Description of problem: When upgrading from a 2.6.25 kernel to a 2.6.26 kernel krb5kdc stops binding to all interfaces. Version-Release number of selected component (if applicable): krb5-server-1.6.3-10.fc9.x86_64 How reproducible: Always. Steps to Reproduce: 1. service krb5kdc start Actual results: krb5kdc only binds to 0.0.0.0 and :: not any other interfaces. Expected results: krb5kdc binds to all interfaces. Additional info: /var/log/krb5kdc.log output under 2.6.25.14-108.fc9.x86_64: Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): setting up network... Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): setting up network... Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): skipping unrecognized local address family 17 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): skipping unrecognized local address family 17 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): skipping unrecognized local address family 17 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): skipping unrecognized local address family 17 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 9: udp 192.168.1.29.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 9: udp 192.168.1.29.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 10: udp 192.168.1.29.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 10: udp 192.168.1.29.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 11: udp 192.168.122.1.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 11: udp 192.168.122.1.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 12: udp 192.168.122.1.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 12: udp 192.168.122.1.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 13: udp fe80::213:72ff:fe23:9b28%eth0.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 13: udp fe80::213:72ff:fe23:9b28%eth0.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 14: udp fe80::213:72ff:fe23:9b28%eth0.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 14: udp fe80::213:72ff:fe23:9b28%eth0.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 15: udp fe80::200:ff:fe00:0%virbr0.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 15: udp fe80::200:ff:fe00:0%virbr0.750 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 16: udp fe80::200:ff:fe00:0%virbr0.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 16: udp fe80::200:ff:fe00:0%virbr0.88 krb5kdc: setsockopt(IPV6_V6ONLY,1) worked krb5kdc: setsockopt(IPV6_V6ONLY,1) worked Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 18: tcp 0.0.0.0.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 18: tcp 0.0.0.0.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 17: tcp ::.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): listening on fd 17: tcp ::.88 Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): set up 10 sockets Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3296](info): set up 10 sockets Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3297](info): commencing operation Feb 17 01:11:29 dijkstra.wildebeest.org krb5kdc[3297](info): commencing operation /var/log/krb5kdc.log output under 2.6.26.5-45.fc9.x86_64: Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25894](info): setting up network... Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25894](info): skipping unrecognized local address family 17 Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25894](info): skipping unrecognized local address family 17 krb5kdc: Address already in use - Cannot bind server socket to port 750 address 192.168.1.29 krb5kdc: setsockopt(IPV6_V6ONLY,1) worked Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25894](info): listening on fd 10: tcp 0.0.0.0.88 Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25894](info): listening on fd 9: tcp ::.88 Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25894](info): set up 2 sockets Oct 21 13:08:43 dijkstra.wildebeest.org krb5kdc[25895](info): commencing operation
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I can't reproduce this with a combination of kernel-2.6.26.5-45.fc9.x86_64 and krb5-server-1.6.3-10.fc9.x86_64, nor when I update krb5-server to 1.6.3-16.fc9 and/or the kernel to 2.6.27.25-78.2.56.fc9.