[Kst] [Bug 232159] deadlock associated with lowpass filter dialog?

[Andrew Walker]

https://bugs.kde.org/show_bug.cgi?id=232159


Andrew Walker <arwalker at sumusltd.com> changed:

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |NEW
                 CC|                            |arwalker at sumusltd.com
     Ever Confirmed|0                           |1




--- Comment #1 from Andrew Walker <arwalker sumusltd com>  2010-03-26 18:39:36 ---
This is indeed a classic deadlock.

The update thread, in updating a curve, holds a writeLock on the input vectors
to the curve, and attempts to get a writeLock on the filter output.

The user-interface thread, in updating the data manager, holds a readLock on
the filter, and attempts to get a readLock on the output vector of the filter
(also the input vector to the curve).

This could happen with any of the plugins and is not specific to the filter
used.

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