[ovs-discuss] rte_eal_init() error when using ovs-dpdk with secondary application.

Junguk Cho jmanbal at gmail.com
Thu Jun 15 09:05:01 UTC 2017


Hi,

I use ovs-dpdk (ovs-2.7, dpdk-16.11.1) with one application which talks to
ovs by using ring device and "--proc-type=secondary" (secondary processes).
It generally works well, but sometimes it shows this error.

It seems it could not find correct memory mapping in the application.

2017-06-13 11:21:40.988 STDERR Thread-2 [INFO] EAL: Probing VFIO support...
2017-06-13 11:21:40.988 STDERR Thread-2 [INFO] EAL: WARNING: Address Space
Layout Randomization (ASLR) is enabled in the kernel.
2017-06-13 11:21:40.988 STDERR Thread-2 [INFO] EAL:    This may cause
issues with mapping memory into secondary processes
2017-06-13 11:21:40.989 STDERR Thread-2 [INFO] EAL: Could not mmap
17146314752 <(714)%20631-4752> bytes in /dev/zero at [0x7f662c800000], got
[0x7f6506000000] - please use '--base-virtaddr' option
2017-06-13 11:21:40.989 STDERR Thread-2 [INFO] EAL: It is recommended to
disable ASLR in the kernel and retry running both primary and secondary
processes
2017-06-13 11:21:40.990 STDERR Thread-2 [INFO] PANIC in rte_eal_init():
2017-06-13 11:21:40.990 STDERR Thread-2 [INFO] Cannot init memory

I tried to disable ASLR, but it did not work.

Does anyone have a similar situation?
Based on this page (https://github.com/collectd/collectd/issues/2284), this
is known issue and it seemed we can avoid this with "--base-virtaddr"
option.
Does anyone know how to use this option in ovs-dpdk?

Thanks,
Junguk
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