IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 hfs: unable to locate alternate MDB hfs: continuing without an alternate MDB ------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:442! invalid opcode: 0000 [#1] SMP CPU: 0 PID: 299 Comm: kworker/u4:3 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: writeback wb_workfn (flush-7:4) RIP: 0010:hfs_write_inode+0x19a/0x290 fs/hfs/inode.c:442 Code: 0f 85 11 01 00 00 48 81 c4 a8 00 00 00 5b 41 5c 41 5d 5d c3 48 83 f8 03 74 28 48 83 f8 04 74 0c 48 83 f8 02 0f 84 a6 fe ff ff <0f> 0b 48 8b 43 28 48 8b 80 60 06 00 00 48 8b 78 30 e8 a0 c7 ff ff hfs: unable to locate alternate MDB RSP: 0018:ffffc90000913af8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88820973a718 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffc90000913c50 RDI: ffff88820973a718 RBP: ffffc90000913bb8 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000282 R11: d8e5c55eb93236eb R12: 0000000000000000 R13: 0000000000000000 R14: ffff88820973a940 R15: ffff88820973a7a0 FS: 0000000000000000(0000) GS:ffff888218400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f403392b6c0 CR3: 00000002117b2000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: write_inode fs/fs-writeback.c:1320 [inline] __writeback_single_inode+0x448/0x600 fs/fs-writeback.c:1516 writeback_sb_inodes+0x21c/0x540 fs/fs-writeback.c:1721 wb_writeback+0x106/0x460 fs/fs-writeback.c:1894 wb_do_writeback fs/fs-writeback.c:2039 [inline] wb_workfn+0x108/0x680 fs/fs-writeback.c:2080 hfs: continuing without an alternate MDB process_one_work+0x25d/0x590 kernel/workqueue.c:2269 worker_thread+0x3f/0x390 kernel/workqueue.c:2415 kthread+0x149/0x160 kernel/kthread.c:292 hfs: unable to locate alternate MDB ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 9f5763469f9a619e ]--- hfs: continuing without an alternate MDB RIP: 0010:hfs_write_inode+0x19a/0x290 fs/hfs/inode.c:442 Code: 0f 85 11 01 00 00 48 81 c4 a8 00 00 00 5b 41 5c 41 5d 5d c3 48 83 f8 03 74 28 48 83 f8 04 74 0c 48 83 f8 02 0f 84 a6 fe ff ff <0f> 0b 48 8b 43 28 48 8b 80 60 06 00 00 48 8b 78 30 e8 a0 c7 ff ff hfs: unable to locate alternate MDB RSP: 0018:ffffc90000913af8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88820973a718 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffc90000913c50 RDI: ffff88820973a718 RBP: ffffc90000913bb8 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000282 R11: d8e5c55eb93236eb R12: 0000000000000000 hfs: continuing without an alternate MDB hfs: unable to locate alternate MDB R13: 0000000000000000 R14: ffff88820973a940 R15: ffff88820973a7a0 hfs: continuing without an alternate MDB FS: 0000000000000000(0000) GS:ffff888218400000(0000) knlGS:0000000000000000 hfs: unable to locate alternate MDB CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f403392b6c0 CR3: 00000002117b2000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 hfs: continuing without an alternate MDB