[gmx-developers] release-4-5 and 4-6 crash compiled with -DCMAKE_BUILD_TYPE:STRING=Debug. Thread code to blame?

[David van der Spoel]

On 2012-01-02 10:48, David van der Spoel wrote:
> I'm trying to debug some redmine issues and find myself stuck due to
> above error:
>
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000001
> 0x00000001006521b1 in tMPI_Spinlock_trylock (x=0x100d00fa0) at
> gcc_x86.h:244
> 244 __asm__ __volatile__("\tmovl $1, %0\n" /* set eax to 1, the locked
> (gdb) where
> #0 0x00000001006521b1 in tMPI_Spinlock_trylock (x=0x100d00fa0) at
> gcc_x86.h:244
> #1 0x000000010065225f in tMPI_Lock_lock (lock=0x100d00fa0) at lock.c:69
> #2 0x00000001003d1635 in gmx_fio_lock (fio=0x100d00f20) at gmxfio.c:252
> #3 0x00000001003d176c in gmx_fio_insert (fio=0x100d00f20) at gmxfio.c:305
> #4 0x00000001003d1fb3 in gmx_fio_open (fn=0x100d01a20 "md.log",
> mode=0x100671a8e "w+") at gmxfio.c:570
> #5 0x00000001003d2273 in gmx_fio_fopen (fn=0x100d01a20 "md.log",
> mode=0x100671a8e "w+") at gmxfio.c:643
> #6 0x00000001003e5bbb in gmx_log_open (lognm=0x100d00c10 "md.log",
> cr=0x100d00900, bMasterOnly=1, Flags=7168, fplog=0x7fff5fbfe4a0) at
> main.c:310
> #7 0x00000001000269fe in main (argc=1, argv=0x7fff5fbff790) at mdrun.c:651
>
> I'm on Mac OSX Lion (10.7.2)
> [artemisiabmcuuse:713/spc] % gcc -h
> i686-apple-darwin11-llvm-gcc-4.2: no input files
>
> Any clues?
>
> Will try it on Linux next.
>
The porblem is NOT reproducible on a Linux box. OSX specific?

-- 
David van der Spoel, Ph.D., Professor of Biology
Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:	+46184714205.
spoel at xray.bmc.uu.se    http://folding.bmc.uu.se