S6CasA errors
25 Apr 2014 14:55:02 UTC
Topic 197555
(moderation:
All of a sudden my Server2008 host fails every task with the error XLAL Error - XLALSFTdataFind /src/SFTfileIO.c:469): Invalid data
I have tried aborting all tasks, uninstalling and installing boinc, same error.
Boinc will only download CPU S6CasA tasks so I don't know if it's particular to those. I assume it don't download GPU tasks anymore because I have too many errors?
Any ideas?
S6CasA errors
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Uninstalling and installing Boinc will not touch the project data files so that won't help, I'd try a project reset to delete all project files so Boinc downloads fresh copies.
If that don't help I'd start thinking of hardware diagnostics, check CPU temp, HDD and RAM tests etc.
Sorry, forgot to mention that
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Sorry, forgot to mention that I also deleted the C:\ProgramData\BOINC folder after uninstalling boinc.
Hardware problems was what occurred to me as well. Temperatures are fine and windows event viewer don't show anything weird. SQLServer runs fine on the host. The error suggests disk (or possibly memory) problems so I'll try to check those.
I'll see if I can find the SFTfileIO.c file and see if that gives any clues
Found one SFTfileIO.c file
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Found one SFTfileIO.c file here. Not exactly the same but close enough I think (line 481 instead of 469).
The error message I get is:
"matched SFTs with inconsistent deltaF: 0.00055555602121684286 != 0.00055555555555555556!"
I interpret it as a sanity check that failed. All sections in the input file must have the same deltaF value in their header. deltaF is a floating point variable (REAL8 which seems to map to a double). The values suggest a problem with significant number of digits. Looks like it the first value only have "float" precision.
Is this a bug in windows Server 2008? A problem in the data file? My CPU failing? And how do I find out which it is? :)