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Wyatt IV" To: Sebastian Andrzej Siewior Cc: linux-rt-users@vger.kernel.org, LKML , kernel-rts-sst , jlelli@redhat.com Subject: Re: Crash with 6.6.0-rc1-rt1 and several i915 locking call traces with v6.5.2-rt8 and gnome-shell on Alder Lake laptop Message-ID: References: <20230922110720.AZ03l3A9@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Mon, 02 Oct 2023 06:58:39 -0700 (PDT) On Mon, Oct 02, 2023 at 11:45:45AM +0200, Sebastian Andrzej Siewior wrote: > I looked at the traces in this email and they originate from a > might_sleep() in guc_context_set_prio(). The reason is that they check > at the atomic/interrupt state to figure out if they can sleep or not. > Both checks don't work on RT as intended and the former has a not to not > be used in drivers… > > The snippet below should cure this. Could you test, please. > > Sebastian > I tested this at both boot and suspend/resume. No call traces reported. Thank you Sebastian.