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Date: Tue, 4 Apr 2017 23:53:49 +0200 From: Joerg Roedel <joro@...tes.org> To: Dave Hansen <dave.hansen@...ux.intel.com> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org, Dmitry Safonov <0x7f454c46@...il.com>, Joerg Roedel <jroedel@...e.de>, linux-kernel@...r.kernel.org, Borislav Petkov <bp@...e.de> Subject: Re: [PATCH] x86/signals: Fix lower/upper bound reporting in compat siginfo On Tue, Apr 04, 2017 at 09:56:45AM -0700, Dave Hansen wrote: > On 04/04/2017 09:15 AM, Joerg Roedel wrote: > > Put the right values from the original siginfo into the > > userspace compat-siginfo. > > > > This fixes the 32-bit mpx tabletest on a 64-bit kernel. > > Ugh, thanks for finding that. Yeah, I was also looking at the vaddrexhaust test, but is that supposed to work? It does pretty weird things at least, on 64 bit the function effectivly does nothing because nr_to_fill evaluates to 0 there, and on 32 bit it gets a (probably #BF) exception which is not caught, so that the test fails. I am a bit confused, but maybe I just didn't stare long enough at it :-) Hope you can sched some light on it. Joerg
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