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[Hitechcomputergeek <Hitechcomputergeek@xxxxxxxxx>]

I'm getting this too. When I tried to nano my ~/bashrc file (just as me,
not as root), the first two times it segfaulted. The third (and any
later) times, now it displays "Couldn't determine hostname for lock
file: File name too long" for ANY file I try to open or create. Upgraded
from Ubuntu 15.04 to 15.10 two days ago. Attached is the crash log that
apport created when nano segmentation faulted the first two times.

** Attachment added: "crash log"
   https://bugs.launchpad.net/ubuntu/+source/nano/+bug/1509081/+attachment/4506693/+files/_bin_nano.1000.crash

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https://bugs.launchpad.net/bugs/1509081

Title:
  nano segfaults as root after upgrade to 15.10

Status in nano package in Ubuntu:
  Confirmed

Bug description:
  Description:	Ubuntu 15.10
  Release:	15.10

  nano:
    Installed: 2.4.2-1
    Candidate: 2.4.2-1
    Version table:
   *** 2.4.2-1 0
          500 http://mirror.bytemark.co.uk/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status

  
  After upgrading Ubuntu 15.04 to 15.10, when I run nano as root on a file it just segfaults. I'm not having this problem on other 15.04->15.10 upgrades

  strace is https://p.defau.lt/?q7xGwt3HoqB74xTawUUHDA
  catchsegv is https://p.defau.lt/?0SPQY_bDj6F6j1ZKeToQoA

  
  Under gdb with nano-dbgsym installed, it gives

  #0  main (argc=2, argv=0x7fffffffe688) at ../../src/nano.c:2768

  
  If I run it as sudo nano filename.txt, it gives an error as below rather than segfaulting

  [ Couldn't determine hostname for lock file: File name too long ]


  Both my user and root have the same locale settings. I've tried
  regenerating the locales

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