Key part of dmesg is: [76704.227672] cdc_acm 1-1.4:1.0: failed to set dtr/rts [76704.936301] usb 1-1.4: USB disconnect, device number 11 [76704.951638] blk_update_request: I/O error, dev sdc, sector 1110 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951644] Buffer I/O error on dev sdc1, logical block 1109, lost async page write [76704.951647] Buffer I/O error on dev sdc1, logical block 1110, lost async page write [76704.951656] blk_update_request: I/O error, dev sdc, sector 1128 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951658] Buffer I/O error on dev sdc1, logical block 1127, lost async page write [76704.951661] Buffer I/O error on dev sdc1, logical block 1128, lost async page write [76704.951679] blk_update_request: I/O error, dev sdc, sector 1150 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951682] Buffer I/O error on dev sdc1, logical block 1149, lost async page write [76704.951684] Buffer I/O error on dev sdc1, logical block 1150, lost async page write [76704.951689] blk_update_request: I/O error, dev sdc, sector 1174 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951691] Buffer I/O error on dev sdc1, logical block 1173, lost async page write [76704.951693] Buffer I/O error on dev sdc1, logical block 1174, lost async page write [76704.951717] blk_update_request: I/O error, dev sdc, sector 1194 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951718] Buffer I/O error on dev sdc1, logical block 1193, lost async page write [76704.951719] Buffer I/O error on dev sdc1, logical block 1194, lost async page write [76704.951722] blk_update_request: I/O error, dev sdc, sector 1212 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951734] blk_update_request: I/O error, dev sdc, sector 1232 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951739] blk_update_request: I/O error, dev sdc, sector 1252 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951748] blk_update_request: I/O error, dev sdc, sector 1272 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76704.951751] blk_update_request: I/O error, dev sdc, sector 1290 op 0x1:(WRITE) flags 0x0 phys_seg 2 prio class 0 [76707.579590] usb 1-1.4: new full-speed USB device number 12 using ehci-pci [76707.691410] usb 1-1.4: New USB device found, idVendor=239a, idProduct=8014, bcdDevice= 1.00 [76707.691413] usb 1-1.4: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [76707.691415] usb 1-1.4: Product: Metro M0 Express [76707.691417] usb 1-1.4: Manufacturer: Adafruit Industries LLC [76707.691418] usb 1-1.4: SerialNumber: DFAE9D970323D4050213E2932141E0FF [76707.692717] general protection fault: 0000 [#1] SMP PTI [76707.692723] CPU: 3 PID: 75883 Comm: kworker/3:1 Kdump: loaded Not tainted 5.4.0-21-generic #25-Ubuntu [76707.692725] Hardware name: Dell Inc. OptiPlex 7010/0WR7PY, BIOS A29 06/28/2018 [76707.692732] Workqueue: usb_hub_wq hub_event [76707.692738] RIP: 0010:__kmalloc+0xa5/0x270 [76707.692741] Code: 65 49 8b 50 08 65 4c 03 05 40 a0 76 4d 4d 8b 38 4d 85 ff 0f 84 93 01 00 00 41 8b 59 20 49 8b 39 48 8d 4a 01 4c 89 f8 4c 01 fb <48> 33 1b 49 33 99 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd [76707.692743] RSP: 0018:ffffa85b4316f6c0 EFLAGS: 00010286 [76707.692745] RAX: af73d55600000000 RBX: af73d55600000000 RCX: 0000000000140e86 [76707.692747] RDX: 0000000000140e85 RSI: 0000000000000cc0 RDI: 000000000002f100 [76707.692749] RBP: ffffa85b4316f6f0 R08: ffff8ef6ce1af100 R09: ffff8ef6cc403180 [76707.692751] R10: 