https://bugs.kde.org/show_bug.cgi?id=484988
--- Comment #8 from Mike Lothian <m...@fireburn.co.uk> ---
I'm still seeing a failure on master:
(lldb) run
Process 1098029 launched: '/usr/bin/kdiff3' (x86_64)
org.kde.kdiff3: Loading A: "/home/fireburn/dmesg.axion"
org.kde.kdiff3: Loading B: "/home/fireburn/dmesg.txt"
org.kde.kdiff3: Diff: A <-> B
org.kde.kdiff3: Linediff: A <-> B
org.kde.kdiff3: Enter: calcDiff3LineListUsingAB
org.kde.kdiff3: Leave: calcDiff3LineListUsingAB
terminate called after throwing an instance of 'std::system_error'
what(): converted signed value too small: negative overflow error
Process 1098029 stopped
* thread #1, name = 'kdiff3', stop reason = signal SIGABRT
frame #0: 0x00007ffff62bf86c libc.so.6`___lldb_unnamed_symbol3697 + 268
libc.so.6`___lldb_unnamed_symbol3697:
-> 0x7ffff62bf86c <+268>: movl %eax, %ebx
0x7ffff62bf86e <+270>: negl %ebx
0x7ffff62bf870 <+272>: cmpl $0xfffff000, %eax ; imm = 0xFFFFF000
0x7ffff62bf875 <+277>: movl $0x0, %eax
(lldb) bt
* thread #1, name = 'kdiff3', stop reason = signal SIGABRT
* frame #0: 0x00007ffff62bf86c libc.so.6`___lldb_unnamed_symbol3697 + 268
frame #1: 0x00007ffff626be66 libc.so.6`raise + 22
frame #2: 0x00007ffff62538b7 libc.so.6`abort + 215
frame #3: 0x00007ffff58a4c7b libstdc++.so.6`___lldb_unnamed_symbol7333 + 98
frame #4: 0x00007ffff58b8eec libstdc++.so.6`___lldb_unnamed_symbol7788 + 12
frame #5: 0x00007ffff58b8f57 libstdc++.so.6`std::terminate() + 23
frame #6: 0x000055555560fabf kdiff3`__clang_call_terminate + 15
frame #7: 0x000055555567559f kdiff3`getBestFirstLine(LineRef, int, LineRef,
int) [inlined] LineRef::operator=(this=<unavailable>, lineIn=<unavailable>) at
LineRef.h:51:21
frame #8: 0x0000555555675581 kdiff3`getBestFirstLine(line=LineRef @ scalar,
nofLines=1559, firstLine=LineRef @ scalar, visibleLines=14) at
difftextwindow.cpp:0
frame #9: 0x00005555556756ab
kdiff3`DiffTextWindow::setFastSelectorRange(this=0x000055555615a6c0,
line1=<unavailable>, nofLines=<unavailable>) at difftextwindow.cpp:595:32
frame #10: 0x00007ffff60dda8f libQt6Core.so.6`___lldb_unnamed_symbol13786 +
1279
frame #11: 0x000055555560ccd1
kdiff3`MergeResultWindow::setFastSelectorRange(this=<unavailable>, _t1=LineRef
@ 0x00007fffffffc46c, _t2=1559) at moc_mergeresultwindow.cpp:574:5
frame #12: 0x00005555556ad3f3
kdiff3`MergeResultWindow::setFastSelector(this=0x0000555555c804c0,
i=std::__cxx11::list<MergeBlock, std::allocator<MergeBlock> >::iterator @
scalar) at mergeresultwindow.cpp:788:12
frame #13: 0x00005555556a63a2 kdiff3`MergeResultWindow::merge(bool,
e_SrcSelector, bool, bool) [inlined]
MergeResultWindow::go(this=0x0000555555c804c0, eDir=eUp, eEndPoint=eEnd) at
mergeresultwindow.cpp:548:5
frame #14: 0x00005555556a6364 kdiff3`MergeResultWindow::merge(bool,
e_SrcSelector, bool, bool) [inlined]
MergeResultWindow::slotGoTop(this=0x0000555555c804c0) at
mergeresultwindow.cpp:658:5
frame #15: 0x00005555556a6364
kdiff3`MergeResultWindow::merge(this=0x0000555555c804c0,
bAutoSolve=<unavailable>, defaultSelector=<unavailable>, bConflictsOnly=false,
bWhiteSpaceOnly=<unavailable>) at mergeresultwindow.cpp:397:5
frame #16: 0x00005555556a5d8c
kdiff3`MergeResultWindow::init(this=0x0000555555c804c0,
pLineDataA=<unavailable>, sizeA=LineRef @ 0x00007fffffffc5c8,
pLineDataB=<unavailable>, sizeB=LineRef @ 0x00007fffffffc5cc,
pLineDataC=<unavailable>, sizeC=LineRef @ 0x00007fffffffc620,
pDiff3LineList=0x000055555597a388, pTotalDiffStatus=0x0000555555a9ac50,
