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bh=Idxuchle8AcxxVwUDpWy041qfrtuUfRvGM0E/NVSF/I=; b=EjosluoxqQVNEdbKPkBK1vZISCD5HzUSPH/LPqd0lTe2vCFr85v9qrNJ45ddZJ/CDNZ7tQ Q2F9CN4lLBbnyhDQ== From: Nam Cao To: Harshit Mogalapalli Cc: jayalk@intworks.biz, Daniel Vetter , deller@gmx.de, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, tiwai@suse.de, bigeasy@linutronix.de, patrik.r.jakobsson@gmail.com, LKML , Vegard Nossum , George Kennedy , Darren Kenny , chuansheng.liu@intel.com Subject: Re: [bug-report] task info hung problem in fb_deferred_io_work() Message-ID: <20240418160652.68df1a86@namcao> In-Reply-To: <271372d6-e665-4e7f-b088-dee5f4ab341a@oracle.com> References: <271372d6-e665-4e7f-b088-dee5f4ab341a@oracle.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On 2024-04-18 Harshit Mogalapalli wrote: > While fuzzing 5.15.y kernel with Syzkaller, we noticed a INFO: task hung > bug in fb_deferred_io_work() Which framebuffer device are you using exactly? It is possible that the problem is with the device driver, not core framebuffer. Best regards, Nam