Yes, it happens in a fresh session, in a freshly-restarted Mac. Here's what Mac Console tells me at the moment of a crash. The operative msg you'll see is: ...bin/jqt.command: line 14: 290 Segmentation fault ./jqt
Tue 31/Mar/15 14:54:58 com.apple.launchd.peruser.501[121] (com.apple.ReportCrash.Self[321]) Job appears to have crashed: Trace/BPT trap Tue 31/Mar/15 14:54:58 com.apple.launchd.peruser.501[121] catch_mach_exception_raise_state_identity(): PID: 320 thread: 0xca03 type: 0xa code: 0x7fff5fbfdef4 codeCnt: 0x2 flavor: 0x7fff5fbfdf04 old_state: 0x7fff5fbfdf0c old_stateCnt: 0x2c new_state: 0x7fff5fbfe41c new_stateCnt: 0x7fff5fbfe418 Tue 31/Mar/15 14:54:58 com.apple.launchd.peruser.501[121] (com.apple.ReportCrash[320]) Job appears to have crashed: Trace/BPT trap Tue 31/Mar/15 14:54:58 com.apple.launchd.peruser.501[121] catch_mach_exception_raise_state_identity(): PID: 290 thread: 0xca07 type: 0xa code: 0x7fff5fbfdef4 codeCnt: 0x2 flavor: 0x7fff5fbfdf04 old_state: 0x7fff5fbfdf0c old_stateCnt: 0x2c new_state: 0x7fff5fbfe41c new_stateCnt: 0x7fff5fbfe418 Tue 31/Mar/15 14:54:58 [0x0-0x24024].jqt[279] /Applications/j64-803/jqt.app/Contents/MacOS/../../../bin/jqt.command: line 14: 290 Segmentation fault ./jqt Tue 31/Mar/15 14:54:58 com.apple.launchd.peruser.501[121] ([0x0-0x24024].jqt[279]) Exited with exit code: 139 Perhaps I ought to point out that I'm still running Snow Leopard. In the past I've noted an occasional code incompatibility with apps developed under a later OS X. So perhaps the only fix is to upgrade. (Which for operational reasons I don't choose to do just yet.) On Tue, Mar 31, 2015 at 2:50 PM, chris burke <[email protected]> wrote: > I also cannot reproduce this. > > Does it happen in a fresh session? Perhaps something happened earlier that > made JQt unstable. > > On 31 March 2015 at 05:41, Ian Clark <[email protected]> wrote: > >> In JQt, entering: >> >> 127 { a. >> >> or any expression outputting it to the session, such as >> >> a. >> 128 {. a. >> >> terminates JQt in a hard crash. >> >> A different value to 127 is ok: >> >> 126 { a. >> ~ >> 128 { a. >> � >> >> or any expression which doesn't actually output (127{a.) to the session, >> e.g. >> >> z=: 127 { a. >> >> >> JVERSION >> Engine: j803/2014-10-19-11:11:11 >> Library: 8.03.13 >> Qt IDE: 1.3.1/5.3.2 >> Platform: Darwin 64 >> Installer: J803 install >> InstallPath: /applications/j64-803 >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
