Hello Pragya, Do you see any errors in `show log`? Do you see this fd 59 in `show unix files`?
On Fri, 24 Feb 2023 at 07:59, Pragya Nand Bhagat < pragya.nand.bhaga...@gmail.com> wrote: > Hi All, > > I'm using an older version of vpp 20.09 . > When I create a bvi interface using bvi create cli. > A corresponding tap is created with same name as follows: > > > > *itf-pair: [19] bvi100 tap-39-bvi100 bvi100 960 type tap * > > But one FD of the tap interface is *missing* when I check in linux. > > vpp# *show tap tap-39-bvi100* > > Interface: tap-39-bvi100 (ifindex 40) > > name "bvi100" > > host-ns "(nil)" > > host-mac-addr: e4:43:4b:21:f3:86 > > *vhost-fds 213 214* > > * tap-fds 59* > > gso-enabled 0 > > csum-enabled 0 > > > In above output there should be 3 FDs associated with the tap but* one > of them is missing.* > > [root@0-9 /]# ls -l /proc/37/fd | grep 59 > > lrwx------ 1 root root 64 Feb 23 12:03 159 -> /dev/vhost-net > > *FD 59 is missing*, as a result of which packet transfer between linux > and mdp is not happening. > > Is there some checkin/patch to fix this issue? > Any help in debugging this issue will be helpful . > > Thanks > Pragya Nand > > > > -- Best regards Stanislav Zaikin
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