Error tracking through the log files [was: Re: Compilation error with page-breaking-page-count3.ly]

[Marc Hohl]

Am 28.09.2012 10:16, schrieb Marc Hohl:
> Am 28.09.2012 01:38, schrieb address@hidden:
> > Updates:
> >     Labels: -Patch-new Patch-needs_work
> >
> > Comment #33 on issue 2790 by address@hidden: Patch: bar-line 
> > interface part 2/2
> > http://code.google.com/p/lilypond/issues/detail?id=2790
> >
> > Patchy says 'fail on make check' - took an age to find anything in 
> > the logs - still cannot workouty how to quickly find what is the 
> > offending snippet/reg test when running multi cpu - the logs tell me 
> > to look in a snippet log which is there but which just lists a ton of 
> > snippets and which CPU failed, but I cannot ever seem to quickly 
> > narrow it down.
> >
> > It ends up as a tedious make check with one CPU and hope the logs 
> > show up, they didn't this time, the log file just contained a single 
> > line with the lilypond version.
> >
> > Anyway, after grepping for 'error' I came across
> >
> >
> > lily-7dccbf09.log:programming error: number of pages is out of bounds
> > lily-7dccbf09.log:programming error: tried to space systems on a bad 
> > number of pages
> > lily-7dccbf09.log:programming error: number of pages is out of bounds
> > lily-7dccbf09.log:programming error: tried to space systems on a bad 
> > number of pages
> >
> > /lilypond-git/input/regression/page-breaking-page-count3.ly
> I tried to compile this file both with my patch and with current 
> master and get this
> error in *both* cases.
>
> Can anyone compile the snippet and confirm that?
>
> It seems to be a bug totally unrelated to my work ;-)
Well, it seems to be not as simple as that.

I did a 'make test' on my patch. This fails, obviously.
The console says:

Dissecting...
Writing snippets...
Processing...
Processing 
/home/marc/git/lilypond/out/lybook-testdb/snippet-names-3552501373601762147.ly
command failed: /home/marc/git/lilypond/out/bin/lilypond -I ./ -I 
./out-test -I ../../input -I /home/marc/git/lilypond/Documentation -I 
/home/marc/git/lilypond/Documentation/snippets/out -I 
../../input/regression/ -I 
/home/marc/git/lilypond/Documentation/included/ -I 
/home/marc/git/lilypond/mf/out/ -I /home/marc/git/lilypond/mf/out/ -I 
/home/marc/git/lilypond/Documentation/pictures -I 
/home/marc/git/lilypond/Documentation/pictures/./out-test -dbackend=eps 
--formats=ps  -dseparate-log-files -dinclude-eps-fonts 
-dgs-load-lily-fonts --header=texidoc -I 
/home/marc/git/lilypond/Documentation/included/ -ddump-profile 
-dcheck-internal-types -ddump-signatures -danti-alias-factor=1 -I 
"/home/marc/git/lilypond/out/lybook-testdb"  -I  "."  -I  ".."  -I 
"/home/marc/git/lilypond/input/regression"  -I  "./"  -I "./out-test"  
-I  "../../input"  -I "/home/marc/git/lilypond/Documentation"  -I 
"/home/marc/git/lilypond/Documentation/snippets/out"  -I 
"../../input/regression/"  -I 
"/home/marc/git/lilypond/Documentation/included/"  -I 
"/home/marc/git/lilypond/mf/out/"  -I "/home/marc/git/lilypond/mf/out/"  
-I "/home/marc/git/lilypond/Documentation/pictures"  -I 
"/home/marc/git/lilypond/Documentation/pictures/./out-test" 
--formats=eps  -deps-box-padding=3.000000  -dread-file-list 
-dno-strip-output-dir 
"/home/marc/git/lilypond/out/lybook-testdb/snippet-names-3552501373601762147.ly"
Child returned 1
Error ignored by lilylib
Error trapped by lilypond-book

Please see 
/home/marc/git/lilypond/out/lybook-testdb/snippet-names-3552501373601762147.log

make[2]: *** [out-test/collated-files.texi] Error 1
make[2]: Leaving directory `/home/marc/git/lilypond/input/regression'
make[1]: *** [local-test] Error 2
make[1]: Leaving directory `/home/marc/git/lilypond/input/regression'
make: *** [test] Fehler 2


Ok. So far, so bad. Now I look at the log file.

address@hidden ~/git/lilypond (barlineII)$ more 
/home/marc/git/lilypond/out/lybook-testdb/snippet-names-3552501373601762147.log
GNU LilyPond 2.17.4
address@hidden ~/git/lilypond (barlineII)$

Ok, this is what James mentioned for the faulty patchy run.

The file snippet-names-3552501373601762147.ly contains

snippet-map-3552501373601762147.ly
b4/lily-1ce78b89.ly
f8/lily-25dab396.ly
37/lily-4583781c.ly
3d/lily-a69e10a7.ly
...
...
...
15/lily-c90f9b1c.ly

Since only the starting message appears, the fault is probably
at the beginning of the list of files, so I look at
snippet-map-3552501373601762147.ly

#(define version-seen #t)
#(define output-empty-score-list #f)
#(ly:add-file-name-alist '(("59/lily-6e61a987.ly" . 
"out-test/collated-files.tel
y")
...
...
...

I looked at the first file 59/lily-6e61a987.ly, which appears to be 
accidental-ancient.ly,
which appears to compile without problems with my patch.

How can I narrow down the file that causes the error?
It is somewhat strange that Lilypond shows only its version number and 
then aborts.

Regards,

Marc






> Regards,
>
> Marc
>
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