list_add corruption. prev->next should be next (ffff8801c2aad370), but was ffff8801c2aad380. (prev=ffff8801b1a15ad8). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:28! invalid opcode: 0000 [#1] SMP KASAN CPU: 0 PID: 1879 Comm: kworker/0:2 Not tainted 4.18.0-rc7-next-20180803+ #31 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events p9_write_work RIP: 0010:__list_add_valid.cold.0+0x23/0x25 lib/list_debug.c:26 Code: e8 4f ce 56 fe eb 97 48 89 d9 48 c7 c7 e0 9a 3a 87 e8 32 87 fe fd 0f 0b 48 89 f1 48 c7 c7 a0 9b 3a 87 48 89 de e8 1e 87 fe fd <0f> 0b 4c 89 e2 48 89 de 48 c7 c7 e0 9c 3a 87 e8 0a 87 fe fd 0f 0b RSP: 0018:ffff8801ce447590 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff8801c2aad370 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816366f1 RDI: 0000000000000001 RBP: ffff8801ce4475a8 R08: ffff8801ce43a500 R09: ffffed003b604fd0 R10: ffffed003b604fd0 R11: ffff8801db027e87 R12: ffff8801b1a15ad8 R13: ffff8801b1a15ad8 R14: ffff8801c2aad3c4 R15: ffff8801b1a15ad8 FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31525000 CR3: 00000001b53b4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] list_move_tail include/linux/list.h:183 [inline] p9_write_work+0x34e/0xd50 net/9p/trans_fd.c:470 process_one_work+0xc73/0x1ba0 kernel/workqueue.c:2153 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace fb8b29d28d8f9975 ]--- RIP: 0010:__list_add_valid.cold.0+0x23/0x25 lib/list_debug.c:26 Code: e8 4f ce 56 fe eb 97 48 89 d9 48 c7 c7 e0 9a 3a 87 e8 32 87 fe fd 0f 0b 48 89 f1 48 c7 c7 a0 9b 3a 87 48 89 de e8 1e 87 fe fd <0f> 0b 4c 89 e2 48 89 de 48 c7 c7 e0 9c 3a 87 e8 0a 87 fe fd 0f 0b RSP: 0018:ffff8801ce447590 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff8801c2aad370 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816366f1 RDI: 0000000000000001 RBP: ffff8801ce4475a8 R08: ffff8801ce43a500 R09: ffffed003b604fd0 R10: ffffed003b604fd0 R11: ffff8801db027e87 R12: ffff8801b1a15ad8 R13: ffff8801b1a15ad8 R14: ffff8801c2aad3c4 R15: ffff8801b1a15ad8 FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31525000 CR3: 00000001b53b4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400