk.xensource.com> References: <52590DFE.6080203@oracle.com> <20131014111958.GE11739@zion.uk.xensource.com> <525CAC21.5040202@oracle.com> <1381826609.24708.135.camel@kazak.uk.xensource.com> <525E3BDC.4060309@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: jianhai luan , Wei Liu , , To: annie li Return-path: Received: from smtp02.citrix.com ([66.165.176.63]:43810 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933953Ab3JPIsq (ORCPT ); Wed, 16 Oct 2013 04:48:46 -0400 In-Reply-To: <525E3BDC.4060309@oracle.com> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 2013-10-16 at 15:10 +0800, annie li wrote: > Is it a timer to be set as less than ULONG_MAX/2 to avoid > credit_timeout.expires rolling over? But the problem is that we can > not assure where jiffies start from, and this probably results into > current issue again. Not less than the absolute value ULONG_MAX/2, just less than ULONG_MAX/2 offset from "now". The time_eq macros deal with wraparound. Looks like Jianhai and Wei are discussing a better fix than an additional timer though. Ian