Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Unbelievable Lars, thanks for pointing me into correct way - without iptables it works fine. So now I just need to fiddle with offload timing and probably look at iptables. I removed the HW TOE key, but seems like I also have to run ethtool -K ... at the right time. Merry Xmas and HNY everyone! > > Bridge firewalling registered > > virbr0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature. > > xenbr0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature. > > messages about udp fragmentation offloading enabled while > hardware checksum offloading not available. which is an invalid > configuration, but should otherwise not be something to worry about. > > Call Trace: > > <IRQ> [<ffffffff8023d16d>] skb_checksum+0x123/0x271 > > [<ffffffff8040a3d9>] skb_checksum_help+0x71/0xd0 > > > something blows up in the calculating of ip/tcp checksums. > DRBD won't have anything to do with this. > > try to toggle on or off all checksum offloading before adding the > interfaces into the xen bridge, maybe that helps? (ethtool -K ...) > > > [<ffffffff8831233e>] :iptable_nat:ip_nat_fn+0x56/0x1c3 > > does it work without iptables? > > and a completely blind guess: you did not "overoptimize" the kernel, > i.e. use compiler optimization options for features your cpu does not > have, or does not have in the XEN world? > > does your cpu run too hot? > > -- > : Lars Ellenberg > : LINBIT | Your Way to High Availability > : DRBD/HA support and consulting http://www.linbit.com > > DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. > __ > please don't Cc me, but send to list -- I'm subscribed