On 2012-10-25 23:42-0400 Bill Hoffman wrote:
Either one [of the executables] should show the issue. I did show the wrong output. When it fails you get no output.
I now have a much simplified file (compressed so that mailers won't mess it up, but uncompressed it expands only to 205 bytes) to search that still triggers the issue (no output from downloaded cmake while the bootstrapped version finds the string). I used emacs to cut out everything after "INFO:compiler[GNU]INFO:platform[]" in the file and a lot before it including many long chains of NULLS that were between non-NULL characters. The pattern of the non-NULL characters before the string appears to be important for triggering the bug. If I cut out any of them, suddenly the downloaded CMake starts working and finds "INFO:compiler[GNU]INFO:platform[]". So from these experiments it appears a particular pattern of certain strings delimited by NULLs where the number of NULLs don't matter (although I didn't check by removing all NULLs whether at least one NULL is necessary between these particular strings) is required to trigger the issue. All other patterns I have tried of similar or smaller size prior to the string being searched for do not trigger the bug. Thus, I am beginning to wonder if there is some hash collision going on under Wine (only for instructions issued by the compiler used for the downloaded version) that is causing this particular short pattern of non-NULL characters delimited by NULL ones to cause a failure in the search for the string? Anyhow, I urge those who have installed Wine to play with this some more by editing the attached file with emacs to see what byte pattern triggers the bug (no output) and what patterns do not trigger the bug (output of -- [INFO:compiler[GNU]INFO:platform[]] ) for the downloaded version of CMake. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________
INFO_string.dat.gz
Description: compressed version of short file to be searched that still triggers the bug
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