On Thu, 9 Jan 2020 11:14:25 +0800 Fang TongHao <fangtong...@sangfor.com.cn> wrote:
> Hi all，I am from Sangfor Tech.I found a bug when using DPDK in > multiprocess scenario.The secondary process enters > "rte_eth_dev_pci_copy_info" function when initializing.Then it > sets the value of struct "rte_eth_dev_data.dev_flags" to zero, > but this struct is shared by primary process and secondary > process, and the value change is unexpected by primary process. > This may cause very serious damage.I think > the secondary process should not enter "rte_eth_dev_pci_copy_info" > function or changes the value of struct "rte_eth_dev_data.dev_flags" > in shared memory. > I fixed this bug by adding an if-statement to forbid the secondary > process changing the above-mentioned value. > Thansk, All. > > Signed-off-by: Fang TongHao <fangtong...@sangfor.com.cn> Most of the drivers avoid calling rte_eth_dev_pci_copy_info in the secondary process, which one are you using?
