On Thu, 2006-06-22 at 09:10 +1000, Gawain Lynch wrote: > On Wed, 2006-06-21 at 21:29 +0300, Gilboa Davara wrote: > > Hello all, > > > > I'm trying to dedicate a number of NICs on a Xen setup to the guest OS. > > It was advised (in the -users list) that I use the pciback.hide option > > to hide the NICs from the host. > > > > I tried adding the pciback.hide command line option to the Xen0 kernel > > and got nothing. (Unknown boot option `pciback.hide=(xx:xx.x)': > > ignoring) > > After sifting through the kernel configuration I noticed that all FC5 > > xen kernels (including latest -testing) disable the PCIBACK support. > > (CONFIG_XEN_PCIDEV_FRONTEND and CONFIG_XEN_PCIDEV_BACKEND) > > > > Am I right? Do I need to enable these two to get pciback.hide working? > > Or am I barking at the wrong tree? > > > > Thanks, > > Gilboa > > > > See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=188771 > > There are some issues with emabling it, including security > considerations and it also breaks TCP checksums. The latter can be > fixed by running `ethtool -K eth0 tx off` > Gawain, Thanks for the link. I should have found it myself. /me club myself in the head for not googling for it... I can't seem to find documentation of TCP checksum failure and/or security issues. Is it still true for recent (2.6.16/17) kernels? Gilboa -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
