Re: [Crash-utility] [PATCH] x86_64: do not process zero size exception stack
Hi Kazu,
Apparently the following patch causes this and it's in 5.10-rc ?
commit 02772fb9b68e6a72a5e17f994048df832fe2b15e
Author: Joerg Roedel <jroedel(a)suse.de>
Date: Mon Sep 7 15:15:43 2020 +0200
x86/sev-es: Allocate and map an IST stack for #VC handler
If so, it seems we should support this properly.
Not this one. I use 5.9.6 kernel for testing. It does not use VC handlers ( no
SEV-ES support yet).
First look in the kernel - didn’t show anything that sets 5th stack. Address seems valid.
Will dig
deeper. Might need to take a look at crash code, around ebase[] fetching.
Will send update on my findings.
btw, hopefully we would like to release the new version (7.2.9) of
crash
next week and are preparing, so some patches might be deferred to the next
(7.3.0 ?), especially patches for Linux 5.10.
Got it. Thanks for update.
My bigger patch that I've sent Today should definitely go post 7.2.9.
Thanks,
—Alexey