Re: [Qemu-devel] test-qga failures on Fedora 24

["Marc-André Lureau" <mlureau@redhat.com>]

Hi

----- Original Message -----
> On 7 July 2016 at 00:02, Michael Roth <mdroth@linux.vnet.ibm.com> wrote:
> > Quoting John Snow (2016-07-06 17:41:32)
> >>
> >>
> >> On 07/06/2016 06:20 PM, Michael Roth wrote:
> >> > Quoting Marc-André Lureau (2016-07-06 16:40:52)
> >> >>> Here's the meat of it:
> >> >>>
> >> >>>   LINK  tests/test-qga
> >> >>> GTESTER tests/test-qga
> >> >>> **
> >> >>> ERROR:/home/bos/jhuston/src/qemu/tests/test-qga.c:266:test_qga_get_fsinfo:
> >> >>> assertion failed ret: GenericError realpath("/sys/dev/block/8:17"): No
> >> >>> such file or directory
> >> >>> GTester: last random seed: R02S9d55aa8939b9bd797279bd3f69d33466
> >> >>> **
> >> >>> ERROR:/home/bos/jhuston/src/qemu/tests/test-qga.c:685:test_qga_blacklist:
> >> >>> assertion failed ret: GenericError realpath("/sys/dev/block/8:17"): No
> >> >>> such file or directory
> >> >>> GTester: last random seed: R02Sb9bc461c2129c284f83033dca27827c6
> >> >>> /home/bos/jhuston/src/qemu/tests/Makefile.include:684: recipe for
> >> >>> target
> >> >>> 'check-tests/test-qga' failed
> >> >>> make: *** [check-tests/test-qga] Error 1
> >> >>>
> >> >>>
> >> >>> Any clues as to what's gone awry?
> 
> >> Good news: The problem went away.
> >>
> >> It was likely due to an external XFS drive I have that perhaps didn't
> >> properly register as ejected. I unmounted it and re-mounted it and now
> >> everything's fine.
> >>
> >> I'm not sure where it got 8:17, though. I guess mtab was stale?
> >
> > Yah, that would explain it. The values are pulled from mtab via
> > getmntent()
> 
> I just ran into this today too (in my case due to an external
> USB mass storage device that was powered-down without being
> unmounted). It's kind of annoying that the test fails: why should
> it care at all about what block devices you happen to have
> on your system, whether they're mounted or busted or otherwise ?
> 

Since guest-get-fsinfo isn't always succeeding, I propose to either handle errors gracefully and/or to move it with other tests under QGA_TEST_SIDE_EFFECTING.

QGA_TEST_SIDE_EFFECTING is supposed to succeed under a test VM/container, it's probably best to just move the test there.