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Mon, 25 Mar 2024 15:26:39 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id 9QttFK+XAWZsCAAAD6G6ig (envelope-from ); Mon, 25 Mar 2024 15:26:39 +0000 Date: Mon, 25 Mar 2024 16:26:40 +0100 Message-ID: <871q7yxrgv.wl-tiwai@suse.de> From: Takashi Iwai To: "Arnd Bergmann" Cc: "Linus Torvalds" , "Brian Gerst" , "Uros Bizjak" , linux-kernel@vger.kernel.org, x86@kernel.org, "Ingo Molnar" , "Thomas Gleixner" , "Borislav Petkov" , "H. Peter Anvin" , mwilck@suse.com, tiwai@suse.de, vbabka@suse.cz, denis.kirjanov@suse.com, nmorey@suse.com Subject: Re: [PATCH v4 00/16] x86-64: Stack protector and percpu improvements In-Reply-To: References: <20240322165233.71698-1-brgerst@gmail.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Authentication-Results: smtp-out2.suse.de; none X-Spam-Level: X-Spam-Score: -3.30 X-Spamd-Result: default: False [-3.30 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; RCPT_COUNT_TWELVE(0.00)[15]; MID_CONTAINS_FROM(1.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_CC(0.00)[linux-foundation.org,gmail.com,vger.kernel.org,kernel.org,linutronix.de,alien8.de,zytor.com,suse.com,suse.de,suse.cz]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-3.00)[100.00%] X-Spam-Flag: NO On Mon, 25 Mar 2024 15:51:30 +0100, Arnd Bergmann wrote: > > On Sat, Mar 23, 2024, at 18:06, Linus Torvalds wrote: > > On Sat, 23 Mar 2024 at 09:16, Linus Torvalds wrote: > > The SLES situation seems somewhat similar, with SLES12 being 4.8.x and > > SLES15 being 7.3. But again with a "Development Tools Module" setup. > > So that *might* argue for 7.3. > > According to https://distrowatch.com/table.php?distribution=sle, they > also provide gcc-12.2.1 with the sp5 update, so we're probably fine. > > On the other hand, I can see that OpenSUSE Leap 15.6 contains > a fairly modern kernel (6.4.x) built with the gcc-7.3 system > compiler, and I think this is the same one as in SLES. > > Not sure if they plan to update the kernel release beyond that, > or how inconvenient it would be for them to require > using the other compiler for future updates, so I've added > the developers that last touched the OpenSUSE kernel RPM > package to Cc here. SLE15-SP6 kernel (based on 6.4.x) is still built with gcc7, currently gcc 7.5, indeed. openSUSE Leap shares the very same kernel, so it's with gcc 7.5, too. Even though gcc-13 is provided as additional compiler package, it's not used for the kernel package build. AFAIK, it's not decided yet about SP7 kernel. But since we take a conservative approach for SLE, I guess SLE15-SP7 will be likely sticking with the old gcc, unless forced to change by some reason. SLE12 is built with the old gcc 4.8, and SLE12-SP5 (based on 4.12) is still actively maintained, but only for a few months until October 2024. The next generation of SLE is built with the latest gcc (gcc-13 for now). So SLE16 will be a totally different story. openSUSE Tumbleweed always uses a bleeding edge compiler (gcc-13), too. Takashi