tfork() test hanging in socket_wrapper lock

[Andreas Schneider]

On Monday, 19 November 2018 19:01:18 CET Andrew Bartlett wrote:
> On Mon, 2018-11-19 at 11:54 +0100, Andreas Schneider wrote:
> > On Monday, 19 November 2018 03:59:35 CET Andrew Bartlett wrote:
> > > Today on sn-devel my autobuild hung running the tfork test:
> > > 
> > > It appears to be waiting forever for a mutex lock.
> > 
> > Anoop and myself tried to reproduce it, but we couldn't. However helgrind
> > reports several errors in tfork itself.
> 
> I should have mentioned, I've left them stuck in case they can be
> debugged.

I think Ralph already nailed it. It is an issue with SIGCHLD handling in 
tfork.

https://gitlab.com/samba-team/devel/samba/pipelines/37140126

Already looks good.

However we are looking into Thread Sanitizer right now.


	Andreas

-- 
Andreas Schneider                      asn at samba.org
Samba Team                             www.samba.org
GPG-ID:     8DFF53E18F2ABC8D8F3C92237EE0FC4DCC014E3D