Re: [Qemu-devel] [PATCH 0/2] qtest: don't leak pid files and UNIX domain sockets

[Stefan Hajnoczi <stefanha@redhat.com>]

On Fri, Jan 31, 2014 at 12:07:34AM +0000, Peter Maydell wrote:
> On 21 November 2013 11:03, Stefan Hajnoczi <stefanha@redhat.com> wrote:
> > GLib uses abort(3) to exit failed test cases.  As a result, the pid file and
> > UNIX domain sockets for a running test are leaked upon failure.
> >
> > Since abort(3) does not call atexit(3) handler functions, we could set up a
> > SIGABRT handler that performs cleanup.  But there are other conditions where
> > processes die, like SIGSEGV or SIGBUS.
> >
> > Let's unlink pid files and UNIX domain sockets as soon as the QEMU process has
> > initialized and connections have been made.  This eliminates the possibility of
> > leaking these files.
> 
> So looking back through mailing list history suggests that these patches
> are supposed to avoid intermittent make check failures like:
> 
> TEST: tests/qom-test... (pid=5078)
>   /i386/qom/none:                                                      **
> ERROR:/home/petmay01/linaro/qemu-for-merges/tests/libqtest.c:71:init_socket:
> assertion failed (ret != -1): (-1 != -1)
> FAIL
> GTester: last random seed: R02S79ea313790bc9a8b21d9af5ed55c2fff
> (pid=5080)
>   /i386/qom/pc:                                                        OK
>   /i386/qom/isapc:                                                     OK
>   /i386/qom/q35:                                                       OK
> FAIL: tests/qom-test
> 
> but this patch series doesn't actually say that's what it's for,
> so does it fix that kind of error?

I still think we should merge these patches :).  Are you happy to merge
them?

Stefan