On 06/22/2018 12:00 AM, Rick Stevens wrote:
On 06/21/2018 11:13 AM, Susi Lehtola wrote:
Update: I upgraded from Fedora 27 to Fedora 28, and the same issue persists. Of course, the kernel is almost the same.

This has to be some weird kernel / BIOS bug...

Can you send us the content of /proc/cmdline?

$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-4.16.16-300.fc28.x86_64
root=/dev/mapper/luks-1d176bad-1b27-4e38-8c18-61a8b96517db ro
rd.luks.uuid=luks-1d176bad-1b27-4e38-8c18-61a8b96517db
rd.luks.uuid=luks-aae08a03-2832-4b82-8d74-598e02c6c445 rhgb quiet
LANG=en_US.UTF-8

Also check any RAMdisks you may have (e.g. "df -h | grep tmpfs"). See
if any of them are possibly eating up RAM. I'd suspect /tmp and
(possibly) your swap partition.
$ df -h |grep tmpfs
devtmpfs        3.9G     0  3.9G   0% /dev
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           3.9G  1.8M  3.9G   1% /run
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs           3.9G  104K  3.9G   1% /tmp
tmpfs           789M   16K  789M   1% /run/user/42
tmpfs           789M   24K  789M   1% /run/user/1000

so this still would leave something like 40GB missing.

I opened up a bug on the kernel tracker at
https://bugzilla.redhat.com/show_bug.cgi?id=1593878
--
Susi Lehtola
Fedora Project Contributor
jussileht...@fedoraproject.org
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