The solution to this issue was documented in my #3 comment. The misleading error messages coming from Linux were indicating that it was time to fresh reformat the MP3 player and start over. Once done, no issues.
This defect report may be close. Thank you. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 Status in linux package in Ubuntu: Incomplete Bug description: 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. 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