[Xquartz-dev] quartz-wm goes crazy on macbook air

[Jeremy Huddleston]

On Apr 7, 2011, at 10:02 AM, Jeremy Huddleston wrote:

> 
> On Apr 7, 2011, at 9:41 AM, Pelle Johansson wrote:
> 
>> Is the function named signal_handler part of quartz-wm? Because it should be calling _exit, not exit. Though that's just a followup bug I suppose.
> 
> Ah, good call.  That is our handler.  That still doesn't explain:
> 
> 1) Why are we in x_init_error_handler while in CFRunLoop?
> 2) Why did ImageLoaderMachO::doTermination barf?
> 
> As for us moving over to _exit(2) or _Exit(3) rather than exit(3), that would fix one of the problems, that's actually one of the least offensive of the signal_handler's crimes.  It looks like we're calling some *very* non-reentrant routines from within the SIGINT and SIGTERM signal handler, such as various calls into Xlib to make the window state safe for us to exit.  Yuck!  At least SIGHUP (for reloading preferences) is safe.

Ok, well I have a fix for the reentrancy snafu.  It'll be in 2.6.2_beta1 (probably tomorrow or early next week).

--Jeremy