Hello James, Sorry to bother you. It's just that we have come across a problem that ghes_estatus_pool consume too much meory. I upgrade the linux kernel of a AMD machine from 4.18 to 5.10. The free memory decreased about 1GB. I found out it is because ghes_estatus_pool consumed about 900MB. root:~ # cat /proc/vmallocinfo | grep ghes 0xffffb3eb06aed000-0xffffb3eb06caf000 1843200 ghes_estatus_pool_init+0x3e/0xa0 pages=449 vmalloc N0=449 0xffffb3eb30001000-0xffffb3eb680d3000 940384256 ghes_estatus_pool_init+0x3e/0xa0 pages=229585 vmalloc vpages N0=229585 It is because the following commit alloc 64K for each ghes. ACPI / APEI: Make estatus pool allocation a static size https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.8-rc7&id=fb7be08f1a091ec243780bfdad4bf0c492057808 But the AMD machine have 14350 ghes, only 8 of them are nofified through NMI. 64K for each ghes. So it will consume about 900M [wxf@localhost ~]$ cat HEST.dsl | grep "Notify Type : 04 \[NMI\]" | wc -l 8 [wxf@localhost ~]$ cat HEST.dsl | grep "Notify Type :" | wc -l 14350 So I'm wondering whether we can revert this commit. I am not sure if there exists any retriction. Thanks a lot! Thanks, Xiongfeng
