Mail Archives: cygwin-developers/2001/03/18/12:47:06
On Sun, Mar 18, 2001 at 08:36:34PM +0300, Egor Duda wrote:
>Hi!
>
>Sunday, 18 March, 2001 Christopher Faylor cgf AT redhat DOT com wrote:
>
>CF> On Sun, Mar 18, 2001 at 06:09:06PM +0300, Egor Duda wrote:
>>>Sunday, 18 March, 2001 Christopher Faylor cgf AT redhat DOT com wrote:
>>>
>>>CF> On Wed, Mar 14, 2001 at 05:55:37PM -0500, Earnie Boyd wrote:
>>>>>This problem doesn't exist in the 2001-Mar-12 snapshot. However, I do
>>>>>have an occasional lockup on exit. The startup of the command window is
>>>>>much faster, I had more that fifty windows open in less than 30 seconds
>>>>>just by clicking on the
>>>>>Office shortcut icon.
>>>
>>>CF> The only lockup that I saw was when I tried to close the window using
>>>CF> the X in the upper right corner. When this happens, cygwin seems to
>>>CF> be stuck in a "wait for input from fd 0" loop.
>>>
>>>i see it too. when i start bash via rxvt and then type 'ps -l'
>>>bash it prints that rxvt and bash have different pgid's. so when rxvt
>>>receives WM_CLOSE message and tries to exit, it doesn't send SIGHUP to
>>>bash. so bash doesn't see that signal_arrived, and continue to wait
>>>for input.
>
>CF> Well, bash and ps should have different process groups.
>
>yes. they should. but i wonder whether rxvt and bash should have equal
>process groups or not?
When I try this on linux with xterm, xterm and bash don't have the same
process groups. I think this makes sense since they are each associated
with a different tty.
>CF> I'm surprised that rxvt doesn't send something to its running
>CF> processes when it gets a SIGHUP.
>
>CF> Is rxvt ignoring the SIGHUP? Does anyone know? I would think that it
>CF> would do *something* on receiving this.
>
>no, it doesn't ignore SIGHUP. what it doesn't do is that it doesn't
>propagate SIGHUP to it's children. either when closed via 'X' button
>or via 'kill -HUP <rxvt_pid>'
So, rxvt tries to exit but hangs waiting for bash to go away -- which
it never does? I would have thought that the closing of the parent
pty would cause bash to disappear.
cgf
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