Messages in this thread |  | | | Date | Wed, 22 Feb 2012 13:32:53 -0800 | | From | Greg Kroah-Hartman <> | | Subject | Re: [PATCH 0/5] i387: stable kernel backport |
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On Wed, Feb 22, 2012 at 01:29:11PM -0800, Linus Torvalds wrote: > On Wed, Feb 22, 2012 at 1:19 PM, Greg Kroah-Hartman > <gregkh@linuxfoundation.org> wrote: > > > > Thanks for doing the backport. Any ideas on how far back this problem > > goes? > > The fundamental bug goes back forever, but happily afaik you can only > *trigger* it by doing FPU accesses from interrupts, and nobody did > that until the AES-NI instructions came about. > > So practically speaking it goes back to the introduction of > CRYPTO_AES_NI_INTEL, in commit 54b6a1bd5364 ("crypto: aes-ni - Add > support to Intel AES-NI instructions for x86_64 platform"). > > Which was merged into 2.6.30. So it still goes back pretty far. > > The good news is that I *think* the whole i387 handling code hasn't > been touched much. But I didn't really check deeply.
Ok, I'll see how far back I can backport it easily, after Peter verifies that this series works for him on his box.
thanks,
greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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