Hi all, On Mon, Sep 22, 2014 at 10:04:35PM +0200, Cyril Bonté wrote: > Hi all, > > Le 22/09/2014 19:43, Lukas Tribus a écrit : > >Hi Seri, > > > > > >>This configuration works well in 1.5.4 release version and b53934e. > >>but, in 5436afc commit, haproxy crashes frequently. > > > >Thanks for this, this will help pinpointing the issues, however, I am still > >unable to reproduce the crash. > > > >Can you send a more complete configuration to reproduce the crash, > >including default and global sections? > > I could reproduce segfaults with the latest 1.5 snapshot. > It only happens with a dynamic "use_backend". > > The issue happens because during the configuration parsing, a dynamic > use_backend can't resolve the backend and leaves the union structure as > a string (which is also freed), not a pointer to a proxy. > > Before the commits pointed by Seri, bind_proc were not updated when a > dynamic rule is recognized. > Maybe a quick workaround could be the patch attached, but it means that > we still can't propagate processes for proxies used by dynamic rules.
Sorry, I missed this thread. I got a similar report privately yesterday and fixed it slightly differently : we don't run propagate_processes() if any error was encountered, since there is no way to know whether *all* backends are properly resolved in this case. For example, in the use case that was reported to me, the problem happened with default_backend, not with use_backend. Regards, Willy
