Hi, > We've seen these on our Goettingen Freifunk gateways, too. There, > too, > batadv_frag_purge_orig was the smoking gun. However, I didn't report > it, > because: > > - first and foremost, we were using the outdated legacy 2013.4 > version
We had also some other issues with older versions, so we upgraded to 2015.1 hoping the gateways will run stable. > - it was most probably an issue with RCU lists > - and either disabling SMP or using a much more current kernel fixed > it. Did you build own kernels with disabled smp? > So I blamed a buggy RCU implementation in older kernels, plus maybe > some > ill behaviour in the old batman-adv codebase. The crashing kernel was > the old debian-wheezy one - pretty old, I'd say. > We are running 3.16 and partially upgraded to 4.1 for testing purposes. But we have some "general protection fault: 0000 [#1] SMP" unrelated to batman also on the gateways - with different hardware. For the record, a KVM gateway (the other ones are dedicated servers without virtualization) does not crash. Regards Bjoern -- xmpp [email protected]
