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  1. Qt
  2. QTBUG-52401

ASSERT: "bytes <= bufferSize" in file tools\qringbuffer.cpp, line 74 triggered by Qt Creator

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.6.1
    • 5.6.1, 5.7.0 Alpha
    • Core: Containers and Algorithms
    • None
    • Windows 10, MSVC2015 Update 2 64 bit
    • a4d26cf522b966056e47e47a004b7e4d668e3a2d, c09008d27ca1456fb53a3fc9c71d5f88b1081221

    Description

      When running Qt Creator 4.0 at b7d8d9ba3a4705d845aac86400e2538f93c94b39 against Qt 5.7 qtbase at f68c62c 216f57e , the (notoriously flaky) communication between the Code model and its clang backends frequently triggers:

      ASSERT: "bytes <= bufferSize" in file tools\qringbuffer.cpp, line 74
 Debug Error!
 
 Program: D:\dev\5-vs15-57\qt-creator40\bin\Qt5Cored.dll
 Module: 5.7.0
 File: global\qglobal.cpp
 Line: 3059
 
 ASSERT: "bytes <= bufferSize" in file tools\qringbuffer.cpp, line 74

       QRingBuffer::free(qint64 bytes):
		bytes	701	int64
		this	0x2fec5f773c0	QRingBuffer *
			basicBlockSize	4096	int
			bufferSize	252	int64
			buffers	<1 items>	QList<QByteArray>
			head	699	int
			tail	951	int
			tailBuffer	0	int

      Assert was introduced by "QRingBuffer: avoid allocation in c'tor" c3d8ab78b8bc63cc15b56719fc7bf2ec42c800de https://codereview.qt-project.org/#/c/115719/

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          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTCREATORBUG-16056 Qt Quick Designer does not work with QLocalSocket from Qt 5.6.1

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTCREATORBUG-16007 4.0/Windows (Self built Creator): No code completion from Clang

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
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              alex1973tr Alex Trotsenko
              kleint Friedemann Kleint
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                Created:
                Updated:
                Resolved:

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