dhcpcd-discuss

Dump sent in PM.

Le mar. 5 juin 2018 à 00:17, Roy Marples <roy@xxxxxxxxxxxx> a écrit :

> Hi
>
> On 04/06/2018 22:05, LE GARREC Vincent wrote:
> > I found in my dump folder a dump of dhcpcd (7.0.4). I have no idea why
> > or what action made dhcpcd crash.
> >
> > I'm using Internet from USB shared by my Android phone.
> >
> > The backtrace is:
> >
> > #0  0x0000555ca80563ce in if_address (cmd=21 '\025',
> > addr=0x555ca82cef80) at if-linux.c:1459
>
> This is nlm.ifa.ifa_index = addr->iface->index ... which means that the
> address lost or has an invalid interface pointer.
>
> > #1  0x0000555ca8062905 in ipv4_deladdr (addr=0x555ca82cef80, keeparp=1)
> > at ipv4.c:472
> > #2  0x0000555ca8066175 in ipv4ll_freedrop (ifp=0x555ca82b5160, drop=1)
> > at ipv4ll.c:448
> > #3  0x0000555ca803abec in dhcpcd_drop (ifp=0x555ca82b5160, stop=0) at
> > dhcpcd.c:369
> > #4  0x0000555ca803b9db in dhcpcd_handlecarrier (ctx=0x7ffc1ffba240,
> > carrier=-1, flags=4098, ifname=0x7ffc1ffb9fe0 "enp0s26u1u2") at
> dhcpcd.c:728
> > #5  0x0000555ca8054b36 in link_netlink (ctx=0x7ffc1ffba240,
> > ifp=0x555ca82b5160, nlm=0x555ca82b1740) at if-linux.c:798
> > #6  0x0000555ca8053d3c in get_netlink (ctx=0x7ffc1ffba240,
> > iov=0x7ffc1ffba338, ifp=0x0, fd=7, flags=64, callback=0x555ca805478f
> > <link_netlink>)
> >      at if-linux.c:402
> > #7  0x0000555ca8054b92 in if_handlelink (ctx=0x7ffc1ffba240) at
> > if-linux.c:808
> > #8  0x0000555ca803c7b7 in dhcpcd_handlelink (arg=0x7ffc1ffba240) at
> > dhcpcd.c:1039
> > #9  0x0000555ca8040eea in eloop_start (eloop=0x555ca82a4dc0,
> > signals=0x7ffc1ffba348) at eloop.c:978
> > #10 0x0000555ca803f20e in main (argc=2, argv=0x7ffc1ffba708) at
> > dhcpcd.c:1998
> >
> > What I found is :
> >    - in frame 0, "addr->iface" is a "random" number : 0x735f7265676e6966.
> >    - in frame 4, "addr->iface" is "((struct ipv4ll_state
> > *)(ifp)->if_data[2])->addr->iface"
> >    - "ifname" is "enp0s26u1u2" and "ifp->options->options" =
> > 0x44F8029841C5C09
>
> addr->iface in frame 0 should match ifp in frame 2.
>
> >
> > dhcpcd --version
> > dhcpcd 7.0.4
> > Copyright (c) 2006-2018 Roy Marples
> > Compiled in features: INET ARP ARPing IPv4LL INET6 DHCPv6 AUTH
> >
> > cat /etc/dhcpcd.conf
> > hostname
> > duid
> > persistent
> > option rapid_commit
> > option domain_name_servers, domain_name, domain_search, host_name
> > option classless_static_routes
> > option interface_mtu
> > require dhcp_server_identifier
> > slaac private
> >
> > I can say that my connection with the device is not stable because of
> > networkmanager. For further information, see:
> https://bugs.gentoo.org/622082
> >
> > If you need for information, I still have the dump.
>
> The dump AND the dhcpcd binary would be nice to have please.
>
> Roy
>
>