Mike, how do you test ? i cannot reproduce a bug :
if you run ompi_info -a -l 9 | less and i press 'q' at the early stage (e.g. before all output is written to the pipe) then the less process exits and receives SIG_PIPE and crash (which is a normal unix behaviour) now if i press the spacebar until the end of the output (e.g. i get the (END) message from less) and then press 'q', then there is no problem. strace -e signal ompi_info -a -l 9 | true will cause ompi_info receives a SIG_PIPE strace -e signal dd if=/dev/zero bs=1M count=1 | true will cause dd receives a SIG_PIPE unless i miss something, i would conclude there is no bug Cheers, Gilles On 2014/07/09 19:33, Mike Dubman wrote: > mxm only intercept signals and prints the stacktrace. > happens on trunk as well. > only when "| less" is used. > > > > > > > On Tue, Jul 8, 2014 at 4:50 PM, Jeff Squyres (jsquyres) <jsquy...@cisco.com> > wrote: > >> I'm unable to replicate. Please provide more detail...? Is this a >> problem in the MXM component? >> >> On Jul 8, 2014, at 9:20 AM, Mike Dubman <mi...@dev.mellanox.co.il> wrote: >> >>> >>> $/usr/mpi/gcc/openmpi-1.8.2a1/bin/ompi_info -a -l 9|less >>> Caught signal 13 (Broken pipe) >>> ==== backtrace ==== >>> 2 0x0000000000054cac mxm_handle_error() >> /var/tmp/OFED_topdir/BUILD/mxm-3.2.2883/src/mxm/util/debug/debug.c:653 >>> 3 0x0000000000054e74 mxm_error_signal_handler() >> /var/tmp/OFED_topdir/BUILD/mxm-3.2.2883/src/mxm/util/debug/debug.c:628 >>> 4 0x00000033fbe32920 killpg() ??:0 >>> 5 0x00000033fbedb650 __write_nocancel() interp.c:0 >>> 6 0x00000033fbe71d53 _IO_file_write@@GLIBC_2.2.5() ??:0 >>> 7 0x00000033fbe73305 _IO_do_write@@GLIBC_2.2.5() ??:0 >>> 8 0x00000033fbe719cd _IO_file_xsputn@@GLIBC_2.2.5() ??:0 >>> 9 0x00000033fbe48410 _IO_vfprintf() ??:0 >>> 10 0x00000033fbe4f40a printf() ??:0 >>> 11 0x000000000002bc84 opal_info_out() >> >> /var/tmp/OFED_topdir/BUILD/openmpi-1.8.2a1/opal/runtime/opal_info_support.c:853 >>> 12 0x000000000002c6bb opal_info_show_mca_group_params() >> >> /var/tmp/OFED_topdir/BUILD/openmpi-1.8.2a1/opal/runtime/opal_info_support.c:658 >>> 13 0x000000000002c882 opal_info_show_mca_group_params() >> >> /var/tmp/OFED_topdir/BUILD/openmpi-1.8.2a1/opal/runtime/opal_info_support.c:716 >>> 14 0x000000000002cc13 opal_info_show_mca_params() >> >> /var/tmp/OFED_topdir/BUILD/openmpi-1.8.2a1/opal/runtime/opal_info_support.c:742 >>> 15 0x000000000002d074 opal_info_do_params() >> >> /var/tmp/OFED_topdir/BUILD/openmpi-1.8.2a1/opal/runtime/opal_info_support.c:485 >>> 16 0x000000000040167b main() ??:0 >>> 17 0x00000033fbe1ecdd __libc_start_main() ??:0 >>> 18 0x0000000000401349 _start() ??:0 >>> =================== >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2014/07/15075.php >> >> >> -- >> Jeff Squyres >> jsquy...@cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2014/07/15076.php >> > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/07/15080.php
