Re: 4.6.2 frequent crashes under memory + IO pressure

[Johannes Stezenbach]

On Sun, Jun 26, 2016 at 02:04:40AM +0900, Tetsuo Handa wrote:
> It seems to me that somebody is using ALLOC_NO_WATERMARKS (with possibly
> __GFP_NOWARN), but I don't know how to identify such callers. Maybe print
> backtrace from __alloc_pages_slowpath() when ALLOC_NO_WATERMARKS is used?

Wouldn't this create too much output for slow serial console?
Or is this case supposed to be triggered rarely?

This crash testing is pretty painful but I can try it tomorrow
if there is no better idea.

Johannes