------------[ cut here ]------------
URB 0000000038b81cc9 submitted while active
WARNING: CPU: 1 PID: 22 at drivers/usb/core/urb.c:362 usb_submit_urb+0x1107/0x13f0 drivers/usb/core/urb.c:362
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.1.0-rc2-next-20190327 #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_power_efficient hub_init_func2
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:usb_submit_urb+0x1107/0x13f0 drivers/usb/core/urb.c:362
Code: 89 de e8 4c 91 fa fc 84 db 0f 85 01 f6 ff ff e8 ff 8f fa fc 4c 89 fe 48 c7 c7 a0 bc d2 87 c6 05 7f 5e e5 04 01 e8 f7 17 cd fc <0f> 0b e9 df f5 ff ff c7 45 c8 01 00 00 00 e9 97 f6 ff ff 41 be ed
RSP: 0018:ffff8880a9807b90 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815ae586 RDI: ffffed1015300f64
RBP: ffff8880a9807bf0 R08: ffff8880aa3f25c0 R09: ffffed1015d25019
R10: ffffed1015d25018 R11: ffff8880ae9280c7 R12: ffff88808a767210
R13: ffff8880a9807cf0 R14: 00000000fffffff0 R15: ffff88809fb30b00
 hub_activate+0xc77/0x16d0 drivers/usb/core/hub.c:1257
 hub_init_func2+0x1e/0x30 drivers/usb/core/hub.c:1282
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2270
 worker_thread+0x98/0xe40 kernel/workqueue.c:2416
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..