On Wed, 2017-01-04 at 14:49 +0000, Ton Wittenberg wrote: [...] > and on several machines debian 7 ipv6 stops working after a while so > i started to investigate the issue. > > > wc -l /proc/net/ipv6_route > ?25329 /proc/net/ipv6_route and its still growing every minute. > once i reboot the machine ipv6 works again for 1/2 days What kind of v6 traffic are these machines seeing? I assume they are endpoints, not routers? Are they mostly initiating or accepting connections over v6? How many v6 peers do they have? [...] > it looks like that on debian 7 its not releasing its memory > > > i have around 50 machines on debian 7 and they are all having this > issue. We discussed this on IRC, and I had an idea of what the fix might be, but on further reflection that didn't make sense. I seem to recall that there are several performance problems with IPv6 in Linux 3.2. It is unlikely to be possible to fix them all with backported fixes. Ben. -- Ben Hutchings The generation of random numbers is too important to be left to chance. - Robert Coveyou
Attachment:
signature.asc
Description: This is a digitally signed message part