Hello, syzbot found the following issue on: HEAD commit: f5020a08b2b3 Merge tag 's390-6.1-4' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13dcf7a9880000 kernel config: https://syzkaller.appspot.com/x/.config?x=63dd4cec15ec5ea2 dashboard link: https://syzkaller.appspot.com/bug?extid=1db57b8a1f746d42a177 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2d4840e0a006/disk-f5020a08.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/da4765f2786a/vmlinux-f5020a08.xz kernel image: https://storage.googleapis.com/syzbot-assets/5cca8e2906ca/bzImage-f5020a08.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1db57b8a1f746d42a177@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at fs/jbd2/transaction.c:1290! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 20729 Comm: kworker/u4:2 Not tainted 6.1.0-rc4-syzkaller-00308-gf5020a08b2b3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: writeback wb_workfn (flush-8:0) RIP: 0010:jbd2_journal_get_create_access+0x36c/0x560 fs/jbd2/transaction.c:1290 Code: 85 01 02 00 00 8b 45 4c bf 02 00 00 00 89 c6 89 44 24 08 e8 26 9f 4c ff 8b 44 24 08 83 f8 02 0f 84 06 fe ff ff e8 44 a2 4c ff <0f> 0b e8 3d a2 4c ff 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 RSP: 0018:ffffc900036d6db8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88814b1b6000 RCX: 0000000000000000 RDX: ffff8880569fe100 RSI: ffffffff822f322c RDI: 0000000000000005 RBP: ffff888045901870 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000003 R11: 0000000000000000 R12: ffff88804727e6e0 R13: 0000000000000000 R14: ffff88804e841c80 R15: ffff888045901878 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020091000 CR3: 00000000322c0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __ext4_journal_get_create_access+0x50/0x1f0 fs/ext4/ext4_jbd2.c:323 ext4_ext_grow_indepth fs/ext4/extents.c:1339 [inline] ext4_ext_create_new_leaf fs/ext4/extents.c:1435 [inline] ext4_ext_insert_extent+0x12ab/0x4130 fs/ext4/extents.c:2102 ext4_ext_map_blocks+0x1541/0x6270 fs/ext4/extents.c:4308 ext4_map_blocks+0x775/0x18d0 fs/ext4/inode.c:645 mpage_map_one_extent fs/ext4/inode.c:2413 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2466 [inline] ext4_writepages+0x1e55/0x3da0 fs/ext4/inode.c:2834 do_writepages+0x1ab/0x690 mm/page-writeback.c:2469 __writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1587 writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1870 wb_writeback+0x2c5/0xd70 fs/fs-writeback.c:2044 wb_do_writeback fs/fs-writeback.c:2187 [inline] wb_workfn+0x2dc/0x12f0 fs/fs-writeback.c:2227 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jbd2_journal_get_create_access+0x36c/0x560 fs/jbd2/transaction.c:1290 Code: 85 01 02 00 00 8b 45 4c bf 02 00 00 00 89 c6 89 44 24 08 e8 26 9f 4c ff 8b 44 24 08 83 f8 02 0f 84 06 fe ff ff e8 44 a2 4c ff <0f> 0b e8 3d a2 4c ff 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 RSP: 0018:ffffc900036d6db8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88814b1b6000 RCX: 0000000000000000 RDX: ffff8880569fe100 RSI: ffffffff822f322c RDI: 0000000000000005 RBP: ffff888045901870 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000003 R11: 0000000000000000 R12: ffff88804727e6e0 R13: 0000000000000000 R14: ffff88804e841c80 R15: ffff888045901878 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020091000 CR3: 00000000322c0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
