https://bugs.kde.org/show_bug.cgi?id=427147
Bug ID: 427147
Summary: Often the background parser causes crashes
Product: kdevelop
Version: 5.5.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Language Support: CPP (Clang-based)
Assignee: kdevelop-bugs-n...@kde.org
Reporter: mattia.basag...@gmail.com
Target Milestone: ---
SUMMARY
Sometimes KDevelop enters a state where it crashes within a few seconds of
opening a project.
This seems to happen quite often when I'm refactoring large parts of C++ code,
so I think it's related to the C++ background parser.
Clearing the cache doesn't help, I have to use other editors to finish my code
changes before using KDevelop again.
In the console KDevelop prints this before crashing:
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = kdevelop path = /usr/bin pid = 24966
KCrash: Arguments: /usr/bin/kdevelop
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from
kdeinit
sock_file=/run/user/1000/kdeinit5__0
QSocketNotifier: Invalid socket 6 and type 'Read', disabling...
QSocketNotifier: Invalid socket 21 and type 'Read', disabling...
QSocketNotifier: Invalid socket 29 and type 'Read', disabling...
QSocketNotifier: Invalid socket 32 and type 'Read', disabling...
QSocketNotifier: Invalid socket 10 and type 'Read', disabling...
QSocketNotifier: Invalid socket 80 and type 'Read', disabling...
QSocketNotifier: Invalid socket 75 and type 'Exception', disabling...
QSocketNotifier: Invalid socket 24 and type 'Read', disabling...
QSocketNotifier: Invalid socket 34 and type 'Read', disabling...
QSocketNotifier: Invalid socket 65 and type 'Read', disabling...
QSocketNotifier: Invalid socket 77 and type 'Read', disabling...
QSocketNotifier: Invalid socket 72 and type 'Read', disabling...
QSocketNotifier: Invalid socket 41 and type 'Read', disabling...
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 37 and type 'Read', disabling...
QSocketNotifier: Invalid socket 9 and type 'Read', disabling...
kdevelop.plugins.python.parser: Discarding parts of the code to be parsed
because of previous errors
SyntaxError: unmatched ']' (<kdev-editor-contents>, line 1)
---- Parsing FAILED ----
LIBCLANG FATAL ERROR: IO failure on output stream: Bad file descriptor
Unable to start Dr. Konqi
Re-raising signal for core dump handling.
Aborted (core dumped)
STEPS TO REPRODUCE
It's hard to repro, I can provide a tarball of the project that last happened
to, but it's too large to attach here.
When opening that project in a new KDevelop session it takes longer to crash, I
assume it's because the parser needs to reach the point where it crashes.
OBSERVED RESULT
KDevelop crashes after a few seconds of opening the project
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.4.0-48-generic
OS Type: 64-bit
Processors: 8 × AMD FX(tm)-8320 Eight-Core Processor
Memory: 23.5 GiB of RAM
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