[Kst] [Bug 135548] New: Crash when attempting to use Fit Polynomial plugin.

[Duncan Hanson]

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http://bugs.kde.org/show_bug.cgi?id=135548         
           Summary: Crash when attempting to use Fit Polynomial plugin.
           Product: kst
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kst kde org
        ReportedBy: duncan.hanson gmail com


Version:            (using KDE KDE 3.5.1)
Installed from:    Compiled From Sources
OS:                Linux

Attempting to fit the simpledata.dat file of the Kst tutorial with a second order polynomial crashes Kst.

Paste the following into a data file

-20 100
-19 90.25
-18 81
-17 72.25
-16 64
-15 56.25
-14 49
-13 42.25
-12 36
-11 30.25
-10 25
-9 20.25
-8 16
-7 12.25
-6 9
-5 6.25
-4 4
-3 2.25
-2 1
-1 0.25
0 0
1 0.25
2 1
3 2.25
4 4
5 6.25
6 9
7 12.25
8 16
9 20.25
10 25
11 30.25
12 36
13 42.25
14 49
15 56.25
16 64
17 72.25
18 81
19 90.25
20 100

... and plot it with the first column as x and the second as y. Then attempt a 2nd order polynomial fit. Kst crashes for me (and I've just make a fresh build from trunk).

No backtrace, but here's what Kst spits out before it SIGABRTs

creating KstVector Anonymous Vector 5
creating KstVector Anonymous Vector 6
kst: Update timer 200
kst: Forced update!
kst: FATAL: Thread -1212535904 tried to unlock KstRWLock 0x8f05c24 (unlocked) without holding the lock
KCrash: Application 'kst' crashing...
QSocketNotifier: invalid socket 9 and type 'Read', disabling...
QSocketNotifier: invalid socket 4 and type 'Read', disabling...
QSocketNotifier: invalid socket 7 and type 'Read', disabling...