svn commit: r367432 - in head: lib/libmemstat sys/cddl/dev/dtmalloc sys/kern sys/sys

[Yasuhiro KIMURA]

From: Mateusz Guzik <mjg at FreeBSD.org>
Subject: svn commit: r367432 - in head: lib/libmemstat sys/cddl/dev/dtmalloc sys/kern sys/sys
Date: Fri, 6 Nov 2020 21:33:59 +0000 (UTC)

> Author: mjg
> Date: Fri Nov  6 21:33:59 2020
> New Revision: 367432
> URL: https://svnweb.freebsd.org/changeset/base/367432
> 
> Log:
>   malloc: move malloc_type_internal into malloc_type
>   
>   According to code comments the original motivation was to allow for
>   malloc_type_internal changes without ABI breakage. This can be trivially
>   accomplished by providing spare fields and versioning the struct, as
>   implemented in the patch below.
>   
>   The upshots are one less memory indirection on each alloc and disappearance
>   of mt_zone.
>   
>   Reviewed by:	markj
>   Differential Revision:	https://reviews.freebsd.org/D27104

With this commit kernel panic happens on amd64 as following.

https://www.utahime.org/FreeBSD/FreeBSD.13-CURRENT.amd64.r367432.panic.png

---
Yasuhiro KIMURA