WD NVME SSD Freezing on Linux


I recently got a ThinkPad E14 AMD Ryzen 5 that came with 256GB NVME SSD soldered and had a slot for one more SSD. So I bought a WD Blue SN550 500GB SSD to fill in that second slot, and all hell broke loose.

The problem

The laptop freezes randomly and spits out these error messages

{ 206.681465] EXT4-fs error (device dm-4) in ext4 free. inode:355: IO failure
{ 206.775200] EXT4-fs error (device dm-4): ext4_wait_block_bitmap:[email protected]: comm cheese:cs0: Cannot read block bitmap - block_group = 38, block_bitmap = 1048582
{ 206.775410] EXT4-fs error (device dm-4): ext4_discard_preallocations:4090: comm cheese:cs0: Error -5 reading block bitmap for 38
{ 213.584473] EXT4-fs error (device dm-4): ext4_journal_check_start :84: Detected aborted journal

And there is not much to do there other than hard rebooting the laptop.

What I tried and failed

  1. Installed multiple newer kernel versions : No luck ( The latest kernel I tried is 5.10.15-051015-generic )
  2. Reinstalled multiple different distros: Wanted to make sure that it wasn't any distro specific (I know it makes no sense, but I tried anyway) : No luck
  3. Re-seated the SSD: No luck
  4. Updated all the firmware using Windows: No luck

What worked : A potential solution

I stumbled upon THIS bug report and it had the same issue. The suggestion was to try and disable APST. So I added the following to the kernel boot parameter


How to update the Kernel parameter

First of all, figure out if you are using Grub or systemd boot. If you are using Pop OS!, you are most probably using systemd-boot. I believe Ubuntu is still using Grub2, please do your research.

For Grub

Edit /etc/default/grub as root (You can use your favourite text editor). If you don't have one, do sudo gedit /etc/default/grub

Find the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add the parameter there. Your line should look like this now (Make sure it is a single line with no line break)

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nvme_core.default_ps_max_latency_us=5500"

And update grub using

sudo update-grub

For Systemd boot

Find your loader configuration. For example, Pop OS! conf path is


Edit the file and find the line that starts with options and add the parameter to the end of the line. It should look like this after adding the entry

options root=UUID=350fc3dc-9ed1-440d-9a8f-922ee8c6511f ro quiet loglevel=0 systemd.show_status=false splash nvme_core.default_ps_max_latency_us=5500

And reboot. That's pretty much it.


Although it works with these Kernel parameters, we are adjusting the power setting for these SSDs and I did not want it to affect my laptop battery. So I ended up returning the SSD and I am using the internal SSD. It just works


Some of these threads are talking about the same thing