Getting DPDK to work with LKL
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$ uname -a
Linux ubuntu1404 3.19.0-47-generic #53~14.04.1-Ubuntu SMP Mon Jan 18 16:09:14 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
We are trying to get LKL working with DPDK.
Set this up as per https://github.com/lkl/linux/wiki/Howto:-DPDK-with-LKL
Ran into this crash which I was able to get past using the attached patch where I reorder dpdk_netdev creation in the init code.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007fb51c1a3dd4 in __cpu_try_get_lock (n=0) at arch/lkl/kernel/cpu.c:63
63 lkl_ops->mutex_lock(cpu.lock);
(gdb) bt
#0 0x00007fb51c1a3dd4 in __cpu_try_get_lock (n=0) at arch/lkl/kernel/cpu.c:63
#1 0x00007fb51c1a3f75 in lkl_cpu_get () at arch/lkl/kernel/cpu.c:99
Has anyone run into similar issues with DPDK and LKL ?
When I have my application opening multiple socket descriptors, I see LKL sub-system runs out of descriptors soon. I did try to "sysctl":"fs.file-max=2048000" in my config json and trying the LKL_FDSET in the code.
Has anyone ran into descriptor resource problem as these ?
How has been the experience with DPDK and LKL ?
Appreciate any help. We are interested in knowing any efforts to get DPDK working with LKL.