[dpdk-dev] virtio PMD issue

Harish Patil harish.patil at qlogic.com
Fri Jul 15 22:06:37 CEST 2016


>
>it is fixed in 16.07-rc2 that I checked

Great, thanks.

>
>Vincent
>
>On Fri, Jul 15, 2016 at 11:48 AM, Harish Patil <harish.patil at qlogic.com>
>wrote:
>> Hi Huawie/Yuanhan,
>> I encounter segfault issue in virtio PMD driver when I run any DPDK
>> application in the VM. The virtio devices should not have been probed in
>> the first place since they are not attached to igb_uio driver (and
>>managed
>> by kernel driver).
>>
>>
>> Network devices using DPDK-compatible driver
>> ============================================
>> 0000:00:09.0 'FastLinQ QL45000 Series 25GbE Controller' drv=igb_uio
>>unused=
>> 0000:00:0a.0 'FastLinQ QL45000 Series 25GbE Controller' drv=igb_uio
>>unused=
>>
>> Network devices using kernel driver
>> ===================================
>> 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio
>>
>>
>>
>> #0 0x00000000004e5392 in vtpci_init (dev=0xb61970, hw=0x7fff76146600)
>> at /home2/hpatil/dpdk/drivers/net/virtio/virtio_pci.c:653
>> #1 0x00000000004effc4 in eth_virtio_dev_init (eth_dev=0xacb7a0
>> <rte_eth_devices>)
>> at /home2/hpatil/dpdk/drivers/net/virtio/virtio_ethdev.c:1060
>> #2 0x00000000004b730f in rte_eth_dev_init ()
>> #3 0x00000000004cb940 in pci_probe_all_drivers ()
>> #4 0x00000000004cbe88 in rte_eal_pci_probe ()
>> #5 0x00000000004c0336 in rte_eal_init ()
>> #6 0x00000000004404e2 in main ()
>> (gdb) p dev->devargs
>> $1 = (struct rte_devargs *) 0x0
>>
>>
>> Looks like its a known issue based on a old thread:
>> http://dpdk.org/dev/patchwork/patch/12462/
>>
>> Do we know a fix now?
>>
>> Thanks,
>> harish
>>
>>
>>
>>
>




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