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AJvYcCWL7AkjzM+wXspSGCXuATvt8L+pnAbRiN05LVZiTXIdaMnOaEpWwWnCnJhfIKYSXll2H8412PyhbMHk@vger.kernel.org X-Gm-Message-State: AOJu0YzHfpSm2HUTbB4G2HcGRRxt2RedF6OS7hv/PMtOPKVRHfcT+fol yMReU1Cf3mzjKeiEwVpT5gs9OercOvWie6GEo4nAuhMsuAPj8haDWufE2nSp3amggmxpIvenSV+ HETYTtMk6dcOY+Zk6ywb9chncBUOkjnPR+7mepr2dI4zdpHDFTze78r5uRvw= Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1b10:b0:663:b86:493 with SMTP id 006d021491bc7-679fae78f67mr6891272eaf.33.1772446112744; Mon, 02 Mar 2026 02:08:32 -0800 (PST) Date: Mon, 02 Mar 2026 02:08:32 -0800 In-Reply-To: <20260228025650.2664098-1-yebin@huaweicloud.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69a561a0.050a0220.3a55be.0073.GAE@google.com> Subject: [syzbot ci] Re: ext4: test if inode's all dirty pages are submitted to disk From: syzbot ci To: adilger.kernel@dilger.ca, jack@suse.cz, linux-ext4@vger.kernel.org, tytso@mit.edu, yebin@huaweicloud.com Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot ci has tested the following series [v2] ext4: test if inode's all dirty pages are submitted to disk https://lore.kernel.org/all/20260228025650.2664098-1-yebin@huaweicloud.com * [PATCH v2] ext4: test if inode's all dirty pages are submitted to disk and found the following issue: WARNING in ext4_evict_inode Full report is available here: https://ci.syzbot.org/series/b58ccb85-a946-44ae-9d57-c02bee2a43ba *** WARNING in ext4_evict_inode tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 4d349ee5c7782f8b27f6cb550f112c5e26fff38d arch: amd64 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 config: https://ci.syzbot.org/builds/1accd9c8-371e-4c6c-9c4b-b930c65c23be/config C repro: https://ci.syzbot.org/findings/ccbdbde1-d214-4e90-aeb7-d4bbda01329c/c_repro syz repro: https://ci.syzbot.org/findings/ccbdbde1-d214-4e90-aeb7-d4bbda01329c/syz_repro ------------[ cut here ]------------ !ext4_emergency_state(inode->i_sb) && mapping_tagged(&inode->i_data, PAGECACHE_TAG_DIRTY) WARNING: fs/ext4/inode.c:192 at ext4_evict_inode+0xce7/0x1020 fs/ext4/inode.c:191, CPU#1: syz-executor/5917 Modules linked in: CPU: 1 UID: 0 PID: 5917 Comm: syz-executor 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 RIP: 0010:ext4_evict_inode+0xce7/0x1020 fs/ext4/inode.c:191 Code: f3 ff ff e8 ab 60 40 ff 49 89 dc 48 8b 5c 24 18 e9 ea f5 ff ff e8 99 60 40 ff 48 8b 5c 24 18 e9 db f5 ff ff e8 8a 60 40 ff 90 <0f> 0b 90 e9 cd f5 ff ff e8 7c 60 40 ff 48 8d 3d 85 e4 92 0d 67 48 RSP: 0018:ffffc900057e79a0 EFLAGS: 00010293 RAX: ffffffff82852b46 RBX: ffff88812000f5b8 RCX: ffff88811128ba00 RDX: 0000000000000000 RSI: 0000000004000000 RDI: 0000000000000000 RBP: ffffc900057e7ab0 R08: ffff8881111b6387 R09: 1ffff11022236c70 R10: dffffc0000000000 R11: ffffed1022236c71 R12: 1ffff92000afcf44 R13: dffffc0000000000 R14: 0000000004000000 R15: ffff8881111b6380 FS: 0000555570b0d500(0000) GS:ffff8882a9464000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff533fce88 CR3: 000000010b644000 CR4: 00000000000006f0 Call Trace: evict+0x61e/0xb10 fs/inode.c:846 dispose_list fs/inode.c:888 [inline] evict_inodes+0x75a/0x7f0 fs/inode.c:942 generic_shutdown_super+0xaa/0x2d0 fs/super.c:632 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xb0 fs/ext4/super.c:7459 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb75539d9d7 Code: a2 c7 05 1c ed 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe2e6b7108 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fb755431f90 RCX: 00007fb75539d9d7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2e6b71c0 RBP: 00007ffe2e6b71c0 R08: 00007ffe2e6b81c0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2e6b8250 R13: 00007fb755431f90 R14: 000000000000f951 R15: 00007ffe2e6b8290 *** 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.