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Date: Tue, 29 Apr 2014 22:19:17 -0700 From: "H. Peter Anvin" <hpa@...or.com> To: behanw@...verseincode.com, viro@...iv.linux.org.uk CC: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, dwmw2@...radead.org, Mark Charlebois <charlebm@...il.com> Subject: Re: [PATCH] mbcache: LLVMLinux: Remove double calculation from mbcache On 04/29/2014 06:13 PM, H. Peter Anvin wrote: > I suspect this will generate FP instructions on x86 which will corrupt user space state. This is thus a critical bug!! It looks like at least x86-64 gcc does the evaluation at compile time and there aren't any fp instructions left in the code. However, it should still be fixed. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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