Re: [syzbot] possible deadlock in ext4_bmap

[Theodore Ts'o]

On Mon, Aug 08, 2022 at 12:33:22AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    ca688bff68bc Add linux-next specific files for 20220808
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=177eb001080000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=4c20e006003cdecb
> dashboard link: https://syzkaller.appspot.com/bug?extid=9543479984ae9e576000
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

#syz fix: ext4, jbd2: add an optimized bmap for the journal inode