Re: Terminal signal handling

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On 24 November 2013 19:32, Peter Oliver
<lists.fedoraproject.org@xxxxxxxxxxxx> wrote:
> I've started having a couple of odd issues with terminals in the last week
> or so on my Fedora 19 desktop machine and I think they're probably related.
> My laptop, also running Fedora 19, appears to be unaffected.
>
>
> Sometimes, terminals are unresponsive to ^Z, and I'm unable to suspend a
> process by using 'kill -TSTP' on that process.  However, 'kill -STOP' works.
> Running 'stty -a' shows 'susp = ^Z' as expected.
>
> This affects both xterm and gnome-terminal.  It affects all children of an
> affected process.  However, sometimes if I start a new terminal from Gnome
> Shell it will not be affected.
>
> A workaround is to run "exec ksh -c 'exec $SHELL'" from an affected
> terminal.  It appears that ksh does some initialisation that bash, dash and
> tcsh do not.
>
>
> My second problem is that alpine is sometimes unresponsive to changes in
> terminal size.  I suspect that SIGWINCH is not being handled correctly.
>
>
> See
> http://superuser.com/questions/667380/sigint-and-sigtstp-ignored-by-most-common-applications/680020#680020
> for an example of someone with similar but slightly different symptoms (he
> has problems with SIGINT, but my SIGINT works fine).
>
>
> Using 'pstree -ps $$' and then working my way up the tree with 'grep SigBlk
> /proc/$pid/status' shows 'SigBlk: 016717d03fdb4a00' for gnome-session but
> 'SigBlk: 0000000000000000' for its parents.  This makes me suspect that the
> problem originates in gnome-session.
>
>
> Any ideas?
>

If you're using the nvidia proprietary driver 331.20 then it's probably:
https://bugzilla.redhat.com/show_bug.cgi?id=1028272

> --
> Peter Oliver
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-- 
Ahmad Samir
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