linux-kernel - Re: [PATCH v2] bpf: Fix bpf_get_smp_processor_id() on !CONFIG

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Message-Id: 
 <173448123077.1129094.278515116622545492.git-patchwork-notify@kernel.org>
Date: Wed, 18 Dec 2024 00:20:30 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Andrea Righi <arighi@...dia.com>
Cc: ast@...nel.org, daniel@...earbox.net, john.fastabend@...il.com,
 andrii@...nel.org, martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org,
 yonghong.song@...ux.dev, kpsingh@...nel.org, sdf@...ichev.me,
 haoluo@...gle.com, jolsa@...nel.org, bpf@...r.kernel.org,
 linux-kernel@...r.kernel.org, andrii.nakryiko@...il.com
Subject: Re: [PATCH v2] bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP

Hello:

This patch was applied to bpf/bpf.git (master)
by Andrii Nakryiko <andrii@...nel.org>:

On Tue, 17 Dec 2024 20:58:13 +0100 you wrote:
> On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP
> disabled can trigger the following bug, as pcpu_hot is unavailable:
> 
>  [    8.471774] BUG: unable to handle page fault for address: 00000000936a290c
>  [    8.471849] #PF: supervisor read access in kernel mode
>  [    8.471881] #PF: error_code(0x0000) - not-present page
> 
> [...]

Here is the summary with links:
  - [v2] bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP
    https://git.kernel.org/bpf/bpf/c/23579010cf0a

You are awesome, thank you!
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