On Wed, Aug 5, 2020 at 1:36 PM Ian Kent <raven@xxxxxxxxxx> wrote: > > I can see in the kernel code that an error is returned if the message > buffer is full when trying to add a message, I just can't see where > to get it in the libmount code. > > That's not really a communication protocol problem. > > Still I need to work out how to detect it, maybe it is seen by > the code in libmount already and I simply can't see what I need > to do to recognise it ... > > So I'm stuck wanting to verify I have got everything that was > sent and am having trouble moving on from that. This is the commit that should add the overrun detection capability: e7d553d69cf6 ("pipe: Add notification lossage handling") Thanks, Miklos