Re: [Bug 199503] When configuring VLANs inside guests, VLAN traffic is dropped starting with 4.16-rc1

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Hi guys,

      I've hit an issue starting at this commit where I have 2 VMs on virbr0 that were communicating using VLANs 201@204 ... This was working with kernel 4.15-rc9 and stopped working at kernel 4.16-rc1.   I've bisected this issue until this patch here.   I just tried reverting it on kernel 4.17-rc2 and I'll try reproducing this issue back again.  I'll keep you posted.

Thank you very much,

David Hill


On 2018-04-26 10:30 PM, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
https://bugzilla.kernel.org/show_bug.cgi?id=199503

--- Comment #3 from David Hill (hilld@xxxxxxxxxxxxxxx) ---

aff3d70a07fffc0abb53663e4a4acb059d2f36af is the first bad commit
commit aff3d70a07fffc0abb53663e4a4acb059d2f36af
Author: Jason Wang <jasowang@xxxxxxxxxx>
Date:   Tue Jan 16 16:31:02 2018 +0800

     tun: allow to attach ebpf socket filter

     This patch allows userspace to attach eBPF filter to tun. This will
     allow to implement VM dataplane filtering in a more efficient way
     compared to cBPF filter by allowing either qemu or libvirt to
     attach eBPF filter to tun.

     Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
     Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>

:040000 040000 409d4ec37e293589474693c2353fe4b991788f79
6838a2daf2dbfd81d6e5c5b438102b70482a0516 M      drivers
:040000 040000 50b2471f7aef1104feb725c431951df4b5719e75
8ad617de12c30e05ec0c6060bb51810dd33af478 M      include





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