[Konsole-devel] [Bug 293534] New: flow control: possible to leave without Konsole noticing

[Martin Steigerwald]

https://bugs.kde.org/show_bug.cgi?id=293534

           Summary: flow control: possible to leave without Konsole
                    noticing
           Product: konsole
           Version: unspecified
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: konsole-devel at kde.org
        ReportedBy: ms at teamix.de


Created an attachment (id=68590)
 --> (http://bugs.kde.org/attachment.cgi?id=68590)
the screenshot shows how its possible to break stopped flow without konsole
noticing

Version:           unspecified
OS:                Linux

When I press Ctrl+s in Konsole while flow control is enabled in the profile
settings I get a nice warning that output in shell has been halted and I may
press Ctrl+q to continue. When I press Ctrl+q the warning disappears.

When I press Ctrl+c flow the shell also continues, but the warning stays. 

Reproducible: Always

Steps to Reproduce:
- make sure flow control is enabled in profile settings of Konsole (should be
standard)
- open a Konsole window
- press Strg+s
- press Ctrl+c

In Z-Shell it suffices to press Ctrl+c once. In Bash I seem to have to press it
twice.

Actual Results:  
I am able to write something into the shell again, while the warning is still
there (see attached screenshot).

Expected Results:  
The warning disappears *or* Ctrl+c won't continue. I like Ctrl-c to continue
tough for users of other terminal emulators without that nice warning message.

That Ctrl+c continues stopped flow could have been introduced by some recent
software - at least I didn't see this behavior until a recent linux training
where a student found it. I have:

ms at mango:~> apt-show-versions | egrep
"(konsole/|readline|coreutils/|bash/|zsh/)"
bash/wheezy uptodate 4.2-1
coreutils/wheezy uptodate 8.13-3
konsole/experimental uptodate 4:4.7.4-1
libreadline5/wheezy uptodate 5.2-11
libreadline6/wheezy uptodate 6.2-8
readline-common/wheezy uptodate 6.2-8
zsh/wheezy uptodate 4.3.15-1

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