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([2601:646:c200:1ef2:4d0d:5741:f5e3:172]) by smtp.gmail.com with ESMTPSA id t6sm307950pjg.49.2021.01.11.13.06.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 11 Jan 2021 13:06:55 -0800 (PST) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Andy Lutomirski Mime-Version: 1.0 (1.0) Subject: Re: gdbserver + fsgsbase kaputt Date: Mon, 11 Jan 2021 13:06:54 -0800 Message-Id: References: <20210111200027.GH25645@zn.tnic> Cc: Andy Lutomirski , "Chang S. Bae" , tdevries@suse.com, x86-ml , lkml In-Reply-To: <20210111200027.GH25645@zn.tnic> To: Borislav Petkov X-Mailer: iPhone Mail (18B121) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Jan 11, 2021, at 12:00 PM, Borislav Petkov wrote: > > Or do you mean I should add "unsafe_fsgsbase" to grub cmdline and bisect > with fsgsbase enabled in all test kernels? Yes. But I can also look myself in a bit.