Re: kern/57694 (rge(4) hang)

[Thomas Klausner <wiz%NetBSD.org@localhost>]

The following reply was made to PR kern/57694; it has been noted by GNATS.

From: Thomas Klausner <wiz%NetBSD.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: Michael van Elst <mlelstv%serpens.de@localhost>
Subject: Re: kern/57694 (rge(4) hang)
Date: Tue, 2 Jan 2024 17:08:45 +0100

 Today the machine's network hung again, after about 10 days of uptime.
 
 In syslog I saw:
 
 Jan  2 16:34:27 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:34:27 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:34:31 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:34:39 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:34:39 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:34:42 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:34:47 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:34:50 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:34:51 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:34:51 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:34:53 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:34:55 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:34:55 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:01 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:35:02 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:35:02 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:05 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:35:06 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:06 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:13 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:35:14 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:35:14 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:17 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:35:18 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:18 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:25 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:35:26 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:35:26 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:29 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:35:30 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:30 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:37 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:35:37 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:35:37 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:41 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:35:41 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:41 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:49 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:35:49 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:35:49 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:49 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:53 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:35:57 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:35:57 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:01 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:36:01 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:36:02 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:36:02 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:04 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:36:06 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:06 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:12 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:36:13 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:36:13 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:16 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:36:17 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:17 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:24 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:36:24 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:36:24 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:24 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:30 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:36:32 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:32 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:36 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:36:38 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:36:39 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:36:39 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:36:51 exadelic syslogd[2503]: last message repeated 3 times
 Jan  2 16:36:51 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:36:54 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:37:02 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:37:03 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:37:03 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:05 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:37:07 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:07 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:13 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:37:13 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:37:13 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:16 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:37:17 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:17 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:24 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:37:25 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:37:25 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:25 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:30 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:37:33 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:33 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:37 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:37:38 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:37:39 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:37:39 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:42 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:37:43 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:43 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:37:50 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:37:50 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:37:50 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:38:02 exadelic syslogd[2503]: last message repeated 3 times
 Jan  2 16:38:02 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:38:15 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:38:15 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:38:23 exadelic syslogd[2503]: last message repeated 2 times
 Jan  2 16:38:23 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:38:23 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:38:23 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:38:35 exadelic syslogd[2503]: last message repeated 3 times
 Jan  2 16:38:35 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:38:45 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:38:53 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:38:53 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:38:53 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:39:05 exadelic syslogd[2503]: last message repeated 3 times
 Jan  2 16:39:05 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:39:39 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:39:47 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:39:47 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:39:47 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:39:50 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:39:51 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:39:51 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:39:58 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:39:58 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:39:58 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:39:58 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:03 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:40:06 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:06 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:10 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:40:11 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:40:12 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:40:12 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:12 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:19 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is reachable again
 Jan  2 16:40:20 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:20 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 Jan  2 16:40:24 exadelic dhcpcd[1790]: rge0: no IPv6 Routers available
 Jan  2 16:40:27 exadelic dhcpcd[1790]: rge0: fe80::de15:c8ff:fe36:2e98 is unreachable
 Jan  2 16:40:28 exadelic dhcpcd[1790]: rge0: soliciting an IPv6 router
 Jan  2 16:40:28 exadelic dhcpcd[1790]: ps_root_recvmsg: No buffer space available
 
 This was during a high load situation (bulk build). The machine
 stopped being accessible from the network.
  Thomas