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Mon, 9 Jan 2023 20:33:25 +0000 Received: from BY5PR11MB3911.namprd11.prod.outlook.com ([fe80::ec2f:4a87:326b:2610]) by BY5PR11MB3911.namprd11.prod.outlook.com ([fe80::ec2f:4a87:326b:2610%7]) with mapi id 15.20.5986.018; Mon, 9 Jan 2023 20:33:25 +0000 Message-ID: <36d58ee5-1004-6a20-a6e4-cf8e910c2c47@intel.com> Date: Mon, 9 Jan 2023 12:33:23 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.6.1 Content-Language: en-GB To: Jani Nikula , Tvrtko Ursulin , Michal Wajdeczko , References: <20221118015858.2548106-1-John.C.Harrison@Intel.com> <20221118015858.2548106-5-John.C.Harrison@Intel.com> <48f594de-9682-4b60-f934-9420d02b405e@intel.com> <4579b7e8-eae7-b760-66aa-b01273d18aab@intel.com> <9a5a84be-a5ae-7be2-f522-5e976511e4e1@intel.com> <143a660d-de2d-a77a-b490-8ad2add80420@linux.intel.com> <467f47f4-c30f-16ba-3330-a3d4752366a8@intel.com> <127d50a6-b0c4-b87b-ddf5-6bd121d53f3c@intel.com> <874jt02gk8.fsf@intel.com> From: John Harrison In-Reply-To: <874jt02gk8.fsf@intel.com> Content-Type: text/plain; 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>>>>>> i915 0000:00:02.0: [drm:intel_disable_shared_dpll [i915]] disabling >>>>>> PORT PLL B >>>>> Plan is to not touch outside gt/. >> For some unexplicable reason that means it is almost impossible to see >> the actual problems in most CI dmesg logs because they are swamped with >> irrelevant display messages that cannot be filtered out. For example, I >> recently manually grep'd out all the display spam from a bug report log. >> The dmesg file went from 12MB to 700KB. That is a significant problem >> that makes bug triage way harder than it needs to be. > You can adjust drm.debug module parameter to get rid of almost all > display debugs. They're logged using the appropriate debug categories. No, you can't. See above comment about 'most CI dmesg logs'. This is when trying to triage bugs created by the CI systems. In that case, the log already exists and it was generated at full debug and it is tens if not hundreds of MBs in size. And there is no single tag attached to the display messages to run 'grep -v' on. They are just a random collection of disparate function names. John. > > > BR, > Jani. > >