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Re: [PATCH v1 0/2] x86/amd_node: harden amd_smn_init() against Xen dom0 topology
- To: Yazen Ghannam <yazen.ghannam@xxxxxxx>
- From: Jiaqing Zhao <Zhao.Jiaqing@xxxxxxx>
- Date: Tue, 2 Jun 2026 13:28:16 +0800
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- Cc: Penny Zheng <penny.zheng@xxxxxxx>, x86@xxxxxxxxxx, ray.huang@xxxxxxx, Jason.Andryuk@xxxxxxx, stefano.stabellini@xxxxxxx, Mario Limonciello <mario.limonciello@xxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- Delivery-date: Tue, 02 Jun 2026 05:28:45 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hi, Yazen
On 2026-05-19 22:10, Yazen Ghannam wrote:
> On Thu, May 07, 2026 at 04:37:43PM +0800, Jiaqing Zhao wrote:
>> This amd_smn_init div0 oops is also observed on 6.19.14+deb14 (Debian
>> testing)
>> and 6.18.27. Given that 6.18 is LTS, suggesting `Cc: stable@xxxxxxxxxxxxxxx`
>> to get it backported.
>>
>
> Hi Jiaqing,
>
> So is the issue observed with the latest mainline kernel?
>
> Or only with v6.19 and before?
It is observed with both latest mainline and v6.18/6.19. The issue comes with
commit 0a4b61d9c2e49 ("x86/amd_node: Fix AMD root device caching").
Thanks,
Jiaqing
> Thanks,
> Yazen
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