Dear John Manamara and DPDK experts. Thank you very much for your precious advice and answer.
I will try to upgrade the OS. I really appreciate to you for your excellent work and great contributions. Sincerely Yours, Ick-Sung Choi. -----Original Message----- From: "Mcnamara, John"<john.mcnam...@intel.com> To: "???"<pnk003 at naver.com>; "De Lara Guarch, Pablo"<pablo.de.lara.guarch at intel.com>; "dev at dpdk.org"<dev at dpdk.org>; Cc: Sent: 2015-10-15 (?) 17:10:48 Subject: RE: [dpdk-dev] I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). I cannot r > -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of ??? > Sent: Thursday, October 15, 2015 2:02 AM > To: De Lara Guarch, Pablo; dev at dpdk.org > Subject: Re: [dpdk-dev] I have a problem in setting up DPDK 2.1.0 in > Fedora OS release 20 (Heisenbug). I cannot r > > I checked what you mentioned. > > * Fedora Linux kernel version is as follows. > > $ uname -r (print kernel name) > 3.17.7-200.fc20.x86_64 Hi, This may be a known issue. See: http://dpdk.org/doc/guides/rel_notes/known_issues.html#devices-bound-to-igb-uio-with-vt-d-enabled-do-not-work-on-linux-kernel-3-15-3-17 "Devices bound to igb_uio with VT-d enabled do not work on Linux kernel 3.15-3.17 Description: When VT-d is enabled (iommu=pt intel_iommu=on), devices are 1:1 mapped. In the Linux kernel unbinding devices from drivers removes that mapping which result in IOMMU errors. Introduced in Linux kernel 3.15 commit, solved in Linux kernel 3.18 commit." John
