From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [119.145.14.64]) by dpdk.org (Postfix) with ESMTP id BFDEC234 for ; Fri, 30 Jan 2015 12:40:42 +0100 (CET) Received: from 172.24.2.119 (EHLO szxeml428-hub.china.huawei.com) ([172.24.2.119]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CIV19862; Fri, 30 Jan 2015 19:40:40 +0800 (CST) Received: from [127.0.0.1] (10.177.36.171) by szxeml428-hub.china.huawei.com (10.82.67.183) with Microsoft SMTP Server id 14.3.158.1; Fri, 30 Jan 2015 19:40:35 +0800 Message-ID: <54CB6DAA.4060908@huawei.com> Date: Fri, 30 Jan 2015 19:40:26 +0800 From: "zhangsha (A)" User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Content-Type: text/plain; charset="gbk"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.177.36.171] X-CFilter-Loop: Reflected Subject: [dpdk-dev] mmap failed: Cannot allocate memory when init dpdk eal X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Jan 2015 11:40:44 -0000 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!