Ticket UUID: | 4121b417d9c2ce765bdc54a1b09a05dd974c5457 | |||
Title: | Text widget crashes when changing font on MacOS | |||
Type: | Bug | Version: | 8.6.8 | |
Submitter: | anonymous | Created on: | 2018-04-18 10:24:33 | |
Subsystem: | 18. [text] | Assigned To: | nobody | |
Priority: | 5 Medium | Severity: | Minor | |
Status: | Closed | Last Modified: | 2020-07-07 13:56:30 | |
Resolution: | Out of Date | Closed By: | kevin_walzer | |
Closed on: | 2020-07-07 13:56:30 | |||
Description: |
When changing the font in TkChat on MacOS High Sierra, a segmentation fault occurs. I have not been able to create a minimal crashing script, but the following works reliably:
The backtrace indicates a crash in `Tcl_DStringSetLength`. * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x24) * frame #0: 0x0000000100182e2e libtcl8.6.dylib`Tcl_DStringSetLength + 20 frame #1: 0x0000000104a1347d libtk8.6.dylib`CharUndisplayProc + 95 frame #2: 0x0000000104a0bd3b libtk8.6.dylib`FreeDLines + 222 frame #3: 0x0000000104a10315 libtk8.6.dylib`TkTextRelayoutWindow + 157 frame #4: 0x0000000104a048da libtk8.6.dylib`TextEventProc + 233 frame #5: 0x000000010499d14a libtk8.6.dylib`Tk_HandleEvent + 1032 frame #6: 0x00000001049b886a libtk8.6.dylib`TkDoConfigureNotify + 134 frame #7: 0x00000001049a454a libtk8.6.dylib`Tk_MaintainGeometry + 582 frame #8: 0x00000001049a9031 libtk8.6.dylib`ArrangeGrid + 754 frame #9: 0x000000010017b2c2 libtcl8.6.dylib`TclServiceIdle + 75 frame #10: 0x000000010015f5c4 libtcl8.6.dylib`Tcl_DoOneEvent + 338 frame #11: 0x000000010499db2e libtk8.6.dylib`Tk_MainLoop + 33 frame #12: 0x000000010015a61c libtcl8.6.dylib`Tcl_MainEx + 1700 frame #13: 0x0000000100001a3d tclsh`main + 37 frame #14: 0x00007fff66125015 libdyld.dylib`start + 1 The following small change prevents the crash (but might have unintended effects) Index: macosx/tkMacOSXInt.h ================================================================== --- macosx/tkMacOSXInt.h +++ macosx/tkMacOSXInt.h @@ -180,12 +180,12 @@ | |||
User Comments: |
kevin_walzer added on 2020-07-07 13:56:30:
No longer present. mjanssen added on 2018-04-25 07:29:39: I can't reproduce with latest tkchat from http://core.tcl.tk/tclapps/ but that was with a different monitor config which I think might be related. I will check to confirm what I found. kevin_walzer added on 2018-04-21 13:06:59: Still can't reproduce this with a new build of TkChat against the tip of core-8-6-branch. I am also on macOS 10.13.4. mjanssen added on 2018-04-21 09:59:40: I may be relevant that this happens on the latest version of High Sierra kevin_walzer added on 2018-04-18 12:52:26: Can't reproduce here, maybe this has been fixed already? The current build of TkChat is a bit outdated. Let me post a new build of TkChat today or tomorrow and see if that works for you. |