Date: Mon, 24 Sep 2007 23:40:49 GMT From: Chris Chen <muffaleta@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: amd64/116620: Ifconfig spins when creating carp(4) device on amd64/SMP Message-ID: <200709242340.l8ONenef067375@www.freebsd.org> Resent-Message-ID: <200709242350.l8ONo1JG013628@freefall.freebsd.org>
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>Number: 116620 >Category: amd64 >Synopsis: Ifconfig spins when creating carp(4) device on amd64/SMP >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-amd64 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Sep 24 23:50:01 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Chris Chen >Release: 6.2 RELEASE with Patch from PR kern/92776 >Organization: >Environment: FreeBSD ear.bennett.laika.com 6.2-RELEASE FreeBSD 6.2-RELEASE #1: Mon Sep 24 16:20:21 PDT 2007 root@ear.bennett.laika.com:/usr/src/sys/amd64/compile/DELL_PE860_AMD64 amd64 >Description: After startup, run ifconfig carp0 create. The process will spin. It is impossible to kill the spinning ifconfig process. The rest of the system remains operational, however, so you can reboot it. Here are the last lines of a ktrace of ifconfig carp0 create: 944 ifconfig CALL modstat(0x10a,0x7fffffffe280) 944 ifconfig RET modstat 0 944 ifconfig CALL modfnext(0x10a) 944 ifconfig RET modfnext 267/0x10b 944 ifconfig CALL modstat(0x10b,0x7fffffffe280) 944 ifconfig RET modstat 0 944 ifconfig CALL socket(0x2,0x2,0) 944 ifconfig RET socket 3 944 ifconfig CALL ioctl(0x3,SIOCIFCREATE,0x514ce0) After this point, the process take up 100% cpu, and just spins. >How-To-Repeat: Run ifconfig carp0 create. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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