em28xx 1-1:4.134: Audio interface 134 found (Vendor Class) em28xx 1-1:4.134: unknown em28xx chip ID (0) em28xx 1-1:4.134: Config register raw data: 0xfffffffb em28xx 1-1:4.134: AC97 chip type couldn't be determined em28xx 1-1:4.134: No AC97 audio processor ------------[ cut here ]------------ list_add corruption. prev->next should be next (ffffffff8753dbc0), but was 0000000000000000. (prev=ffff8881cf440240). WARNING: CPU: 1 PID: 22 at lib/list_debug.c:26 __list_add_valid+0x99/0xf0 lib/list_debug.c:26 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.4.0-rc6+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x2aa/0x6e1 kernel/panic.c:221 __warn.cold+0x2f/0x33 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 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:__list_add_valid+0x99/0xf0 lib/list_debug.c:26 Code: 48 c7 c7 80 ba da 85 e8 5a 31 30 ff 0f 0b 48 83 c4 08 31 c0 5d 41 5c c3 48 89 f1 48 c7 c7 40 bb da 85 4c 89 e6 e8 3c 31 30 ff <0f> 0b 31 c0 eb c5 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 c0 bb da 85 RSP: 0018:ffff8881d93370e0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8881cf440120 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8128c9cd RDI: ffffed103b266e0e RBP: ffff8881cf440240 R08: ffff8881d9328000 R09: fffffbfff11ab3af R10: fffffbfff11ab3ae R11: ffffffff88d59d77 R12: ffffffff8753dbc0 R13: ffff8881cf440000 R14: ffff8881cf44012c R15: ffff8881cf59f000 __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] em28xx_init_extension+0x44/0x1f0 drivers/media/usb/em28xx/em28xx-core.c:1125 em28xx_init_dev.isra.0+0xa7b/0x15d8 drivers/media/usb/em28xx/em28xx-cards.c:3520 em28xx_usb_probe.cold+0xcac/0x2516 drivers/media/usb/em28xx/em28xx-cards.c:3869 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x104/0x210 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490 device_add+0xae6/0x16f0 drivers/base/core.c:2202 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x104/0x210 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490 device_add+0xae6/0x16f0 drivers/base/core.c:2202 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2537 hub_port_connect drivers/usb/core/hub.c:5184 [inline] hub_port_connect_change drivers/usb/core/hub.c:5324 [inline] port_event drivers/usb/core/hub.c:5470 [inline] hub_event+0x1df8/0x3800 drivers/usb/core/hub.c:5552 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269 process_scheduled_works kernel/workqueue.c:2331 [inline] worker_thread+0x7ab/0xe20 kernel/workqueue.c:2417 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..