when the hot plug out of the device, the uio resource have been invalid, so to avoid the system hung, no need to do the invalid operation in igb_uio pci release function.
Signed-off-by: Jeff Guo <jia....@intel.com> --- lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c index a3a98c1..d0e07b4 100644 --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c @@ -354,6 +354,12 @@ igbuio_pci_release(struct uio_info *info, struct inode *inode) struct rte_uio_pci_dev *udev = info->priv; struct pci_dev *dev = udev->pdev; + /* check if device have been remove before release */ + if ((&dev->dev.kobj)->state_remove_uevent_sent == 1) { + pr_info("The device have been removed\n"); + return -1; + } + /* disable interrupts */ igbuio_pci_disable_interrupts(udev); -- 2.7.4