#1301 TXS crash during launching and exiting

[Anonymous]

I getting strange message. Some times it appear at the launching, very often it appear after pressing "exit" button.

I observed this behavior with TXS 2.9.2, 2.9.4 (all portable versions)

The error-code some times equal to 6eafab, 75729b60, 89cfa8, 4cd496

After pressing "kill":

System is Win7x64.
With WinXPx86 TXS works good (another my computer).

[Tim Hoffmann]

• Is there a reproducible way to create the crash? If so, please describe it.
• There should be a texstudio_backtrace*.txt in your TEMP folder. Please provide it.

[sergiokapone]

EXCEPTION_ACCESS_VIOLATION at 68a6cdcd (TXS-Version 5006:b43062855b2d R )
[bt] 00548830 ??? error: 487
[bt] 68a6cdcd ZN7QObjectD1Ev+941
[bt] 006ffe08 ??? error: 487
[bt] 0070043b ??? error: 487
[bt] 005c963c ??? error: 487
[bt] 00471747 ??? error: 487
[bt] 0048adb4 ??? error: 487
[bt] 0048ae8d ??? error: 487

%-----other file--------------

EXCEPTION_ACCESS_VIOLATION at 75729b60 (TXS-Version 5006:b43062855b2d R )
[bt] 00548830 ??? error: 487
[bt] 75729b60 memcpy+592
[bt] 688f2129 ZN7QString11reallocDataEjb+121
[bt] 006faa35 ??? error: 487
[bt] 006fbd62 ??? error: 487
[bt] 006c7cc8 ??? error: 487
[bt] 004830a0 ??? error: 487
[bt] 004896cb ??? error: 487
[bt] 68a64e31 ZN11QMetaObject8activateEP7QObjectiiPPv+1745
[bt] 0076eea4 ??? error: 487
[bt] 005d11b2 ??? error: 487
[bt] 00471b00 ??? error: 487
[bt] 004831f7 ??? error: 487
[bt] 004896cb ??? error: 487
[bt] 68a64e31 ZN11QMetaObject8activateEP7QObjectiiPPv+1745
[bt] 0076eea4 ??? error: 487
[bt] 005cc035 ??? error: 487
[bt] 005cc365 ??? error: 487
[bt] 005cd2b8 ??? error: 487
[bt] 00471b00 ??? error: 487
[bt] 004831f7 ??? error: 487
[bt] 0048e9cd ??? error: 487
[bt] 0040419a ??? error: 487
[bt] 0040464b ??? error: 487
[bt] 00788b8b ??? error: 487

[Tim Hoffmann]

This seems to depend on the document you are using. The backtrace indicates that you are using a multi-file document and % TeX root = .... Can you either provide the document you were working on at that time, or even better try to reproduce the bug with the document and then reduce it to a minimal example showing the bug. Please try to find a way to reliably reproduce the crash. Without such a description we cannot track it down. Note: The startup bug seems to appear when loading a specific document by passing it as command line argument. This may include double-clicking a file in the explorer.

[Tim Hoffmann]

For internal reference, here are the resolved tracebacks:

1.

EXCEPTION_ACCESS_VIOLATION at 68a6cdcd (TXS-Version 5006:b43062855b2d R )
[bt] 00548830  debughelper.cpp:456 ??? error: 487
[bt] 68a6cdcd ZN7QObjectD1Ev+941
[bt] 006ffe08  qdocument.cpp:6210 in QDocumentPrivate::~QDocumentPrivate
[bt] 0070043b  qdocument.cpp:421 in QDocument::~QDocument
[bt] 005c963c  latexdocument.cpp:49 in LatexDocument::~LatexDocument
[bt] 00471747  texmaker.cpp:2602 in Texmaker::closeAllFiles
[bt] 0048adb4  texmaker.cpp:2620 in Texmaker::canCloseNow
[bt] 0048ae8d  texmaker.cpp:2628 in Texmaker::closeEvent

2.

EXCEPTION_ACCESS_VIOLATION at 75729b60 (TXS-Version 5006:b43062855b2d R )
[bt] 00548830  debughelper.cpp:456 ??? error: 487
[bt] 75729b60 memcpy+592
[bt] 688f2129 ZN7QString11reallocDataEjb+121
[bt] 006faa35  qdocument.cpp:8113 in QDocumentPrivate::emitContentsChange
[bt] 006fbd62  qstring.h:992 ??? error: 487
[bt] 006c7cc8  qeditor.cpp:1482 in QEditor::load
[bt] 004830a0  texmaker.cpp:1743 in Texmaker::load
[bt] 004896cb  texmaker.cpp:9390 in Texmaker::addDocToLoad
[bt] 68a64e31 ZN11QMetaObject8activateEP7QObjectiiPPv+1745
[bt] 0076eea4  moc_latexdocument.cpp:1231 ??? error: 487
[bt] 005d11b2  latexdocument.cpp:1016 in LatexDocument::patchStructure
[bt] 00471b00  texmaker.cpp:3963 in TexMaker::umdateStructure
[bt] 004831f7  texmaker.cpp:1782 in TeXmaker::load
[bt] 004896cb  texmaker.cpp:9390 in Texmaker::addDocToLoad
[bt] 68a64e31 ZN11QMetaObject8activateEP7QObjectiiPPv+1745
[bt] 0076eea4  moc_latexdocument.cpp:1231 ??? error: 487
[bt] 005cc035  latexdocument.cpp:2426 in LatexDocument::parseMagicComment
[bt] 005cc365  latexdocument.cpp:2400 in LatexDocument::addMagicComment 
[bt] 005cd2b8  latexdocument.cpp:452 in LatexDocument::patchStructure
[bt] 00471b00  texmaker.cpp:3963 in Texmaker::updateStructure
[bt] 004831f7  texmaker.cpp:1782 in Texmaker::load
[bt] 0048e9cd  texmaker.cpp:5955 in Texmaker::executeCommandLine
[bt] 0040419a  main.cpp:94 ??? error: 487
[bt] 0040464b  main.cpp:176 ??? error: 487
[bt] 00788b8b  moc_quazipfile.cpp:0 ??? error: 487

[sergiokapone]

Unfortunately (or for luck), after updating windows 7, the bug is lost.

[Tim Hoffmann]

I doubt, that the update itself fixed the bug. It's probably other circumstances that changed as well (possibly unnoticed).

Since we cannot reproduce the bug, I'll mark this as "works-for-me". You may come back should the bug reappear.