Hi ?all I am suffering from the problem mmap failed as followed when init dpdk eal.
Fri Jan 30 09:03:29 2015:EAL: Setting up memory... Fri Jan 30 09:03:34 2015:EAL: map_all_hugepages(): mmap failed: Cannot allocate memory Fri Jan 30 09:03:34 2015:EAL: Failed to mmap 2 MB hugepages Fri Jan 30 09:03:34 2015:EAL: Cannot init memory Before I run the demo, the free hugepages of my host is : cat /proc/meminfo MemTotal: 132117056 kB MemFree: 122040292 kB Buffers: 10984 kB Cached: 123056 kB SwapCached: 0 kB Active: 120812 kB Inactive: 85860 kB Active(anon): 79488 kB Inactive(anon): 364 kB Active(file): 41324 kB Inactive(file): 85496 kB Unevictable: 23576 kB Mlocked: 23576 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 2576 kB Writeback: 0 kB AnonPages: 96236 kB Mapped: 19936 kB Shmem: 552 kB Slab: 101344 kB SReclaimable: 24164 kB SUnreclaim: 77180 kB KernelStack: 2544 kB PageTables: 4180 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 61864224 kB Committed_AS: 585844 kB VmallocTotal: 34359738367 kB VmallocUsed: 518656 kB VmallocChunk: 34292133264 kB HardwareCorrupted: 0 kB AnonHugePages: 4096 kB HugePages_Total: 4096 HugePages_Free: 4096 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 96256 kB DirectMap2M: 6178816 kB DirectMap1G: 127926272 kB And after the demo executed, I got the hugepages like this: cat /proc/meminfo MemTotal: 132117056 kB MemFree: 117325180 kB Buffers: 33508 kB Cached: 721912 kB SwapCached: 0 kB Active: 4217712 kB Inactive: 540956 kB Active(anon): 4019068 kB Inactive(anon): 121136 kB Active(file): 198644 kB Inactive(file): 419820 kB Unevictable: 23908 kB Mlocked: 23908 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 2856 kB Writeback: 0 kB AnonPages: 4035184 kB Mapped: 160292 kB Shmem: 122100 kB Slab: 177908 kB SReclaimable: 64808 kB SUnreclaim: 113100 kB KernelStack: 7560 kB PageTables: 62128 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 61864224 kB Committed_AS: 8789664 kB VmallocTotal: 34359738367 kB VmallocUsed: 527296 kB VmallocChunk: 34292122604 kB HardwareCorrupted: 0 kB AnonHugePages: 262144 kB HugePages_Total: 4096 HugePages_Free: 2048 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 141312 kB DirectMap2M: 9279488 kB DirectMap1G: 124780544 kB Only the hugepages beyond to node1 was mapped. I was told host(having 64bit OS) cannot allocate memory while node0 has 2048 free hugepages,why? Dose anyone encountered the similar problem ever? Any response will be appreciated! Thanks!
