pinephone: mtr segfaults when given an interface

mtr 8.8.8.8 works as expected, but mtr -I wwan0 8.8.8.8 segfaults.

mtr -I wlan0 works but doesn't receive any responses (I don't think this is the same bug, I think something is going on with routes on the phone)

pine64-pinephone:~/src$ gdb mtr
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Reading symbols from mtr...
(gdb) r -I wwan0 8.8.8.8
Starting program: /usr/sbin/mtr -I wwan0 8.8.8.8
[Detaching after fork from child process 6489]

Program received signal SIGSEGV, Segmentation fault.
0x0000aaaaaaaaf290 in net_find_interface_address_from_name (addr=0xaaaaaaac98c8 <sourcesockaddr_struct>,
    interface_name=0xfffffffffe47 "wwan0", address_family=2) at ../ui/net.c:650
650     ../ui/net.c: No such file or directory.
(gdb) bt
#0  0x0000aaaaaaaaf290 in net_find_interface_address_from_name (addr=0xaaaaaaac98c8 <sourcesockaddr_struct>,
    interface_name=0xfffffffffe47 "wwan0", address_family=2) at ../ui/net.c:650
#1  net_open (ctl=<optimized out>, hostent=<optimized out>) at ../ui/net.c:784
#2  0x0000aaaaaaaad540 in main (argc=<optimized out>, argv=<optimized out>) at ../ui/mtr.c:844
(gdb)

changed the description

By Adam Baxter on 2020-06-01T09:38:25

added category::device type::bug labels

changed the description

By Adam Baxter on 2020-06-01T09:43:43

On my Alpine laptop, mtr works as intended:

$ mtr -I eth0 8.8.8.8
mtr: interface missing IPv4 address # expected: no RJ45 cable plugged
[1] $ mtr -I wlan0 8.8.8.8
# works

no segfault for me.

One of the first possible cause that comes to mind is that there could be something missing in sysfs or an otherwise kernel-specific cause. That's why I added the device tag.

By Antoine Fontaine on 2020-06-02T09:14:47

changed the description

By clayton craft on 2021-02-19T09:16:01

added device-pine64-pinephone label

No update for a year so closing. If it's still relevant, please re-open it.

By Bart Ribbers on 2022-01-28T14:58:20

closed