On Mon, 02 Aug 2021 08:18:45 +0200, folkert wrote: > > > In which situation? > > I was testing something that listens for alsa events and for that I ran > a continuous loop that did: > > while true > do > aconnect 128:1 14:0 > aconnect -d 128:1 14:0 > aconnect -d 128:2 128:1 > aconnect 128:2 128:1 > done > > I ran 5 instances in parallel. > > 14 is midi through > 128 is rtpmidi So rtpmidi process keeps running during the loop, that is, it's only about connection and disconnection, right? Also, you're listening to an event during that -- but how? In general when you report a bug, more detailed description about the test itself would be really helpful. At best, provide a PoC, which makes the debug much easier. Posting only the stack trace without any other information is, OTOH, almost pointless. One can't decode the address for a binary built for a different system easily, either. thanks, Takashi