Hung Process

Hi, A sample X application seems to be hanging on certain occasions. The stack trace for the application is as follows: 80254963 poll (8045138, 1, ffffffff) 8026b487 select (6, 80471a8, 0, 0, 0) + 1a7 080e8459 _XWaitForReadable (85be5c8) + 69 080e8dae _XRead (85be5c8, 8047240, 20) + 6e 080e9587 _XReply (85be5c8, 8047240, 7, 0) + cf 080d80eb _XQueryFont (85be5c8, 40000b, 0) + 87 080d82e7 XQueryFont (85be5c8, 40000b) + 23 08085aa6 xrt_init_font (85e8960, 86359b8) + 2a 0808c3b0 xrt_text_update_internal (85e8960, 86359b8, 8047458) + 54 0808c659 xrt_text_create_internal (85e8960, 8047458) + 3d 0808d585 XrtTextCreate (85e88a8, 8047458) + 29 08076f3e setPlotText (1, 1, 44c9e23b, 451c4000, 80475c8, 8146fc4, 8146fd8) + 27e 08074f75 processExcurResult (8173d84) + 375 0806fc11 eventHandler () + 1cd 0807a581 XsProcessAsync (0, 85c9fbc, 8047650) + 65 080c22dc DoOtherSources (85bdd98) + 2c 080c2520 XtAppNextEvent (85bdd98, 8047684) + 98 080bc955 XtAppMainLoop (85bdd98) + 15 080bc93a XtMainLoop () + e 0806f6ec main (2, 804782c, 8047838) + 4c8 0806f209 ???????? () << OS: Solaris 2.5.1 Do let me know if there are any reasons for this occurring and if there are ways to address this issue. Appreciate your inputs. Thanks, Reji