Gentoo Archives: gentoo-dev

From: "Michał Górny" <mgorny@g.o>
To: gentoo-dev@l.g.o
Cc: dist-kernel@g.o, Georgy Yakovlev <gyakovlev@g.o>
Subject: Re: [gentoo-dev] [PATCH 1/2] profiles: add PPC_PAGESIZE use expand
Date: Wed, 05 Jan 2022 11:04:11
Message-Id: 53596daa3e2ccf9b5b8601b592645c1a6f24a692.camel@gentoo.org
In Reply to: [gentoo-dev] [PATCH 1/2] profiles: add PPC_PAGESIZE use expand by Georgy Yakovlev
1 On Tue, 2022-01-04 at 15:55 -0800, Georgy Yakovlev wrote:
2 > Hardware can use either size, it's a built time option.
3 > 64K is standard and is what we use by default and 99% of distros use.
4 > 4K is more compatible with desktop applications and GPU drivers,
5 > which often assume 4K page size.
6
7 Sounds like a pretty major cannon for this sparrow.
8
9 >
10 > Problem from switching page sizes on reboot:
11 > btrfs and swaps break, other filesystems like ext4 may become
12 > unmountable, sepending on direction of switch 4K <-> 64K.
13
14 This really sounds like it shouldn't be switched lightly,
15 and therefore one more argument against adding a USE flag for it.
16
17
18 --
19 Best regards,
20 Michał Górny