Hi, Thank you so much for your information.
Vivian seat: 19009 phone: 13738006921 -----Original Message----- From: Tan, Jianfeng [mailto:jianfeng....@intel.com] Sent: Wednesday, December 06, 2017 10:56 AM To: Yuanhan Liu <y...@fridaylinux.org>; Wang, Wei 5. (NSB - CN/Hangzhou) <wei.5.w...@nokia-sbell.com> Cc: dev@dpdk.org Subject: RE: [dpdk-dev] The limitation of VHOST_MEMORY_MAX_NREGIONS in virtio-user with vhost-user backend > -----Original Message----- > From: Yuanhan Liu [mailto:y...@fridaylinux.org] > Sent: Tuesday, December 5, 2017 10:42 PM > To: Wang, Wei 5. (NSB - CN/Hangzhou) > Cc: dev@dpdk.org; Tan, Jianfeng > Subject: Re: [dpdk-dev] The limitation of VHOST_MEMORY_MAX_NREGIONS > in virtio-user with vhost-user backend > > On Tue, Dec 05, 2017 at 06:58:53AM +0000, Wang, Wei 5. (NSB - > CN/Hangzhou) wrote: > > > > > > Hi, all > > > > In DPDK document, it it described that Virtio in containers Cannot work > when there are more than VHOST_MEMORY_MAX_NREGIONS(8) > hugepages. In another word, do not use 2MB hugepage so far. Do you know > the reason of this limitation? > > It comes from the vhost-user spec. > > > In my envirionment, the pdpe1gb is not set in cpu flag, so hugepage can't > be set to 1GB size. The hugepage number shall be more than 8 > > > > > > So is there any solution or workaround to fix this limitation? Or change > dpdk code to fix this limitation? > > > > AFAIK, there are no workarounds. And I think the DPDK EAL memory code > need be > refactored a bit to fix this limitation. Unforunately, seems there are no work > on that recently. For more info, you can refer to: http://dpdk.org/dev/patchwork/patch/10406/ Thanks, Jianfeng > > --yliu
