[Akonadi] [Bug 442292] 21.08.1: test suite is failing

[kloczek]

https://bugs.kde.org/show_bug.cgi?id=442292

--- Comment #8 from kloczek <kloczko.tomasz at gmail.com> ---
(In reply to Aaron Williams from comment #5)
> I am hitting this bug. The last time I debugged this it turned out to be due
> to multiple threads attempting to do the same thing at the same time. Two
> threads attempt to move Akonadi.error to Akonadi.error.old at the same time
> and this fails. The code needs to be fixed to handle this by either adding a
> lock or not failing.
> The problem is in akInit() and it is caused by multiple instances attempting
> to start at the same time.
> I.e. with two processes:
> P1 sees old file exists
> P2 sees old file exists
> P1 deletes old file
> P2 attempts to delete old file, fails due to P1.

IIRC in cmake it is possible to specyfy that some some units must be
serialised.

--- Comment #9 from kloczek <kloczko.tomasz at gmail.com> ---
(In reply to Aaron Williams from comment #5)
> I am hitting this bug. The last time I debugged this it turned out to be due
> to multiple threads attempting to do the same thing at the same time. Two
> threads attempt to move Akonadi.error to Akonadi.error.old at the same time
> and this fails. The code needs to be fixed to handle this by either adding a
> lock or not failing.
> The problem is in akInit() and it is caused by multiple instances attempting
> to start at the same time.
> I.e. with two processes:
> P1 sees old file exists
> P2 sees old file exists
> P1 deletes old file
> P2 attempts to delete old file, fails due to P1.

IIRC in cmake it is possible to specyfy that some some units must be
serialised.

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