This reverts commit 593a084afc2b441895aeca78a2c4465e450d0ef5. Since recently [1], it is not possible to run the dpdk with non-root privileges and the --no-huge option. This is because the eal layer tries to lock the memory. Using locked memory is mandatory for physical devices because they reference physical addresses.
But a user may want to start the dpdk without locked memory, because he does not have the permission to do so, and/or does not have this need, for instance because he uses virtual drivers. So this commit reverts the use of MAP_LOCKED in mmap() flags. [1] http://www.dpdk.org/ml/archives/dev/2016-May/039404.html Fixes: 593a084afc2b ("mem: lock pages when not using hugepages") Reported-by: Panu Matilainen <pmatilai at redhat.com> Signed-off-by: Olivier Matz <olivier.matz at 6wind.com> --- lib/librte_eal/linuxapp/eal/eal_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c index 9251a5b..1fc7545 100644 --- a/lib/librte_eal/linuxapp/eal/eal_memory.c +++ b/lib/librte_eal/linuxapp/eal/eal_memory.c @@ -1074,7 +1074,7 @@ rte_eal_hugepage_init(void) /* hugetlbfs can be disabled */ if (internal_config.no_hugetlbfs) { addr = mmap(NULL, internal_config.memory, PROT_READ | PROT_WRITE, - MAP_LOCKED | MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); + MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); if (addr == MAP_FAILED) { RTE_LOG(ERR, EAL, "%s: mmap() failed: %s\n", __func__, strerror(errno)); -- 2.8.1
