1 FILE: virt/kvm/eventfd.c 2 3 irq bypass consumer (token ffff8801bff15e80) registration fails: -16 4 kasan: CONFIG_KASAN_INLINE enabled 5 kasan: GPF could be caused by NULL-ptr deref or user memory access 6 general protection fault: 0000 [#1] SMP KASAN 7 Dumping ftrace buffer: 8 (ftrace buffer empty) 9 Modules linked in: 10 CPU: 0 PID: 1427 Comm: kworker/0:3 Not tainted 4.9.0+ #9 11 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 12 Workqueue: kvm-irqfd-cleanup irqfd_shutdown 13 task: ffff8801d60cc700 task.stack: ffff8801d62f8000 14 RIP: 0010:[<ffffffff84352ab6>] [<ffffffff84352ab6>] __list_del include/linux/list.h:89 [inline] 15 RIP: 0010:[<ffffffff84352ab6>] [<ffffffff84352ab6>] list_del include/linux/list.h:107 [inline] 16 RIP: 0010:[<ffffffff84352ab6>] [<ffffffff84352ab6>] irq_bypass_unregister_consumer+0x296/0x470 virt/lib/irqbypass.c:258 17 RSP: 0018:ffff8801d62ff318 EFLAGS: 00010202 18 RAX: 0000000000000000 RBX: 1ffff1003ac5fe65 RCX: dffffc0000000000 19 RDX: ffff8801d3075170 RSI: 0000000000000001 RDI: 0000000000000008 20 RBP: ffff8801d62ff3b0 R08: 0000000000000000 R09: 0000000000000000 21 R10: 0000000000000006 R11: 0000000000000000 R12: ffff8801d3075168 22 R13: ffff8801d7d071a8 R14: 0000000000000000 R15: ffffffff8541bbe0 23 FS: 0000000000000000(0000) GS:ffff8801dc000000(0000) knlGS:0000000000000000 24 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 25 CR2: 00007f960f8f3db8 CR3: 00000001da19b000 CR4: 00000000001426f0 26 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 27 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 28 Stack: 29 ffffffff814cc212 ffff8801d60cc700 0000000041b58ab3 ffffffff84ad688d 30 ffffffff84352820 ffffffff815720c0 ffff8801da11b640 0000000041b58ab3 31 ffffffff84aea0a0 ffffffff81262e90 1ffff1003ac5fe74 0000000041b58ab3 32 Call Trace: 33 [<ffffffff8108aaf3>] irqfd_shutdown+0x123/0x1c0 arch/x86/kvm/../../../virt/kvm/eventfd.c:145 34 [<ffffffff81492c00>] process_one_work+0xbd0/0x1c10 kernel/workqueue.c:2096 35 [<ffffffff81493e63>] worker_thread+0x223/0x1990 kernel/workqueue.c:2230 36 [<ffffffff814abd53>] kthread+0x323/0x3e0 kernel/kthread.c:209 37 [<ffffffff84377c6a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 38 Code: 48 89 d1 48 c1 e9 03 80 3c 01 00 0f 85 76 01 00 00 49 8d 7e 08 48 b9 00 00 00 00 00 fc ff df 49 8b 44 24 08 48 89 fe 48 c1 ee 03 <80> 3c 0e 00 0f 85 2c 01 00 00 4c 8d 6d 98 48 b9 00 00 00 00 00 39 RIP [<ffffffff84352ab6>] __list_del include/linux/list.h:89 [inline] 40 RIP [<ffffffff84352ab6>] list_del include/linux/list.h:107 [inline] 41 RIP [<ffffffff84352ab6>] irq_bypass_unregister_consumer+0x296/0x470 virt/lib/irqbypass.c:258 42 RSP <ffff8801d62ff318> 43 ---[ end trace c88bb3be8e63e0af ]--- 44 Kernel panic - not syncing: Fatal exception 45 Dumping ftrace buffer: 46 (ftrace buffer empty) 47 Kernel Offset: disabled 48 Rebooting in 86400 seconds.. 49
