[Users] Seg fault in CCTKi_ScheduleCallFunction: strcmp of timer->schedule_bin

Mon Mar 12 12:26:44 CDT 2012

Scott

I have not seen this error before.

Since you mention running your own thorn before this error appears,
and since things changed in Carpet recently, maybe there is a bad
interaction and something stomps on memory? You would debug this
either by disabling (parts of) your thorn to see whether this makes
the problem go away, or by using a tool such a valgrind or another
memory checker.

-erik

On Sat, Mar 10, 2012 at 12:11 PM, Scott Hawley <scott.hawley at belmont.edu> wrote:
> I'm running on NICS's nautilus, using the GNU compilers.   And I get a
> segmentation fault at Line 2767:
>
> while (timer && strcmp(timer->schedule_bin, data->schedule_bin))
>
>
>
> "timer" acquires the (bad) address 0xfefefefefefefeff, and the strcmp is
> still being executed, so it seg faults.
>
> "attribute" seems to have a valid address, and so does attribute->timers
> (0x55cb6cc0).  But attribute->timers->schedule_bin has a bad address.
> ("next" is NULL, btw.)
>
> Does anyone have a suggestion?
>
> Thanks,
> Scott
> What follows is my .par file
> The seg fault happens AFTER it exits my thorn TexMEx, btw.
>
>
>
> Cactus::cctk_run_title     = "TexMEx, FMR BBH"
> Cactus::cctk_full_warnings = yes
> Cactus::cctk_itlast = 0
>
> ActiveThorns = "AEILocalInterp ADMMass Boundary CartGrid3D CoordBase
> SymBase Slab Carpet CarpetLib CarpetInterp CarpetReduce Ca
> rpetSlab CarpetRegrid IOUtil SphericalSurface NaNChecker ADMBase
> ADMCoupling ADMMacros CoordGauge SpaceMask OutsideMask StaticC
> onformal TexMEx AHFinderDirect ADMAnalysis ADMConstraints LoopControl
> InitBase CarpetIOBasic CarpetIOScalar CarpetIOASCII Carpe
> tIOHDF5 "
>
> SphericalSurface::nsurfaces = 3
> SphericalSurface::maxntheta = 39
> SphericalSurface::maxnphi   = 76
> SphericalSurface::ntheta      [0] = 39
> SphericalSurface::nphi        [0] = 76
> SphericalSurface::nghoststheta[0] = 2
> SphericalSurface::nghostsphi  [0] = 2
> SphericalSurface::ntheta      [1] = 39
> SphericalSurface::nphi        [1] = 76
> SphericalSurface::nghoststheta[1] = 2
> SphericalSurface::nghostsphi  [1] = 2
> SphericalSurface::ntheta      [2] = 39
> SphericalSurface::nphi        [2] = 76
> SphericalSurface::nghoststheta[2] = 2
> SphericalSurface::nghostsphi  [2] = 2
>
> IO::out_dir = $parfile
>
> Carpet::domain_from_coordbase = yes
> Carpet::max_refinement_levels = 10
>
> driver::ghost_size   = 2
>
> InitBase::initial_data_setup_method="init_all_levels"
> Carpet::prolongation_order_time  = 1
> Carpet::convergence_level = 0
> ADMMacros::spatial_order = 4
> ADMBase::initial_data = "TexMEx, Kerr-Schild"
> ADMBase::lapse_timelevels = 3
> ADMBase::shift_timelevels = 3
> ADMConstraints::constraints_timelevels = 3
> ADMBase::metric_timelevels = 3
>
>
> CoordBase::domainsize = minmax
> CoordBase::spacing    = numcells
> CoordBase::xmin = -36.0
> CoordBase::ymin = -36.0
> CoordBase::zmin = -36.0
> CoordBase::xmax =  36.0
> CoordBase::ymax =  36.0
> CoordBase::zmax =  36.0
> CoordBase::ncells_x = 192
> CoordBase::ncells_y = 192
