[Kst] [Bug 104936] kst eventually crashes when plotting live data from dirfile with time interpretation.

[D.V.Wiebe]

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http://bugs.kde.org/show_bug.cgi?id=104936         




------- Additional Comments From dwiebe physics utoronto ca  2005-05-05 16:03 -------
It doesn't appear to be connected to interpreting the field as a time.  Rather it appears to have something to do with interpreting the LINCOM.  The crash occurs even when not interpreting the X axis as a time.  The offending field is defined as 

Time LINCOM 2 cpu_time 1.000000000000e+00 0.000000000000e+00 cpu_usec         1.000000000000e-06 0.000000000000e+00

where cpu_time and cpu_usec are the seconds and microseconds returned by gettimeofday(2).

Backtrace for kst 1.1.0 from yesterday's anonCVS:

*** glibc detected *** free(): invalid next size (fast): 0x086229f0 ***

Program received signal SIGABRT, Aborted.
[Switching to Thread 16386 (LWP 17768)]
0xb6596ef1 in kill () from /lib/libc.so.6
(gdb) bt
#0  0xb6596ef1 in kill () from /lib/libc.so.6
#1  0xb6791bb1 in pthread_kill () from /lib/libpthread.so.0
#2  0xb6791f2b in raise () from /lib/libpthread.so.0
#3  0xb6596b24 in raise () from /lib/libc.so.6
#4  0xb65983fd in abort () from /lib/libc.so.6
#5  0xb65c976c in __libc_message () from /lib/libc.so.6
#6  0xb65d2066 in malloc_printerr () from /lib/libc.so.6
#7  0xb65d0d2f in _int_free () from /lib/libc.so.6
#8  0xb65cf94f in free () from /lib/libc.so.6
#9  0xb6295284 in GetFormat () from /opt/kde/lib/kde3/kstdata_dirfile.so
#10 0xb6295cfa in MakeDummyLinterp () from /opt/kde/lib/kde3/kstdata_dirfile.so
#11 0xb6295ec5 in GetData () from /opt/kde/lib/kde3/kstdata_dirfile.so
#12 0xb629232c in DirFileSource::readField ()
   from /opt/kde/lib/kde3/kstdata_dirfile.so
#13 0xb62b90f9 in IndirectSource::readField ()
   from /opt/kde/lib/kde3/kstdata_indirect.so
#14 0xb7c89f06 in KstRVector::doUpdate () from /opt/kde/lib/libkstmath.so.1
#15 0xb7c898cf in KstRVector::update () from /opt/kde/lib/libkstmath.so.1
#16 0xb7c5df3e in KstVCurve::update () from /opt/kde/lib/libkstmath.so.1
#17 0xb7f1d4bc in UpdateThread::doUpdates () from /opt/kde/lib/libkstapp.so.1
#18 0xb7f1d126 in UpdateThread::run () from /opt/kde/lib/libkstapp.so.1
#19 0xb6cde02a in QThreadInstance::start () from /usr/lib/qt/lib/libqt-mt.so.3
#20 0xb678f54e in pthread_start_thread () from /lib/libpthread.so.0
#21 0xb678f5df in pthread_start_thread_event () from /lib/libpthread.so.0
#22 0xb6627b8a in clone () from /lib/libc.so.6