Same for me, 4 crash since 17.04 upgrade but 1st I see with syslog
below:
kernel BUG at /build/linux-
lz1RHE/linux-4.10.0/include/linux/swapops.h:129!
and 8 lines with:
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [JS Helper:3994]
uname -a
Linux labtop 4.10.0-21-generic #23-Ubuntu SMP F
Like 1st post, exactly the same for me with new kernel 4.4.0-42.62
Hardware: Dell E5410/4GB i5/512Gb SSD, 16.04.1 LTS 64b full root
encryption.
Drop to initramfs without prompting to enter luks password.
Boot back with previous 4.4.0-38.57 is fine, no solution with update-initramfs
-u
Can I
Ok, problem solved, nothing related to the kernel, sorry for the post :(
in short: I install new ram the day before, around 15 boot crash with testing,
it he process I lost pam.d/common-auth file and /etc/crypttab ...
This missing file let me think I have the same bug.
Now 4.4.0-42.62 is fine
