Boris Derzhavets
2009-May-22 18:07 UTC
Re: [Xen-devel] [PATCH] privcmd: MMAPBATCH: Fix error handling/reporting
It''s new behavior i might be disconnected from remote Xen 3.4 Host during vnc session doing HVM install or just during running HVM via remote vnc connection. To restore network i always have to reboot Xen Host itself. I suspect hardware issues due to problems between cheap hub and Marvel Yukon PC-E Gigabit Ethernet. To scp 4 GB file i always have to replug network cable to PCI Ethernet ( RTL 8069SC or E8088 ) However, i attempted to switch off tso at HVM DomU:- [root@FHVM ethtool-6]# /usr/local/sbin/ethtool -K eth1 tso off Cannot set device tcp segmentation offload settings: Operation not supported [root@FHVM ethtool-6]# /usr/local/sbin/ethtool -K eth1 tx off Cannot set device tx csum settings: Operation not supported Boris. --- On Thu, 5/21/09, Jeremy Fitzhardinge <jeremy@goop.org> wrote: From: Jeremy Fitzhardinge <jeremy@goop.org> Subject: Re: [Xen-devel] [PATCH] privcmd: MMAPBATCH: Fix error handling/reporting To: "Boris Derzhavets" <bderzhavets@yahoo.com> Cc: "Ian Campbell" <ian.campbell@citrix.com>, xen-devel@lists.xensource.com Date: Thursday, May 21, 2009, 1:16 PM Boris Derzhavets wrote:> I''ve compiled 2.6.30-rc6-tip with xenfs built-in and successfully created and ran > Ubuntu 8.10 Server HVM and CentOS 5.3 HVM DomUs with traditional hvm-profiles. > Remote VNC connections to HVM DomUs might be unexpectedly frozen either broken after 5-10 minutes . >That''s not new behaviour though, is it? You reported VNC failures before. Does disabling GSO help? J _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Pasi Kärkkäinen
2009-May-22 18:22 UTC
Re: [Xen-devel] [PATCH] privcmd: MMAPBATCH: Fix error handling/reporting
On Fri, May 22, 2009 at 11:07:53AM -0700, Boris Derzhavets wrote:> > It''s new behavior i might be disconnected from remote Xen 3.4 Host during > vnc session doing HVM install or just during running HVM via remote vnc > connection. To restore network i always have to reboot Xen Host itself. > I suspect hardware issues due to problems between cheap hub and > Marvel Yukon PC-E Gigabit Ethernet. To scp 4 GB file i always have to replug > network cable to PCI Ethernet ( RTL 8069SC or E8088 ) >Could be a driver bug in the dom0 kernel. Drivers for that NIC have been really crappy.. -- Pasi> However, i attempted to switch off tso at HVM DomU:- > > [root@FHVM ethtool-6]# /usr/local/sbin/ethtool -K eth1 tso off > Cannot set device tcp segmentation offload settings: Operation not supported > [root@FHVM ethtool-6]# /usr/local/sbin/ethtool -K eth1 tx off > Cannot set device tx csum settings: Operation not supported >Try switching to PV-on-HVM drivers for much better performance than the default emulated vNICs.. if not using already. -- Pasi> Boris. > > --- On Thu, 5/21/09, Jeremy Fitzhardinge <jeremy@goop.org> wrote: > > From: Jeremy Fitzhardinge <jeremy@goop.org> > Subject: Re: [Xen-devel] [PATCH] privcmd: MMAPBATCH: Fix error handling/reporting > To: "Boris Derzhavets" <bderzhavets@yahoo.com> > Cc: "Ian Campbell" <ian.campbell@citrix.com>, xen-devel@lists.xensource.com > Date: Thursday, May 21, 2009, 1:16 PM > > Boris Derzhavets wrote: > > I''ve compiled 2.6.30-rc6-tip with xenfs built-in and successfully created and ran > > Ubuntu 8.10 Server HVM and CentOS 5.3 HVM DomUs with traditional hvm-profiles. > > Remote VNC connections to HVM DomUs might be unexpectedly frozen either broken after 5-10 minutes . > > > > That''s not new behaviour though, is it? You reported VNC failures before. Does disabling GSO help? > > J > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel