Public bug reported:

Hi,

I am on a Thinkpad 25. When copying from the integrated nvme to an
externally connected USB3 Sandisk Extreme Portable SSD using dd, the
system locks up (completely with stuttering sound and the screen going
black after 10 secs) at the 98 GB mark.

Command I am running:

dd if=/dev/nvme0n1 of=/dev/sda bs=1M status=progress

Kernel output: kern1.log attached, system freezes

Alternatively, when trying to copy to an image on the file system: dd
if=/dev/nvme0n1 of=/mnt/sandisk/nvme0n1.img bs=1M status=progress

Kernel output: kern2.log attached, system freezes

It works perfectly fine, when I run dd if=/dev/zero of=/dev/sda and dd
if=/dev/nvme0n1 of=/dev/null, way beyond the 98GB mark. Also badblocks
does not report any errors on /dev/sda.

Kernel version: Ubuntu 5.4.0-37.41-generic 5.4.41
lspci -vnvn: attached
lsusb -vvv: attached

Cheers!

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

** Attachment added: "kern1.log, kern2.log, lspci, lsusb"
   https://bugs.launchpad.net/bugs/1883359/+attachment/5383488/+files/all.log

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https://bugs.launchpad.net/bugs/1883359

Title:
  System lockup when copying exactly 98 GB from NVME to USB3 device

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I am on a Thinkpad 25. When copying from the integrated nvme to an
  externally connected USB3 Sandisk Extreme Portable SSD using dd, the
  system locks up (completely with stuttering sound and the screen going
  black after 10 secs) at the 98 GB mark.

  Command I am running:

  dd if=/dev/nvme0n1 of=/dev/sda bs=1M status=progress

  Kernel output: kern1.log attached, system freezes

  Alternatively, when trying to copy to an image on the file system: dd
  if=/dev/nvme0n1 of=/mnt/sandisk/nvme0n1.img bs=1M status=progress

  Kernel output: kern2.log attached, system freezes

  It works perfectly fine, when I run dd if=/dev/zero of=/dev/sda and dd
  if=/dev/nvme0n1 of=/dev/null, way beyond the 98GB mark. Also badblocks
  does not report any errors on /dev/sda.

  Kernel version: Ubuntu 5.4.0-37.41-generic 5.4.41
  lspci -vnvn: attached
  lsusb -vvv: attached

  Cheers!

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