[dpdk-users] Not supported card on board, is segfault expected?

Filip Janiszewski contact at filipjaniszewski.com
Wed Feb 27 14:01:13 CET 2019


Hi,

I'm running DPDK 18.05 with a nic card that is not present in the list
of supported devices: MCX512F-ACAT (ConnectX®-5 EN network interface
card, 25GbE dual-port SFP28, PCIe3.0 x16, tall bracket), during
rte_eal_init there's a segfault:

.
#0  0x00007ffff77a98ce in mlx5_alloc_td () from /lib64/libmlx5.so.1

#1  0x0000000000784008 in mlx5_pci_probe (pci_drv=<optimized out>,
pci_dev=0xfc04d0)

    at dpdk-18.05/drivers/net/mlx5/mlx5.c:1021

#2  0x0000000000599a7f in pci_probe_all_drivers.part.1 ()

#3  0x0000000000599bbe in rte_pci_probe ()

#4  0x000000000057ad7c in rte_bus_probe ()

#5  0x000000000056a73e in rte_eal_init ()

#6  0x000000000047312a in main (argc=4, argv=0x7fffffffe5a8) at
/home/fjaniszewski/SDC/P2D/repo/p2d-megamole/mm_main.c:163
.

Shall I always expect segmentation faults like this when DPDK is
executed on a system with unsupported nic card? Shouldn't those cards
just be ignored? Did any of you encountered a similar segfault?

Thanks

-- 
BR, Filip
+48 666 369 823


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