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From: Thomas Gleixner <tglx@linutronix.de>
To: Mark Brown <broonie@kernel.org>, Anup Patel <apatel@ventanamicro.com>
Cc: Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org, hpa@zytor.com, Marc Zyngier <maz@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Andrew Lunn <andrew@lunn.ch>,
	Gregory Clement <gregory.clement@bootlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Atish Patra <atishp@atishpatra.org>,
	Andrew Jones <ajones@ventanamicro.com>,
	Sunil V L <sunilvl@ventanamicro.com>,
	Anup Patel <anup@brainfault.org>,
	linux-riscv@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, imx@lists.linux.dev
Subject: Re: [PATCH v6 02/10] irqchip/irq-msi-lib: Optionally set default irq_eoi/irq_ack
Date: Thu, 20 Feb 2025 15:21:18 +0100	[thread overview]
Message-ID: <878qq0itnl.ffs@tglx> (raw)
In-Reply-To: <87jz9kiuvu.ffs@tglx>

On Thu, Feb 20 2025 at 14:54, Thomas Gleixner wrote:
> On Wed, Feb 19 2025 at 14:41, Mark Brown wrote:
>> On Mon, Feb 17, 2025 at 02:26:48PM +0530, Anup Patel wrote:
>> I'm seeing boot regressions with qemu on arm64 in -next which bisect
>> down to this patch.  We hit a NULL pointer dereference:
>>
>> <6>[    0.898900] virtio_blk virtio1: 1/0/0 default/read/poll queues
>> <5>[    0.910197] virtio_blk virtio1: [vda] 3906250 512-byte logical blocks (2.00 GB/1.86 GiB)
>> <1>[    0.924459] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
>> <1>[    0.924508] Mem abort info:
>> <1>[    0.924521]   ESR = 0x000000008600002b
>> <1>[    0.924559]   EC = 0x21: IABT (current EL), IL = 32 bits
>> <1>[    0.924580]   SET = 0, FnV = 0
>> <1>[    0.924597]   EA = 0, S1PTW = 0
>> <1>[    0.924616]   FSC = 0x2b: level -1 translation fault
>> <1>[    0.924667] [0000000000000000] user address but active_mm is swapper
>> <0>[    0.924833] Internal error: Oops: 000000008600002b [#1] PREEMPT
>> SMP
>
> Uuurg. I wish I had double checked that the final submitted patch covers
> _ALL_ incarnations of this. The below delta patch should address it.

I'll redo the branch accordingly.

Thanks,

         tglx

WARNING: multiple messages have this Message-ID (diff)
From: Thomas Gleixner <tglx@linutronix.de>
To: Mark Brown <broonie@kernel.org>, Anup Patel <apatel@ventanamicro.com>
Cc: Andrew Lunn <andrew@lunn.ch>,
	imx@lists.linux.dev, Dave Hansen <dave.hansen@linux.intel.com>,
	hpa@zytor.com, linux-riscv@lists.infradead.org,
	Marc Zyngier <maz@kernel.org>,
	Gregory Clement <gregory.clement@bootlin.com>,
	x86@kernel.org, Andrew Jones <ajones@ventanamicro.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Borislav Petkov <bp@alien8.de>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Atish Patra <atishp@atishpatra.org>,
	Ingo Molnar <mingo@redhat.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Palmer Dabbelt <palmer@dabbelt.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Anup Patel <anup@brainfault.org>,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Shawn Guo <shawnguo@kernel.org>
Subject: Re: [PATCH v6 02/10] irqchip/irq-msi-lib: Optionally set default irq_eoi/irq_ack
Date: Thu, 20 Feb 2025 15:21:18 +0100	[thread overview]
Message-ID: <878qq0itnl.ffs@tglx> (raw)
In-Reply-To: <87jz9kiuvu.ffs@tglx>

On Thu, Feb 20 2025 at 14:54, Thomas Gleixner wrote:
> On Wed, Feb 19 2025 at 14:41, Mark Brown wrote:
>> On Mon, Feb 17, 2025 at 02:26:48PM +0530, Anup Patel wrote:
>> I'm seeing boot regressions with qemu on arm64 in -next which bisect
>> down to this patch.  We hit a NULL pointer dereference:
>>
>> <6>[    0.898900] virtio_blk virtio1: 1/0/0 default/read/poll queues
>> <5>[    0.910197] virtio_blk virtio1: [vda] 3906250 512-byte logical blocks (2.00 GB/1.86 GiB)
>> <1>[    0.924459] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
>> <1>[    0.924508] Mem abort info:
>> <1>[    0.924521]   ESR = 0x000000008600002b
>> <1>[    0.924559]   EC = 0x21: IABT (current EL), IL = 32 bits
>> <1>[    0.924580]   SET = 0, FnV = 0
>> <1>[    0.924597]   EA = 0, S1PTW = 0
>> <1>[    0.924616]   FSC = 0x2b: level -1 translation fault
>> <1>[    0.924667] [0000000000000000] user address but active_mm is swapper
>> <0>[    0.924833] Internal error: Oops: 000000008600002b [#1] PREEMPT
>> SMP
>
> Uuurg. I wish I had double checked that the final submitted patch covers
> _ALL_ incarnations of this. The below delta patch should address it.

