We attempted to upgrade 4 SUSE linux z/VM 6.4 guests this last weekend and 2
of them failed with
{FAILED] Failed to start Load Kernel Modules
Many Out of Memory messages
Kernel panic - not syncing: Out of memory and no killable processes
CPU: 1 PID:250 Comm kworker/u128:2 Not tainted 4.4.131-94.29-default #1
Then CP entered; disable wait.....
The upgrade was successful, but got the above after the first boot.
The 2 upgrades that succeeded uses a kernel 4.12.14-95.16-default. Had to
restore the faild systems from backups.
Opened an S.R. with SUSE, and the engineer told be to upgrade again, but before
rebooting check grub and make sure it selects the right kernel.
Has anyone else seen this? The 2 failed guests are both 20GiB oracle database
servers with hugepages turned on. The 2 that succeeded do not use hugepages
and are only 6GiB in size.
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