Details
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Bug
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Resolution: Done
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P1: Critical
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6.1.0
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None
Description
With the introduction of Qt 6 we encountered a memory leak which seems to be caused by sending queued signals.
I attached an example project along with a heaptrack summary that points to some QByteArray reallocation when queued_activate for a signal is called.
The sample project is quite simple: A producer generates some signals in a thread. These signals are connected as Qt::QueuedConnections to a slot of an object in the main thread.
If I do something wrong in connection the thread please let me know
Btw, I made the same test with Qt 5.15 and the memory usage was stable.
Attachments
Issue Links
- relates to
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QTBUG-93019 [REG 5.15-6.0] QList/QVector regressions
- Open
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QTBUG-92912 Recursive QTimer:singleshot causes memory leak.
- Open
For Gerrit Dashboard: QTBUG-91801 | ||||||
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# | Subject | Branch | Project | Status | CR | V |
344081,3 | QPostEventList: port to std::vector | dev | qt/qtbase | Status: NEW | -1 | 0 |