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

[Michael Roth <mdroth@linux.vnet.ibm.com>]

Quoting Marc-André Lureau (2016-07-06 16:40:52)
> Hi
> 
> ----- Original Message -----
> > I upgraded to Fedora 24 last Friday before the long (American) weekend.
> > Probably a bad idea.
> > 
> > Regardless, test-qga has developed a new symptom on current development
> > HEAD that I don't know what to make of:
> > 
> > https://paste.fedoraproject.org/388356/14678205/
> > 
> > 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?
> > 
> 
> 
> build_guest_fsinfo_for_device() failed, it's probably worth to investigate why the agent treats this as a fatal error, this would likely happen in a guest too. Could you try to reproduce in a VM or give clues on your setup to reproduce it?
> 

The code assumes (non-virtual) block devices have a symlink at
/sys/dev/block/<major>:<minor>, maybe this isn't the case in Fedora
anymore?

The alternative is that realpath("/sys/dev/block/8:17", NULL) is what's actually
failing. That call assumes the first argument is a symlink, maybe that's
not the case on FC24?

Don't have an fc24 handy, but can check tomorrow.