System (kernel) log is being flooded with Mem-info messages

Issue

• The kernel log is overwhelmed with following messages, and /var/log/messages is growing with them:

...
(...) kernel: Mem-info:
(...) kernel: Node 0 DMA per-cpu: empty
(...) kernel: Node 0 DMA32 per-cpu: empty
(...) kernel: Node 0 Normal per-cpu:
(...) kernel: cpu 0 hot: high 186, batch 31 used:87
(...) kernel: cpu 0 cold: high 62, batch 15 used:23
(...) kernel: cpu 1 hot: high 186, batch 31 used:2
(...) kernel: cpu 1 cold: high 62, batch 15 used:0
(...) kernel: cpu 2 hot: high 186, batch 31 used:15
(...) kernel: cpu 2 cold: high 62, batch 15 used:61
(...) kernel: cpu 3 hot: high 186, batch 31 used:1
...
(...) kernel: Node 1 HighMem: empty
(...) kernel: 1798038 pagecache pages
(...) kernel: Swap cache: add 49, delete 0, find 0/0, race 0+0
(...) kernel: Free swap  = 12517172kB
(...) kernel: Total swap = 12517368kB
(...) kernel: Free swap:       12517172kB
(...) kernel: 3342336 pages of RAM
(...) kernel: 302871 reserved pages
(...) kernel: 1536138 pages shared
(...) kernel: 49 pages swap cached
...

• It appears like some process went rogue and is doing "echo m > /proc/sysrq-trigger" in a loop.