RE: [RFC PATCH] x86, entry: Switch stacks on a paranoid entry from userspace

From: Luck, Tony
Date: Thu Nov 13 2014 - 17:33:50 EST


> Are you sure that this works in an unmodified kernel

Unmodified kernel has run tens of thousands of injection/consumption/recovery cycles.

I did get a crash with the entry/exit traces you asked for. Last 20000 lines of console log
attached. There are a couple of OOPs before things fall apart completely. I haven't yet
counted all the entry/exits from the last cycle to see if they match.

-Tony

Attachment: console.log.bz2
Description: console.log.bz2