Date: Sat, 11 Nov 2017 01:36:47 +0900 From: Hector Martin 'marcan' <marcan@...can.st> To: Andy Lutomirski <luto@...capital.net> Cc: LKML <linux-kernel@...r.kernel.org>, "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>, X86 ML <x86@...nel.org> Subject: Re: Re: vDSO maximum stack usage, stack probes, and -fstack-check On 2017-11-11 01:02, Hector Martin 'marcan' wrote: > Not entirely sure what's going on here. Actually, if you think about it, it doesn't matter that it skips the first page, since it's probing one page more. That just means the caller will have probed the previous page. So ultimately you're just probing ahead of where you need to, but that should be OK. -- Hector Martin "marcan" (marcan@...can.st) Public Key: https://mrcn.st/pub
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