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Message-ID: <d51ec9a1-5221-4005-9980-8258df8b5102@roeck-us.net>
Date: Wed, 20 Mar 2024 08:46:20 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
 Linus Torvalds <torvalds@...uxfoundation.org>,
 Uros Bizjak <ubizjak@...il.com>, linux-sparse@...r.kernel.org,
 lkp@...el.com, oe-kbuild-all@...ts.linux.dev
Subject: Re: [patch 5/9] x86: Cure per CPU madness on UP

On 3/20/24 01:58, Thomas Gleixner wrote:
> On Fri, Mar 15 2024 at 09:17, Guenter Roeck wrote:
>> I don't know the code well enough to determine what is wrong.
>> Please let me know what I can do to help debugging the problem.
> 
> Could you provide me the config and the qemu command line?
> 

defconfig-CONFIG_SMP and

qemu-system-x86_64 -kernel arch/x86/boot/bzImage -cpu Haswell \
      --append "console=ttyS0" -nographic -monitor none

The cpu doesn't really matter as long as it is an Intel CPU.
A root file system isn't needed since the boot doesn't get that far.

Guenter


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