Comment 6 for bug 1769116

I am seeing this after CDROM read errors of audio CDs using rhythmbox on Ubuntu 20.04 with an Nvidia video card.
After that, rhythmbox fails to start, adding this complaint to /var/log/syslog, and cannot be restarted without logging off or rebooting.

Nearby syslog entries appended.

Mar 13 08:56:29 wedgingt kernel: [121925.744832] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Mar 13 08:56:29 wedgingt kernel: [121925.744838] ata2.00: cmd a0/01:00:00:10:f8/00:00:00:00:00/a0 tag 15 dma 63504 in
Mar 13 08:56:29 wedgingt kernel: [121925.744838] Volume set (in), Read cd be 00 00 05 56 a2 00 00 1b f8 00 00res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Mar 13 08:56:29 wedgingt kernel: [121925.744839] ata2.00: status: { DRDY }
Mar 13 08:56:29 wedgingt kernel: [121925.744841] ata2: hard resetting link
Mar 13 08:56:30 wedgingt kernel: [121926.059355] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Mar 13 08:56:30 wedgingt kernel: [121926.064621] ata2.00: configured for UDMA/100
Mar 13 08:56:30 wedgingt rhythmbox.desktop[16448]: scsi_read error: sector=349858 length=27 retry=0
Mar 13 08:56:30 wedgingt kernel: [121926.065866] ata2: EH complete
Mar 13 08:56:30 wedgingt rhythmbox.desktop[16448]: Sense key: 5 ASC: 21 ASCQ: 4
Mar 13 08:56:30 wedgingt rhythmbox.desktop[16448]: Transport error: Illegal SCSI request (rejected by target)
Mar 13 08:56:30 wedgingt rhythmbox.desktop[16448]: System error: Invalid argument
Mar 13 08:57:20 wedgingt kernel: [121976.939509] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Mar 13 08:57:20 wedgingt kernel: [121976.939515] ata2.00: cmd a0/01:00:00:70:77/00:00:00:00:00/a0 tag 19 dma 30576 in
Mar 13 08:57:20 wedgingt kernel: [121976.939515] Volume set (in), Read cd be 00 00 05 56 a2 00 00 0d f8 00 00res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Mar 13 08:57:20 wedgingt kernel: [121976.939516] ata2.00: status: { DRDY }
Mar 13 08:57:20 wedgingt kernel: [121976.939518] ata2: hard resetting link
Mar 13 08:57:21 wedgingt kernel: [121977.253940] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Mar 13 08:57:21 wedgingt kernel: [121977.259226] ata2.00: configured for UDMA/100
Mar 13 08:57:21 wedgingt rhythmbox.desktop[16448]: scsi_read error: sector=349858 length=13 retry=1
Mar 13 08:57:21 wedgingt rhythmbox.desktop[16448]: Sense key: 5 ASC: 21 ASCQ: 4
Mar 13 08:57:21 wedgingt rhythmbox.desktop[16448]: Transport error: Illegal SCSI request (rejected by target)
Mar 13 08:57:21 wedgingt rhythmbox.desktop[16448]: System error: Invalid argument
Mar 13 08:57:21 wedgingt kernel: [121977.260496] ata2: EH complete
Mar 13 08:57:29 wedgingt gnome-shell[3230]: Some code accessed the property 'discreteGpuAvailable' on the module 'appDisplay'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Mar 13 08:57:29 wedgingt gnome-shell[3230]: ../clutter/clutter/clutter-actor.c:10558: The clutter_actor_set_allocation() function can only be called from within the implementation of the ClutterActor::allocate() virtual function.
Mar 13 08:57:30 wedgingt systemd[2994]: Started Application launched by gnome-shell.
Mar 13 08:57:30 wedgingt gnome-shell[1803751]: gio: cdda://sr0/: mount doesn�~@~Yt implement �~@~\eject�~@~] or �~@~\eject_with_operation�~@~]
Mar 13 08:57:30 wedgingt systemd[2994]: gnome-launched-gio-1803751.scope: Succeeded.
Mar 13 08:58:12 wedgingt kernel: [122028.146104] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Mar 13 08:58:12 wedgingt kernel: [122028.146110] ata2.00: cmd a0/01:00:00:20:37/00:00:00:00:00/a0 tag 16 dma 14112 in
Mar 13 08:58:12 wedgingt kernel: [122028.146110] Volume set (in), Read cd be 00 00 05 56 a2 00 00 06 f8 00 00res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Mar 13 08:58:12 wedgingt kernel: [122028.146111] ata2.00: status: { DRDY }
Mar 13 08:58:12 wedgingt kernel: [122028.146113] ata2: hard resetting link
Mar 13 08:58:12 wedgingt kernel: [122028.460550] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Mar 13 08:58:12 wedgingt kernel: [122028.465458] ata2.00: configured for UDMA/100
Mar 13 08:58:12 wedgingt rhythmbox.desktop[16448]: scsi_read error: sector=349858 length=6 retry=2
Mar 13 08:58:12 wedgingt rhythmbox.desktop[16448]: Sense key: 5 ASC: 21 ASCQ: 4
Mar 13 08:58:12 wedgingt rhythmbox.desktop[16448]: Transport error: Illegal SCSI request (rejected by target)
Mar 13 08:58:12 wedgingt rhythmbox.desktop[16448]: System error: Invalid argument
Mar 13 08:58:12 wedgingt kernel: [122028.466689] ata2: EH complete
Mar 13 08:58:17 wedgingt rhythmbox.desktop[16448]: scsi_read error: sector=349858 length=3 retry=3
Mar 13 08:58:17 wedgingt rhythmbox.desktop[16448]: Sense key: 2 ASC: 3a ASCQ: 2
Mar 13 08:58:17 wedgingt rhythmbox.desktop[16448]: Transport error: Device not ready
Mar 13 08:58:17 wedgingt rhythmbox.desktop[16448]: System error: No medium found
Mar 13 08:58:17 wedgingt tracker-miner-f[3011]: g_str_has_suffix: assertion 'str != NULL' failed
Mar 13 08:59:48 wedgingt kernel: [122124.361338] sr0: detected capacity change from 717930496 to 431785984
Mar 13 08:58:17 wedgingt tracker-miner-f[3011]: g_str_has_suffix: assertion 'str != NULL' failed