On Sun, Dec 02, 2018 at 23:10:12 -0600, Chris Venteicher wrote:
> Catch execution paths where qemuProcessQmpFree is called before
> qemuProcessQmpStop then report error and force stop before proceeding.
>
> Also added public function header and debug message.
>
> Signed-off-by: Chris Venteicher <cventeic@xxxxxxxxxx>
> ---
> src/qemu/qemu_process.c | 17 ++++++++++++++++-
> 1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
> index e9b50745d3..1b6adf1b64 100644
> --- a/src/qemu/qemu_process.c
> +++ b/src/qemu/qemu_process.c
> @@ -8107,13 +8107,28 @@ static qemuMonitorCallbacks callbacks = {
> };
>
>
> +/**
> + * qemuProcessQmpFree:
> + * @proc: Stores Process and Connection State
Strange capitalization again.
> + *
> + * Free process data structure.
> + */
> void
> qemuProcessQmpFree(qemuProcessQmpPtr proc)
> {
> + VIR_DEBUG("proc=%p, proc->mon=%p", proc, (proc ? proc->mon : NULL));
> +
I don't think we need to log qemuProcessQmpFree(NULL) calls. I'd just
push this debug message after the check for proc == NULL.
> if (!proc)
> return;
>
> - qemuProcessQmpStop(proc);
> + /* This should never be non-NULL if we get here, but just in case... */
> + if (proc->mon || proc->pid) {
> + VIR_ERROR(_("Unexpected QEMU still active during process free"
> + " emulator: %s, pid: %lld, mon: %p"),
> + NULLSTR(proc->binary), (long long)proc->pid, proc->mon);
> + qemuProcessQmpStop(proc);
> + }
> +
Instead of doing this, I think it would make more sense to merge Stop
and Free functions into a single one.
> VIR_FREE(proc->binary);
> VIR_FREE(proc->libDir);
> VIR_FREE(proc->monpath);
Jirka
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