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Peter Anvin" , Linus Torvalds , Peter Zijlstra , Josh Poimboeuf Subject: [PATCH] x86/percpu: Disable named address spaces for KCSAN Date: Mon, 25 Mar 2024 12:01:09 +0100 Message-ID: <20240325110128.615933-1-ubizjak@gmail.com> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" -fsanitize=3Dthread (KCSAN) is at the moment incompatible with named address spaces in a similar way as KASAN - see GCC PR sanitizer/111736: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111736 The patch disables named address spaces with KCSAN. Reported-by: kernel test robot Signed-off-by: Uros Bizjak Cc: Ingo Molnar Cc: Andy Lutomirski Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Josh Poimboeuf Closes: https://lore.kernel.org/oe-lkp/202403251658.8e92a8bc-lkp@intel.com --- arch/x86/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 39886bab943a..4fff6ed46e90 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2439,6 +2439,8 @@ config USE_X86_SEG_SUPPORT # with named address spaces - see GCC PR sanitizer/111736. # depends on !KASAN + # -fsanitize=3Dthread (KCSAN) is also incompatible. + depends on !KCSAN =20 config CC_HAS_SLS def_bool $(cc-option,-mharden-sls=3Dall) --=20 2.44.0