Public bug reported:

Upgraded to disco, and I noticed that my SSD had read errors while
looking at dmesg.  When I rebooted, it won't boot any more due to disk
errors.

But when I tried booting with a 4.18 kernel, it allows me to boot
successfully without any errors.  Also, I booted an 18.10 USB disk to
check which SSD was failing and when I used GNOME disks to check the
filesystem, and there were no errors.

I'll try download disco-current to see if the errors can be shown and be
submitted here since I can't boot using 4.19 with my SSD.

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-4.19.0-13-generic 4.19.0-13.14
ProcVersionSignature: Ubuntu 4.18.0-15.16-generic 4.18.20
Uname: Linux 4.18.0-15-generic x86_64
ApportVersion: 2.20.10-0ubuntu21
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  shemgp    13115 F.... pulseaudio
CurrentDesktop: GNOME
Date: Mon Feb 25 15:12:17 2019
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=cc5ba738-82e8-404a-9bcc-f1dfed94fce0
InstallationDate: Installed on 2015-09-28 (1245 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: LENOVO 34361A0
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-15-generic 
root=UUID=da81a856-84d5-4ca7-8c0a-4f20006730bc ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-4.18.0-15-generic N/A
 linux-backports-modules-4.18.0-15-generic  N/A
 linux-firmware                             1.177
SourcePackage: linux
UpgradeStatus: Upgraded to disco on 2019-02-16 (9 days ago)
dmi.bios.date: 06/19/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: GCETB1WW (2.71 )
dmi.board.asset.tag: Not Available
dmi.board.name: 34361A0
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: 
dmi:bvnLENOVO:bvrGCETB1WW(2.71):bd06/19/2018:svnLENOVO:pn34361A0:pvrThinkPadX220:rvnLENOVO:rn34361A0:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X220
dmi.product.name: 34361A0
dmi.product.sku: LENOVO_MT_3436
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug disco third-party-packages

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https://bugs.launchpad.net/bugs/1817513

Title:
  4.19 causes disk read errors on CT256M550SSD3 SSD

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