bAutoSolve=true) at mergeresultwindow.cpp:132:5
frame #17: 0x000055555565f1b0
kdiff3`KDiff3App::mainInit(this=0x0000555555979fe0,
pTotalDiffStatus=<unavailable>, inFlags=<unavailable>) at pdiff.cpp:377:27
frame #18: 0x000055555563193c kdiff3`KDiff3App::completeInit(QString
const&, QString const&, QString const&) [inlined]
KDiff3App::doFileCompare(this=0x0000555555979fe0) at kdiff3.cpp:595:5
frame #19: 0x0000555555631908
kdiff3`KDiff3App::completeInit(this=0x0000555555979fe0, fn1=<unavailable>,
fn2=<unavailable>, fn3=<unavailable>) at kdiff3.cpp:646:13
frame #20: 0x000055555561d3e0
kdiff3`KDiff3Shell::KDiff3Shell(this=0x0000555555a07850,
fn1=0x00007fffffffcb68, fn2=0x00007fffffffcb50, fn3=0x00007fffffffcb38) at
kdiff3_shell.cpp:39:15
frame #21: 0x000055555561c629 kdiff3`QtPrivate::QCallableObject<main::$_0,
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) [inlined] main::$_0::operator()(this=0x0000555555982d30) const
at main.cpp:192:21
frame #22: 0x000055555561c587 kdiff3`QtPrivate::QCallableObject<main::$_0,
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) [inlined] QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void, main::$_0>::call(f=0x0000555555982d30,
arg=<unavailable>) at qobjectdefs_impl.h:137:13
frame #23: 0x000055555561c587 kdiff3`QtPrivate::QCallableObject<main::$_0,
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) [inlined] void
QtPrivate::FunctorCallable<main::$_0>::call<QtPrivate::List<>,
void>(f=0x0000555555982d30, (null)=<unavailable>, arg=<unavailable>) at
qobjectdefs_impl.h:345:13
frame #24: 0x000055555561c587 kdiff3`QtPrivate::QCallableObject<main::$_0,
QtPrivate::List<>, void>::impl(which=<unavailable>, this_=0x0000555555982d20,
r=<unavailable>, a=<unavailable>, ret=<unavailable>) at
qobjectdefs_impl.h:555:21
frame #25: 0x00007ffff6084f6c libQt6Core.so.6`QObject::event(QEvent*) + 636
frame #26: 0x00007ffff6714d47
libQt6Gui.so.6`QGuiApplication::event(QEvent*) + 711
frame #27: 0x00007ffff768d9a8
libQt6Widgets.so.6`QApplication::event(QEvent*) + 520
frame #28: 0x00007ffff769061e
libQt6Widgets.so.6`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 302
frame #29: 0x00007ffff76920ae
libQt6Widgets.so.6`QApplication::notify(QObject*, QEvent*) + 494
frame #30: 0x00007ffff6133f57
libQt6Core.so.6`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 183
frame #31: 0x00007ffff613572e
libQt6Core.so.6`QCoreApplicationPrivate::sendPostedEvents(QObject*, int,
QThreadData*) + 526
frame #32: 0x00007ffff5ecb2d7 libQt6Core.so.6`___lldb_unnamed_symbol10036 +
23
frame #33: 0x00007ffff4fa7602 libglib-2.0.so.0`___lldb_unnamed_symbol2489 +
482
frame #34: 0x00007ffff5014588 libglib-2.0.so.0`___lldb_unnamed_symbol2747 +
600
frame #35: 0x00007ffff4fa68ac libglib-2.0.so.0`g_main_context_iteration +
44
frame #36: 0x00007ffff5eb61c4
libQt6Core.so.6`QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
+ 100
frame #37: 0x00007ffff6134ba6
libQt6Core.so.6`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 550
frame #38: 0x00007ffff61347e8 libQt6Core.so.6`QCoreApplication::exec() +
136
frame #39: 0x000055555561aa89 kdiff3`main(argc=3, argv=<unavailable>) at
main.cpp:195:21
frame #40: 0x00007ffff6255306 libc.so.6`___lldb_unnamed_symbol3281 + 134
frame #41: 0x00007ffff62553b9 libc.so.6`__libc_start_main + 137
frame #42: 0x00005555556083e5 kdiff3`_start + 37
(lldb)
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