Re: [Bug: 21.5-b28] infloop in XtAppPending on recent Mac OS X/recent MacPorts Xt

Wed, 11 Feb 2009 (11:30 -0000 UTC) Aidan Kehoe wrote: Haven't tried yet. I don't want people to be *too* alarmed ;-) but this is the kind of bug that suggests y'all may wanna be saving early and often. So I'm reporting it briefly here. I've also noticed dropped keystrokes on a Gentoo Linux box since I upgraded to X11R7. I originally thought it was the server, but I only notice it in XEmacs, not in other applications. Since the kernel is different and it seems to have something to do with non-X events (especially signals like SIGIO), it's possibly a manifestation of an interruptible variant of the same bug. robert delius royar writes: The server is not relevant to this, it's a libXt internal bug. I've observed similar lockups in TTY-only instances of X11 builds, too. The problem is the X event gathering mechanism, not the protocol side. I think it's a system, depending on all of the components to manifest. However, XtAppPending is documented to *never* block, so you're all at risk; XEmacs is entirely defenseless if XtAppPending blocks. Also, I've gone to some effort to make sure that XEmacs picks up the MacPorts versions of the libraries (among other things, I now have unstripped X11 libraries available :-). If you're using the Apple versions, they're probably somewhat older. _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-beta