initialize finalize writeinitialize finalize writeinitialize finalize writeinitialize finalize writealloc: invalid block: 0x7ffff7a0d9af: 2d ff

Program received signal SIGABRT, Aborted.
0x00007ffff6cde6f5 in raise () from /lib64/libc.so.6
Missing separate debuginfos, use: dnf debuginfo-install zlib-1.2.8-10.fc24.x86_64
(gdb) bt
#0  0x00007ffff6cde6f5 in raise () from /lib64/libc.so.6
#1  0x00007ffff6ce02fa in abort () from /lib64/libc.so.6
#2  0x00007ffff7b218e1 in Tcl_PanicVA (format=0x7ffff7ba2668 "alloc: invalid block: %p: %x %x", argList=0x7fffffffccb8) at /home/aspect/Tcl/Env/src/tcl/generic/tclPanic.c:123
#3  0x00007ffff7b21980 in Tcl_Panic (format=0x7ffff7ba2668 "alloc: invalid block: %p: %x %x") at /home/aspect/Tcl/Env/src/tcl/generic/tclPanic.c:160
#4  0x00007ffff7b44f3f in Ptr2Block (ptr=0x7ffff7a0d9bf <Tcl_ListObjCmd> "UH\211\345H\203\354\020H\211}\370H\211u\360\211\320H\211ʃ\370\001~#H\203\302\b\203\350\001H\211։\307\350\366\213\374\377H\211\302H\213E\360H\211\326H\211\307\350\344\211\374\377\270") at /home/aspect/Tcl/Env/src/tcl/generic/tclThreadAlloc.c:842
#5  0x00007ffff7b4452a in TclpFree (ptr=0x7ffff7a0d9bf <Tcl_ListObjCmd> "UH\211\345H\203\354\020H\211}\370H\211u\360\211\320H\211ʃ\370\001~#H\203\302\b\203\350\001H\211։\307\350\366\213\374\377H\211\302H\213E\360H\211\326H\211\307\350\344\211\374\377\270") at /home/aspect/Tcl/Env/src/tcl/generic/tclThreadAlloc.c:408
#6  0x00007ffff7b1da43 in TclFreeObj (objPtr=0x67cd80) at /home/aspect/Tcl/Env/src/tcl/generic/tclObj.c:1426
#7  0x00007ffff7b115f5 in FreeListInternalRep (listPtr=0x67ccc0) at /home/aspect/Tcl/Env/src/tcl/generic/tclListObj.c:1766
#8  0x00007ffff7b1dac9 in TclFreeObj (objPtr=0x67ccc0) at /home/aspect/Tcl/Env/src/tcl/generic/tclObj.c:1460
#9  0x00007ffff7b55235 in UnsetVarStruct (varPtr=0x63e1a0, arrayPtr=0x0, iPtr=0x6305b0, part1Ptr=0x67cc60, part2Ptr=0x0, flags=64, index=0) at /home/aspect/Tcl/Env/src/tcl/generic/tclVar.c:2351
#10 0x00007ffff7b5954c in TclDeleteCompiledLocalVars (iPtr=0x6305b0, framePtr=0x63e130) at /home/aspect/Tcl/Env/src/tcl/generic/tclVar.c:5083
#11 0x00007ffff7b162d0 in Tcl_PopCallFrame (interp=0x6305b0) at /home/aspect/Tcl/Env/src/tcl/generic/tclNamesp.c:404
#12 0x00007ffff7b32828 in InterpProcNR2 (data=0x67c8d8, interp=0x6305b0, result=0) at /home/aspect/Tcl/Env/src/tcl/generic/tclProc.c:1843
#13 0x00007ffff79f38e0 in TclNRRunCallbacks (interp=0x6305b0, result=0, rootPtr=0x67ccf0) at /home/aspect/Tcl/Env/src/tcl/generic/tclBasic.c:4391
#14 0x00007ffff79f3047 in Tcl_EvalObjv (interp=0x6305b0, objc=4, objv=0x6ae120, flags=131072) at /home/aspect/Tcl/Env/src/tcl/generic/tclBasic.c:4121
