linux-kernel - Re: [bisected] ext4 corruption on parisc since 6.12

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Message-ID: <CA+=Fv5Qy0818xS3uW2bh2nVpy-3COUzbq5X0JPY6=YzbfYgNOA@mail.gmail.com>
Date: Mon, 2 Dec 2024 07:30:19 +0100
From: Magnus Lindholm <linmag7@...il.com>
To: matoro <matoro_mailinglist_kernel@...oro.tk>
Cc: John David Anglin <dave.anglin@...l.net>, Linux Parisc <linux-parisc@...r.kernel.org>, 
	deller@...nel.org, Deller <deller@....de>, Sam James <sam@...too.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [bisected] ext4 corruption on parisc since 6.12

On Mon, Dec 2, 2024 at 5:55 AM matoro
<matoro_mailinglist_kernel@...oro.tk> wrote:
>
> Hmm, this is my config, also on an rp3440:
>
> #
> # Timers subsystem
> #
> CONFIG_HZ_PERIODIC=y
> # CONFIG_NO_HZ_IDLE is not set
> # CONFIG_NO_HZ is not set
> # CONFIG_HIGH_RES_TIMERS is not set
> # end of Timers subsystem
>
> lindholm can confirm on their hardware/config.  Maybe you can try that and
> see if you can reproduce?  I will try your config as well.

Hi, I'm on a HPC8000 "parisc64 PA8800 (Mako) 9000/785/C8000". I can confirm
that building a kernel CONFIG_SMP=n will mitigate this problem.
I haven't messed around with the config in the Timer subsystem so in my case the
parameters suggested are unset. (my config looks like matoros)

Magnus Lindholm