Re: kern/52876: The vlan(4) over wm(4) behaves something strange

[clare%csel.org@localhost]

The following reply was made to PR kern/52876; it has been noted by GNATS.

From: clare%csel.org@localhost
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/52876: The vlan(4) over wm(4) behaves something strange
Date: Tue, 2 Jan 2018 09:24:19 +0900

 > How to repeat:
 > * setup Intel i82583V.
 > * setup wm(4) driver with all hardware offload flags.
 > * setup vlan(4) driver attached to the wm(4) and
 >   enable hardware offload flags including TSO.
 > * connect to sshd via vlan(4) and apply large traffic
 >   (doing cat /var/log/messages is sufficient).
 
 On the FreeBSD-11.1, the problem does not reprodued.
 
 $ ifconfig em5
 em5: flags=8c02<BROADCAST,OACTIVE,SIMPLEX,MULTICAST> metric 0 mtu 1500
 	options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,
 			TSO4,WOL_MAGIC,VLAN_HWTSO>
         ether 0c:e8:6c:**:**:**
         hwaddr 0c:e8:6c:**:**:**
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
         media: Ethernet autoselect (1000baseT <full-duplex>)
         status: active
 
 $ ifconfig em5.10
 em5.10: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=103<RXCSUM,TXCSUM,TSO4>
         ether 0c:e8:6c:**:**:**
         inet 192.168.**.** netmask 0xffffff00 broadcast 192.168.**.255
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
         media: Ethernet autoselect (1000baseT <full-duplex>)
         status: active
         vlan: 10 vlanpcp: 0 parent interface: em5
         groups: vlan
 
 
 -- 
 Shinichi Doyashiki <clare%csel.org@localhost>