Unsafe shutdowns on TOSHIBA THNSF5256GPUK NVME

[Jordan Glover]

Hello,

I have problem with "unsafe shutdowns" on Lenovo laptop with TOSHIBA
THNSF5256GPUK NVME disk. It happens every time I power-off my machine and I can
hear characteristic "click" sound like with rotational disks. (maybe that's
something else but I'm basing on info from S.M.A.R.T data not this).

I looked around and saw that people report similar problems in different NVME
disks[1][2], even across different OSes[3][4]. I also found some old patches
witch tried to deal with this[5].

I know that my disk was already put on $hitlist due to power saving issues[6].

I tested this with linux kernels 4.14.x - 4.15. My BIOS and disk firmware are
updated.

Is there anything I could do to resolve this issue? Thx for any help.

Jordan

[1] https://bbs.archlinux.org/viewtopic.php?id=230723
[2] https://bugs.alpinelinux.org/issues/5082
[3]https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211852
[4] https://www.win-raid.com/t2041f38-SAMSUNG-PRO-NVMe-SSD-unsafe-shutdowns-NVMe-driver-W-x-unexpected-shutdown.html
[5] http://lists.infradead.org/pipermail/linux-nvme/2014-March/000744.html
[6] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/nvme/host/core.c#n1950