linux-kernel - Re: [BUG] Kernel panic when using Hibernation on kernel 6.1.25

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Message-ID: <Zo52UVec5YeVkoHb@duo.ucw.cz>
Date: Wed, 10 Jul 2024 13:53:53 +0200
From: Pavel Machek <pavel@....cz>
To: Jia-hao Bai (白家豪) <Jia-hao.Bai@...iatek.com>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"rafael@...nel.org" <rafael@...nel.org>,
	Iverlin Wang (王苳霖) <Iverlin.Wang@...iatek.com>,
	Boy Wu (吳勃誼) <Boy.Wu@...iatek.com>,
	Seiya Wang (王迺君) <seiya.wang@...iatek.com>,
	Dengjun Su (苏邓军) <Dengjun.Su@...iatek.com>,
	Win Yeh (葉昌倫) <Win.Yeh@...iatek.com>,
	Sowell Peng (彭首偉) <Sowell.Peng@...iatek.com>,
	Richard-CC Yang (楊職銓) <Richard-CC.Yang@...iatek.com>
Subject: Re: [BUG] Kernel panic when using Hibernation on kernel 6.1.25

Hi!

> 
> We have CONFIG_KFENCE enabled, and KFENCE detects use-after-free, invalid reads, and out-of-bounds reads in safe_copy_page(kernel/power/snapshot.c).
> 
> Do you know why hibernation encounters these problems when entering
> suspend?

Hibernation will be hard to make cooperating with KFENCE. Just disable
one of them :-).

Alternatively, go to latest mainline and start fixing stuff.

Best regards,
								Pavel
-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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