# [OmniOS-discuss] LX: real ksh93 broken

Nahum Shalman nshalman at omniti.com
Tue May 9 14:02:35 UTC 2017

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    As a data point, I tested this on a very recent SmartOS and was unable to
    reproduce:

    root at ksh-debian:~# set -o xtrace ; /native/usr/bin/uname -a; uname -a ; cat
    /etc/debian_version ; dpkg-query -l ksh | grep ksh ; /bin/ksh93
    + set -o xtrace
    + /native/usr/bin/uname -a
    SunOS ksh-debian 5.11 joyent_20170427T222500Z i86pc i386 i86pc
    + uname -a
    Linux ksh-debian 3.16.10 BrandZ virtual linux x86_64 GNU/Linux
    + cat /etc/debian_version
    8.8
    + dpkg-query -l ksh
    + grep ksh
    ii  ksh            93u+20120801-1 amd64        Real, AT&T version of the
    Korn shell
    + /bin/ksh93
    # ps | grep $$
    77074 pts/2    00:00:00 ksh93
    # exit
    root at ksh-debian:~#

    On Tue, May 9, 2017 at 5:52 AM, Ludovic Orban <lorban at bitronix.be> wrote:

    > Hi,
    >
    > I've installed the real ksh93 (this stuff: https://packages.debian.org/
    > jessie/ksh) on a r151020 LX zone running the latest Debian (
    > https://images.joyent.com/images/e74a9cd0-f2d0-11e6-8b69-b3acf2ef87f7)
    > and it behaves strangely.
    >
    > Here is what I get:
    >
    > root at debian-8:~# /bin/ksh93
    > # ls /
    >
    >
    > ^C^C
    > ^Z^Z^Z
    > ^\^\^\^\
    > Killed
    > root at debian-8:~#
    > root at debian-8:~#
    >
    > (note: the "Killed" line is due to a kill -9 from another terminal).
    >
    > Basically, any command I type just hangs there. Sometimes the shell reacts
    > to ^C and/or ^D allowing me to try a different command that also gonna
    > hang, and sometimes it doesn't and I have to kill the shell from another
    > terminal. In the latter case, ksh93 starts kind of a "fork bomb" where it
    > seems to fork itself in a loop.
    >
    > I can reproduce this problem from a zlogin term as well as from a direct
    > ssh session. I've also tried ksh93 on a CentOS zone to make sure the
    > problem wasn't caused by Debian's build and the exact same problem arises.
    >
    > Any idea what's going on?
    >
    > Thanks,
    > Ludovic
    >
    > _______________________________________________
    > OmniOS-discuss mailing list
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    >
    >
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