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Subject: Re: [OMPI users] Question on ssh search path
From: marco atzeri (marco.atzeri_at_[hidden])
Date: 2012-10-18 00:50:39


On 10/18/2012 2:45 AM, Ralph Castain wrote:
>

>
>>
>>>>
>>>> trying to debug I notice a strange pattern on ssh search:
>>>> 1) ssh is only searched on the PATH directories that end with "bin"
>>>> other directories are skipped.
>>>> 2) //usr/bin/ssh is not on the PATH but is searched.
>>>> Why and where is defined in the code ?
>>
>> any idea from where this //usr/bin/ssh is coming for ?
>
> /usr/bin is one of the default posix locations for system binaries, so I would expect it is in your path.

/usr/bin yes
but
//usr/bin no.

on cygwin "//" is always a network path and "//usr/bin" does not exist.
>
>
>>
>>>>
>>>> 103 321183 [main] orterun 6304 normalize_posix_path: src /home/marco/bin/ssh
>>>> 100 324353 [main] orterun 6304 normalize_posix_path: src /usr/local/bin/ssh
>>>> 99 327381 [main] orterun 6304 normalize_posix_path: src /usr/bin/ssh
>>>> 36 1805679 [main] orterun 6304 normalize_posix_path: src /home/marco/bin/ssh
>>>> 34 1807010 [main] orterun 6304 normalize_posix_path: src /usr/local/bin/ssh
>>>> 34 1808236 [main] orterun 6304 normalize_posix_path: src /usr/bin/ssh

my path is much longer but only the bin directory are searched

>>>> 37 1810858 [main] orterun 6304 normalize_posix_path: src //usr/bin/ssh

this is the anomaly

>>>>
>>>> as immediately after the "//" search mpirun crashes
>>>>
>>>> 703 9508968 [WNetOpenEnum] orterun 8020 cygthread::stub: thread 'WNetOpenEnum', id 0x15A0, stack_ptr 0x28BAD40
>>>> --- Process 8020, exception 000006AB at 776BB9BC
>>>> 41286 9550254 [main] orterun 8020 fs_info::update: Cannot get volume attributes (\??\UNC), C0000010
>>>>
>>>> I suspect this search is the culprit.
>>>>
>>>> If someone is interested I put here
>>>> http://matzeri.altervista.org/works/ompi/
>>>>
>>>> all the config, check and make logs plus the ompi_info output.
>>>>
>>>> Regards
>>>> Marco
>>