I'll redo the branch accordingly.

Thanks,

         tglx

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linux-riscv@lists.infradead.org
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  reply	other threads:[~2025-02-20 14:21 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-17  8:56 [PATCH v6 00/10] RISC-V IMSIC driver improvements Anup Patel
2025-02-17  8:56 ` Anup Patel
2025-02-17  8:56 ` [PATCH v6 01/10] irqchip/riscv-imsic: Set irq_set_affinity for IMSIC base Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] irqchip/riscv-imsic: Set irq_set_affinity() " tip-bot2 for Andrew Jones
2025-02-17  8:56 ` [PATCH v6 02/10] irqchip/irq-msi-lib: Optionally set default irq_eoi/irq_ack Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] irqchip/irq-msi-lib: Optionally set default irq_eoi()/irq_ack() tip-bot2 for Thomas Gleixner
2025-02-19 14:41   ` [PATCH v6 02/10] irqchip/irq-msi-lib: Optionally set default irq_eoi/irq_ack Mark Brown
2025-02-19 14:41     ` Mark Brown
2025-02-20 13:54     ` Thomas Gleixner
2025-02-20 13:54       ` Thomas Gleixner
2025-02-20 14:21       ` Thomas Gleixner [this message]
2025-02-20 14:21         ` Thomas Gleixner
2025-02-20 14:26   ` [tip: irq/drivers] irqchip/irq-msi-lib: Optionally set default irq_eoi()/irq_ack() tip-bot2 for Thomas Gleixner
2025-02-17  8:56 ` [PATCH v6 03/10] irqchip/riscv-imsic: Move to common MSI lib Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] irqchip/riscv-imsic: Move to common MSI library tip-bot2 for Thomas Gleixner
2025-02-20 14:26   ` tip-bot2 for Thomas Gleixner
2025-02-17  8:56 ` [PATCH v6 04/10] genirq: Introduce common irq_force_complete_move() implementation Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] " tip-bot2 for Thomas Gleixner
2025-02-20 14:26   ` tip-bot2 for Thomas Gleixner
2025-04-03 13:13   ` [PATCH v6 04/10] " Frank Scheiner
2025-04-03 13:13     ` Frank Scheiner
2025-04-03 15:03     ` Thomas Gleixner
2025-04-03 15:03       ` Thomas Gleixner
2025-04-03 17:46       ` Frank Scheiner
2025-04-03 17:46         ` Frank Scheiner
2025-04-04 14:51         ` [PATCH] genirq/migration: Use irqd_get_parent_data() in irq_force_complete_move() Thomas Gleixner
2025-04-04 14:51           ` Thomas Gleixner
2025-04-04 15:14           ` [tip: irq/urgent] " tip-bot2 for Thomas Gleixner
2025-02-17  8:56 ` [PATCH v6 05/10] genirq: Introduce irq_can_move_in_process_context() Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] " tip-bot2 for Anup Patel
2025-02-20 14:26   ` tip-bot2 for Anup Patel
2025-02-17  8:56 ` [PATCH v6 06/10] RISC-V: Select GENERIC_PENDING_IRQ Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] RISC-V: Select CONFIG_GENERIC_PENDING_IRQ tip-bot2 for Anup Patel
2025-02-20 14:26   ` tip-bot2 for Anup Patel
2025-02-17  8:56 ` [PATCH v6 07/10] irqchip/riscv-imsic: Separate next and previous pointers in IMSIC vector Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] " tip-bot2 for Anup Patel
2025-02-20 14:26   ` tip-bot2 for Anup Patel
2025-02-17  8:56 ` [PATCH v6 08/10] irqchip/riscv-imsic: Implement irq_force_complete_move() for IMSIC Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] " tip-bot2 for Anup Patel
2025-02-20 14:26   ` tip-bot2 for Anup Patel
2025-02-17  8:56 ` [PATCH v6 09/10] irqchip/riscv-imsic: Replace hwirq with irq in the IMSIC vector Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] irqchip/riscv-imsic: Avoid interrupt translation in interrupt handler tip-bot2 for Anup Patel
2025-02-20 14:26   ` tip-bot2 for Anup Patel
2025-02-17  8:56 ` [PATCH v6 10/10] irqchip/riscv-imsic: Special handling for non-atomic device MSI update Anup Patel
2025-02-17  8:56   ` Anup Patel
2025-02-18  9:03   ` [tip: irq/drivers] " tip-bot2 for Anup Patel
2025-02-20 14:26   ` tip-bot2 for Anup Patel

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