linux-kernel - Re: [PATCH 0/2] riscv: fix debug

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Date: Wed, 22 May 2024 23:51:47 +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, alexghiti@...osinc.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] riscv: fix debug_pagealloc

Hello:

This series was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@...osinc.com>:

On Wed, 15 May 2024 07:50:38 +0200 you wrote:
> The debug_pagealloc feature is not functional on RISCV. With this feature
> enabled (CONFIG_DEBUG_PAGEALLOC=y and debug_pagealloc=on), kernel crashes
> early during boot.
> 
> QEMU command that can reproduce this problem:
>    qemu-system-riscv64 -machine virt \
>    -kernel Image \
>    -append "console=ttyS0 root=/dev/vda debug_pagealloc=on" \
>    -nographic \
>    -drive "file=root.img,format=raw,id=hd0" \
>    -device virtio-blk-device,drive=hd0 \
>    -m 4G \
> 
> [...]

Here is the summary with links:
  - [1/2] riscv: force PAGE_SIZE linear mapping if debug_pagealloc is enabled
    https://git.kernel.org/riscv/c/c67ddf59ac44
  - [2/2] riscv: rewrite __kernel_map_pages() to fix sleeping in invalid context
    https://git.kernel.org/riscv/c/fb1cf0878328

You are awesome, thank you!
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