From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 3 Jan 2018 16:38:30 -0800 From: Benjamin Gilbert To: Andy Lutomirski Cc: Thomas Gleixner , Ingo Molnar , Greg Kroah-Hartman , x86@kernel.org, LKML , linux-mm@kvack.org, stable@vger.kernel.org, Andy Lutomirski , Dave Hansen , Peter Zijlstra Subject: Re: "bad pmd" errors + oops with KPTI on 4.14.11 after loading X.509 certs Message-ID: <20180104003830.GB1654@trogon.sfo.coreos.systems> References: <20180103084600.GA31648@trogon.sfo.coreos.systems> <20180103092016.GA23772@kroah.com> <20180103154833.fhkbwonz6zhm26ax@gmail.com> <20180103223222.GA22901@trogon.sfo.coreos.systems> <20180103224902.GB22901@trogon.sfo.coreos.systems> <69DD36C3-193E-4DCA-91A6-915BF3B434F7@amacapital.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <69DD36C3-193E-4DCA-91A6-915BF3B434F7@amacapital.net> Sender: owner-linux-mm@kvack.org List-ID: On Wed, Jan 03, 2018 at 04:27:04PM -0800, Andy Lutomirski wrote: > How much memory does the affected system have? It sounds like something > is mapped in the LDT region and is getting corrupted because the LDT code > expects to own that region. We've seen this on systems from 1 to 7 GB. --Benjamin Gilbert -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org