> On 14 Jun 2023, at 10:53, Gary Jennejohn <ga...@gmx.de> wrote:
>
> On Wed, 14 Jun 2023 09:01:35 +0000
> Gary Jennejohn <ga...@gmx.de <mailto:ga...@gmx.de>> wrote:
>
>> On Wed, 14 Jun 2023 09:09:04 +0100
>> Alexander Chernikov <melif...@freebsd.org> wrote:
>>
>>>> On 14 Jun 2023, at 08:59, Gary Jennejohn <ga...@gmx.de> wrote:
>>> Hi Gary,
>>>>
>>>> So, now I have a new problem with current.
>>>>
>>>> I just now updated my current sources and ran buildworld and buildkernel,
>>>> since Gleb fixed the WITHOUT_PF problem.
>>>>
>>>> After installing the new world and kernel I see that ifconfig is dumping
>>>> a core, apparently when it tries to show lo0, since re0 is correctly
>>>> shown:
>>>>
>>>> ifconfig
>>>> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 4088
>>>> options=82098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
>>>> ether redacted
>>>> inet 192.168.178.XXX netmask 0xffffff00 broadcast 192.168.178.255
>>>> Segmentation fault (core dumped)
>>> Could you please try to narrow down the crashing command? e.g.
>>> Ifconfig lo0
>>> Ifconfig lo0 net
>>> Ifconfig lo0 inet6
>>> Could you try to rebuild ifconfig w/o netlink (e.g. set WITHOUT_NETLINK=yes
>>> in the make.conf & make -C sbin/ifconfig clean all install) and see if the
>>> new binary works?
>>>
>>
>> I already have WITHOUT_NETLINK=yes in my /etc/src.conf.
>>
>> I didn't install ifconfig. I simply started it from the build directory.
>>
>> ifconfig lo0 shows the settings for lo0 and then dumps core.
>>
>
> After your most recent changes "ifconfig re0" and "ifconfg lo0" don't
> result in any errors. But "ifconfig" alone still results in a core
> dump, which per gdb is happening in the strlcpy() call at in_status_tunnel()
> in af_inet.c.
Indeed.
diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c
index d30d3e1909ae..6a80ad5763b2 100644
--- a/sbin/ifconfig/ifconfig.c
+++ b/sbin/ifconfig/ifconfig.c
@@ -822,6 +822,7 @@ list_interfaces_ioctl(if_ctx *ctx)
continue;
if (!group_member(ifa->ifa_name, args->matchgroup,
args->nogroup))
continue;
+ ctx->ifname = cp;
/*
* Are we just listing the interfaces?
*/
Does this one fix the crash?
>
> --
> Gary Jennejohn
