netdev - Re: WARNING in ext4_da_update_reserve

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Date:   Sat, 4 Apr 2020 14:37:07 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     syzbot <syzbot+67e4f16db666b1c8253c@...kaller.appspotmail.com>
Cc:     a@...table.cc, adilger.kernel@...ger.ca,
        b.a.t.m.a.n@...tynna.open-mesh.org, benh@...nel.crashing.org,
        davem@...emloft.net, linux-ext4@...r.kernel.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        mareklindner@...mailbox.ch, mpe@...erman.id.au,
        muriloo@...ux.ibm.com, netdev@...r.kernel.org, paulus@...ba.org,
        sw@...onwunderlich.de, syzkaller-bugs@...glegroups.com
Subject: Re: WARNING in ext4_da_update_reserve_space

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev

I'm curious why this is only showing up as failing on next-next.
Let's see if it fails on the ext4.git tree.

>From the bisect logs syzbot is able to repro on all of v5.x and
v4.20.0.  However, I'm not able to repro it using kvm with either
v5.6-rc4 or the tip of the ext4 git tree.  So let's see what syzbot
can do with the tip of the dev tree.

						- Ted