Public bug reported:

I use package Rhythembox as my MP3 player software. I also use Rhythebox
to transfer audio to my Sony WalkMan MP3 player.

Since moving to Xubuntu 20.04.2, it has gotten much harder to
successfully transfer mp3 audio to the Sony WalkMan MP3 player. I
checked in syslog... I see some errors I believe are related:

Aug  1 10:39:54 jaakob kernel: [ 8079.675644] mtp[10045]: segfault at 8a ip 
00007f2754d6f623 sp 00007f274cbb2f20 error 4 in 
libglib-2.0.so.0.6400.6[7f2754d1b000+84000]
Aug  1 10:39:54 jaakob kernel: [ 8079.675648] Code: 0f 1f 80 00 00 00 00 48 c1 
e8 04 4c 8b 3b 8d 48 ff 48 89 c5 49 89 ce 49 c1 e6 04 4d 01 f7 4d 8b 27 4d 85 
e4 0f 84 cd 00 00 00 <49> 8b 44 24 08 48 85 c0 74 43 48 8b 10 49 89 54 24 08 49 
89 c4 49
Aug  1 10:40:13 jaakob kernel: [ 8098.630114] usb 1-11.2: USB disconnect, 
device number 6
Aug  1 10:41:34 jaakob kernel: [ 8179.600470] usb 1-5: new high-speed USB 
device number 8 using xhci_hcd
Aug  1 10:41:34 jaakob kernel: [ 8179.749115] usb 1-5: New USB device found, 
idVendor=054c, idProduct=0385, bcdDevice= 0.01
Aug  1 10:41:34 jaakob kernel: [ 8179.749121] usb 1-5: New USB device strings: 
Mfr=1, Product=2, SerialNumber=5
Aug  1 10:41:34 jaakob kernel: [ 8179.749124] usb 1-5: Product: WALKMAN
Aug  1 10:41:34 jaakob kernel: [ 8179.749127] usb 1-5: Manufacturer: Sony
Aug  1 10:41:34 jaakob kernel: [ 8179.749130] usb 1-5: SerialNumber: 
10FA1355316092
Aug  1 10:41:34 jaakob kernel: [ 8179.750689] usb-storage 1-5:1.0: USB Mass 
Storage device detected
Aug  1 10:41:34 jaakob kernel: [ 8179.751175] scsi host14: usb-storage 1-5:1.0
Aug  1 10:41:35 jaakob kernel: [ 8180.761332] scsi 14:0:0:0: Direct-Access     
SONY     WALKMAN          1.00 PQ: 0 ANSI: 4
Aug  1 10:41:35 jaakob kernel: [ 8180.761875] sd 14:0:0:0: Attached scsi 
generic sg3 type 0
Aug  1 10:41:35 jaakob kernel: [ 8180.762889] sd 14:0:0:0: [sdb] 1917952 
2048-byte logical blocks: (3.93 GB/3.66 GiB)
Aug  1 10:41:35 jaakob kernel: [ 8180.763062] sd 14:0:0:0: [sdb] Write Protect 
is off
Aug  1 10:41:35 jaakob kernel: [ 8180.763066] sd 14:0:0:0: [sdb] Mode Sense: 3e 
00 00 00
Aug  1 10:41:35 jaakob kernel: [ 8180.763200] sd 14:0:0:0: [sdb] No Caching 
mode page found
Aug  1 10:41:35 jaakob kernel: [ 8180.763206] sd 14:0:0:0: [sdb] Assuming drive 
cache: write through
Aug  1 10:41:36 jaakob kernel: [ 8180.809779]  sdb: sdb1
Aug  1 10:41:36 jaakob kernel: [ 8180.811198] sd 14:0:0:0: [sdb] Attached SCSI 
removable disk
Aug  1 10:41:36 jaakob Thunar[7060]: Working directory "/home/mdlueck/[Invalid 
UTF-8]" does not exist. It won't be used when spawning "exo-open".Working 
directory "/home/mdlueck/[Invalid UTF-8]" does not exist. It won't be used when 
spawning "exo-open".
Aug  1 10:41:36 jaakob Thunar[10184]: thunar-volman: Unknown block device type 
"disk".
Aug  1 10:41:42 jaakob kernel: [ 8186.793656] FAT-fs (sdb1): Volume was not 
properly unmounted. Some data may be corrupt. Please run fsck.
Aug  1 10:41:42 jaakob systemd[1]: Created slice 
system-clean\x2dmount\x2dpoint.slice.
Aug  1 10:41:42 jaakob systemd[1]: Finished Clean the /media/mdlueck/WALKMAN 
mount point.
Aug  1 10:41:42 jaakob udisksd[813]: Mounted /dev/sdb1 at 
/media/mdlueck/WALKMAN on behalf of uid 1000
Aug  1 10:41:42 jaakob dbus-daemon[1546]: [session uid=1000 pid=1546] 
Activating service name='org.freedesktop.thumbnails.Thumbnailer1' requested by 
':1.83' (uid=1000 pid=7060 comm="/usr/bin/Thunar --daemon " label="unconfined")
Aug  1 10:41:42 jaakob org.freedesktop.thumbnails.Thumbnailer1[10238]: 
Registered thumbnailer atril-thumbnailer -s %s %u %o
Aug  1 10:41:42 jaakob org.freedesktop.thumbnails.Thumbnailer1[10238]: 
Registered thumbnailer /usr/bin/gdk-pixbuf-thumbnailer -s %s %u %o
Aug  1 10:41:42 jaakob org.freedesktop.thumbnails.Thumbnailer1[10238]: 
Registered thumbnailer gnome-thumbnail-font --size %s %u %o
