Hmm.. sounds interesting...
I see a Konsole process and a bash process. When I strace the Konsole process I get a series of things... I don't know what I'm doing or what they mean... 'ioctl (3, FIONREAD, [Y])' appears a lot with Y=0 or 32... anyway, it's responsive.
That's pretty normal behavior.. The 32 is telling you how long that line is, if you did 'strace -s 200 -p $pid', it would be a lot more noisy and not truncate so small.
OTOH, when I 'strace -p' the frozen bash process, I get:
Process XXXX attached - interrupt to quit ioctl(0, TCSETSW
The ioctl function manipulates the underlying device parameters of special files. (from man)
It looks like it is apparently waiting for something to happen. If your shell was at prompt, waiting for more input.. typically you would see that read:
read(0,
and nothing more..
The TCSETSW portion, is "Allow the output buffer to drain, and set the current serial port settings."
(at this point I try hitting return a few times, nothing) (I hit control-C) <unfinished ...> Process XXXX detached
Any idea what this means?
The detached message just means that you've successfully let go of the process with strace.
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I'm not really sure based on that, what the issue is. Perhaps someone else with more knowledge of the gui behaviors (I stick to console only really), and that knows the innards of ioctl() could shed some light on it.
-- netmask
