On Thu, Oct 27, 2005 at 03:52:35PM +0200, Stefan Schmidt wrote: > > Running on Debian GNU/Linux unstable with ~40k zones BIND 9.3.2beta1 stopped > > answering to udp queries (blocking) and logged the following error message: > > Oct 26 16:17:23 ns1 named[2197]: errno2result.c:109: unexpected error: > > Oct 26 16:17:23 ns1 named[2197]: unable to convert errno to isc_result: 14: > > Bad address > > Oct 26 16:17:23 ns1 named[2197]: UDP client handler shutting down due to fatal > > receive error: unexpected error > > I'm suspecting a kernel-bug as i had the problem with 9.3.2b2, 9.3.2b1 and > 9.3.1 (debian package) and linux kernel 2.6.14-rc5 and 2.6.14-rc4-mm1. > I am currently trying with kernel 2.6.13.4 and BIND 9.3.2b2 ran stable for the > last 4 hours. > I'll keep you informed. It was a kernel-bug, it is existent in 2.6.14 and this is the patch: diff --git a/net/core/datagram.c b/net/core/datagram.c --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -213,6 +213,10 @@ int skb_copy_datagram_iovec(const struct { int i, err, fraglen, end = 0; struct sk_buff *next = skb_shinfo(skb)->frag_list; + + if (!len) + return 0; + next_skb: fraglen = skb_headlen(skb); i = -1; Stefan -- panic ("No CPUs found. System halted.\n"); 2.4.3 linux/arch/parisc/kernel/setup.c