linux-kernel - Re: [syzbot] [iomap?] [xfs?] WARNING in iomap_write

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Message-ID: <9cf7d25751d18729d14eef077b58c431f2267e0f.camel@gmail.com>
Date: Tue, 27 Aug 2024 19:13:57 +0800
From: Julian Sun <sunjunchao2870@...il.com>
To: Christoph Hellwig <hch@...radead.org>
Cc: syzbot <syzbot+296b1c84b9cbf306e5a0@...kaller.appspotmail.com>, 
	brauner@...nel.org, chandan.babu@...cle.com, djwong@...nel.org, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-xfs@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [iomap?] [xfs?] WARNING in iomap_write_begin

On Tue, 2024-08-27 at 03:13 -0700, Christoph Hellwig wrote:
> On Tue, Aug 27, 2024 at 04:54:41PM +0800, Julian Sun wrote:
> > On Tue, 2024-08-13 at 01:14 -0700, syzbot wrote:
> > Hi,
> > 
> > Is this still a valid problem, or is it a known issue? If it is
> > still
> > valid, I'd like to dig it into, but do you have any ideas or
> > suggestions before I proceed? Thanks.
> 
> I tried to reproduce it locally but haven't hit it.  Once reproduced
> the next debug check would be which of the need zeroing conditions
> triggers.
> 

Hi Christoph, thanks for your reply.

Did you use the config and reproducer provided by syzbot? I can easily
reproduce this issue using the config and c reproducer provided by
syzbot.  

Thanks,
-- 
Julian Sun <sunjunchao2870@...il.com>