Re: [bug-report] task info hung problem in fb_deferred_io_work()

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To: Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>
Subject: Re: [bug-report] task info hung problem in fb_deferred_io_work()
From: Nam Cao <namcao@xxxxxxxxxxxxx>
Date: Thu, 18 Apr 2024 16:06:52 +0200
Cc: jayalk@xxxxxxxxxxxx, Daniel Vetter <daniel@xxxxxxxx>, deller@xxxxxx, linux-fbdev@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, tiwai@xxxxxxx, bigeasy@xxxxxxxxxxxxx, patrik.r.jakobsson@xxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Vegard Nossum <vegard.nossum@xxxxxxxxxx>, George Kennedy <george.kennedy@xxxxxxxxxx>, Darren Kenny <darren.kenny@xxxxxxxxxx>, chuansheng.liu@xxxxxxxxx
In-reply-to: <271372d6-e665-4e7f-b088-dee5f4ab341a@oracle.com>
References: <271372d6-e665-4e7f-b088-dee5f4ab341a@oracle.com>

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

Follow-Ups:
- Re: [bug-report] task info hung problem in fb_deferred_io_work()
  - From: Harshit Mogalapalli
- Re: [bug-report] task info hung problem in fb_deferred_io_work()
  - From: Takashi Iwai

References:
- [bug-report] task info hung problem in fb_deferred_io_work()
  - From: Harshit Mogalapalli

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