I see these messages on an intermittent basis happening about every 10 or so days on my TW KDE system.
Aug 19 09:33:49 localhost.localdomain kernel: usb 3-9: USB disconnect, device number 40
Aug 19 09:33:49 localhost.localdomain kernel: usb 3-9.3: USB disconnect, device number 41
Aug 19 09:33:49 localhost.localdomain kernel: BUG: unable to handle page fault for address: ffffb9248a509e78
Aug 19 09:33:49 localhost.localdomain kernel: #PF: supervisor write access in kernel mode
Aug 19 09:33:49 localhost.localdomain kernel: #PF: error_code(0x0002) - not-present page
Aug 19 09:33:49 localhost.localdomain kernel: PGD 100000067 P4D 100000067 PUD 1001db067 PMD 10750d067 PTE 0
Aug 19 09:33:49 localhost.localdomain kernel: Oops: 0002 [#1] PREEMPT SMP PTI
Aug 19 09:33:49 localhost.localdomain kernel: CPU: 3 PID: 18057 Comm: kworker/3:1 Not tainted 6.4.9-1-default #1 openSUSE Tumbleweed b5620505bc0019d00bb2610c41a20a1b1528c8e4
Aug 19 09:33:49 localhost.localdomain kernel: Hardware name: LENOVO INVALID/SHARKBAY, BIOS FBKTE0AUS 12/23/2021
Aug 19 09:33:49 localhost.localdomain kernel: Workqueue: usb_hub_wq hub_event [usbcore]
Aug 19 09:33:49 localhost.localdomain kernel: RIP: 0010:power_supply_uevent+0xee/0x1d0
Aug 19 09:33:49 localhost.localdomain kernel: Code: 75 4e 48 8b 13 48 83 7a 28 00 74 75 45 31 ff 31 c0 eb 10 48 8b 13 41 83 c7 01 49 63 c7 48 3b 42 28 73 5e 48 8b 52 20 8b 14 82 48 0f ab 54 24 08 48 8b 13 4c 89 f1 4c 89 e6 48 89 ef 48 8b 52
Aug 19 09:33:49 localhost.localdomain kernel: RSP: 0000:ffffb9248382f7b8 EFLAGS: 00010293
Aug 19 09:33:49 localhost.localdomain kernel: RAX: 0000000000000002 RBX: ffff9bc98b1cc000 RCX: ffff9bc9fc9fc000
Aug 19 09:33:49 localhost.localdomain kernel: RDX: 00000000366d35de RSI: 0000000000000000 RDI: ffff9bc98b1cc000
Aug 19 09:33:49 localhost.localdomain kernel: RBP: ffff9bc98b1cc038 R08: 0000000000000007 R09: ffff9bcad639a2fd
Aug 19 09:33:49 localhost.localdomain kernel: R10: ffffffffffffffff R11: 0000000000000000 R12: ffff9bc9d639a000
Aug 19 09:33:49 localhost.localdomain kernel: R13: 0000000000000000 R14: ffff9bc9fc9fc000 R15: 0000000000000002
Aug 19 09:33:49 localhost.localdomain kernel: FS: 0000000000000000(0000) GS:ffff9bca57380000(0000) knlGS:0000000000000000
Aug 19 09:33:49 localhost.localdomain kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug 19 09:33:49 localhost.localdomain kernel: CR2: ffffb9248a509e78 CR3: 0000000143e26005 CR4: 00000000001706e0
Aug 19 09:33:49 localhost.localdomain kernel: Call Trace:
Aug 19 09:33:49 localhost.localdomain kernel:
Aug 19 09:33:49 localhost.localdomain kernel: ? __die+0x23/0x70
Aug 19 09:33:49 localhost.localdomain kernel: ? page_fault_oops+0x14d/0x490
Aug 19 09:33:49 localhost.localdomain kernel: ? fixup_exception+0x26/0x310
Aug 19 09:33:49 localhost.localdomain kernel: ? exc_page_fault+0x14e/0x160
Aug 19 09:33:49 localhost.localdomain kernel: ? asm_exc_page_fault+0x26/0x30
Aug 19 09:33:49 localhost.localdomain kernel: ? power_supply_uevent+0xee/0x1d0
Aug 19 09:33:49 localhost.localdomain kernel: ? power_supply_uevent+0x10d/0x1d0
Aug 19 09:33:49 localhost.localdomain kernel: dev_uevent+0x112/0x2d0
Aug 19 09:33:49 localhost.localdomain kernel: kobject_uevent_env+0x29d/0x860
Aug 19 09:33:49 localhost.localdomain kernel: ? kernfs_remove_by_name_ns+0x89/0xd0
Aug 19 09:33:49 localhost.localdomain kernel: power_supply_unregister+0x8e/0xa0
