On Fri, 12 Apr 2019, Michael Schmitz wrote: > > > > => I think the problem is that 'I' kthreads have NULL "current_pwq". > > Confirmed by the patch you attached so your analysis seems right. >
And offset_of(struct poll_workqueue, wq) == 0x00000004. > > > > Ones with workqueues just have "current_func" set, others don't. > > > > Why that would affect / fault only on 030? > > The 040/060 bus error trap may not force a bus error bypassing > do_page_fault() in the same way the 030 handler does. I haven't yet > looked at the 040/060 handler. Did I mention I really don't do memory > management stuff? > Well, that makes two of us. > The real question is - why are these fields NULL in the first place? And > are they NULL only on 030? > Could be another question for elgar? --
