Date: Mon, 22 Mar 2004 07:53:28 -0800 (PST) From: Mike <mikef@zerompg.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/64572: kernel panic when running ifconfig in perl to create vlans Message-ID: <200403221553.i2MFrSgG071347@www.freebsd.org> Resent-Message-ID: <200403221600.i2MG0ZRZ039837@freefall.freebsd.org>
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>Number: 64572
>Category: i386
>Synopsis: kernel panic when running ifconfig in perl to create vlans
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Mar 22 08:00:35 PST 2004
>Closed-Date:
>Last-Modified:
>Originator: Mike
>Release: 5.2.1
>Organization:
None
>Environment:
FreeBSD hostname.blah.com 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #0: Mon Feb 23 20:45:55 GMT 2004 root@wv1u.btc.adaptec.com:/usr/obj/usr/src/sys/GENERIC i386
>Description:
When creating vlans manually i get no kernel panic:
Works-> ifconfig vlan30 create vlan 30 vlandev fxp2 mtu 1500 up
But when i use a perl script to pull values from an array and run it I get a kernel panic.
>How-To-Repeat:
Use this Perl script:
#!/usr/bin/perl
@vlans=(
"30,fxp2",
"31,fxp2",
"32,fxp2"
);
foreach (@vlans){
($vnum,$int)=(split "," ,$_)[0,1];
print("Bringing up VLAN $vnum on $int\n");
system("ifconfig vlan$vnum create vlan $vnum vlandev $int mtu 1500 up");
}
>Fix:
It looks like the problem is just bringing the interface up in perl
if I use: system("ifconfig vlan$vnum create vlan $vnum vlandev $int mtu 1500") it works but "ifconfig vlan$vnum up" is what causes the panic
>Release-Note:
>Audit-Trail:
>Unformatted:
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