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Donenfeld" To: Thomas Gleixner Cc: LKML , x86@kernel.org, Filipe Manana Subject: Re: [patch 0/3] x86/fpu: Prevent FPU state corruption Message-ID: References: <20220501192740.203963477@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20220501192740.203963477@linutronix.de> X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, On Sun, May 01, 2022 at 09:31:42PM +0200, Thomas Gleixner wrote: > The recent changes in the random code unearthed a long standing FPU state > corruption due do a buggy condition for granting in-kernel FPU usage. Thanks for working that out. I've been banging my head over [1] for a few days now trying to see if it's a mis-bisect or a real thing. I'll ask Larry to retry with this patchset. Jason [1] https://lore.kernel.org/lkml/7f01221d-f693-adf8-f5a5-d71944b44162@lwfinger.net/