kernel panic on resume from suspend with 4.4.0 kernels

[Jeremy A. Cribb]

My laptop repeatedly kernel panics after a botched "return from suspend" in my Samsung 900X laptop using (K)ubuntu 16.04.

Booting into 4.2.0-38-generic kernel seems to work fine.

Up until this point 4.2 and four different 4.4 kernels functioned properly 90% of the time. Even then, roughly one-in-ten 'resumes from suspend' would panic, usually with blinking caps-lock LED. Cold-shutdown and restart would bring the system back up with little to no issue. This time was different, not sure why.

Going through DebuggingKernelSuspend (https://wiki.ubuntu.com/DebuggingKernelSuspend)

DID THIS: Shutting the lid of your laptop, which is set to suspend on close.
DID THIS: Pressed the power button
GOT THIS: kernel panic-- no blinking caps lock, just a single unblinking half-cursor at the top-left of the screen

cat's of appropriate files are attached. If more is needed I am more than happy to oblige.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1634214

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Jeremy A. Cribb (cribb-jeremy)]

Attached the lsmod info as requested.

[Jeremy A. Cribb (cribb-jeremy)]

I cannot boot into 4.4 kernels without them panicking, so I cannot run apport-collect command.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.25

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu Xenial) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]