Hi Michael, sorry I was out the last few hours.
This is the same seg-fault I have. by compiling with gcc -g will get rid
of it. It is clearly some memory violation caused by
compiler optimizations.
As for Chris, I think he must have some problem with e-map as his program
simply stopped reading any epics events which is likely at TBLRaw level.
I still have not get a hang on the segfault in fit().
Chi
On Thu, 27 May 2004, Michael Kohl wrote:
> Chi,
>
> here's the screen output of the seg fault:
>
> $ lrn 6001
>
> TOpt : reading rc file :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//blastrc
> TBLGeometry : reading geometry file :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//blast.geom
> TBLMagField : reading Magfield from file :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//bgrid2.blast
> fNrun = -1 run_no(fNrun) = 1689 strcmp = 1
> TOpt::ElectronicsMapFile() : invalid run number, fall back to
> "electronics.map"
> TBLRaw : Electronics map is for real data :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//electronics.map
> TBLWc1WireCal : Read Calibration File :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//Wire.Cal
> TBLWc1Time2Distance : t2d_GarField_6th_Order :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//WC_pos_vs_t_parameters_2
> TBLDetCalib : Calibration file :
> /scratch/bud24/kohlm/cvs_v3/Blast_Params//blast.sc_cal
>
> lrn : Counting multiples of 100 events.
>
>
> ==============================================
>
>
> TOpt::ElectronicMapFile() : query database for electronics map file name
> mysqlclient::get_account() : connecting to mysql database
> user=blast
> host=blast05.lns.mit.edu
> TBLRaw : Electronics map is for real data :
>
> /home/daq/blast/pro2004/elog/archive/Electronics//Electronics~012.map
> TBLDetCalib : Reading MYSQL Data Base For Calibration
>
> TCodaRead : Opening data file: /net/data/4/Daq/data//pro2003-6001.dat
> Prestart at time: 27-Mar-2004 23:49:06
> Go at time: 27-Mar-2004 23:49:21
> TBLEpicsRecon : Run # 6001 ABS D spinflipper on 301
> WARNING : scaler target undefined (refilling? check visual_scaler)750
> WARNING : epics target undefined (ignore if not appearing
> continuously)1670 1 0
> WARNING : scaler target undefined (refilling? check visual_scaler)1977
> WARNING : epics target undefined (ignore if not appearing
> continuously)2285 1 0
>
> End of run on event 244265 at time: 28-Mar-2004 00:35:00
> Total run time: 2739 (secs.)
>
> TCodaRead : Opening data file: /net/data/4/Daq/data//pro2003-6001.dat
> Prestart at time: 27-Mar-2004 23:49:06
>
> TCodaRead : Opening data file: /net/data/4/Daq/data//pro2003-6001.dat
> 3
> *** Break *** segmentation violation
> Generating stack trace...
> 0x405e193f in TUnixSystem::StackTrace(void) at
> /net/data/1/Analysis/commis/root/root_v3.05.04/unix/src/TUnixSystem.cxx:1381
> from /usr/local/root/lib/libCore.so
> 0x405e00dc in TUnixSystem::DispatchSignals(ESignals) at
> /net/data/1/Analysis/commis/root/root_v3.05.04/unix/src/TUnixSystem.cxx:583
> from /usr/local/root/lib/libCore.so
> 0x405df199 in <unknown> from /usr/local/root/lib/libCore.so
> 0x405e37a3 in <unknown> from /usr/local/root/lib/libCore.so
> 0x417b1307 in <unknown> from /lib/libpthread.so.0
> 0x41c47ef8 in <unknown> from /lib/libc.so.6
> 0x40158634 in TBLNewt::fit(float, float) + 0x260 from ./libBlast.so
> 0x40157da3 in TBLNewt::Fit(int, float, float) + 0x97 from ./libBlast.so
> 0x401710e0 in TBLRecon::PreFit(TBLTrack &, float, float, int) + 0x20 from
> ./libBlast.so
> 0x4016b4db in TBLRecon::Less(TBLTrack &, TBLTrack &, float, float, int) +
> 0xe7 from ./libBlast.so
> 0x4016b9fd in TBLRecon::SelectTrack(index_set<TBLTrack *, trk_cmp> &,
> float, float, float, int, bool) + 0x19d from ./libBlast.so
> 0x4016b7f9 in TBLRecon::SelectTrack(void) + 0x45 from ./libBlast.so
> 0x4016041f in TBLRecon::ImportWcTracks(void) + 0x787 from ./libBlast.so
> 0x0804c3bc in main + 0x123c from lrn
> 0x41c371c4 in __libc_start_main + 0x90 from /lib/libc.so.6
> 0x0804b0a1 in TBLRecon::FitDump(void) const + 0x49 from lrn
> Aborted
>
>
>
>
>
> On Thu, 27 May 2004, Chi Zhang wrote:
>
> >
> > Hi, last two days, we had various report of CVS top version lrn
> > seg-faults. I v been looking into this.
> >
> > Chris reported seg-faults related to DSTHeader not initialized. I have not
> > been able to reproduce this in either my account or blast account
> > (cvs_v3/BlastLib2_dev.)
> >
> > Michael and Vitaliy reported seg-faults but did not include and detail. It
> > would be helpful to send a copy of the screen dump at seg-fault.
> >
> > I have been able to create a seg-fault in TBLNewDer::fit. However, I am
> > having a little trouble tracing it.
> >
> > This seg-fault does not happen when compiled with -g flag. So there goes
> > the chance to debug it in GDB. I inserted check points. But just to
> > disgust my stomach, it someties happens in TBLNewDer::fit and sometime
> > in TBLFitTrack::Sim.
> >
> > For the moment, try compile BlastLib with -O2 flag:
> > configure ...... --enable-debug
> > make clean
> > make
> > to see if seg-faults still. I will try to fix this problem as soon as
> > possible.
> >
> > Chi
> >
> > On Wed, 26 May 2004, vitaliy ziskin wrote:
> >
> > > Latest version of reconstruction seg faults upon a start of crunching.
> > > I ran reconstruction with track fitting turned off and it seems to work
> > > fine. So, it seems that tracking has a problem. Could someone look at
> > > it. We need the latest version of a recon to properly handle neutron
> > > timing information.
> > >
> > > Cheers, Vitaliy
> > >
> > >
> >
>
> --
>
> +-------------------------------------+--------------------------+
> | Office: | Home: |
> |-------------------------------------|--------------------------|
> | Dr. Michael Kohl | Michael Kohl |
> | Laboratory for Nuclear Science | 5 Ibbetson Street |
> | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 |
> | Middleton, MA 01949 | U.S.A. |
> | U.S.A. | |
> | - - - - - - - - - - - - | - - - - - - - - -|
> | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de |
> | Work: +1-617-253-9207 | Home: +1-617-629-3147 |
> | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 |
> | http://blast.lns.mit.edu | |
> +-------------------------------------+--------------------------+
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
This archive was generated by hypermail 2.1.2 : Mon Feb 24 2014 - 14:07:31 EST