linux-kernel - Re: [PATCH v2] riscv: Enable interrupt during exception handling

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Message-Id: 
 <175269600935.1308944.5530274266993935851.git-patchwork-notify@kernel.org>
Date: Wed, 16 Jul 2025 20:00:09 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Nam Cao <namcao@...utronix.de>
Cc: linux-riscv@...ts.infradead.org, paul.walmsley@...ive.com,
 palmer@...belt.com, aou@...s.berkeley.edu, alex@...ti.fr,
 peterz@...radead.org, bigeasy@...utronix.de, clrkwllms@...nel.org,
 rostedt@...dmis.org, linux-rt-devel@...ts.linux.dev,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] riscv: Enable interrupt during exception handling

Hello:

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

On Wed, 25 Jun 2025 10:56:30 +0200 you wrote:
> force_sig_fault() takes a spinlock, which is a sleeping lock with
> CONFIG_PREEMPT_RT=y. However, exception handling calls force_sig_fault()
> with interrupt disabled, causing a sleeping in atomic context warning.
> 
> This can be reproduced using userspace programs such as:
>     int main() { asm ("ebreak"); }
> or
>     int main() { asm ("unimp"); }
> 
> [...]

Here is the summary with links:
  - [v2] riscv: Enable interrupt during exception handling
    https://git.kernel.org/riscv/c/969f028bf2c4

You are awesome, thank you!
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