> On 05 Feb 2015, at 15:59, Neil Horman <nhorman at tuxdriver.com> wrote: > > On Thu, Feb 05, 2015 at 01:20:01PM +0000, Damjan Marion (damarion) wrote: >> >>> On 05 Feb 2015, at 13:59, Neil Horman <nhorman at tuxdriver.com> wrote: >>> >>> On Thu, Feb 05, 2015 at 12:00:48PM +0000, Damjan Marion (damarion) wrote: >>>> Hi, >>>> >>>> I have system with 2 NUMA nodes and 256G RAM total. I noticed that DPDK >>>> crashes in rte_eal_init() >>>> when number of available hugepages is around 40000 or above. >>>> Everything works fine with lower values (i.e. 30000). >>>> >>>> I also tried with allocating 40000 on node0 and 0 on node1, same crash >>>> happens. >>>> >>>> >>>> Any idea what might be causing this? >>>> >>>> Thanks, >>>> >>>> Damjan >>>> >>>> >>>> $ cat >>>> /sys/devices/system/node/node[01]/hugepages/hugepages-2048kB/nr_hugepages >>>> 20000 >>>> 20000 >>>> >>>> $ grep -i huge /proc/meminfo >>>> AnonHugePages: 706560 kB >>>> HugePages_Total: 40000 >>>> HugePages_Free: 40000 >>>> HugePages_Rsvd: 0 >>>> HugePages_Surp: 0 >>>> Hugepagesize: 2048 kB >>>> >>> Whats your shmmax value set to? 40000 2MB hugepages is way above the default >>> setting for how much shared ram a system will allow. I've not done the >>> math on >>> your logs below, but judging by the size of some of the mapped segments, I'm >>> betting your hitting the default limit of 4GB. >> >> $ cat /proc/sys/kernel/shmmax >> 33554432 >> >> $ sysctl -w kernel.shmmax=8589934592 >> kernel.shmmax = 8589934592 >> >> same crash :( >> >> Thanks, >> >> Damjan > > What about the shmmni and shmmax values. The shmmax value will also need to > be > set to at least 80G (more if you have other shared memory needs), and shmmni > will need to be larger than 40,000 to handle all the segments your creating. > Neil
Hmm, if that is the reason, then 30000 will also not work. as both values are set by default to much much lower value. Anyway, I tried: $ sysctl kernel.shmmni kernel.shmmni = 100000 $ sysctl kernel.shmmax kernel.shmmax = 274877906944 $ cat /sys/devices/system/node/node[01]/hugepages/hugepages-2048kB/nr_hugepages 20000 20000 $ sudo ~/src/dpdk/x86_64-native-linuxapp-gcc/app/testpmd -l 5-7 -n 3 --socket-mem 512,512 EAL: Detected lcore 0 as core 0 on socket 0 EAL: Detected lcore 1 as core 1 on socket 0 EAL: Detected lcore 2 as core 2 on socket 0 EAL: Detected lcore 3 as core 3 on socket 0 EAL: Detected lcore 4 as core 4 on socket 0 EAL: Detected lcore 5 as core 5 on socket 0 EAL: Detected lcore 6 as core 6 on socket 0 EAL: Detected lcore 7 as core 7 on socket 0 EAL: Detected lcore 8 as core 0 on socket 1 EAL: Detected lcore 9 as core 1 on socket 1 EAL: Detected lcore 10 as core 2 on socket 1 EAL: Detected lcore 11 as core 3 on socket 1 EAL: Detected lcore 12 as core 4 on socket 1 EAL: Detected lcore 13 as core 5 on socket 1 EAL: Detected lcore 14 as core 6 on socket 1 EAL: Detected lcore 15 as core 7 on socket 1 EAL: Detected lcore 16 as core 0 on socket 0 EAL: Detected lcore 17 as core 1 on socket 0 EAL: Detected lcore 18 as core 2 on socket 0 EAL: Detected lcore 19 as core 3 on socket 0 EAL: Detected lcore 20 as core 4 on socket 0 EAL: Detected lcore 21 as core 5 on socket 0 EAL: Detected lcore 22 as core 6 on socket 0 EAL: Detected lcore 23 as core 7 on socket 0 EAL: Detected lcore 24 as core 0 on socket 1 EAL: Detected lcore 25 as core 1 on socket 1 EAL: Detected lcore 26 as core 2 on socket 1 EAL: Detected lcore 27 as core 3 on socket 1 EAL: Detected lcore 28 as core 4 on socket 1 EAL: Detected lcore 29 as core 5 on socket 1 EAL: Detected lcore 30 as core 6 on socket 1 EAL: Detected lcore 31 as core 7 on socket 1 EAL: Support maximum 128 logical core(s) by configuration. EAL: Detected 32 lcore(s) EAL: VFIO modules not all loaded, skip VFIO support... EAL: Setting up memory... EAL: Ask a virtual area of 0x80000000 bytes EAL: Virtual area found at 0x7fe280000000 (size = 0x80000000) EAL: Ask a virtual area of 0x80000000 bytes EAL: Virtual area found at 0x7fe1c0000000 (size = 0x80000000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe335c00000 (size = 0x200000) EAL: Ask a virtual area of 0x9400000 bytes EAL: Virtual area found at 0x7fe32c600000 (size = 0x9400000) EAL: Ask a virtual area of 0x5c00000 bytes EAL: Virtual area found at 0x7fe326800000 (size = 0x5c00000) EAL: Ask a virtual area of 0x38e00000 bytes EAL: Virtual area found at 0x7fe247000000 (size = 0x38e00000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe326400000 (size = 0x200000) EAL: Ask a virtual area of 0x8000000 bytes EAL: Virtual area found at 0x7fe31e200000 (size = 0x8000000) EAL: Ask a virtual area of 0x815800000 bytes EAL: Virtual area found at 0x7fd9aa600000 (size = 0x815800000) EAL: Ask a virtual area of 0x1f400000 bytes EAL: Virtual area found at 0x7fd98b000000 (size = 0x1f400000) EAL: Ask a virtual area of 0xfd400000 bytes EAL: Virtual area found at 0x7fd88da00000 (size = 0xfd400000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31de00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31da00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31d600000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31d200000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31ce00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31ca00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31c600000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31c200000 (size = 0x200000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fe31bc00000 (size = 0x400000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fe31b600000 (size = 0x400000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31b200000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31ae00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31aa00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31a600000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe31a200000 (size = 0x200000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fe319c00000 (size = 0x400000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe319800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe319400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe319000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe318c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe318800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe318400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe318000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe317c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe317800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe317400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe317000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe316c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe316800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe316400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe316000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe315c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe315800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe315400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe315000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe314c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe314800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe314400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe314000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe313c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe313800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe313400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe313000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe312c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe312800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe312400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe312000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe311c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe311800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe311400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe311000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe310c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe310800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe310400000 (size = 0x200000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fe30fe00000 (size = 0x400000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30fa00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30f600000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30f200000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30ee00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30ea00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30e600000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30e200000 (size = 0x200000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fe30dc00000 (size = 0x400000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30d800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30d400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30d000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30cc00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30c800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30c400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30c000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30bc00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30b800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30b400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30b000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30ac00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30a800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30a400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe30a000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe309c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe309800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe309400000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe309000000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe308c00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fe308800000 (size = 0x200000) EAL: Ask a virtual area of 0x2f800000 bytes EAL: Virtual area found at 0x7fd85e000000 (size = 0x2f800000) EAL: Ask a virtual area of 0x7400000 bytes EAL: Virtual area found at 0x7fe301200000 (size = 0x7400000) EAL: Ask a virtual area of 0x9b5400000 bytes EAL: Virtual area found at 0x7fcea8a00000 (size = 0x9b5400000) EAL: map_all_hugepages(): mmap failed: Cannot allocate memory EAL: Failed to remap 2 MB pages PANIC in rte_eal_init(): Cannot init memory