0000000000000cc0 R11: 0000000001320122 R12: 0000000000000cc0 [76707.692752] R13: 00000000000000b8 R14: ffff8ef6cc403180 R15: af73d55600000000 [76707.692755] FS: 0000000000000000(0000) GS:ffff8ef6ce180000(0000) knlGS:0000000000000000 [76707.692757] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [76707.692758] CR2: 00007fd69c2ee000 CR3: 0000000210f8e006 CR4: 00000000001606e0 [76707.692760] Call Trace: [76707.692767] ? usb_alloc_urb+0x29/0x60 [76707.692772] usb_alloc_urb+0x29/0x60 [76707.692779] acm_probe+0x6da/0xdb0 [cdc_acm] [76707.692786] usb_probe_interface+0xed/0x290 [76707.692792] really_probe+0x2b3/0x3e0 [76707.692796] driver_probe_device+0xbc/0x100 [76707.692799] __device_attach_driver+0x71/0xd0 [76707.692803] ? driver_allows_async_probing+0x50/0x50 [76707.692807] bus_for_each_drv+0x84/0xd0 [76707.692810] __device_attach+0xe1/0x160 [76707.692814] device_initial_probe+0x13/0x20 [76707.692817] bus_probe_device+0x8f/0xa0 [76707.692820] device_add+0x3c7/0x6b0 [76707.692825] ? _cond_resched+0x19/0x30 [76707.692828] usb_set_configuration+0x433/0x7d0 [76707.692833] ? kernfs_activate+0x77/0x80 [76707.692836] generic_probe+0x43/0x60 [76707.692839] usb_probe_device+0x31/0x70 [76707.692842] really_probe+0x2b3/0x3e0 [76707.692846] driver_probe_device+0xbc/0x100 [76707.692849] __device_attach_driver+0x71/0xd0 [76707.692853] ? driver_allows_async_probing+0x50/0x50 [76707.692856] bus_for_each_drv+0x84/0xd0 [76707.692860] __device_attach+0xe1/0x160 [76707.692863] device_initial_probe+0x13/0x20 [76707.692866] bus_probe_device+0x8f/0xa0 [76707.692869] device_add+0x3c7/0x6b0 [76707.692873] ? add_device_randomness+0xa0/0x1c0 [76707.692876] usb_new_device.cold+0x12d/0x304 [76707.692879] hub_port_connect+0x500/0x850 [76707.692883] port_event+0x502/0x780 [76707.692886] ? __switch_to_asm+0x34/0x70 [76707.692889] hub_event+0x152/0x390 [76707.692893] ? psi_avgs_work+0x64/0xd0 [76707.692897] process_one_work+0x1eb/0x3b0 [76707.692900] worker_thread+0x4d/0x400 [76707.692904] kthread+0x104/0x140 [76707.692907] ? process_one_work+0x3b0/0x3b0 [76707.692909] ? kthread_park+0x90/0x90 [76707.692914] ret_from_fork+0x35/0x40 [76707.692917] Modules linked in: nls_utf8 udf crc_itu_t nls_iso8859_1 rfcomm cmac algif_hash algif_skcipher af_alg bnep intel_rapl_msr uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mei_hdcp intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul ghash_clmulni_intel binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio aesni_intel crypto_simd cryptd glue_helper intel_cstate snd_hda_intel intel_rapl_perf snd_intel_nhlt snd_hda_codec snd_hda_core snd_usb_audio snd_usbmidi_lib snd_hwdep snd_seq_midi snd_seq_midi_event snd_rawmidi mc snd_pcm snd_seq joydev btusb btrtl uas btbcm btintel cdc_acm usb_storage input_leds bluetooth snd_seq_device snd_timer dell_wmi ecdh_generic ecc dell_smbios i915 dcdbas serio_raw sparse_keymap dell_wmi_descriptor wmi_bmof snd drm_kms_helper mei_me i2c_algo_bit fb_sys_fops ie31200_edac syscopyarea sysfillrect soundcore mei sysimgblt mac_hid sch_fq_codel [76707.692958] parport_pc ppdev lp parport drm sunrpc ip_tables x_tables autofs4 hid_generic usbhid hid crc32_pclmul psmouse i2c_i801 ahci libahci lpc_ich e1000e wmi video
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871143 Title: Kernel crash during USB device enumeration or mounting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1871143/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
