I don't get the use case, why can't the programs use DBus to negotiate the strea...

mburns · on April 28, 2015

because they want the square hole for a reason, the square hole being a unified in-kernel IPC system.

Greg KH has given a few talks/blogs about the design goals of kdbus. https://lwn.net/Articles/551969/

mcguire · on April 29, 2015

"because they want the square hole for a reason, the square hole being a unified in-kernel IPC system."

Another one?

mburns · on April 30, 2015

No, a first one. The others aren't unified, they are niche solutions. Those specific shortcomings are covered in those KDBus talks.

If the existing solutions were sufficient, why would the 'new' way ever get merged into mainline?

justincormack · on April 28, 2015

Well actually thats what kdbus would do anyway, all the large transfers will happen over memfd buffers...