Details
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Type:
Bug
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Status: Closed
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Priority:
P1: Critical
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Resolution: Done
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Affects Version/s: 6.1.0
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Component/s: Core: Event loop
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Labels:None
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Platform/s:
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-92912 Recursive QTimer:singleshot causes memory leak.
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- Open
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QTBUG-93019 [REG 5.15-6.0] QList/QVector regressions
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- Open
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