Application execution may never end (deadlock in MIDI library)

[peppy]

A user provided a memory dump of a stuck instance of osu!, which could be traced back to the internals of the MIDI library we're using:

This looks to be a lock contention issue, but it's not immediately obvious why this is happening. The library itself is unmaintained so we will likely need to look at fixing ourselves (and submitting a PR with hope it is merged and deployed).

As an aside, it looks like another user has encountered this same issue and published a potential fix for it to their own fork:

Knuhl/managed-midi@f8799f1

[tutacat]

Since that was merged, this can probably be closed now.

[peppy]

@tutacat what is "that" referring to? if you can provide a link for confirmation that would be appreciated.

[bdach]

atsushieno/managed-midi#74 probably. That said, this fix is in 1.10.1, and we haven't upgraded to that version yet. So if anything we'd need a bump to get that change in.