#616 custom max. speed >586% makes SID engine crash

[Querino]

do this:
SID settings: ReSID, resampling (also fast)
now this :
maximum speed -> custom -> any value above 586

error dialog pops up:
sound: cannot initialize SID engine

what VICE version are you using? 2.4.18
what operating system are you using? Win 7
what did happen? error dialog: sound: cannot initialize SID engine

[Robert McIntyre]

I think that this is by design, according to the comments starting ~line 464 in ...\vice\src\resid\sid.cc.

It's not actually crashing the SID engine, the SID engine is proactively refusing to initialize.

[Querino]

ok.

but then, why it doesn't happen on "no limit"? it runs at >1000% here.

also, once you get this error message, it's not possible to reactivate the SID engine at lower speed settings.

[gpz]

is this still a problem? i cant reproduce it on current trunk (although on linux)

[Querino]

still the same in winvice.

[Marco van den Heuvel]

I cannot reproduce this problem

• are you using 32bit build or 64bit build ??
• where did you get the binary from (link) ??
• is your windows 32bit or 64bit ??

[Greg King]

I can reproduce it.

• Intel Core2 Duo @ 2 GHz.
• 32-bit Windows 7
• Pokefinder's WinVICE-2.4.21-x86-r30040

I
1. ran x64;
2. used default settings;
3. set the Maximum speed to 587%;
4. set ReSID's sampling method to either "Fast Resampling" or "Resampling".

However, I can re-enable the sound if I change to a lower max. speed or a "lower" sampling method.

[gpz]

ehrr... again: the sound getting disabled is by design. this bug is about VICE crashing in that case.

[Querino]

ok. it's not VICE that crashes, just the SID engine.

1. start x64sc.exe
2. reSID --> resampling
3. custom speed --> anything above 586%
4. --------> VICE ERROR! Cannot initialize SID engine
5. close error window
6. set speed back to 100%
7. no more sound. even changing SID settings and a hard reset won't bring it back

same on both pokefinder and my own builds... on both my i5 and my i7 cpu

[Querino]

well, the problem is still there...

[gpz]

how do you even set it to that value? :)

[compyx]

In Gtk3: click on the %cpu/fps widget in the statusbar, then use 'maximum speed' -> 'custom'.

When I use either resampling/fast resampling ReSID indeed fails to init (no crash though) when using >= 587% speed.
When using fast/interpolation, I can set the custom speed to 1000% and ReSID still works. I would try higher values, but the UI doesn't accept values over 1000.

[gpz]

i see the log says

Warning - reSID: Out of spec, increase sampling rate or decrease maximum speed

now - so is this a wontfix? why does it even happen? who added that message without updating this ticket?

[Querino]

the log entry is there since ages (checked right now)... i should have posted this.

even in v2.4 it is present.

strange detail: the max accepted value is now 638, not 586 as it used to be :)

[gpz]

let me guess, you change samplerate back to 44khz and its back to 586? :)

its probably simply hitting the limits of the resampler.... IMHO we should also disable the sound at those speeds (perhaps anything lower 50% and higher 200%)

@dqh what do you think?

[Querino]

let me guess, you change samplerate back to 44khz and its back to 586? :)

ah yes, didn't even know the default was changed.
so it's 1278% at 96khz

only 106% at 8khz (but who cares?)