Date: Sun, 25 Aug 2002 19:18:08 +0200 (CEST) From: Aurelien Nephtali <aurelien.nephtali@wanadoo.fr> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/42005: dhclient running + non-existent interface = CPU 100% Message-ID: <200208251718.g7PHI8S2003663@nebula.wanadoo.fr>
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>Number: 42005 >Category: bin >Synopsis: dhclient running + non-existent interface = CPU 100% >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Aug 25 10:30:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Aurelien Nephtali <aurelien.nephtali@wanadoo.fr> >Release: FreeBSD 4.6-STABLE i386 >Organization: none >Environment: System: FreeBSD nebula.wanadoo.fr 4.6-STABLE FreeBSD 4.6-STABLE #144: Sun Aug 25 10:38:56 CEST 2002 dak@nebula.wanadoo.fr:/usr/src/sys/compile/NEBULA i386 >Description: When a net interface disappears and if a 'dhclient' is attached to this interface, the CPU rise to 100% and the log message 'receive_packet on X: Device not configured' goes to /var/log/messages. This is a know problem (someone already complains on -stable i think) but apparently it wasn't fixed (yet). This problem is only on laptops with PCMCIA NIC. >How-To-Repeat: dhclient <interface> and remove the NIC. >Fix: Apply this patch from /usr/src. I choose to exit the soft since it's not usefull to have it running if no interface is present and moreover a new dhclient X is needed if the NIC is re-plugged. --- discover.c.patch begins here --- --- contrib/isc-dhcp/common/discover.c Thu Apr 11 12:16:46 2002 +++ contrib/isc-dhcp/common/discover.c Sat Aug 24 22:40:13 2002 @@ -756,7 +756,8 @@ if ((result = receive_packet (ip, u.packbuf, sizeof u, &from, &hfrom)) < 0) { log_error ("receive_packet failed on %s: %m", ip -> name); - return ISC_R_UNEXPECTED; + exit(ISC_R_UNEXPECTED); + /*return ISC_R_UNEXPECTED;*/ } if (result == 0) return ISC_R_UNEXPECTED; --- discover.c.patch ends here --- >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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