On 08/02/2018 12:08 AM, Alexey Brodkin wrote: >> The fault handling is spaghetti mess of checks and more checks and has not really >> been touched since upstreaming. I need to clean it up and essentially rewrite it >> for v4.19 > So would you like me to send a re-spin with less changes as discussed above so > we have something better for now and for back-porting to stable branches. No that's fine, I'll fix it up here - minimally for the stable backports and do the rewrite later. BTW I tried to reproduce the Old OOM hangs from LTP (STARS 9001304674, 9001281305) to prove that this fix solves those too, but I can't seem to reproduce the same deadlock without this fix on 4.17 kernel. -Vineet