Hi, after upgrading one of my bind (cache resolver) machines to 6.4 (release) I'm getting these errors quite often:
Nov 16 15:55:14 server named[30616]: client: warning: client @0x6591da02440 xxx.xxx.xxx.xxx#39702 (a1928.d.akamai.net): error sending response: would block https://kb.isc.org/docs/aa-00717 it's either EWOULDBLOCK or EAGAIN errors. I've tried playing with -U and -n settings. Setting -n 1 (one cpu/core) solves the problem Ideally I would set it to -n 8 -U 8 any ideas? system is: isc-bind-9.11.4pl2 6.4 GENERIC.MP#364 amd64 hw.machine=amd64 hw.model=Intel(R) Xeon(R) CPU E5405 @ 2.00GHz hw.ncpu=8 hw.cpuspeed=1995 hw.vendor=Dell Inc. hw.product=PowerEdge 1950 hw.physmem=4273274880 hw.usermem=4273262592 hw.ncpufound=8 hw.smt=0 hw.ncpuonline=8 # netstat -m 57 mbufs in use: 42 mbufs allocated to data 11 mbufs allocated to packet headers 4 mbufs allocated to socket names and addresses 35/192 mbuf 2048 byte clusters in use (current/peak) 0/45 mbuf 2112 byte clusters in use (current/peak) 0/64 mbuf 4096 byte clusters in use (current/peak) 0/56 mbuf 8192 byte clusters in use (current/peak) 0/42 mbuf 9216 byte clusters in use (current/peak) 0/50 mbuf 12288 byte clusters in use (current/peak) 0/56 mbuf 16384 byte clusters in use (current/peak) 0/48 mbuf 65536 byte clusters in use (current/peak) 6016/6296/524288 Kbytes allocated to network (current/peak/max) 0 requests for memory denied 0 requests for memory delayed 0 calls to protocol drain routines # netstat -s udp: 2939445 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 2251 with no checksum 620 input packets software-checksummed 1995 output packets software-checksummed 1327 dropped due to no socket 0 broadcast/multicast datagrams dropped due to no socket 0 dropped due to missing IPsec protection 0 dropped due to full socket buffers 2938118 delivered 2964353 datagrams output 2133126 missed PCB cache thanks, G
