linux-kernel - Re: [bug-report] task info hung problem in fb_deferred_io

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Message-ID: <20240418160652.68df1a86@namcao>
Date: Thu, 18 Apr 2024 16:06:52 +0200
From: Nam Cao <namcao@...utronix.de>
To: Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
Cc: jayalk@...works.biz, Daniel Vetter <daniel@...ll.ch>, deller@....de,
 linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 tiwai@...e.de, bigeasy@...utronix.de, patrik.r.jakobsson@...il.com, LKML
 <linux-kernel@...r.kernel.org>, Vegard Nossum <vegard.nossum@...cle.com>,
 George Kennedy <george.kennedy@...cle.com>, Darren Kenny
 <darren.kenny@...cle.com>, chuansheng.liu@...el.com
Subject: Re: [bug-report] task info hung problem in fb_deferred_io_work()

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