From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerone Young Subject: Re: Net grant tables breaking multiple nic domU Date: Tue, 13 Sep 2005 15:54:40 -0500 Message-ID: <1126644880.3029.2.camel@thinkpad> References: <1126643593.30044.11.camel@thinkpad> <43273B88.6080508@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <43273B88.6080508@us.ibm.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Nivedita Singhvi Cc: xen-devel List-Id: xen-devel@lists.xenproject.org On Tue, 2005-09-13 at 13:50 -0700, Nivedita Singhvi wrote: > Jerone Young wrote: > > While working Bugzilla #183 I figured out what was the problem... Net > > grant tables...something that is marked as DANGEROUS in the kernel > > config...is on by default. When net grant tables is compiled in bringing > > up two interfaces in a domU crashes the domU kernel. But when I compile > > both Dom0 & DomU without net grant tables I am able to use two > > interfaces in domU with no problem. I don't know a lot about net grant > > tables but could someone who know more about net grant tables take a > > look at this? > > > > > Jerone, > > Did you not see Jim Dykman's updates and posts on this bug? > He's found the root cause, and is putting together a patch, > although some of it might be interim because it exposes > another resource shortage which will have to be addressed > somehow. Expect a patch from him in the next day or two, > and see the bugzilla entry (and previous posts on xen-devel) > from Jim for the details. Yes I did see this. But if that is the case then why does disabling net grant tables fix the problem? So I just decided to come to the list to see if someone understanding the net grant table code might know. > > thanks, > Nivedita > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > -- Jerone Young IBM Linux Technology Center jyoung5@us.ibm.com 512-838-1157 (T/L: 678-1157)