linux-ext4 - Re: [syzbot] kernel BUG in ext4_do

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Message-ID: <20250509071106.383057-1-richard120310@gmail.com>
Date: Fri,  9 May 2025 15:11:06 +0800
From: I Hsin Cheng <richard120310@...il.com>
To: syzbot+d1da16f03614058fdc48@...kaller.appspotmail.com
Cc: tytso@....edu,
	adilger.kernel@...ger.ca,
	linux-ext4@...r.kernel.org,
	syzkaller-bugs@...glegroups.com,
	I Hsin Cheng <richard120310@...il.com>
Subject: Re: [syzbot] kernel BUG in ext4_do_writepages

Hello,

I've been looking into the problem so far, may I ask why
EXT4_STATE_MAY_INLINE_DATA isn't supposed to be set when
the inode has inline data ?

In context such as ext4_conver_inline_data(), the code there
implies it is possible for an inode to have both EXT4_INODE_INLINE_DATA
set and EXT4_STATE_MAY_INLINE_DATA set isn't it ? or my understanding
is wrong, please correct me, I woud love to learn.

Best regards,
I Hsin Cheng.