Anders Logg 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? > > Garth, is there a reason for using x.resize(0) instead of x.clear()? >
No. It should be clear(). Garth > -- > 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) >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~dolfin >> Post to : dolfin@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~dolfin >> More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : dolfin@lists.launchpad.net Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
