On Fri, Jan 04, 2019 at 06:59:09PM +0100, Martin Wilck wrote:
> From: Chongyun Wu <wu.chongyun@xxxxxxx>
>
> Test environment: 25 hosts, each host have more than 100 luns,
> each lun have two paths.
> Some times when we try to ceate new multipath will encounter "could
> not create uxsock:98" but the multipathd still running not shutdown
> and can't response any multipathd commands also.
>
> After reproduce this issue and debug, found below fixes might work:
> (1) set_config_state() after pthread_cond_timedwait() other threads
> might changed the running_state from DAEMON_SHUTDOWN to other status
> like DAEMON_IDLE, which will make the shutdown process stopped.
> I found logs to prove this really happened, so we need add judgement
> here too.
>
> (2) [this part removed by mwilck]
>
Reviewed-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
> Signed-off-by: Chongyun Wu <wu.chongyun@xxxxxxx>
> Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
> ---
> multipathd/main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/multipathd/main.c b/multipathd/main.c
> index 99145293..6a5d105a 100644
> --- a/multipathd/main.c
> +++ b/multipathd/main.c
> @@ -247,7 +247,7 @@ int set_config_state(enum daemon_status state)
> rc = pthread_cond_timedwait(&config_cond,
> &config_lock, &ts);
> }
> - if (!rc) {
> + if (!rc && (running_state != DAEMON_SHUTDOWN)) {
> running_state = state;
> pthread_cond_broadcast(&config_cond);
> #ifdef USE_SYSTEMD
> --
> 2.19.2
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