linux-kernel - Re: [PATCH V2 -fixes] riscv: kexec: Avoid deadlock in kexec crash path

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Message-Id: 
 <172009865675.17306.18375440466203340384.git-patchwork-notify@kernel.org>
Date: Thu, 04 Jul 2024 13:10:56 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Song Shuai <songshuaishuai@...ylab.org>
Cc: linux-riscv@...ts.infradead.org, takakura@...inux.co.jp, alex@...ti.fr,
 paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu,
 bhe@...hat.com, akpm@...ux-foundation.org, guoren@...nel.org,
 xianting.tian@...ux.alibaba.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 -fixes] riscv: kexec: Avoid deadlock in kexec crash path

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@...osinc.com>:

On Wed, 26 Jun 2024 10:33:16 +0800 you wrote:
> If the kexec crash code is called in the interrupt context, the
> machine_kexec_mask_interrupts() function will trigger a deadlock while
> trying to acquire the irqdesc spinlock and then deactivate irqchip in
> irq_set_irqchip_state() function.
> 
> Unlike arm64, riscv only requires irq_eoi handler to complete EOI and
> keeping irq_set_irqchip_state() will only leave this possible deadlock
> without any use. So we simply remove it.
> 
> [...]

Here is the summary with links:
  - [V2,-fixes] riscv: kexec: Avoid deadlock in kexec crash path
    https://git.kernel.org/riscv/c/c562ba719df5

You are awesome, thank you!
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