Ticket UUID: | 1da19a69f8ce6bf055ee40ed66c28f8470496ac4 | |||
Title: | Backspace crashes 9.0 interpreter on FreeBSD | |||
Type: | Bug | Version: | 9.0.1 | |
Submitter: | jo.mos | Created on: | 2025-01-22 10:53:34 | |
Subsystem: | 18. [text] | Assigned To: | jan.nijtmans | |
Priority: | 5 Medium | Severity: | Important | |
Status: | Closed | Last Modified: | 2025-01-29 06:28:07 | |
Resolution: | Fixed | Closed By: | fvogel | |
Closed on: | 2025-01-29 06:28:07 | |||
Description: |
Even on a very basic installation pressing backspace inside a entry or text widget that contains a character ends up in a core dump. I'm using Tcl/Tk 9.0.1 build from source on a FreeBSD 14.2 amd64 system. Using GNU "make" instead of FreeBSDs "make" doesn't matter, and as far I know not every FreeBSD crashes - the one from the package maintainer f.e. doesn't. I've switched to brand new hardware & brand new installation and got the same result: core dump. Also on a blank, new virtual machine or using a new, fresh user account. All crashing machines got one thing in common: A Ryzen CPU without GPU, instead there's a separate graphic card. That's the only thing I could imagine when it comes to "what may differ your systems from others"… So I've build Tcl/Tk with "--enable-symbols", and here you can find a core dump: https://jmos.net/tcl/tclsh9.0.core The executed testfile: --------------------------------------------- #!/usr/local/bin/tclsh9.0 package require Tk text .t pack .t --------------------------------------------- Pressing "q" and then backspace leads to the linked core dump. | |||
User Comments: |
fvogel added on 2025-01-29 06:28:07:
The fix was merged on 25 Jan 2025. Closing, thanks. jo.mos added on 2025-01-25 13:42:40: Works :) Many thanks! jan.nijtmans added on 2025-01-25 12:22:57: Please try [f5940667b0a4e61f|this] commit (the previous one was based on Tk 8.7). jan.nijtmans added on 2025-01-25 11:33:23: I suspect that on FreeBSD, the ICU symbols don't have a version number, but the library name itself has. That's strange, no other platform has that. Does [7501e0f130b359e0|this] help? (I don't have FreeBSD available to test) fvogel added on 2025-01-25 09:29:32: Thank, that's perfect. I'll attach the back traces to this ticket for future reference. What's happening is that, when pressing the "q" key, the <<PrevChar>> binding triggers which runs
So this looks like a bug in TIP#621 implementation. Jan, could you please have a look? jo.mos added on 2025-01-25 06:15:39: Hm… I was once told: If a "stack trace" is desired, I simply have to provide a core dump… So I don't really know what to do, but somewhere I read that "gdb" is the tool to debug such a core dump. So I've done a "gdb path/to/tclsh9.0 mytestfile" and entered "bt" "and "bt full": https://jmos.net/tcl/bt.txt https://jmos.net/tcl/bt_full.txt I hope this is what is needed; Otherwise I need more specifics on what to do (as I am not familiar with core dumps and back traces…). fvogel added on 2025-01-24 21:41:53: Until I can find out how to make use of the provided core file, are you able to provide a stack trace (with --enable-symbols) please? |
