Re: Kernel 5.1.15 stuck in compaction

2019-07-08 Thread Max Kellermann
On 2019/07/08 12:35, Max Kellermann wrote: > one of our web servers got repeatedly stuck in the memory compaction > code; two PHP processes have been busy at 100% inside memory > compaction after a page fault: This trace maybe helpful as well; the first PHP process: 275.846 compaction:mm_comp

Kernel 5.1.15 stuck in compaction

2019-07-08 Thread Max Kellermann
Hi, one of our web servers got repeatedly stuck in the memory compaction code; two PHP processes have been busy at 100% inside memory compaction after a page fault: 100.00% 0.00% php-cgi7.0 [kernel.vmlinux] [k] page_fault | ---page_fault __do_page_