`linux-system76` update crashes system when generating initramfs

On a Galago Pro (galp5) laptop.

Distribution (run cat /etc/os-release):

NAME="Pop!_OS"
VERSION="22.04 LTS"

Related Application and/or Package Version (run apt policy $PACKAGE NAME):

linux-system76:
  Installed: 6.6.10.76060610.202401051437~1709764300~22.04~379e7a9
  Candidate: 6.6.10.76060610.202401051437~1709764300~22.04~379e7a9
  Version table:
 *** 6.6.10.76060610.202401051437~1709764300~22.04~379e7a9 1001
       1001 http://apt.pop-os.org/release jammy/main amd64 Packages
        100 /var/lib/dpkg/status

Issue/Bug Description:

In the middle of running apt upgrade, the system suddenly crashed and halted. When rebooting in default mode, it was unable to mount disks and started a failsafe mode.

When rebooting with the previous kernel conf (oldkern.conf) , it booted succesfully.

apt reports that the linux-system76 package is not correctly configured and that we should run sudo dpkg --configure -a to fix it. When running the command, the system crashes again in the exact same way, when generating the initramfs for the new kernel.

Reproduced consistently across several attempts, while on battery. It always fails at the same time.

A few minutes later I tried again while plugged in, and the initramfs generation completed successfully.

Steps to reproduce (if you know):

While running on battery, try to install the latest version of linux-system76
It will fail when generating the initramfs and suddenly halt the system
On reboot, default config will fail to boot and land in single user mode
Reboot with oldkern.conf config
Run sudo dpkg --configure -a
It crashes in the same way during the same step

Expected behavior:

Initramfs should be able to be generated without crashing the system.

Other Notes:

pop-os / pop

`linux-system76` update crashes system when generating initramfs #3247