#15 0x00007ffff7b05784 in InvokeTclMethod (rtPtr=0x699650, method=0x7ffff7b9c2d0 "write", argOneObj=0x67d4a0, argTwoObj=0x0, resultObjPtr=0x7fffffffd1e0) at /home/aspect/Tcl/Env/src/tcl/generic/tclIORTrans.c:2019
#16 0x00007ffff7b06e31 in TransformWrite (rtPtr=0x699650, errorCodePtr=0x7fffffffd2d4, buf=0x6b4fe8 "okay\r\n", toWrite=6) at /home/aspect/Tcl/Env/src/tcl/generic/tclIORTrans.c:3174
#17 0x00007ffff7b04e5a in ReflectOutput (clientData=0x699650, buf=0x6b4fe8 "okay\r\n", toWrite=6, errorCodePtr=0x7fffffffd2d4) at /home/aspect/Tcl/Env/src/tcl/generic/tclIORTrans.c:1296
#18 0x00007ffff7aef24c in ChanWrite (chanPtr=0x6996d0, src=0x6b4fe8 "okay\r\n", srcLen=6, errnoPtr=0x7fffffffd2d4) at /home/aspect/Tcl/Env/src/tcl/generic/tclIO.c:517
#19 0x00007ffff7af1530 in FlushChannel (interp=0x0, chanPtr=0x6996d0, calledFromAsyncFlush=0) at /home/aspect/Tcl/Env/src/tcl/generic/tclIO.c:2747
#20 0x00007ffff7af3695 in Write (chanPtr=0x6996d0, src=0x7ffff7b9b670 "", srcLen=0, encoding=0x625410) at /home/aspect/Tcl/Env/src/tcl/generic/tclIO.c:4398
#21 0x00007ffff7af2e75 in Tcl_WriteChars (chan=0x699450, src=0x7ffff7b9b66f "\n", len=1) at /home/aspect/Tcl/Env/src/tcl/generic/tclIO.c:4093
#22 0x00007ffff7afcdc2 in Tcl_PutsObjCmd (dummy=0x0, interp=0x6305b0, objc=2, objv=0x63e110) at /home/aspect/Tcl/Env/src/tcl/generic/tclIOCmd.c:189
#23 0x00007ffff79f3853 in Dispatch (data=0x67d418, interp=0x6305b0, result=0) at /home/aspect/Tcl/Env/src/tcl/generic/tclBasic.c:4358
#24 0x00007ffff79f38e0 in TclNRRunCallbacks (interp=0x6305b0, result=0, rootPtr=0x0) at /home/aspect/Tcl/Env/src/tcl/generic/tclBasic.c:4391
#25 0x00007ffff79f3047 in Tcl_EvalObjv (interp=0x6305b0, objc=1, objv=0x63deb0, flags=2097168) at /home/aspect/Tcl/Env/src/tcl/generic/tclBasic.c:4121
#26 0x00007ffff79f5833 in TclEvalEx (interp=0x6305b0, script=0x68b310 "proc trans args {list initialize finalize write}\nchan push stdout trans\n\nproc foo {} {puts okay}\ntrace add execution foo enterstep {puts X; list}\nfoo\n", numBytes=150, flags=0, line=6, clNextOuter=0x0, outerScript=0x68b310 "proc trans args {list initialize finalize write}\nchan push stdout trans\n\nproc foo {} {puts okay}\ntrace add execution foo enterstep {puts X; list}\nfoo\n") at /home/aspect/Tcl/Env/src/tcl/generic/tclBasic.c:5260
#27 0x00007ffff7b0af4c in Tcl_FSEvalFileEx (interp=0x6305b0, pathPtr=0x67c090, encodingName=0x0) at /home/aspect/Tcl/Env/src/tcl/generic/tclIOUtil.c:1826
#28 0x00007ffff7b15274 in Tcl_MainEx (argc=-1, argv=0x7fffffffda88, appInitProc=0x40109c <Tcl_AppInit>, interp=0x6305b0) at /home/aspect/Tcl/Env/src/tcl/generic/tclMain.c:424
#29 0x0000000000401095 in main (argc=2, argv=0x7fffffffda78) at /home/aspect/Tcl/Env/src/tcl/unix/tclAppInit.c:84
(gdb) quit
