Re: ifconfig dumps core and gdb uses an undefined symbol

> On 14 Jun 2023, at 08:59, Gary Jennejohn <garyj@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?

> 
> Unfortunately, I see this error message when I try to look at the core
> file with gdb:
> 
> gdb /sbin/ifconfig ifconfig.core
> ld-elf.so.1: Undefined symbol "rl_eof_found" referenced from COPY
> relocation in /usr/local/bin/gdb
Not a specialist here, but if you could build the binary with debug (make DEBUG_FLAGS=“-O0 -g3” sbin/ifconfig clean all install) & share the binary & core with me, I could take a look on what’s happening.
> 
> pkg claims that my packages are all up to date.
> 
> Not exactly a fatal error, but still rather surprising.
> 
> --
> Gary Jennejohn
>