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From: Thomas Gleixner <tglx@linutronix.de>
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To: Christian Heusel <christian@heusel.eu>
Cc: Peter Schneider <pschneider1968@googlemail.com>, LKML
 <linux-kernel@vger.kernel.org>, x86@kernel.org, stable@vger.kernel.org,
 regressions@lists.linux.dev
Subject: Re: Kernel 6.9 regression: X86: Bogus messages from topology detection
In-Reply-To: <20ec1c1a-b804-408f-b279-853579bffc24@heusel.eu>
References: <877cffcs7h.ffs@tglx>
 <16cd76b1-a512-4a7b-a304-5e4e31af3c8a@googlemail.com>
 <ce3abe01-4c37-416e-a5ed-25703318318a@googlemail.com>
 <87zfs78zxq.ffs@tglx>
 <76b1e0b9-26ae-4915-920d-9093f057796b@googlemail.com>
 <87r0dj8ls4.ffs@tglx> <87o78n8fe2.ffs@tglx> <87le3r8dyw.ffs@tglx>
 <4171899b-78cb-4fe2-a0b6-e06844554ed5@heusel.eu>
 <20ec1c1a-b804-408f-b279-853579bffc24@heusel.eu>
Date: Fri, 31 May 2024 10:48:04 +0200
Message-ID: <87cyp28j0b.ffs@tglx>
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Christian!

On Fri, May 31 2024 at 10:16, Christian Heusel wrote:
>> One of the reporters in the Arch Bugtracker with an Intel Core i7-7700k
>> has tested a modified version of this fix[0] with the static change
>> reversed on top of the 6.9.2 stable kernel and reports that the patch
>> does not fix the issue for them. I have attached their output for the
>> patched (dmesg6.9.2-1.5.log) and nonpatched (dmesg6.9.2-1.log) kernel.
>> 
>> Should we also get them to test the mainline version or do you need any
>> other debug output?

Can I get:

    - dmesg from 6.8.y kernel
    - output of cpuid -r
    - content of /sys/kernel/debug/x86/topo/cpus/* (on 6.9.y)

please?

Thanks,

        tglx