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bh=wF7wLYknrAguQRg8tSTIkfoRb2Q1jL2Myx81XhHaTX0=; b=oKiWwFhuFnaRiO1kjFb4IaFnPp74wCiHDqxVo31aYCa/x9yW53jaoZemMZ/Ytsy1xU i7ppC6XDSMB5MIf78I7EjTAdfSkv99Pq2/GuZJ44d4J0F79Kkc6EZzKeH8PNco+BlNs5 HBgmjZ9CduZDA8m8JRqR0p0Gufe+2uVzTiW8Nr64iBfSQUSJ7Fgm8GCKOWN0URa7PVBJ LvgBcH32sZIhddpwrar/pLBzTcpMZVK7GPwv2B8p6EyqPXYr/h2SQBbxErTVZV+05cc0 vz84z/q6GixVC301gFq9+BGJrZMNozitsVS1bskduyEtgigPcMKRUkG8iGg/ktqoLL2H uxoA== X-Gm-Message-State: AOAM5335isCkL/kW372/jm9bdsR0C6OqOc04ZNzeGQIZBEVeYjUidON1 gHXVGBPX5iPDki6e4ttuV+uno8oTeNSLQMn1q8M= X-Received: by 2002:a25:4489:: with SMTP id r131mr8279192yba.538.1644196736547; Sun, 06 Feb 2022 17:18:56 -0800 (PST) MIME-Version: 1.0 References: <20220205185909.878643-1-nunes.erico@gmail.com> In-Reply-To: <20220205185909.878643-1-nunes.erico@gmail.com> From: Qiang Yu Date: Mon, 7 Feb 2022 09:18:45 +0800 Message-ID: Subject: Re: [PATCH] lima: avoid error task dump attempt when not enabled To: Erico Nunes Cc: dri-devel , David Airlie , Daniel Vetter , lima@lists.freedesktop.org, Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no 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 Looks good for me, patch is: Reviewed-by: Qiang Yu On Sun, Feb 6, 2022 at 2:59 AM Erico Nunes wrote: > > Currently when users try to run an application with lima and that hits > an issue such as a timeout, a message saying "fail to save task state" > and "error task list is full" is shown in dmesg. > > The error task dump is a debug feature disabled by default, so the > error task list is usually not going to be available at all. > The message can be misleading and creates confusion in bug reports. > > We can avoid that code path and that particular message when the user > has not explicitly set the max_error_tasks parameter to enable the > feature. > > Signed-off-by: Erico Nunes > --- > drivers/gpu/drm/lima/lima_sched.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c > index 5612d73f238f..12437e42cc76 100644 > --- a/drivers/gpu/drm/lima/lima_sched.c > +++ b/drivers/gpu/drm/lima/lima_sched.c > @@ -409,7 +409,8 @@ static enum drm_gpu_sched_stat lima_sched_timedout_job(struct drm_sched_job *job > > drm_sched_increase_karma(&task->base); > > - lima_sched_build_error_task_list(task); > + if (lima_max_error_tasks) > + lima_sched_build_error_task_list(task); > > pipe->task_error(pipe); > > -- > 2.34.1 >