Re: [PATCH AUTOSEL 5.10 20/31] um: allocate a guard page to helper threads

From: Sasha Levin
Date: Mon Jan 04 2021 - 09:21:54 EST


On Wed, Dec 30, 2020 at 03:48:57PM +0100, Johannes Berg wrote:
On Wed, 2020-12-30 at 08:03 -0500, Sasha Levin wrote:

We've been running into stack overflows in helper threads
corrupting memory

For the record, that was mostly referring to "while development", so
while this change makes a few things a bit safer, I don't think there's
all that much point in backporting to stable; presumably things are
working OK there for people, and developers will (hopefully) be working
on mainline anyway.

I'll drop it, thanks!

--
Thanks,
Sasha