On 2022/04/18 15:29, Bo Xu wrote: > Hi, Yang > > From the messages you provided, there are not much free pages. > I guess the page alloc is happing in Node 0 with zone > Normal.But in zone Normal free mem is lower than low mem,so > there are some memory pressure is your machine.But now i have > no idea why page recliam or others did not make effect. > The kernel says that it was a GFP_NOWAIT allocation request, which does not wait for page reclaim or others. java: page allocation failure: order:0, mode:0x400000(GFP_NOWAIT), nodemask=(null),cpuset=/,mems_allowed=0 CPU: 6 PID: 7121 Comm: java Kdump: loaded Not tainted 4.19.95-29 #1 Question is why it was a GFP_NOWAIT allocation request. Try installing debuginfo kernel package and decoding exact call traces (filenames and lines) using scripts/faddr2line .
