"Death due to nil" (Browser / Last Words / TTF?)

[HubertHuckevoll]

Death due to nil
_ConvertKernPairs+806: LES BX, DWORD 6[BP]
Execution died in patient truetype:
_ConvertKernPairs+806: LES BX, DWORD 6[BP]
*** No explanation available ***
Interrupt 3: Breakpoint trap
Stopped in FatalError, line 870, "/home/konstantinmeyer/pcgeos/Library/Kernel/Boot/bootBoot.asm"
push bp, si, ds, ax
done
GEOS Attached
Stopped in FatalError, line 870, "/home/konstantinmeyer/pcgeos/Library/Kernel/Boot/bootBoot.asm"
push bp, si, ds, ax
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(lastword:1) 1 => bt
1: near FatalError(), bootBoot.asm:870
2: far CFATALERROR(), bootBoot.asm:833

• 3: far _ConvertKernPairs(trueTypeVars = 9d31h:0000h, fontBuf = 9b84h:0000h, i = b858h), ttwidths.c:526
  5: far TRUETYPE_GEN_WIDTHS(varBlock = 2480h, windowMatrix = null, stylesToImplement = \000, firstEntry = dbeah:0cb9h, headerEntry = dbeah:0cb1h, fontInfo = dbeah:0c72h, weight = d, width = d, pointSize = 0008h:0000
  h, fontMatrix = 8a33h:0016h, fontHandle = abc0h), ttwidths.c:226
  7: far TrueTypeGenWidths(), truetypeWidths.asm:128
  8: far ProcCallModuleRoutine(), geodesResource.asm:676
  9: far TrueTypeStrategy(), mainManager.asm:201
  10: far GrCallFontDriverID(), graphicsChars.asm:1404
  11: near CheckCallDriver(), graphicsChars.asm:909
  12: near ReallocFont(), graphicsChars.asm:1107
  13: near DoFontLock(), graphicsChars.asm:1715
  14: near NearLockFont(), graphicsChars.asm:1564
  15: far FontDrLockFont(), graphicsChars.asm:1523
  16: far GrGetTextBoundsReal(), graphicsTextObscure.asm:1060
  17: far GrGetTextBounds(), graphicsTextObscure.asm:1013
  19: far BoundText(), graphicsString.asm:5789
  20: far PETextField(), graphicsString.asm:5619
  21: far ProcCallModuleRoutine(), geodesResource.asm:676
  22: far PlayElement(), graphicsString.asm:412
  24: far GrGetGStringBoundsDWord(), graphicsString.asm:2430
  25: far GrGetGStringBounds(), graphicsString.asm:2590
  27: far GRGETGSTRINGBOUNDS(bounds = 4be2h:0772h, flags = 0h, gstate = null, gstring = ^hab00h (at 0000h)), graphicsGStringC.asm:476
  29: far _LWComputeGraphicBounds(width = 4be2h:07ach, height = 4be2h:07b0h), lastwords.goc:728
  30: far _LWInit(), lastwords.goc:289
  31: far LWAPPLICATIONSAVER_APP_SET_WIN(gstateHandle = 8f00h, windowHandle = 8d90h), lastwords.goc:213
  33: call ^l5100h:0020h{_LWApplicationClass}MSG_SAVER_APP_SET_WIN(4d70h 8d90h 8f00h) (@1, ^l5100h:0020h)
  33: near ObjCallMethodTable(), objectClass.asm:1700
  34: near CallMethodCommon(), objectClass.asm:713
  35: far ObjCallInstanceNoLock(), objectClass.asm:368
  36: far SAStart(), saverApplication.asm:923
  38: call ^l5100h:0020h{_LWApplicationClass}MSG_SAVER_APP_START(0000h 26bdh 0384h) (@2, ^l5100h:0020h)
  38: near ObjCallMethodTable(), objectClass.asm:1311
  39: near ObjCallMethodTableSaveBXSI(), objectClass.asm:752
  40: far SendMessage(), objectClass.asm:175
  41: far ObjMessage(), geodesEvent.asm:1796
  42: far MessageDispatchDefaultCallBack(), geodesEvent.asm:1432
  43: far MessageProcess(callBack = 1587h:14e3h (geos::kcode::MessageDispatchDefaultCallBack)), geodesEvent.asm:1334
  44: far MessageDispatch(), geodesEvent.asm:1134
  (lastword:1) 2 =>

[jirkakunze]

This issue should also be addressed by the changes in the ttf-driver-fixes-and-optimizations branch.

It should be tested again once the corresponding pull request has been merged into master.