bugGNU nano - Bugs: bug #41678, pressing backspace sometimes...


bug #41678: pressing backspace sometimes causes nano to mess up

Submitted by:  Jerald Johnson <cpjerry>
Submitted on:  Mon 24 Feb 2014 01:13:44 AM UTC  
Severity:  3 - Normal Status:  Need Info
Assigned to:  None Open/Closed:  Closed

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Sat 09 Jan 2016 04:49:44 PM UTC, comment #5:

Closing, as there is no news and no reproduction recipe.

Benno Schulenberg <bens>
Project Administrator
Fri 17 Apr 2015 08:11:46 PM UTC, comment #4:

Any news on this, Jerald?

The character " shouldn't be in any way special. Is your keyboard maybe configured to have dead keys, like a dead double quote?

Is your strace about a case where nano actually messed up?

When I compare your strace with one of mine, I notice the SA_RESTORER flag in for example "rt_sigaction(SIGTSTP, {SIG_IGN, [], SA_RESTORER, 0x7fa25c6fd9a0}, NULL, 8) = 0". Is that normal on your architecture? Which architecture is it?

Benno Schulenberg <bens>
Project Administrator
Wed 26 Feb 2014 08:58:26 AM UTC, comment #3:

If you can, please build from SVN. By default it will install to /usr/local, and you can make uninstall afterwards. And you don't even need to install, you can just run src/nano from the source tree, maybe make a temporarry alias.

Benno Schulenberg <bens>
Project Administrator
Tue 25 Feb 2014 01:04:34 PM UTC, comment #2:

I have not found a way to reliably reproduce this sadly.

I notice it more when editing a "complex" file like httpd.conf

I can try the version, however this is the version centos 6.5 is sending out and I don't like modifying my repos from the base on my servers.

You can set this "needs info" or the like while I find steps to reproduce, and test on the latest version.

Jerald Johnson <cpjerry>
Mon 24 Feb 2014 10:15:30 AM UTC, comment #1:

What do you mean with mess up? Does the display get garbled? Does a ^L not fix that? Or does the file itself get damaged? Do you maybe have a small example plus a sequence of keystrokes that reliably reproduces the effect?

Your version is rather old. Can you try with 2.2.6 or SVN to see whether it is maybe already fixed?

Benno Schulenberg <bens>
Project Administrator
Mon 24 Feb 2014 01:13:44 AM UTC, original submission:

Using nano and pressing backspace can cause nano to mess up.

I've included an strace, however I was my strace foo is limited so I couldn't get much from it.

It appears to only happen after a special character such as "

[~/www]# nano -V
GNU nano version 2.0.9 (compiled 07:18:28, Nov 12 2010)
(C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
Email: -email is unavailable- Web: http://www.nano-editor.org/
Compiled options: --enable-color --enable-extra --enable-multibuffer --enable-nanorc --enable-utf8

stock from yum centos 6.5

Please let me know if you need anything else

Jerald Johnson <cpjerry>


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Attach Files:

Attached Files
file #30682:  nano.strace2.2876.txt added by cpjerry (67KiB - text/plain)


Depends on the following items: None found

Items that depend on this one: None found


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  • -email is unavailable- added by bens (Posted a comment)
  • -email is unavailable- added by cpjerry (Submitted the item)

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-01-09 bens Open/ClosedOpen => Closed
    2015-04-17 bens SummaryNano messes up after pressing backspace => pressing backspace sometimes causes nano to mess up
    2014-02-26 bens StatusNone => Need Info
    2014-02-24 cpjerry Attached File- => Added nano.strace2.2876.txt, #30682

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