From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhigang Wang Subject: Re: xl mem-max error Date: Mon, 10 Nov 2014 10:38:23 -0500 Message-ID: <5460DBEF.5000504@oracle.com> References: <545BF386.1050106@oracle.com> <20141107110512.GA12109@zion.uk.xensource.com> <545CD572.9040801@oracle.com> <20141110123747.GE28360@zion.uk.xensource.com> <1415623447.25176.12.camel@citrix.com> <5460D9C5.4020905@oracle.com> <1415633435.25176.27.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta4.messagelabs.com ([85.158.143.247]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1Xnr37-0001by-0J for xen-devel@lists.xenproject.org; Mon, 10 Nov 2014 15:38:37 +0000 In-Reply-To: <1415633435.25176.27.camel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell Cc: xen-devel , Wei Liu , Ian Jackson List-Id: xen-devel@lists.xenproject.org OK. Let me try my best: >>> I'm confused by the description of what's going on, in particular the >>> mixing of mem-max commands and target xenstore nodes (since the former >>> doesn't really affect the latter). >>> >>> How was the domain started (memory= and maxmem=). xl create with 'memory = 700', no maxmem been set. I think it means maxmem = memory for this case. >>> What were static-max and target at the point? /local/domain/3/memory/static-max = "716800" /local/domain/3/memory/target = "716801" >>> What did they change to when xl mem-max was issued? When I issue 'xl mem-max 700', static-max and target in xenstore will not change, but it will cause the command to fail. Because: "libxl: error: libxl.c:4549:libxl_domain_setmaxmem: memory_static_max must be greater than or or equal to memory_dynamic_max" >>> What did you expect them to change to instead? I expect I can set the maxmem to the same value I initially set (700). Thanks, Zhigang >> >> Sorry for the confusion I made. Here is the problem I encountered: > > This is just restating what was upthread, which, as I say, is confusing > to me. > > Please can you just answer the 4 questions I asked and we can take it > from there. > >> >> 1. Start a VM with 'memory = 700'. >> 2. Doing 'xl mem-max 700' will cause a error. >> >> My expectation: after I start a VM with 'memory = 700', I can do 'xl mem-max 700'. >> >> A little analysis of the problem: >> >> 1. Error: "libxl: error: libxl.c:4549:libxl_domain_setmaxmem: memory_static_max must be greater than or or equal to memory_dynamic_max" >> >> 2. I find static-max always less then target memory in xenstore: >> >> /local/domain/3/memory/static-max = "716800" (memory_static_max) >> /local/domain/3/memory/target = "716801" (memory_dynamic_max) >> >> which looks bogus. >> >> Thanks, >> >> Zhigang > >