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Date:   Fri, 31 Aug 2018 07:12:44 +0300 (EEST)
From:   Meelis Roos <>
To:     Joerg Roedel <>
cc:     Linux Kernel list <>,, Thomas Gleixner <>
Subject: Re: 32-bit PTI with THP = userspace corruption

> > I am seeing userland corruption and application crashes on multiple 
> > 32-bit machines with 4.19-rc1+git. The machines vary: PII, PIII, P4. 
> > They are all Intel. AMD Duron/Athlon/AthlonMP have been fine in my tests 
> > so far (may be configuration dependent).
> Thanks for the report! I'll try to reproduce the problem tomorrow and
> investigate it. Can you please check if any of the kernel configurations
> that show the bug has CONFIG_X86_PAE set? If not, can you please test
> if enabling this option still triggers the problem?

Will check, but out of my memery there were 2 G3 HP Proliants that did 
not fit into the pattern (problem did not appear). I have more than 4G 
RAM in those and HIGHMEM_4G there, maybe that's it?

Meelis Roos (

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