[dpdk-dev] processor/core count issue

[dpdk-dev] processor/core count issue

[Jeff Venable, Sr.]

In a VM Fusion environment configured with 2 processors with 1 core each I get the following:

PANIC in rte_eal_init():
Cannot init logs
4: [/lib/x86_64-linux-gnu/libc.so<http://libc.so/>.6(__libc_start_main+0xf5) [0x7f9fd3bdaec5]]
3: [/usr/lib/dpdk-2.0.0/librte_eal.so<http://librte_eal.so/>.1(rte_eal_init+0x123a) [0x7f9fd4f462fa]]
2: [/usr/lib/dpdk-2.0.0/librte_eal.so<http://librte_eal.so/>.1(__rte_panic+0xc3) [0x7f9fd4f449e8]]
1: [/usr/lib/dpdk-2.0.0/librte_eal.so<http://librte_eal.so/>.1(rte_dump_stack+0x16) [0x7f9fd4f4daa6]]
Aborted (core dumped)

rte_socket_id() was returning 0xFFFFFFFF here:

(gdb) bt
#0  0x00007ffff797ae95 in rte_malloc_socket () from /usr/lib/dpdk-2.0.0/librte_malloc.so.1
#1  0x00007ffff797af4e in rte_zmalloc_socket () from /usr/lib/dpdk-2.0.0/librte_malloc.so.1
#2  0x00007ffff7573ef8 in rte_ring_create () from /usr/lib/dpdk-2.0.0/librte_ring.so.1
#3  0x00007ffff777770d in rte_mempool_xmem_create () from /usr/lib/dpdk-2.0.0/librte_mempool.so.1
#4  0x00007ffff7777b97 in rte_mempool_create () from /usr/lib/dpdk-2.0.0/librte_mempool.so.1
#5  0x00007ffff7b90899 in ?? () from /usr/lib/dpdk-2.0.0/librte_eal.so.1
#6  0x00007ffff7b88d34 in ?? () from /usr/lib/dpdk-2.0.0/librte_eal.so.1
#7  0x00007ffff7b84950 in rte_eal_init () from /usr/lib/dpdk-2.0.0/librte_eal.so.1

When I reconfigured the VM to 1 processor with 2 cores, everything works as expected.

This was not a problem in 1.6.

Jeff

Re: [dpdk-dev] processor/core count issue

[Thomas Monjalon]

2015-07-17 03:40, Jeff Venable, Sr.:
> In a VM Fusion environment configured with 2 processors with 1 core each I get the following:
> 
> PANIC in rte_eal_init():
> Cannot init logs
> 4: [/lib/x86_64-linux-gnu/libc.so<http://libc.so/>.6(__libc_start_main+0xf5) [0x7f9fd3bdaec5]]
> 3: [/usr/lib/dpdk-2.0.0/librte_eal.so<http://librte_eal.so/>.1(rte_eal_init+0x123a) [0x7f9fd4f462fa]]
> 2: [/usr/lib/dpdk-2.0.0/librte_eal.so<http://librte_eal.so/>.1(__rte_panic+0xc3) [0x7f9fd4f449e8]]
> 1: [/usr/lib/dpdk-2.0.0/librte_eal.so<http://librte_eal.so/>.1(rte_dump_stack+0x16) [0x7f9fd4f4daa6]]
> Aborted (core dumped)
> 
> rte_socket_id() was returning 0xFFFFFFFF here:
> 
> (gdb) bt
> #0  0x00007ffff797ae95 in rte_malloc_socket () from /usr/lib/dpdk-2.0.0/librte_malloc.so.1
> #1  0x00007ffff797af4e in rte_zmalloc_socket () from /usr/lib/dpdk-2.0.0/librte_malloc.so.1
> #2  0x00007ffff7573ef8 in rte_ring_create () from /usr/lib/dpdk-2.0.0/librte_ring.so.1
> #3  0x00007ffff777770d in rte_mempool_xmem_create () from /usr/lib/dpdk-2.0.0/librte_mempool.so.1
> #4  0x00007ffff7777b97 in rte_mempool_create () from /usr/lib/dpdk-2.0.0/librte_mempool.so.1
> #5  0x00007ffff7b90899 in ?? () from /usr/lib/dpdk-2.0.0/librte_eal.so.1
> #6  0x00007ffff7b88d34 in ?? () from /usr/lib/dpdk-2.0.0/librte_eal.so.1
> #7  0x00007ffff7b84950 in rte_eal_init () from /usr/lib/dpdk-2.0.0/librte_eal.so.1

Please could you show which code is crashing and what is the root cause?