Re: X crashes when closing one of two running X sessions
On Tue 24 Oct 2017 at 07:31:32 -0400, The Wanderer wrote:
> On 2017-10-24 at 01:40, Robert Arkiletian wrote:
>
> > On Mon, Oct 23, 2017 at 2:51 PM, The Wanderer <wanderer@fastmail.fm> wrote:
> >
> >> On 2017-10-23 at 16:21, Robert Arkiletian wrote:
> >>
> >>> Just tried this on a different box running Fedora 25 (64) and it
> >>> works perfectly, no problem. So I think this is a Debian bug.
> >>> Although on Fedora I'm not starting the first X session with startx,
> >>> I can start another X session on tty2 with startx and switch to tty3,
> >>> log in and log out without issue.
> >>
> >> Per the description in bug 791342 (linked to from 858073 as being the
> >> same issue), "[s]tarting the server on tty[2-6] does not generally
> >> appear to lead to the behaviour described above". So I don't think this
> >> is enough of a test to conclude that Fedora does not exhibit the same
> >> behaviour.
> >
> > My mistake. Confirmed the same behavior on the Debian Stretch box. If
> > I don't use tty1 everything is fine. I can use tty2 (running X) and
> > tty3 logging in and out switching back and forth, no issues. What an
> > odd bug. Well at least I have a workaround now. I will simply avoid
> > using tty1.
> >
> > Update: Looked further into the thread with Brian and August from 2015
> > and it seems like the clear_console command (in .bash_logout) is at
> > fault. So I commented out clear_console in .bash_logout and everything
> > works great. No issues even on tty1. clear_console man page says
> >
> > clear_console clears your console if this is possible. It looks in the
> > environment for the terminal type and then in the terminfo database to
> > figure out how to clear the screen. To clear the buffer, it then
> > changes the foreground virtual terminal to another terminal and then
> > back to the original terminal.
> >
> > The log files I posted earlier in this thread indicate the crash was
> > due to "Permission denied". It makes sense that the bug did not
> > manifest itself while logging in and out of the root account as
> > permission was not a factor in "changes the foreground virtual
> > terminal to another terminal and then back to the original
> > terminal". My guess is clear_console has tty1 hard coded in. I notice
> > Matthias K. is the maintainer of the bash package (which has
> > clear_console) for Debian. I wonder if he might consider poking
> > upstream devs of clear_console about this issue?
>
> That program is shipped as part of bash, so it looks as if this might
> actually be considered a bash bug. I'd see about reporting it there, yes
> - either in Debian or upstream.
https://bugs.freedesktop.org/show_bug.cgi?id=93164
Which could be added to the existing Debian report.
--
Brian.
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