Crash (segfault) when using empty directory as resourcePath

[mixxxbot]

Reported by: ehmic
Date: 2021-07-03T11:08:41Z
Status: Fix Released
Importance: Low
Launchpad Issue: lp1934560
Attachments: gdb.txt

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Mixxx crashes when 'resourcePath' points to either an empty, or a non existing directory.
("mixxx" received signal SIGSEGV, Segmentation fault).

The 'Mixxx - Critical error' popup window appears correctly, stating that the skin directory is missing. After clicking 'OK' Mixxx tries to open, but crashes.
Maybe a better default behaviour would be to stop Mixxx when a critical error appears?

[mixxxbot]

Commented by: ehmic
Date: 2021-07-03T11:12:20Z
Attachments: gdb.txt

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Here is the gdb output.

[mixxxbot]

Commented by: Holzhaus
Date: 2021-07-03T11:25:52Z

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What Mixxx version does this affect? I cannot tell from the log (we should add an Info message).

Please copy the version (and git version string) from the about dialog.

[mixxxbot]

Commented by: ehmic
Date: 2021-07-03T12:57:00Z

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Ah sorry, forgot to mention...

Version is: 2.3.0-8-gd3052f4fc5

[mixxxbot]

Commented by: uklotzde
Date: 2021-07-29T11:58:46Z

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main terminates regularly without a crash after a bunch of warnings and debug assertions:

warning [Main] Failed to load default skin "LateNight"
critical [Main] DEBUG ASSERT: "m_pSkin != nullptr" in function DlgPrefInterface::DlgPrefInterface(QWidget*, std::shared_ptr<mixxx::ScreensaverManager>, std::shared_ptr<mixxx::skin::SkinLoader>, UserSettingsPointer) at ../src/preferences/dialog/dlgprefinterface.cpp:48

critical [Main] "Skin directory does not exist: /tmp/mixxx_empty_res/skins"
critical [Main] DEBUG ASSERT: "pSkin && pSkin->isValid()" in function mixxx::skin::SkinPointer mixxx::skin::SkinLoader::getConfiguredSkin() const at ../src/skin/skinloader.cpp:122

warning [Main] Failed to load default skin "LateNight"
critical [Main] DEBUG ASSERT: "pSkin != nullptr && pSkin->isValid()" in function QWidget* mixxx::skin::SkinLoader::loadConfiguredSkin(QWidget*, QSet<ControlObject*>*, mixxx::CoreServices*) at ../src/skin/skinloader.cpp:145

[mixxxbot]

Commented by: uklotzde
Date: 2021-07-29T12:49:46Z

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2.3 crashes after an assertion:

Debug [Main]: =====================================
Debug [Main]: 0 ms stopping pending Library tasks
Critical [Main]: DEBUG ASSERT: "m_pScanner" in function void TrackCollectionManager::stopLibraryScan() at ../src/library/trackcollectionmanager.cpp:172

Thread 1 "mixxx" received signal SIGSEGV, Segmentation fault.

[mixxxbot]

Commented by: uklotzde
Date: 2021-07-29T13:48:59Z

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Probably difficult to fix for 2.3 and not worth the effort.

[mixxxbot]

Commented by: daschuer
Date: 2021-12-21T11:28:22Z

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#4575

[mixxxbot]

Issue closed with status Fix Released.