On Wed, Dec 02, 2009 at 12:10:22PM +0100, Johannes Ring wrote: > On Wed, Dec 2, 2009 at 11:58 AM, Anders Logg <l...@simula.no> wrote: > > 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? > > No, it didn't help.
ok, can you some other things, like not calling clear() from the previous location in the trace. And if that works, then comment out the lines in clear() one by one. -- Anders > Johannes > > > > > Garth, is there a reason for using x.resize(0) instead of x.clear()? > > > > > > > > > >> /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) > > > > -----BEGIN PGP SIGNATURE----- > > Version: GnuPG v1.4.9 (GNU/Linux) > > > > iEYEARECAAYFAksWSGQACgkQTuwUCDsYZdGHUQCeKA7jGA5feDDO6Y9Lt96a0mac > > EaIAn3C4V98D13xh11JmYbeYSPoV37Kx > > =vOzG > > -----END PGP SIGNATURE----- > > > >
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