Crash with tempo ramping

#1

Hi,
I’ve got the same problem that the one described in this post (but i can’t reply to it…)

Here’s my logs:

CASE 1: 110 .. 95 1/4 RAMPED notes per minute (153949091 .. 178256842 sc-per-1/4) P@4899600000/31:0/10|3|0  ramp to 95 omega = -1.47628494651e-10
 scpqn = 153949091
 for 89:0 @ 31:0 | 4899600000 + log (-1.31818180832) -1.14513233529 - omega = 1.47628494651e-10 => -2857251670

I have seen that this problem has been fixed, has it been introduced yet?
If not, is there a way to fix my file, so I can recover the data?
I precise that I use the Ardour 8.11 version on Windows.

Here my project file if someone wants to invastigate further.

#2

I just got this error a second time on another session :

CASE 1: 68 .. 64 1/4 RAMPED notes per minute (249035294 .. 264600000 sc-per-1/4) P@6544176000/26:0/9|5|0  ramp to 64 omega = -2.36205595245e-10
 scpqn = 249035294
 for 43:947 @ 26:0 | 6544176000 + log (-1.02901348817) -3.53999444781 - omega = 2.36205595245e-10 => -8442744374

Is there a way to fix the session files? And what exactly causes the crash? What can I do for not reproducing this bug again?
Thanks!

#3

It is caused by a combination of the tempo map you’re using and a bug (or more than 1 bug) in our code. If you can please make the session file available to me to take a look at.

#4

Here are my two broken session files:

#5

Did you read :

carefully ?

#6

I can’t generate a problem with the Extrait_08 session, in either 8.11 or the current codebase. When does the error occur?