Re: [PATCH v1 0/2] Implement -run-with exit-with-parent=on

["Richard W.M. Jones" <rjones@redhat.com>]

On Fri, Oct 03, 2025 at 02:24:36PM +0100, Richard W.M. Jones wrote:
> An earlier WIP version was posted here:
> https://lists.gnu.org/archive/html/qemu-devel/2025-10/msg00309.html
> 
> In this version I have incorporated all of Daniel Berrange's feedback,
> and I also tested the change on macOS.
> 
> The new second patch modifies the test suite to use the new flag
> unconditionally, instead of open coding setting PR_SET_PDEATHSIG etc.
> The test suite fails for me both before and after this patch in the
> same way, so I assume this is nothing to do with the patch itself?
> 
>   4/405 qemu:func-quick+func-x86_64 / func-x86_64-bad_vmstate               ERROR            0.15s   exit status 1
> 
> Some points of note:
> 
>  - There's no way to find out if the qemu binary supports
>    exit-with-parent=on except to try it.  Maybe this should be exposed
>    somehow?

.. or exit-with-parent=best, but then it would no longer be a straight
boolean option.

>  - On macOS I wasn't able to find a satisfactory way to force
>    shutdown, except calling 'qemu_system_killed' and pretending we'd
>    been killed by SIGTERM (which does at least emulate what Linux &
>    FreeBSD do).  I suppose it'd be nice if there was a "killed by
>    parent" reason which also forced shutdown.
> 
> Rich.
> 

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