In Settings > Composer > External Editor, set your editor some command with a closing single quote: foo' Then, every time the composer opens, KMail will crash. In my case, KMail decided it wanted to re-open the composer on startup, so it would crash immediately on startup - I had to edit the configuration file to get it back. (If you're wondering how I came across this, I was trying to change my editor from: 'konsole --nofork -e vim "+set ft=mail" -f %f' to gvim --nofork "+set ft=mail" -f %f ....and forgot to remove the closing ' mark). Reproducible: Always
Backtrace ?
(gdb) bt #0 0x00007f52594faf3d in KProcess::setProgram(QStringList const&) () from /usr/lib/libkdecore.so.5 #1 0x00007f52594fb2e5 in KProcess::operator<<(QStringList const&) () from /usr/lib/libkdecore.so.5 #2 0x00007f5253227544 in ?? () from /usr/lib/libmessagecomposer.so.4 #3 0x00007f52589efd9c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4 #4 0x00007f525322a5e8 in MessageComposer::SignatureController::insertSignatureHelper(KPIMIdentities::Signature::Placement) () from /usr/lib/libmessagecomposer.so.4 #5 0x00007f52589f4491 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4 #6 0x00007f5257d2d9ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #7 0x00007f5257d34408 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #8 0x00007f5259b101ea in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5 #9 0x00007f52589db28d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #10 0x00007f52589de651 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4 #11 0x00007f5258a0a233 in ?? () from /usr/lib/libQtCore.so.4 #12 0x00007f524edafa0d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #13 0x00007f524edafcf8 in ?? () from /usr/lib/libglib-2.0.so.0 #14 0x00007f524edafdac in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #15 0x00007f5258a0a37d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #16 0x00007f5257dd13a6 in ?? () from /usr/lib/libQtGui.so.4 #17 0x00007f52589d9de1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #18 0x00007f52589da145 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #19 0x00007f52589df6e9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4 #20 0x0000000000402e02 in ?? () #21 0x00007f52572be040 in __libc_start_main () from /usr/lib/libc.so.6 #22 0x00000000004032db in _start ()
I confirm it :)
Git commit 583b23f8b2b676c64ac0ef4dc6becfb7dea987fa by Montel Laurent. Committed on 04/02/2015 at 08:08. Pushed by mlaurent into branch 'KDE/4.14'. Fix Bug 343745 - Crash with an invalid external editor involving unterminated quotes FIXED-IN: 14.12.3 M +14 -3 messagecomposer/composer/kmeditor.cpp http://commits.kde.org/kdepim/583b23f8b2b676c64ac0ef4dc6becfb7dea987fa
Thank you!