pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. ------------[ cut here ]------------ sysfs group 'power' not found for kobject '0-0011' WARNING: CPU: 1 PID: 103 at fs/sysfs/group.c:278 sysfs_remove_group fs/sysfs/group.c:278 [inline] WARNING: CPU: 1 PID: 103 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 fs/sysfs/group.c:269 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 103 Comm: pvrusb2-context Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x2a3/0x6da kernel/panic.c:219 __warn.cold+0x20/0x4a kernel/panic.c:576 report_bug+0x262/0x2a0 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+0x12b/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:sysfs_remove_group fs/sysfs/group.c:278 [inline] RIP: 0010:sysfs_remove_group+0x155/0x1b0 fs/sysfs/group.c:269 Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 e0 c8 d0 85 e8 a0 0e 8b ff <0f> 0b eb 95 e8 e2 d1 db ff e9 d2 fe ff ff 48 89 df e8 d5 d1 db ff RSP: 0018:ffff8881d51d7b90 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffff85f2d700 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103aa3af64 RBP: 0000000000000000 R08: ffff8881d5063000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d520c420 R13: ffffffff85f2dca0 R14: 1ffff1103aa3af98 R15: dffffc0000000000 dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:735 device_del+0x12a/0xb10 drivers/base/core.c:2316 device_unregister+0x11/0x30 drivers/base/core.c:2371 i2c_unregister_device include/linux/err.h:41 [inline] __unregister_client drivers/i2c/i2c-core-base.c:1510 [inline] __unregister_client+0x8b/0xa0 drivers/i2c/i2c-core-base.c:1506 device_for_each_child+0xf9/0x170 drivers/base/core.c:2471 i2c_del_adapter drivers/i2c/i2c-core-base.c:1573 [inline] i2c_del_adapter+0x2e2/0x590 drivers/i2c/i2c-core-base.c:1535 pvr2_i2c_core_done+0x69/0xb6 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:652 pvr2_hdw_destroy+0x179/0x370 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2680 pvr2_context_destroy+0x84/0x230 drivers/media/usb/pvrusb2/pvrusb2-context.c:70 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline] pvr2_context_thread_func+0x657/0x860 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..