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AFNElJ8DYeiWeZ2V8dl+Wq85kSYl7FreRHh5EVNVE0nH5dJYkV0IWJxR5hUNJoRHBq0Kf72xOgJImESuCSc7@vger.kernel.org X-Gm-Message-State: AOJu0YwnSy7iTFcMEMGIxuOGEA5xUavf4n2ZV7ekjp8mIO2HQ7pnvuqx vJUJKkMmZzo9dPtt5UQapmjz4QmE/WIcxko+skuVbyaJHHyLgg0pwkqEYj+DH8ME31+r+Az0q7o MIqZvIleq7y967WnaNFnj8I1OOHTGp3VL6932/bdYk3J8dwm3J0rBBINHLwU= Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:199d:b0:496:fd2:94ee with SMTP id 5614622812f47-4962d93e521mr5633343b6e.24.1783033021882; Thu, 02 Jul 2026 15:57:01 -0700 (PDT) Date: Thu, 02 Jul 2026 15:57:01 -0700 In-Reply-To: <20260702152225.4071746-1-yun.zhou@windriver.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a46ecbd.52c20a74.1f8b39.000b.GAE@google.com> Subject: [syzbot ci] Re: ext4: deferred iput framework for EA inodes From: syzbot ci To: adilger.kernel@dilger.ca, brauner@kernel.org, jack@suse.cz, libaokun@linux.alibaba.com, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, ojaswin@linux.ibm.com, ritesh.list@gmail.com, tytso@mit.edu, viro@zeniv.linux.org.uk, yi.zhang@huawei.com, yun.zhou@windriver.com Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot ci has tested the following series [v13] ext4: deferred iput framework for EA inodes https://lore.kernel.org/all/20260702152225.4071746-1-yun.zhou@windriver.com * [PATCH v13 1/4] fs: add iput_if_not_last() helper * [PATCH v13 2/4] ext4: introduce ext4_put_ea_inode() for safe deferred iput * [PATCH v13 3/4] ext4: convert all EA inode iput() calls to ext4_put_ea_inode() * [PATCH v13 4/4] ext4: remove ea_inode_array mechanism in favor of ext4_put_ea_inode() and found the following issue: WARNING in ext4_journal_check_start Full report is available here: https://ci.syzbot.org/series/ce304d7b-7f32-44b5-bf6f-e579abb42a5c *** WARNING in ext4_journal_check_start tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 4a50a141f05a8d1737661b19ee22ff8455b94409 arch: amd64 compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6 config: https://ci.syzbot.org/builds/e5413370-cf09-4540-b9d3-7d280f314ae0/config syz repro: https://ci.syzbot.org/findings/e7cd69b7-8bb9-4554-bd84-b5ebcd7a8089/syz_repro ------------[ cut here ]------------ sb_rdonly(sb) WARNING: fs/ext4/ext4_jbd2.c:75 at ext4_journal_check_start+0x24f/0x2b0 fs/ext4/ext4_jbd2.c:75, CPU#0: kworker/0:5/5860 Modules linked in: CPU: 0 UID: 0 PID: 5860 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: events ext4_ea_inode_work RIP: 0010:ext4_journal_check_start+0x24f/0x2b0 fs/ext4/ext4_jbd2.c:75 Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 06 75 42 ff 41 bf fb ff ff ff eb e0 e8 f9 74 42 ff eb d3 e8 f2 74 42 ff 90 <0f> 0b 90 eb c8 e8 e7 74 42 ff 90 0f 0b 90 43 80 7c 25 00 00 0f 85 RSP: 0018:ffffc900036bf888 EFLAGS: 00010293 RAX: ffffffff8283ecce RBX: ffff888170078000 RCX: ffff888107390000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 00000000000000ef R08: ffff8881bb53440f R09: 1ffff110376a6881 R10: dffffc0000000000 R11: ffffed10376a6882 R12: dffffc0000000000 R13: 1ffff1102e00f0cd R14: ffff888170078668 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88818dc20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055557b325a28 CR3: 0000000114bfe000 CR4: 00000000000006f0 Call Trace: __ext4_journal_start_sb+0x147/0x5d0 fs/ext4/ext4_jbd2.c:107 __ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline] ext4_evict_inode+0x7cb/0xf70 fs/ext4/inode.c:238 evict+0x624/0xb50 fs/inode.c:825 ext4_ea_inode_work+0x5c/0x90 fs/ext4/xattr.c:2974 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. To test a patch for this bug, please reply with `#syz test` (should be on a separate line). The patch should be attached to the email. Note: arguments like custom git repos and branches are not supported.