swiotlb buffer is full (sz: 256 bytes), total 0 (slots), used 0 (slots)

Issue

In the /var/log/messages the following messages can be seen:

localhost kernel: ata_piix 0000:00:01.1: swiotlb buffer is full (sz: 256 bytes), total 0 (slots), used 0 (slots)
localhost kernel: ata_piix 0000:00:01.1: swiotlb buffer is full (sz: 256 bytes), total 0 (slots), used 0 (slots)
[...]
localhost kernel: ata_piix 0000:00:01.1: swiotlb buffer is full (sz: 256 bytes), total 0 (slots), used 0 (slots)

Environment

• CloudLinux 8

Solution

Update the kernel to at least kernel 4.18.0-425.3.1.lve.el8 version

# yum update kernel