linux-kernel - Re: 4.15-rc6 PTI regression: L1 TLB mismatch MCE on Athlon64

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Date:   Wed, 3 Jan 2018 09:07:00 +0200 (EET)
From:   Meelis Roos <mroos@...ux.ee>
To:     Borislav Petkov <bp@...en8.de>
cc:     Linux Kernel list <linux-kernel@...r.kernel.org>, x86@...nel.org,
        linux-edac@...r.kernel.org, Tom Lendacky <thomas.lendacky@....com>
Subject: Re: 4.15-rc6 PTI regression: L1 TLB mismatch MCE on Athlon64

> > These MCE-s do not happen on 4.14 and 4.15.0-rc4-00041-gace52288edf0. 
> > They do happen on each boot into 4.15-rc6. Will try to bisect.
> 
> Please do. And try -rc5 too.

4.15-rc5 is OK. Will try CONFIG_X86_PTDUMP on the next kernel.
 
> And then Linus' pti merges:
> 
> 52c90f2d32bfa7d6eccd66a56c44ace1f78fbadd
> 5aa90a84589282b87666f92b6c3c917c8080a9bf
> caf9a82657b313106aae8f4a35936c116a152299
> 64a48099b3b31568ac45716b7fafcb74a0c2fcfe


-- 
Meelis Roos (mroos@...ux.ee)