Aug 19 09:33:49 localhost.localdomain kernel: release_nodes+0x40/0xb0
Aug 19 09:33:49 localhost.localdomain kernel: devres_release_all+0x8c/0xc0
Aug 19 09:33:49 localhost.localdomain kernel: device_unbind_cleanup+0xe/0x70
Aug 19 09:33:49 localhost.localdomain kernel: device_release_driver_internal+0x1cc/0x200
Aug 19 09:33:49 localhost.localdomain kernel: bus_remove_device+0xc6/0x130
Aug 19 09:33:49 localhost.localdomain kernel: device_del+0x15c/0x3d0
Aug 19 09:33:49 localhost.localdomain kernel: ? __queue_work+0x21b/0x4b0
Aug 19 09:33:49 localhost.localdomain kernel: hid_destroy_device+0x4b/0x60
Aug 19 09:33:49 localhost.localdomain kernel: logi_dj_remove+0x9a/0x100 [hid_logitech_dj 0dfb5cd0ee7b0e04fda895030620589952868571]
Aug 19 09:33:49 localhost.localdomain kernel: hid_device_remove+0x47/0x90
Aug 19 09:33:49 localhost.localdomain kernel: device_release_driver_internal+0x19f/0x200
Aug 19 09:33:49 localhost.localdomain kernel: bus_remove_device+0xc6/0x130
Aug 19 09:33:49 localhost.localdomain kernel: device_del+0x15c/0x3d0
Aug 19 09:33:49 localhost.localdomain kernel: ? __queue_work+0x21b/0x4b0
Aug 19 09:33:49 localhost.localdomain kernel: hid_destroy_device+0x4b/0x60
Aug 19 09:33:49 localhost.localdomain kernel: usbhid_disconnect+0x47/0x60 [usbhid 588c0a22bed2373a93219cd63fec2934bd8e2a6e]
Aug 19 09:33:49 localhost.localdomain kernel: usb_unbind_interface+0x93/0x270 [usbcore c19b025e3de65295245e6b570731bad5afe4a1e7]
Aug 19 09:33:49 localhost.localdomain kernel: device_release_driver_internal+0x19f/0x200
Aug 19 09:33:49 localhost.localdomain kernel: bus_remove_device+0xc6/0x130
Aug 19 09:33:49 localhost.localdomain kernel: device_del+0x15c/0x3d0
Aug 19 09:33:49 localhost.localdomain kernel: ? kobject_put+0xa0/0x1d0
Aug 19 09:33:49 localhost.localdomain kernel: usb_disable_device+0xcd/0x1e0 [usbcore c19b025e3de65295245e6b570731bad5afe4a1e7]
Aug 19 09:33:49 localhost.localdomain kernel: usb_disconnect+0xde/0x2c0 [usbcore c19b025e3de65295245e6b570731bad5afe4a1e7]
Aug 19 09:33:49 localhost.localdomain kernel: usb_disconnect+0xc3/0x2c0 [usbcore c19b025e3de65295245e6b570731bad5afe4a1e7]
Aug 19 09:33:49 localhost.localdomain kernel: hub_event+0xe34/0x1bc0 [usbcore c19b025e3de65295245e6b570731bad5afe4a1e7]
Aug 19 09:33:49 localhost.localdomain kernel: ? add_timer_on+0xe0/0x150
Aug 19 09:33:49 localhost.localdomain kernel: process_one_work+0x20a/0x420
Aug 19 09:33:49 localhost.localdomain kernel: worker_thread+0x4e/0x3b0
Aug 19 09:33:49 localhost.localdomain kernel: ? __pfx_worker_thread+0x10/0x10
Aug 19 09:33:49 localhost.localdomain kernel: kthread+0xe8/0x120
Aug 19 09:33:49 localhost.localdomain kernel: ? __pfx_kthread+0x10/0x10
Aug 19 09:33:49 localhost.localdomain kernel: ret_from_fork+0x2c/0x50
Aug 19 09:33:49 localhost.localdomain kernel:
and each time this happens it is followed by the workqueue lockup and eventually the system freezes. I have preserved the full journal from two occurrences. It seems like this relates to my KVM switch (with the Logitech USB keyboard and mouse) which is used to switch between this and my two other PC’s one of which also runs TW KDE and does not exhibit the problem but is rebooted each day. The one getting this error runs 24x7.
How best is it to try to progress this? What additional information is required or should I just open a bug report?
Stuart