aconnect occasionally causes kernel oopses

[folkert]

> > folkert at oensoens:~$ aplaymidi -l
> > ALSA lib seq_hw.c:466:(snd_seq_hw_open) open /dev/snd/seq failed: Permission denied
> > Cannot open sequencer - Permission denied
> > 
> > ???
> 
> Hrm, that's unexpected.

New system, account was not in the audio-group.

> Meanwhile, I reconsidered the fix and a better idea came after the
> sleep.  Below is the new fix patch.  Could you give it a try instead
> of the previous one?

Works fine as well: 7 concurrent script-instances for half an hour and
nothing logged in dmesg.