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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2006-08-30 17:37:47


As long as it's always 3 function calls -- do we know that it will be?

On 8/30/06 5:32 PM, "Brian Barrett" <brbarret_at_[hidden]> wrote:

> Hi all-
>
> A question about stack tracing. Currently, we have it setup so that,
> say, a segfault results in:
>
> [0]func:/u/jjhursey/local/odin/ompi/devel/lib/libopal.so.0(opal_backtrace_prin
> t+0x2b) [0x2a959166ab]
> [1] func:/u/jjhursey/local/odin/ompi/devel/lib/libopal.so.0 [0x2a959150bb]
> [2] func:/lib64/tls/libpthread.so.0 [0x345cc0c420]
> [3]
> func:/san/homedirs/jjhursey/local/odin//ompi/devel/lib/openmpi/mca_oob_tcp.so(
> mca_oob_tcp_recv+0x480) [0x2a95fd6354]
> [4]
> func:/u/jjhursey/local/odin/ompi/devel/lib/liborte.so.0(mca_oob_recv_packed+0x
> 46) [0x2a957a96a3]
> [5]
> func:/u/jjhursey/local/odin/ompi/devel/lib/libmpi.so.0(ompi_comm_connect_accep
> t+0x1d8) [0x2a955a29dc]
> [6]
> func:/u/jjhursey/local/odin/ompi/devel/lib/libmpi.so.0(ompi_comm_dyn_init+0x11
> 0) [0x2a955a49e0]
>
> This seems to result in confusion from some users (not josh, I was just
> reading his latest bug when I thought of this) that the error must be in
> OMPI because that's where it segfaulted. It would be fairly trivial (at
> least, on Linux and OS X) to not print the last 3 lines such that the
> error looked like:
>
> [0]
> func:/san/homedirs/jjhursey/local/odin//ompi/devel/lib/openmpi/mca_oob_tcp.so(
> mca_oob_tcp_recv+0x480) [0x2a95fd6354]
> [1]
> func:/u/jjhursey/local/odin/ompi/devel/lib/liborte.so.0(mca_oob_recv_packed+0x
> 46) [0x2a957a96a3]
> [2]
> func:/u/jjhursey/local/odin/ompi/devel/lib/libmpi.so.0(ompi_comm_connect_accep
> t+0x1d8) [0x2a955a29dc]
> [3]
> func:/u/jjhursey/local/odin/ompi/devel/lib/libmpi.so.0(ompi_comm_dyn_init+0x11
> 0) [0x2a
>
> Would anyone object to such a change?
>
> Brian
>
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> devel_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/devel

-- 
Jeff Squyres
Server Virtualization Business Unit
Cisco Systems