Hello,
This looks like memory corruption. Do you have more details on what your
app is doing? I don't see any MPI calls inside the call stack. Could you
rebuild Open MPI with debug information enabled (by adding
`--enable-debug` to configure)? If this error occurs on singleton runs
(1 process) then you can easily attach gdb to it to get a better stack
trace. Also, valgrind may help pin down the problem by telling you which
memory block is being free'd here.
Thanks
Joseph
On 1/30/24 07:41, afernandez via users wrote:
Hello,
I upgraded one of the systems to v5.0.1 and have compiled everything
exactly as dozens of previous times with v4. I wasn't expecting any
issue (and the compilations didn't report anything out of ordinary)
but running several apps has resulted in error messages such as:
/Backtrace for this error:/
/#0 0x7f7c9571f51f in ???/
/ at ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0/
/#1 0x7f7c957823fe in __GI___libc_free/
/ at ./malloc/malloc.c:3368/
/#2 0x7f7c93a635c3 in ???/
/#3 0x7f7c95f84048 in ???/
/#4 0x7f7c95f1cef1 in ???/
/#5 0x7f7c95e34b7b in ???/
/#6 0x6e05be in ???/
/#7 0x6e58d7 in ???/
/#8 0x405d2c in ???/
/#9 0x7f7c95706d8f in __libc_start_call_main/
/ at ../sysdeps/nptl/libc_start_call_main.h:58/
/#10 0x7f7c95706e3f in __libc_start_main_impl/
/ at ../csu/libc-start.c:392/
/#11 0x405d64 in ???/
/#12 0xffffffffffffffff in ???/
OS is Ubuntu 22.04, OpenMPI was built with GCC13.2, and before
building OpenMPI, I had previously built the hwloc (2.10.0) library at
/usr/lib/x86_64-linux-gnu. Maybe I'm missing something pretty basic,
but the problem seems to be related to memory allocation.
Thanks.
