linux-kernel - Re: [PATCH v13 2/2] x86/sgx: Add an attribute for the amount of SGX memory in a NUMA node

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Message-ID: <b744d47e-4b7f-d372-f8ba-758555c08993@intel.com>
Date:   Fri, 17 Dec 2021 13:17:42 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     Nathan Chancellor <nathan@...nel.org>,
        Jarkko Sakkinen <jarkko@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>, reinette.chatre@...el.com,
        linux-kernel@...r.kernel.org, linux-sgx@...r.kernel.org
Subject: Re: [PATCH v13 2/2] x86/sgx: Add an attribute for the amount of SGX
 memory in a NUMA node

On 12/17/21 11:12 AM, Nathan Chancellor wrote:
> With this patch in -next as commit 50468e431335 ("x86/sgx: Add an
> attribute for the amount of SGX memory in a NUMA node"), this sysfs node
> causes an OOPS for me on at least one of my test systems (Intel based):

Thanks for the report!

Could you share /proc/cpuinfo and a full dmesg from when this happens?
I'm curious if your system has SGX at all and if it had any issues
during initialization.