Re: [Xen-devel] VMX test report for Xen 4.4-unstable-C/S 27314

["Liu, SongtaoX" <songtaox.liu@xxxxxxxxx>]

> >>> On 08.08.13 at 09:13, "Ren, Yongjie" <yongjie.ren@xxxxxxxxx> wrote:
> > Hi All,
> > This is a report based on our testing for Xen 4.4-unstable on Intel
> > platforms.
> > Test environment:
> > Xen: Xen 4.4-unstable with qemu-upstream-unstable.git
> > Changeset: 27314:e6ca87e13937
> > Dom0: Linux kernel 3.10.5
> > Hardware: Intel Sandy Bridge, Ivy Bridge, Haswell systems
> >
> > New bugs (3):
> > 1. Large file remote copy in Windows guest (no GPL PV driver) cause
> > networking broken
> >
> > http://bugzilla-archived.xenproject.org//bugzilla/show_bug.cgi?id=1862
> > 2. device pass-through works even if VT-d is disabled in BIOS
> >
> > http://bugzilla-archived.xenproject.org//bugzilla/show_bug.cgi?id=1866
> 
> Are you sure this was seen with 27314:e6ca87e13937? I ask because
> 27204:06c2f6031aff is supposed to be taking care of this (and it did in my 
> and - I
> think - also in others' testing). To make things even less clear, the bug 
> itself
> mentions 27203 and 27214...
> 
Yes, it also exists in c/s 27204:06c2f6031aff, 27324:e9c802e5acc9.
vt-d function had been disabled in BIOS, with "iommu=0" in grub line,
"xl pci-assignable-add", "xl pci-attach" still works, and could passthrough to 
hvm guest,
but the attached PCI device could not get IP. 

> > 3. "xl list" shows no guest vcpu status when setting maxcpus=1 in
> > hypervisor grub line
> >
> > http://bugzilla-archived.xenproject.org//bugzilla/show_bug.cgi?id=1867
> 
> What would you expect to see? If the guest is runnable, none of the flags 
> would
> be set (not running, not blocked, not paused, not shut down, no shutdown
> reason, not dying). There simply is no "runnable" indicator, and on an
> overcommitted system with more than 1 pCPU you ought to be able to observe
> the same.
> 
Check it with c/s 27324:e9c802e5acc9 with up mode, the guest vcpus will show in 
"xentop" output after 20s and vcpu status changes too slow.
The system may be overmmited to response, I will close the bug.

> Songtao


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