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Mon, 21 Jul 2025 08:38:07 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: T0fa10d1000c4a2fe Date: Mon, 21 Jul 2025 14:37:36 +0200 From: "Arnd Bergmann" To: "Satadru Pramanik" , "Arnd Bergmann" Cc: "Dave Airlie" , "Dave Airlie" , "Ben Skeggs" , "bskeggs@redhat.com" , "open list:DRM DRIVERS" , "open list" , "Lyude Paul" , "nouveau@lists.freedesktop.org" , "Simona Vetter" , "Timur Tabi" , "Thomas Zimmermann" Message-Id: In-Reply-To: References: Subject: Re: [PATCH] drm/nouveau: check ioctl command codes better Content-Type: text/plain Content-Transfer-Encoding: 7bit On Mon, Jul 21, 2025, at 14:22, Satadru Pramanik wrote: > Hello all, > > I suspect this commit in 6.16-rc7 has broken acceleration with Mesa's > nouveau drivers on my machine. > > glxinfo -B reports that I'm using llvmpipe. Thanks for the report! Can you run the failing command with 'strace -f -o logfile.txt -e trace=ioctl ...' to see which command it tries? Either I made a stupid mistake in my patch and don't catch the intended command any more, or the command that gets sent is actually different from the one that the kernel expects. Arnd