From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+20d7e439f76bbbd863a7@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [f2fs?] WARNING in rcu_sync_dtor
Date: Sat, 27 Jul 2024 09:16:16 +0800 [thread overview]
Message-ID: <20240727011616.2144-1-hdanton@sina.com> (raw)
In-Reply-To: <000000000000b90a8e061e21d12f@google.com>
On Fri, 26 Jul 2024 00:54:21 -0700
> syzbot found the following issue on:
>
> HEAD commit: 1722389b0d86 Merge tag 'net-6.11-rc1' of git://git.kernel...
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=115edac9980000
#syz test upstream 1722389b0d86
--- x/fs/f2fs/super.c
+++ y/fs/f2fs/super.c
@@ -4169,16 +4169,7 @@ void f2fs_handle_critical_error(struct f
*/
if (continue_fs || f2fs_readonly(sb) || shutdown) {
f2fs_warn(sbi, "Stopped filesystem due to reason: %d", reason);
- return;
}
-
- f2fs_warn(sbi, "Remounting filesystem read-only");
- /*
- * Make sure updated value of ->s_mount_flags will be visible before
- * ->s_flags update
- */
- smp_wmb();
- sb->s_flags |= SB_RDONLY;
}
static void f2fs_record_error_work(struct work_struct *work)
--
next prev parent reply other threads:[~2024-07-27 1:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-26 7:54 [syzbot] [f2fs?] WARNING in rcu_sync_dtor syzbot
2024-07-26 15:23 ` syzbot
2024-07-29 9:10 ` Christian Brauner
2024-07-29 13:27 ` Jan Kara
2024-07-29 13:58 ` Theodore Ts'o
2024-07-30 12:38 ` Jan Kara
2024-08-01 22:28 ` Dave Chinner
2024-07-27 1:16 ` Hillf Danton [this message]
2024-07-27 1:53 ` syzbot
2024-09-11 1:48 ` Chao Yu
2024-09-11 2:12 ` syzbot
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