Aug  1 10:41:42 jaakob org.freedesktop.thumbnails.Thumbnailer1[10238]: 
Registered thumbnailer /usr/bin/gdk-pixbuf-thumbnailer -s %s %u %o
Aug  1 10:41:42 jaakob dbus-daemon[1546]: [session uid=1000 pid=1546] 
Successfully activated service 'org.freedesktop.thumbnails.Thumbnailer1'
Aug  1 10:43:07 jaakob kernel: [ 8272.638815] blk_update_request: I/O error, 
dev sdb, sector 32 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638818] Buffer I/O error on dev sdb1, 
logical block 1, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638822] blk_update_request: I/O error, 
dev sdb, sector 2176 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638823] Buffer I/O error on dev sdb1, 
logical block 537, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638839] blk_update_request: I/O error, 
dev sdb, sector 793984 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638839] Buffer I/O error on dev sdb1, 
logical block 198489, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638842] blk_update_request: I/O error, 
dev sdb, sector 5157824 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638842] Buffer I/O error on dev sdb1, 
logical block 1289449, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638847] blk_update_request: I/O error, 
dev sdb, sector 5166528 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638849] Buffer I/O error on dev sdb1, 
logical block 1291625, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638851] blk_update_request: I/O error, 
dev sdb, sector 5187904 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638851] Buffer I/O error on dev sdb1, 
logical block 1296969, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638855] blk_update_request: I/O error, 
dev sdb, sector 5311744 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638856] Buffer I/O error on dev sdb1, 
logical block 1327929, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638858] blk_update_request: I/O error, 
dev sdb, sector 5321344 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638858] Buffer I/O error on dev sdb1, 
logical block 1330329, lost async page write
Aug  1 10:43:07 jaakob kernel: [ 8272.638861] blk_update_request: I/O error, 
dev sdb, sector 5364160 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Aug  1 10:43:07 jaakob kernel: [ 8272.638863] Buffer I/O error on dev sdb1, 
logical block 1341033, lost async page write
Aug  1 10:43:07 jaakob udisksd[813]: Cleaning up mount point 
/media/mdlueck/WALKMAN (device 8:17 no longer exists)
Aug  1 10:43:07 jaakob systemd[1532]: media-mdlueck-WALKMAN.mount: Succeeded.
Aug  1 10:43:07 jaakob systemd[1]: media-mdlueck-WALKMAN.mount: Succeeded.
Aug  1 10:43:07 jaakob systemd[1]: Stopping Clean the /media/mdlueck/WALKMAN 
mount point...
Aug  1 10:43:07 jaakob systemd[1]: 
clean-mount-point@media-mdlueck-WALKMAN.service: Succeeded.
Aug  1 10:43:07 jaakob systemd[1]: Stopped Clean the /media/mdlueck/WALKMAN 
mount point.
Aug  1 10:43:13 jaakob kernel: [ 8277.839104] usb 1-5: reset high-speed USB 
device number 8 using xhci_hcd
Aug  1 10:43:13 jaakob kernel: [ 8278.115100] usb 1-5: reset high-speed USB 
device number 8 using xhci_hcd
Aug  1 10:43:41 jaakob gvfsd[10395]: error returned by libusb_claim_interface() 
= -6LIBMTP PANIC: Unable to initialize device
Aug  1 10:43:42 jaakob gvfsd[10395]: Device 0 (VID=054c and PID=0385) is a Sony 
NWZ-E436F.
Aug  1 10:43:46 jaakob gvfsd[10404]: error returned by libusb_claim_interface() 
= -6LIBMTP PANIC: Unable to initialize device
Aug  1 10:43:46 jaakob gvfsd[10404]: Device 0 (VID=054c and PID=0385) is a Sony 
NWZ-E436F.

** Affects: ubuntu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1938645

Title:
  Ubuntu 20.04.2 getting kernel I/O errors connecting to Sony Walkman
  over USB using MTP protocol

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