xboard polyglot error

[smatovic]

Recently my xboard on Ubuntu Linux 14.04 throws an error when starting an UCI engine via polyglot.

Tried version 4.7.3 from repository and 4.8.0 self compile, testwise removed .xboardrc and xboard.conf and reinstalled, no luck.

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xboard: Error: first chess program (polyglot -noini -ec "/home/srdja/Projects/chess/bin/stockfish7" -ed "/home/srdja/Projects/chess/bin/" -uci NalimovCache=4) exited unexpectedly

When starting polyglot itself, it looks alright...

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polyglot -noini -ec "/home/srdja/Projects/chess/bin/stockfish7" -ed "/home/srdja/Projects/chess/bin/" -uci NalimovCache=4,PolyGlot 1.4.67b by Fabien Letouzey.
uci
id name Stockfish 7 64
id author T. Romstad, M. Costalba, J. Kiiski, G. Linscott
option name Write Debug Log type check default false
...

I surely installed some updates recently, not sure which could have such an effect...any suggestions?

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Srdja

[hgm]

This is weird. XBoard prints this message when it can no longer communicate with the engine through the pipes. Usually Polyglot would pop up its own error message (through "telluser") when it thinks it necessary to exit.

That you can startup Polyglot from the command line is not completely conclusive, as Polyglot could have terminated at a later stage of the startup hand-shake. (XBoard did not say: "failed to start engine ...".) It would be important to know exactly where, then perhaps that is reproducible from the command line. Can you run XBoard wih the extra option -debug, and then post the xboard.debug file that is produced here?

[smatovic]

This is weird.

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StartChildProcess (dir="/home/srdja/Projects/books/book.bin") polyglot -noini -ec "/home/srdja/Projects/chess/bin/stockfish7" -ed "." -uci NalimovCache=4

Ah, thanks, i took a look into the debug file and found that i messed up the polyglot directory,
i mixed up the xboard params "-polyglotBook" and "-polyglotDir"....it works fine again

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Srdja