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From: Conor Dooley <conor.dooley@microchip.com>
To: Atish Patra <atishp@atishpatra.org>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>,
	Anup Patel <anup@brainfault.org>,
	Song Shuai <suagrfillet@gmail.com>, <robh@kernel.org>,
	Andrew Jones <ajones@ventanamicro.com>, <palmer@rivosinc.com>,
	<jeeheng.sia@starfivetech.com>, <leyfoon.tan@starfivetech.com>,
	<mason.huo@starfivetech.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Guo Ren <guoren@kernel.org>, <linux-riscv@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <regressions@lists.linux.dev>
Subject: Re: Bug report: kernel paniced when system hibernates
Date: Thu, 25 May 2023 13:55:37 +0100	[thread overview]
Message-ID: <20230525-geologist-cottage-a51fa889a3d0@wendy> (raw)
In-Reply-To: <CAOnJCUJQdZZ3kT099Z6gcj+A4fP7ste3dC9QZ8G-2XH7x8DL7A@mail.gmail.com>

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On Wed, May 24, 2023 at 04:53:59PM -0700, Atish Patra wrote:

> We can also just revert the commit
> 3335068 ("riscv: Use PUD/P4D/PGD pages for the linear mapping")
> until a proper solution is available.

I'm actually inclined to go the other day. If hibernation never works
in a released kernel we can't regress it & since we have not settled on
a fix for this yet we don't know whether the fix would then remove
support for hibernation where it used to work.

> IIRC, Alex also suggested the same as there is no measured benefit
> with this patch.
> It is good to have 1GB huge page mappings but it can be delayed until
> we have the fix
> for the hibernation issue.

IIRC it was the 1 GiB hugepages that Alex said were ~worthless.

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  reply	other threads:[~2023-05-25 12:56 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-16  9:24 Bug report: kernel paniced when system hibernates Song Shuai
2023-05-16  9:55 ` JeeHeng Sia
2023-05-16 11:14   ` Alexandre Ghiti
2023-05-16 11:27     ` JeeHeng Sia
2023-05-17  8:33       ` Alexandre Ghiti
2023-05-18  4:06         ` JeeHeng Sia
2023-05-16 11:12 ` Alexandre Ghiti
2023-05-17  8:58   ` Alexandre Ghiti
2023-05-17 11:05     ` Song Shuai
     [not found]       ` <CAHVXubgjgMvFV0MOABbtKr+2TH85+0kow7wOrjxFCP5iXt1saQ@mail.gmail.com>
2023-05-17 14:42         ` Fwd: " Alexandre Ghiti
2023-05-18  1:29           ` JeeHeng Sia
2023-05-18  9:13             ` Alexandre Ghiti
2023-05-18  3:29           ` Song Shuai
2023-05-18 11:54             ` Alexandre Ghiti
2023-05-17 11:27     ` Conor Dooley
2023-05-17 14:55       ` Alexandre Ghiti
2023-05-18  6:53         ` Anup Patel
2023-05-18  7:59           ` Conor Dooley
2023-05-18  8:41             ` Alexandre Ghiti
2023-05-18 10:35               ` Conor Dooley
2023-05-18 11:58                 ` Alexandre Ghiti
2023-05-24 23:53                   ` Atish Patra
2023-05-25 12:55                     ` Conor Dooley [this message]
2023-05-18 12:21                 ` JeeHeng Sia
2023-05-18 12:09           ` Alexandre Ghiti
2023-05-18 14:04             ` Anup Patel
2023-05-24 13:49               ` Conor Dooley
2023-05-24 13:57                 ` Alexandre Ghiti
2023-05-24 15:59                   ` Conor Dooley
2023-05-24 23:45               ` Atish Patra
2023-05-25 13:08                 ` Conor Dooley
2023-05-25 13:21                   ` Anup Patel
2023-05-25 13:37                     ` Conor Dooley
2023-05-25 13:43                       ` Anup Patel
2023-05-25 13:55                         ` Conor Dooley
2023-05-25 13:59                           ` Anup Patel
2023-05-25 14:20                             ` Conor Dooley
2023-05-25 17:39                               ` Atish Patra
2023-05-25 18:22                                 ` Conor Dooley
2023-05-25 18:37                                   ` Atish Patra
2023-05-25 18:39                                     ` Conor Dooley
2023-05-25 20:06                                       ` Atish Patra
2023-05-25 21:24                                         ` Conor Dooley
2023-05-26 13:14                                           ` Alexandre Ghiti
2023-05-26 14:59                                             ` Conor Dooley
2023-05-26 15:12                                               ` Alexandre Ghiti
2023-05-26 15:17                                                 ` Anup Patel
2023-05-26 15:22                                                   ` Alexandre Ghiti
2023-05-26 18:48                                                     ` Atish Patra
2023-05-16 11:35 ` Conor Dooley

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