On (01/28/19 10:18), Vlastimil Babka wrote: > On 1/28/19 9:57 AM, Sergey Senozhatsky wrote: > > Hello, > > > > next-20190125 > > > > kcompactd0 is spinning on something, burning CPUs in the meantime: > > Hi, could you check/add this to the earlier thread? Thanks. > > https://lore.kernel.org/lkml/20190126200005.GB27513@amd/T/#u Hi, Will reply here. Thanks for the link, Vlastimil. Will "test" Jan's patch (don't have a reproducer yet). So far, I can confirm that echo 3 > /proc/sys/vm/drop_caches mentioned in that thread does "solve" the issue. -ss