Re: [Denemo-devel] Denemo crash

[Andreas Schneider]

Am 03.02.2017 um 17:47 schrieb Richard Shann:
> On Thu, 2017-02-02 at 23:33 +0100, Andreas Schneider wrote:
>> Am 01.02.2017 um 22:48 schrieb Richard Shann:
>>> yes, but it could be a bug in Denemo that happens not to be
>> triggered. 
>>> Can you try executing
>>> (d-IncreaseGuard) in the Scheme window or CLI and then seeing if it
>>> crashes? d- IncreaseGaurd will turn off the undo, and this will
>> indicate
>>> that the problem is with the Snapshot done before adding the staff.
>>
>> After executing (d-IncreaseGuard), the Denemo does not crash any more
>> when inserting a staff.
> 
> Well, I've gone over the snapshotting code and done some cleaning and
> re-coding, commenting and protected against a condition that shouldn't
> arise. This is now in git.
> If, with this new version inserting/deleting a staff from that score (I
> guess it is any score with lyrics) is still crashing it is going to be
> quite tricky to debug.
> If you *do* have the current git source code crashing under gdb you
> could create a breakpoint at line 1176 of select.c which is where the
> snapshot code ends (you do a Ctrl-C to suspend the program, issue
> 
> b select.c:1176
> 
> to insert the break and then the command
> 
> c
> 
> to continue the program).
> 
> Then it should stop on that line when you try to add/delete a staff.
> 
> If it does stop then issuing 
> 
> call call_out_to_guile ("(d-Save \"/home/aschneider/JUNKNAME.denemo\")")
> 
> at the gdb prompt will save the score under the name JUNKNAME.denemo and
> this may the hold a clue.

Hmm, it seems not to reach that point. I did as you recommended, yet
after inserting a new staff Denemo crashes before it reaches the
breakpoint. Or did you mean I should do that after executing
(d-IncreaseGuard)?

Andreas

crash.log
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