[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1871143
Title:
Kernel crash during USB device enumeration or mounting
Status in linux package in Ubuntu:
Expired
Bug description:
Device is an Adafruit microcontroller board running
https://github.com/adafruit/circuitpython, using the TinyUSB USB
stack: https://github.com/hathach/tinyusb.
Device presents a composite USB device that includes MSC, CDC, HID, and MIDI
Device was commanded to forcibly reformat its MSC FAT12 filesystem and then
reset, which causes a USB reset and re-enumeration.
This causes some USB kernel code to crash, much of the time, though
not quite all the time.
I work for Adafruit and the maintainer of TinyUSB also works for
Adafruit, so we can provide further help to track this down.
Attached is the dmesg file for the crash. I tried uploading the dump file
from kdump, but launchpad is timing out. The dump file is available at:
https://drive.google.com/open?id=1ka3ySSccEMRSmnYgI9X16IndPDmIKTD6
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-21-generic 5.4.0-21.25
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
ApportVersion: 2.20.11-0ubuntu24
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: halbert 1857 F.... pulseaudio
/dev/snd/controlC2: halbert 1857 F.... pulseaudio
CurrentDesktop: X-Cinnamon
Date: Mon Apr 6 11:09:43 2020
HibernationDevice: RESUME=UUID=55694d39-bafe-45f8-ba05-ea5d54a93a85
InstallationDate: Installed on 2017-09-19 (929 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64
(20170215.2)
IwConfig:
eno1 no wireless extensions.
lo no wireless extensions.
MachineType: Dell Inc. OptiPlex 7010
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic
root=UUID=b3868153-c620-4efe-9dfc-8059dc6288a8 ro quiet splash
crashkernel=512M-:192M vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-21-generic N/A
linux-backports-modules-5.4.0-21-generic N/A
linux-firmware 1.187
RfKill:
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-03-08 (28 days ago)
dmi.bios.date: 06/28/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A29
dmi.board.name: 0WR7PY
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA29:bd06/28/2018:svnDellInc.:pnOptiPlex7010:pvr01:rvnDellInc.:rn0WR7PY:rvrA01:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 7010
dmi.product.sku: OptiPlex 7010
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
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