Comment 28 for bug 579276

SuSE added another two patches to their 2.6.32 tree. Quoting first message:

"These are patches which we have found useful for our 2.6.32 based SLES 11 SP1 release.

The first patch ["Make delayed refill more reliable"] is already upstream, but should be included in stable.

The second patch ["If the add_buf operation fails, indicate failure to the caller"]
is a subset of another upstream patch. Again, stable material.

The third patch ["virtio_net: Add schedule check to napi_enable call"]
solves the last remaining issue we saw when testing kvm configurations with the SUSE
certification test suite. Under heavy load, we observed rx stalls (first two patches applied), and this
third patch was crafted to address the issue. Please apply to stable.
I assume this last problem also exists in more recent kernels than 2.6.32, but I haven't validated that."

http://article.gmane.org/gmane.comp.emulators.kvm.devel/53655
http://article.gmane.org/gmane.comp.emulators.kvm.devel/53653
http://article.gmane.org/gmane.comp.emulators.kvm.devel/53654