Re: [dpdk-dev] [PATCH v2] ixgbe: fix segmentation fault when start secondary process

[Thomas Monjalon <thomas.monjalon@6wind.com>]

2014-12-19 14:59, Michael Qiu:
> EAL:   probe driver: 8086:10fb rte_ixgbe_pmd
> EAL:   PCI memory mapped at 0x7f18c2a00000
> EAL:   PCI memory mapped at 0x7f18c2a80000
> Segmentation fault (core dumped)
> 
> This is introduced by commit: 46bc9d75
> 	ixgbe: fix multi-process support
> When start primary process with command line:
> ./app/test/test -n 1 -c ffff -m 64
> then start the second one:
> ./app/test/test -n 1 --proc-type=secondary --file-prefix=rte
> This segment-fault will occur.
> 
> Root cause is test app on primary process only starts device, but
> the queue need initialized by manually command line.
> So the tx queue is still NULL when secondary process startup.
> 
> Reported-by: Yong Liu <yong.liu@intel.com>
> Signed-off-by: Michael Qiu <michael.qiu@intel.com>
> ---
> v2 --> v1:
> 	Log clean up

Clean-up failed: no need of \n in PMD_INIT_LOG ;)

> +			PMD_INIT_LOG(INFO, "No TX queues configured yet. "
> +					   "Using default TX function\n");

-- 
Thomas