On Tue, Aug 30, 2022 at 01:59:16PM +0300, Dmitry Kozlyuk wrote: > Thank you for the most detailed info! > > 1. If you run the poisoner program the second time, > does it also see dirty memory immediately after mmap()?
If I run the poisoner program the second time, no dirty memory. There could be some difference on how my poisoner program and how testpmd using mmap. Because I notice that testpmd leaves the hugepage files under /dev/hugepage/rtemap_xxx even after testpmd exits. But my poisoner program didn't create any file under /dev/hugepage. > > 2. Kernel 4.19.90-2102 patchlevel 2102 is very high, > can there be any unusual patches applied? > Your host has "compute" in its name, > can it have patches that trade security for performance? I may need to talk with the kernel team on this. Indeed, I failed to reprouce the issue on a virtuam machine of kernel 4.18.0-305.12.1.el8_4.x86_64(2M page size instead of 1G).
