kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 3 Comm: kworker/0:0 Not tainted 4.13.0-next-20170908+ #18 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Workqueue: kvm-irqfd-cleanup irqfd_shutdown task: ffff88003ebb80c0 task.stack: ffff88003ebc0000 RIP: 0010:__list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51 RSP: 0018:ffff88003ebc7370 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff880069298560 RDI: ffff880069298568 RBP: ffff88003ebc7388 R08: ffff88003ebc6ce0 R09: ffff88003ebc6cd8 R10: ffff88003ebc6c50 R11: 1ffff10007d772ab R12: 0000000000000000 R13: 1ffff10007d78e7a R14: ffff880069298548 R15: ffff88003ebc7470 FS: 0000000000000000(0000) GS:ffff88003ec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000606df0 CR3: 000000003e3a6000 CR4: 00000000000026f0 Call Trace: __list_del_entry include/linux/list.h:116 [inline] list_del include/linux/list.h:124 [inline] __remove_wait_queue include/linux/wait.h:182 [inline] eventfd_ctx_remove_wait_queue+0x173/0x5b0 fs/eventfd.c:201 irqfd_shutdown+0x95/0x1a0 arch/x86/kvm/../../../virt/kvm/eventfd.c:128 process_one_work+0xbfa/0x1bd0 kernel/workqueue.c:2119 worker_thread+0x223/0x1860 kernel/workqueue.c:2253 kthread+0x39c/0x470 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 Code: 00 00 00 00 ad de 49 39 c4 74 66 48 b8 00 02 00 00 00 00 ad de 48 89 da 48 39 c3 74 65 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 75 7b 48 8b 13 48 39 f2 75 57 49 8d 7c 24 08 48 b8 RIP: __list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51 RSP: ffff88003ebc7370 ---[ end trace 3609bba12b70f72c ]--- Kernel panic - not syncing: Fatal exception Shutting down cpus with NMI Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..