Re: Manual page breaking causing assertion failure

[Chris Yate]

Hey Abraham / BugsList people,

I'm guessing nobody had a chance to look at this problem. I'm experiencing
it again, and it's really slowing me down.

Is there anything else I can do to help debug / isolate the issue? It's
still there in 2.19.45 but I guess we'd expect that anyway.

Chris

On Sat, 9 Jan 2016 at 09:55 Chris Yate <address@hidden> wrote:

> So, it turns out this was easy to minimise the code. File is attached.
> It's still ~70 bars but only one voice, which is the dynamics staff of a
> piano score (without anything else), so it's only silent music.
>
> "AutoPageBreaksOff" in the score block causes the exception failure.
>
> I note some "insane spring distance" warnings.These don't happen in the
> real thing.
>
> Chris
>
>
> On 9 January 2016 at 09:05, Chris Yate <address@hidden> wrote:
>
>> Yes I understand a minimal example is ideal, but I don't think this would
>> occur with minimal code. I'll run a couple of tests to check.
>>
>> Chris
>> On 9 Jan 2016 4:33 am, "Abraham Lee" <address@hidden> wrote:
>>
>>> Chris,
>>>
>>> Sorry, I didn't mean to have you send _me_ your code (typing error). Is
>>> your code that big that you can't reduce it down towards a "tiny example"?
>>> If you can, that'd be best. Otherwise, if a single file, just attach the
>>> file to an email. If a group of files, then a .zip folder would be fine.
>>> I've seen others share code via gist or github, etc. Take your pick I guess.
>>>
>>> Best,
>>> Abraham
>>>
>>> On Friday, January 8, 2016, Chris Yate <address@hidden> wrote:
>>>
>>>> Hi, and thanks.
>>>>
>>>> How would be best to give you the code? I could attach as a .zip to a
>>>> list email, or upload to a gist.
>>>>
>>>> (Please note, I'm using openlilylib, minimally, which I doubt has
>>>> anything to do with the bug but is a dependency)
>>>> Forwarding to the bug list. Yes, if I'd make your code available to the
>>>> developers.
>>>>
>>>> Best,
>>>> Abraham
>>>>
>>>> ---------- Forwarded message ----------
>>>> From: *Chris Yate* <address@hidden>
>>>> Date: Friday, January 8, 2016
>>>> Subject: Manual page breaking causing assertion failure
>>>> To: Lilypond-User Mailing List <address@hidden>
>>>>
>>>>
>>>> Hi,
>>>> I'm trying to paginate my score nicely and the automatic paging isn't
>>>> good enough. So I'm doing all the page breaks manually -- and a certain
>>>> situation is causing an assertion failure on compilation:
>>>>
>>>> << Snippet of output:
>>>>
>>>> ....
>>>>
>>>> MIDI output to `BeiMannernScore.mid'...
>>>>
>>>> Finding the ideal number of pages...
>>>>
>>>> Fitting music on 9 or 10 pages...
>>>>
>>>> This application has requested the Runtime to terminate it in an
>>>> unusual way.
>>>>
>>>> Please contact the application's support team for more information.
>>>>
>>>> Assertion failed!
>>>>
>>>> Program: C:\Program Files (x86)\LilyPond\usr\bin\lilypond.exe
>>>>
>>>> File:
>>>> /home/gub/NewGub/gub/target/mingw/src/lilypond-git.sv.gnu.org--lilypond.git-release-unstable/lily/page-breaking.cc,
>>>> Line 1180
>>>>
>>>> Expression: ret <= cached_line_details_.size ()
>>>>
>>>> Exited with return code 3.
>>>>
>>>> >>
>>>>
>>>>
>>>> The problem occurs with the page break on a specific bar. For now I've
>>>> done the obvious thing and gone with a working state -- it's not critical.
>>>>
>>>>
>>>> Happy to push the code up to a Gist for anyone that wishes to debug the
>>>> issue. Let me know.
>>>>
>>>>
>>>> (This is apparently not happening if I build on Linux, only in Windows).
>>>>
>>>> Chris
>>>>
>>>>
>