UBIFS: kernel bug scheduling while atomic on full volume

[Moffatt, Greg]

I'm seeing occasional instances of "scheduling while atomic" when doing writes to a nearly-full volume.  This is on a 3.4.34 kernel.

I found an old reference to a similar problem back in 2008 but haven't seen anything more on it.

It seems to happen when the volume is nearly full, and we're doing a large write (for example, dumping a core file).

Greg Moffatt.
gmoffatt at ciena.com