My bad - I was too quick in replying - some clarification beneath. > -----Original Message----- > From: Shreyansh Jain > Sent: Wednesday, April 12, 2017 3:55 PM > To: 'Bruce Richardson' <bruce.richard...@intel.com> > Cc: Thomas Monjalon <thomas.monja...@6wind.com>; john miller > <john.mil...@atomicrules.com>; dev@dpdk.org; olivier.m...@6wind.com > Subject: RE: [dpdk-dev] error in testpmd when CONFIG_RTE_BUILD_SHARED_LIB=y > > > -----Original Message----- > > From: Bruce Richardson [mailto:bruce.richard...@intel.com] > > Sent: Wednesday, April 12, 2017 3:35 PM > > To: Shreyansh Jain <shreyansh.j...@nxp.com> > > Cc: Thomas Monjalon <thomas.monja...@6wind.com>; john miller > > <john.mil...@atomicrules.com>; dev@dpdk.org; olivier.m...@6wind.com > > Subject: Re: [dpdk-dev] error in testpmd when CONFIG_RTE_BUILD_SHARED_LIB=y > > > > On Wed, Apr 12, 2017 at 04:52:47AM +0000, Shreyansh Jain wrote: > > > > -----Original Message----- > > > > From: Thomas Monjalon [mailto:thomas.monja...@6wind.com] > > > > Sent: Wednesday, April 12, 2017 12:58 AM > > > > To: john miller <john.mil...@atomicrules.com> > > > > Cc: dev@dpdk.org; olivier.m...@6wind.com; Shreyansh Jain > > > > <shreyansh.j...@nxp.com> > > > > Subject: Re: [dpdk-dev] error in testpmd when > > CONFIG_RTE_BUILD_SHARED_LIB=y > > > > > > > > 2017-04-11 14:02, john miller: > > > > > > > > > > We are seeing an issue when running from the head of the master > branch > > in > > > > dpdk-next-net and building with CONFIG_RTE_BUILD_SHARED_LIB=y. When > we > > run > > > > testpmd using -d to point to our PMD we get this error > > > > > > > > > > EAL: Error - exiting with code: 1 > > > > > Cause: Creation of mbuf pool for socket 0 failed: Invalid argument > > > > > > > > > > This error occurs as a result of the rte mempool ops table having 0 > > > > entries. This table is populated from a call to > > rte_mempool_register_ops(). > > > > This function gets called in rte_mempool_ring.c via the static > > initialization > > > > MACRO MEMPOOL_REGISTER_OPS and exists in librte_mempool_ring.so. > However > > > > this library is not loaded when the rte_eal_init() gets called so the > > static > > > > initializers are not yet loaded. > > > > > > > > > > I am requesting advice on the proper way to repair this. > > > > > > "-d" the ring library (rte_mempool_ring) - just like any other shared > lib. > > > > > > > I think this is a bug that should be fixed. The user should not need to > > have to specify a mempool driver just to get testpmd working, so I think > > the ring handler as default should be compiled in automatically so as to > > allow regular mempools to just work as before. > > For Ring Mempool as default enabled, +1 Actually, Ring mempool is enabled by default. But, obviously for shared library case, this still means "-d".
> > > > > > This change was done recently to move ring handler into its separate > > drivers/mempool/ring directory. That also means it no longer is compiled > into > > the librte_mempool. > > > > > > > > > > > We should just add a better error message if no mempool driver is > > available. > > > > > > Yes, that is something to be improved. > > > > This should be fixed by always having a mempool driver installed. > > Agree. Probably, as ring mempool is a driver and compiled in shared mode, enabled by default will not fix this. > Otherwise also, the framework seems to be replying with a valid code 'EINVAL' > for an invalid mempool specified. > > > > > /Bruce
