X Error of failed request: BadWindow (invalid Window parameter)

Stephen J. Turnbull wrote: > Rodney Sparapani writes: > > > X Error of failed request: BadWindow (invalid Window parameter) > > What's your window manager? I think this has to do with window > manager reparenting, but I don't exactly know what is going on. > > > > The window manager is the Java Desktop System. Basically, it's Sun's distribution of GNOME AFAICT. RODNEY

Rodney Sparapani wrote: > It just happened again, but this time, it didn't die. The first error > message is the same, the second is different: > > X Error of failed request: BadWindow (invalid Window parameter) > Major opcode of failed request: 18 (X_ChangeProperty) > Resource id in failed request: 0x681655 > Serial number of failed request: 6539403 > Current serial number in output stream: 6539405 > X Error of failed request: BadWindow (invalid Window parameter) > Major opcode of failed request: 25 (X_SendEvent) > Resource id in failed request: 0x681655 > Serial number of failed request: 6539404 > Current serial number in output stream: 6539405 A BadWindow error for XChangeProperty() followed by one for XSendEvent(), with consecutive serial numbers and identical window IDs. That *has* to be this code in x_reply_selection_request() in select-x.c: XChangeProperty (display, window, reply.property, type, format, PropModeReplace, data, size); /* At this point, the selection was successfully stored; ack it. */ XSendEvent (display, window, False, 0L, (XEvent *) &reply); However, the "window" variable is taken from the "requestor" field of a SelectionRequest event. IOW, an external program sends XEmacs a SelectionRequest event with a bogus window ID, and Xlib complains when XEmacs tries to reply to the (non-existent) requestor. This has to be a bug in an external program, and there are limits to what XEmacs can do about it. I don't think that it can prevent Xlib from throwing the error. AFAIK, there isn't any way to test whether a particular XID is valid (other than trying to use it and seeing if an error occurs). It's possible that there are bugs in the handling of X errors. At least one such bug was fixed in the 21.4 series (the error handler was calling into lisp which called into Xlib, which isn't allowed).

================================================================ Dear Bug Team! For both 21.4.20 and 21.4.21, I've been getting these types of messages: X Error of failed request: BadWindow (invalid Window parameter) Major opcode of failed request: 18 (X_ChangeProperty) Resource id in failed request: 0x680d73 Serial number of failed request: 1242578 Current serial number in output stream: 1242580 This happens when XEmacs is minimized so no data is lost, but it happens frequently enough to be annoying since you have to restart XEmacs and open all of your files again. I'm not sure what else to do here. ================================================================ System Info to help track down your bug: --------------------------------------- uname -a: SunOS don 5.9 Generic_118558-10 sun4u sparc SUNW,Sun-Fire-880 configure '--with-sound=esd' '--with-clash-detection=yes' '--cflags=-Os' '--with-dialogs=motif' '--with-widgets=motif' '--with-mule' '--with-xim=motif' '--with-png' '--with-dragndrop' '--with-cde' XEmacs 21.4.21 "Educational Television" configured for `sparc-sun-solaris2.9'. Compilation / Installation: Source code location: /opt/xemacs/xemacs-21.4.21 Installation prefix: /usr/local Runtime library search path: /usr/ccs/lib:/usr/openwin/lib:/opt/local/lib/gcc/sparc-sun-solaris2.9/4.1.1/../../.. Operating system description file: `s/sol2.h' Machine description file: `m/sparc.h' Compiler: gcc -Os Compiler version: gcc (GCC) 4.1.1 Compiler specs file: specs. Relocating allocator for buffers: yes GNU version of malloc: yes libc: SUNWcsl 11.9.0,REV=2002.04.06.15.27 Window System: Compiling in support for the X window system: - X Windows headers location: /usr/openwin/include - X Windows libraries location: /usr/openwin/lib - Handling WM_COMMAND properly. Compiling in support for Motif. *WARNING* Many versions of Motif are buggy, requiring workarounds. You are likely to experience slow redisplay. You may need to install vendor patches to Motif. See PROBLEMS for more information. Using Lucid menubars. Using Lucid scrollbars. Using Motif dialog boxes. Using Motif native widgets. Compiling in support for Drag'n'Drop (EXPERIMENTAL). - Drag'n'Drop prototype: CDE. TTY: Compiling in support for ncurses. Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. Compiling in support for PNG images. Compiling in support for JPEG images. Compiling in support for TIFF images. Sound: Compiling in support for ESD (Enlightened Sound Daemon). Databases: Compiling in support for Berkeley database. Compiling in support for GNU DBM. Compiling in support for LDAP. Internationalization: Compiling in support for Mule (multi-lingual Emacs). Compiling in support for XIM (X11R5+ I18N input method). - Using Motif to provide XIM support. Mail: Compiling in support for "dot-locking" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for ToolTalk. Compiling in support for dynamic shared object modules. 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