[Libguestfs] [PATCH nbdkit 1/4] valgrind: Remove --child-silent-after-fork.

[Eric Blake]

On 12/2/18 10:39 AM, Richard W.M. Jones wrote:
> Valgrind has two ways to control valgrinding into subprocesses,
> --child-silent-after-fork and --trace-children.
> 
> --child-silent-after-fork=yes causes tracing to stop when the process
> forks.  However in nbdkit we want to continue tracing nbdkit when it
> forks itself into the background, so I have removed this option now.
> 
> --trace-children=no causes tracing to stop when the program calls one
> of the exec(2) functions.  For nbdkit we want this function since we
> don't want to trace into subprocesses (eg. when using
> nbdkit-sh-plugin).
> 
> Note that although we are now tracing into the subprocess, the tests
> will still not exit with error if the subprocess leaks memory because
> we would need to properly ‘wait -n’ for the subprocess, which
> tests/functions.sh does not do.  However a message about the leak will
> still get printed in the log.
> ---
>   wrapper.c | 1 -
>   1 file changed, 1 deletion(-)

ACK

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org