Date: Fri, 17 Nov 2017 17:54:03 -0800 From: Patrick McLean <chutzpah@...too.org> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Kees Cook <keescook@...omium.org>, Emese Revfy <re.emese@...il.com>, Al Viro <viro@...iv.linux.org.uk>, Bruce Fields <bfields@...hat.com>, "Darrick J. Wong" <darrick.wong@...cle.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux NFS Mailing List <linux-nfs@...r.kernel.org>, stable <stable@...r.kernel.org>, Thorsten Leemhuis <regressions@...mhuis.info>, "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com> Subject: Re: [nfsd4] potentially hardware breaking regression in 4.14-rc and 4.13.11 On 2017-11-17 04:55 PM, Linus Torvalds wrote: > On Fri, Nov 17, 2017 at 4:27 PM, Patrick McLean <chutzpah@...too.org> wrote: >> >> I am still getting the crash at d9e12200852d, I figured I would >> double-check the "good" and "bad" kernels before starting a full bisect. > > .. but without GCC_PLUGIN_RANDSTRUCT it's solid? Yes, without GCC_PLUGIN_RANDSTRUCT it's solid. > Kees removed even the baseline "randomize pure function pointer > structures", so at that commit, nothing should be randomized. > > But maybe the plugin code itself ends up confusing gcc somehow? > > Even when it doesn't actually do that "relayout_struct()" on the > structure, it always does those TYPE_ATTRIBUTES() games.
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