From mboxrd@z Thu Jan 1 00:00:00 1970 From: annie li Subject: Re: Xen-unstable Linux 3.14-rc3 and 3.13 Network troubles Date: Thu, 20 Feb 2014 17:49:58 +0800 Message-ID: <5305CFC6.3080502@oracle.com> References: <1772884781.20140218222513@eikelenboom.it> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1772884781.20140218222513@eikelenboom.it> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Sander Eikelenboom Cc: Paul Durrant , Wei Liu , Zoltan Kiss , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On 2014/2/19 5:25, Sander Eikelenboom wrote: > Hi All, > > I'm currently having some network troubles with Xen and recent linux kernels. > > - When running with a 3.14-rc3 kernel in dom0 and a 3.13 kernel in domU > I get what seems to be described in this thread: http://www.spinics.net/lists/netdev/msg242953.html > > In the guest: > [57539.859584] net eth0: rx->offset: 0, size: 4294967295 > [57539.859599] net eth0: rx->offset: 0, size: 4294967295 > [57539.859605] net eth0: rx->offset: 0, size: 4294967295 > [57539.859610] net eth0: Need more slots > [58157.675939] net eth0: Need more slots > [58725.344712] net eth0: Need more slots > [61815.849180] net eth0: rx->offset: 0, size: 4294967295 > [61815.849205] net eth0: rx->offset: 0, size: 4294967295 > [61815.849216] net eth0: rx->offset: 0, size: 4294967295 > [61815.849225] net eth0: Need more slots This issue is familiar... and I thought it get fixed. From original analysis for similar issue I hit before, the root cause is netback still creates response when the ring is full. I remember larger MTU can trigger this issue before, what is the MTU size? Thanks Annie > > Xen reports: > (XEN) [2014-02-18 03:22:47] grant_table.c:1857:d0 Bad grant reference 19791875 > (XEN) [2014-02-18 03:42:33] grant_table.c:1857:d0 Bad grant reference 268435460 > (XEN) [2014-02-18 04:15:23] grant_table.c:289:d0 Increased maptrack size to 14 frames > (XEN) [2014-02-18 04:15:27] grant_table.c:289:d0 Increased maptrack size to 15 frames > (XEN) [2014-02-18 04:15:48] grant_table.c:289:d0 Increased maptrack size to 16 frames > (XEN) [2014-02-18 04:15:50] grant_table.c:289:d0 Increased maptrack size to 17 frames > (XEN) [2014-02-18 04:15:55] grant_table.c:289:d0 Increased maptrack size to 18 frames > (XEN) [2014-02-18 04:15:55] grant_table.c:289:d0 Increased maptrack size to 19 frames > (XEN) [2014-02-18 04:15:56] grant_table.c:289:d0 Increased maptrack size to 20 frames > (XEN) [2014-02-18 04:15:56] grant_table.c:289:d0 Increased maptrack size to 21 frames > (XEN) [2014-02-18 04:15:59] grant_table.c:289:d0 Increased maptrack size to 22 frames > (XEN) [2014-02-18 04:15:59] grant_table.c:289:d0 Increased maptrack size to 23 frames > (XEN) [2014-02-18 04:16:00] grant_table.c:289:d0 Increased maptrack size to 24 frames > (XEN) [2014-02-18 04:16:05] grant_table.c:289:d0 Increased maptrack size to 25 frames > (XEN) [2014-02-18 04:16:05] grant_table.c:289:d0 Increased maptrack size to 26 frames > (XEN) [2014-02-18 04:16:06] grant_table.c:289:d0 Increased maptrack size to 27 frames > (XEN) [2014-02-18 04:16:12] grant_table.c:289:d0 Increased maptrack size to 28 frames > (XEN) [2014-02-18 04:16:18] grant_table.c:289:d0 Increased maptrack size to 29 frames > (XEN) [2014-02-18 04:17:00] grant_table.c:1857:d0 Bad grant reference 268435460 > (XEN) [2014-02-18 04:17:00] grant_table.c:1857:d0 Bad grant reference 268435460 > (XEN) [2014-02-18 04:34:03] grant_table.c:1857:d0 Bad grant reference 4325377 > > > > Another issue with networking is when running both dom0 and domU's with a 3.14-rc3 kernel: > - i can ping the guests from dom0 > - i can ping dom0 from the guests > - But i can't ssh or access things by http > - I don't see any relevant error messages ... > - This is with the same system and kernel config as with the 3.14 and 3.13 combination above > (that previously worked fine) > > -- > > Sander > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel