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From: Linus Walleij <linus.walleij@linaro.org>
To: Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: linux-arm-kernel@lists.infradead.org,
	"Andrew Lunn" <andrew@lunn.ch>,
	"Gregory Clement" <gregory.clement@bootlin.com>,
	"Sebastian Hesselbarth" <sebastian.hesselbarth@gmail.com>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Marek Behún" <kabel@kernel.org>, "Pali Rohár" <pali@kernel.org>
Subject: Re: [PATCH 0/2] Fix kernel splats on boot with armada-37xx irqchip driver
Date: Mon, 18 Jul 2022 15:43:19 +0200	[thread overview]
Message-ID: <CACRpkdZ4tdKwYBaTGzc4DX6H8Bsib1cDLkTnpTiipCL7uFquXQ@mail.gmail.com> (raw)
In-Reply-To: <20220716233745.1704677-1-vladimir.oltean@nxp.com>

On Sun, Jul 17, 2022 at 1:38 AM Vladimir Oltean <vladimir.oltean@nxp.com> wrote:

> Due to these splats on boot, lockdep disables itself on Armada 37xx and
> we fail to see further useful information about real deadlocks.
>
> For those in doubt, the approach to use raw spinlocks for irqchip
> drivers has been previously discussed here and doesn't seem too
> controversial.
> https://lore.kernel.org/lkml/20210825205041.927788-1-vladimir.oltean@nxp.com/
>
> Tested on the Turris MOX board.
>
> Vladimir Oltean (2):
>   pinctrl: armada-37xx: make irq_lock a raw spinlock to avoid invalid
>     wait context
>   pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid
>     wait context

Patches applied for fixes so they get some rotation in linux-next.

Reviewers have some days to react before I send this to Torvalds.

Should these even be tagged for stable?

Yours,
Linus Walleij

WARNING: multiple messages have this Message-ID (diff)
From: Linus Walleij <linus.walleij@linaro.org>
To: Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: linux-arm-kernel@lists.infradead.org,
	"Andrew Lunn" <andrew@lunn.ch>,
	"Gregory Clement" <gregory.clement@bootlin.com>,
	"Sebastian Hesselbarth" <sebastian.hesselbarth@gmail.com>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Marek Behún" <kabel@kernel.org>, "Pali Rohár" <pali@kernel.org>
Subject: Re: [PATCH 0/2] Fix kernel splats on boot with armada-37xx irqchip driver
Date: Mon, 18 Jul 2022 15:43:19 +0200	[thread overview]
Message-ID: <CACRpkdZ4tdKwYBaTGzc4DX6H8Bsib1cDLkTnpTiipCL7uFquXQ@mail.gmail.com> (raw)
In-Reply-To: <20220716233745.1704677-1-vladimir.oltean@nxp.com>

On Sun, Jul 17, 2022 at 1:38 AM Vladimir Oltean <vladimir.oltean@nxp.com> wrote:

> Due to these splats on boot, lockdep disables itself on Armada 37xx and
> we fail to see further useful information about real deadlocks.
>
> For those in doubt, the approach to use raw spinlocks for irqchip
> drivers has been previously discussed here and doesn't seem too
> controversial.
> https://lore.kernel.org/lkml/20210825205041.927788-1-vladimir.oltean@nxp.com/
>
> Tested on the Turris MOX board.
>
> Vladimir Oltean (2):
>   pinctrl: armada-37xx: make irq_lock a raw spinlock to avoid invalid
>     wait context
>   pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid
>     wait context

Patches applied for fixes so they get some rotation in linux-next.

Reviewers have some days to react before I send this to Torvalds.

Should these even be tagged for stable?

Yours,
Linus Walleij

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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2022-07-18 13:43 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-16 23:37 [PATCH 0/2] Fix kernel splats on boot with armada-37xx irqchip driver Vladimir Oltean
2022-07-16 23:37 ` Vladimir Oltean
2022-07-16 23:37 ` [PATCH 1/2] pinctrl: armada-37xx: make irq_lock a raw spinlock to avoid invalid wait context Vladimir Oltean
2022-07-16 23:37   ` Vladimir Oltean
2022-07-16 23:37 ` [PATCH 2/2] pinctrl: armada-37xx: use raw spinlocks for regmap " Vladimir Oltean
2022-07-16 23:37   ` Vladimir Oltean
2022-07-18 13:43 ` Linus Walleij [this message]
2022-07-18 13:43   ` [PATCH 0/2] Fix kernel splats on boot with armada-37xx irqchip driver Linus Walleij
2022-07-18 14:06   ` Vladimir Oltean
2022-07-18 14:06     ` Vladimir Oltean

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