> CoordBase::ncells_z = 192
>
> CartGrid3D::type         = coordbase
> CartGrid3D::avoid_origin = no
>
> NaNChecker::check_every     = 524288
> NaNChecker::action_if_found = terminate
>
> TexMEx::boundary_type = Robin
> CarpetRegrid::refinement_levels = 5
> CarpetRegrid::refined_regions = manual-coordinate-list
> CarpetRegrid::smart_outer_boundaries = yes
>  CarpetRegrid::coordinates = "[
>
> [([-20.25,-20.25,-20.25]:[20.25,20.25,20.25]:[0.1875,0.1875,0.1875])],
>
> [([-12.375,-9.375,-9.375]:[12.375,9.375,9.375]:[0.09375,0.09375,0.09375])],
>
> [([-8.4375,-4.3125,-4.3125]:[-1.6875,4.3125,4.3125]:[0.046875,0.046875,0.04
> 6875]),
>
> ([1.6875,-4.3125,-4.3125]:[8.4375,4.3125,4.3125]:[0.046875,0.046875,0.04687
> 5])],
>
> [([-6.46875,-1.78125,-1.78125]:[-3.65625,1.78125,1.78125]:[0.0234375,0.0234
> 375,0.0234375]),
>
> ([3.65625,-1.78125,-1.78125]:[6.46875,1.78125,1.78125]:[0.0234375,0.0234375
> ,0.0234375])]
>                       ]"
> TexMEx::skip_solver = "no"
> TexMEx::bh1_m = 1.0
> TexMEx::bh1_a = 0.5
> TexMEx::bh1_theta = 0
> TexMEx::bh1_phi = 1.57
> TexMEx::bh1_x = -5.00
> TexMEx::bh1_y = 0.0
> TexMEx::bh1_z = 0.0
> TexMEx::bh1_vx = 1.0e-33
> TexMEx::bh1_vy = 0.0
> TexMEx::bh1_vz = 0.0
> TexMEx::bh2_m = 1.0
> TexMEx::bh2_a = 0.5
> TexMEx::bh2_theta = 0.0
> TexMEx::bh2_phi = 0.0
> TexMEx::bh2_x = 5.00
> TexMEx::bh2_y = 0.0
> TexMEx::bh2_z = 0.0
> TexMEx::bh2_vx = 1.0e-33
> TexMEx::bh2_vy = 0.0
> TexMEx::bh2_vz = 0.0
> TexMEx::nxyz_c = 25
> TexMEx::cgtol = 1e-8
> TexMEx::nlevels = 8
> TexMEx::r_mask = 0.9
> TexMEx::nvcycle = 4
> TexMEx::preswp = 3
> TexMEx::pstswp = 3
> TexMEx::use_esr = "no"
> TexMEx::sor_factor = 1.7
> TexMEx::gft_trace = "no"
> TexMEx::alt_ib = 0
> TexMEx::use_fma = 0
> TexMEx::admmass_box = "[-30,-30,-30]:[30,30,30]"
>
> ADMMass::ADMMass_surface_distance[0] = 30
> ADMMass::ADMMass_volume_radius[0] = 30
> ADMMass::ADMMass_Excise_Horizons = "yes"
> ADMMass::ADMMass_Debug = "yes"
>
> SpaceMask::use_mask = yes
>
>
> AHFinderDirect::find_every = 1
> AHFinderDirect::geometry_interpolator_name = "Lagrange polynomial
> interpolation"
> AHFinderDirect::geometry_interpolator_pars = "order=4"
> AHFinderDirect::surface_interpolator_name  = "Lagrange polynomial
> interpolation"
> AHFinderDirect::surface_interpolator_pars  = "order=4"
> AHFinderDirect::N_horizons = 2
> AHFinderDirect::origin_x                                 [1] =  -5.0
> AHFinderDirect::initial_guess__coord_sphere__x_center    [1] =  -5.0
> AHFinderDirect::initial_guess__coord_sphere__radius      [1] =  2.0
> AHFinderDirect::which_surface_to_store_info              [1] = 0
> AHFinderDirect::origin_x                                 [2] =  5.0
> AHFinderDirect::initial_guess__coord_sphere__x_center    [2] =  5.0
> AHFinderDirect::initial_guess__coord_sphere__radius      [2] =  2.0
> AHFinderDirect::which_surface_to_store_info              [2] = 1
> AHFinderDirect::set_mask_for_individual_horizon          [2] = no
>
>
>
>
>
>
>
>
>
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-- 
Erik Schnetter <schnetter at cct.lsu.edu>
http://www.perimeterinstitute.ca/personal/eschnetter/