On Wed, Dec 02, 2009 at 11:24:56AM +0100, Johannes Ring wrote: > On Wed, Dec 2, 2009 at 11:02 AM, Johannes Ring <joha...@simula.no> wrote: > > On Wed, Dec 2, 2009 at 10:58 AM, Anders Logg <l...@simula.no> wrote: > >> On Wed, Dec 02, 2009 at 10:24:18AM +0100, Johannes Ring wrote: > >>> Hi, > >>> > >>> Someone pushed the Force Build button on the winxp-mingw32 slave. I > >>> don't see a good reason for this since the demo.log shows it quite > >>> clearly why it fails: > >>> > >>> http://fenics.org:8080/builders/dolfin-winxp-mingw32/builds/11/steps/dolfin%20check/logs/demo.log > >>> > >>> The problem is the same as the hardy-i386 slave reports, that is, the > >>> following two demos exits with a segmentation fault: > >>> > >>> demo\pde\stokes\stabilized\cpp > >>> demo\pde\stokes\taylor-hood\cpp > >> > >> I can't figure out why these fail. Valgrind does not complain on my > >> machine. Does anyone have a 32 bit system to test on? > > > > Yes, I have my laptop. I will try to do some debugging. > > I got a segfault too. Here is the output from running > demo\pde\stokes\stabilized\cpp in gdb: > > joha...@simula-x61:cpp$ gdb ./demo > GNU gdb 6.8-debian > Copyright (C) 2008 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "i486-linux-gnu"... > (gdb) run > Starting program: > /home/johannr/src/bzr/dolfin/demo/pde/stokes/stabilized/cpp/demo > [Thread debugging using libthread_db enabled] > [New Thread 0xb536a6c0 (LWP 21306)] > Solving linear variational problem > Matrix of size 8604 x 8604 has 174636 nonzero entries. > Applying boundary conditions to linear system. > Applying boundary conditions to linear system. > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0xb536a6c0 (LWP 21306)] > 0xb7c265c8 in dolfin::Data::clear () from > /home/johannr/src/bzr/dolfin/local/lib/libdolfin.so.0 > Current language: auto; currently asm > (gdb) where > #0 0xb7c265c8 in dolfin::Data::clear () from
The line x.resize(0); in the function Data::clear() in dolfin/function/Data.cpp looks suspicious. Could you try replacing that line with x.clear(); and see if that helps? Garth, is there a reason for using x.resize(0) instead of x.clear()? -- Anders > /home/johannr/src/bzr/dolfin/local/lib/libdolfin.so.0 > #1 0xb7ca13aa in dolfin::GenericFunction::restrict_as_ufc_function > (this=0xbfccd268, w=0x82ada80, > eleme...@0x80f64a8, dolfin_ce...@0xbfccc8f8, ufc_ce...@0xbfccc88c, > local_facet=2) > at dolfin/function/GenericFunction.cpp:62 > #2 0xb7c8b780 in dolfin::Expression::restrict (this=0xbfccd268, > w=0x82ada80, eleme...@0x80f64a8, > dolfin_ce...@0xbfccc8f8, ufc_ce...@0xbfccc88c, local_facet=2) at > dolfin/function/Expression.cpp:77 > #3 0xb7c609b5 in dolfin::DirichletBC::compute_bc_topological > (this=0xbfccd55c, boundary_valu...@0xbfccc9a8, > da...@0xbfccc9c0) at dolfin/fem/DirichletBC.cpp:527 > #4 0xb7c60e4c in dolfin::DirichletBC::compute_bc (this=0xbfccd55c, > boundary_valu...@0xbfccc9a8, da...@0xbfccc9c0) > at dolfin/fem/DirichletBC.cpp:488 > #5 0xb7c64520 in dolfin::DirichletBC::apply (this=0xbfccd55c, > A=0xbfcccb58, b=0xbfcccb10, x=0x0) > at dolfin/fem/DirichletBC.cpp:320 > #6 0xb7c64a03 in dolfin::DirichletBC::apply (this=0xbfccd55c, > a...@0xbfcccb58, b...@0xbfcccb10) > at dolfin/fem/DirichletBC.cpp:173 > #7 0xb7c47d41 in dolfin::VariationalProblem::solve_linear > (this=0xbfccd2e0, u...@0xbfcccf9c) > at dolfin/fem/VariationalProblem.cpp:204 > #8 0xb7c48bbc in dolfin::VariationalProblem::solve (this=0x3, > u...@0x80f6648) at dolfin/fem/VariationalProblem.cpp:93 > #9 0x08074a06 in main () at main.cpp:89 > (gdb)
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