On Wed, Sep 14, 2016 at 09:29:18AM +1000, Vincent McIntyre wrote: > > Also you might want to use the console (alt+f2) to run wget by hand and > > see if the issue happen with all hosts or only some of them. > > I tried to wget pages from a few web sites from the alt+f2 console. > It segfaulted every time when I used a DNS name in the URL, > but worked if I used an IP address in the URL. > ping does the same thing; segfaults only when using domain names. > > If I put an entry in /etc/hosts and try to access that hostname, > wget and ping also segfault, until I add this line to nsswitch.conf: > > hosts: files dns > > Then they both work for that hostname. > The only other nsswitch.conf lines are for passwd, group & shadow. >
I was able to netcat busybox & the coredump to a wheezy machine and got this backtrace, which does not look like it is much help... % gdb ./ping ./ping.core GNU gdb (GDB) 7.4.1-debian ... warning: Can't read pathname for load map: Input/output error. warning: Could not load shared library symbols for 4 libraries, e.g. /lib/libc.so.6. Use the "info sharedlibrary" command to see the complete listing. Do you need "set solib-search-path" or "set sysroot"? Core was generated by `ping ftp.au.debian.org'. Program terminated with signal 11, Segmentation fault. #0 0x00007f826609d0ca in ?? () (gdb) bt full #0 0x00007f826609d0ca in ?? () No symbol table info available. #1 0x0000000000000000 in ?? () No symbol table info available. (gdb) q Vince --
