Konsole showstopper?

Waldo Bastian bastian at kde.org
Wed Jan 14 13:22:03 GMT 2004

Hash: SHA1

On Wed January 14 2004 13:56, Lubos Lunak wrote:
> On Wednesday 14 of January 2004 10:33, Waldo Bastian wrote:
> > On Wed January 14 2004 05:07, Rob Kaper wrote:
> > > I just froze 3 Konsoles by trying to insert a backtrace with RMB ->
> > > Paste. Can anyone reproduce or verify this was fixed recently?
> >
> > Yes, I can confirm. Seems to be QClipBoard related. Attaching strace to
> > the process gets it to live again.
>  It seems to be KProcess related, if you attach gdb, you'll end up in
> blocking write() in KProcess::slotSendData(). Strace resumes it because the
> write() will be interrupted by a signal. It looks like KProcess feeds to
> much data to the shell, who then feeds data back to KProcess, causing a
> deadlock (KProcess trying to send data to shell, shell trying to send data
> to KProcess, both OS buffers already full).
>  I tried limiting the data size for write(), but that doesn't really help.
> I guess KProcess will need to go non-blocking on the sockets. Any
> volunteers?

Must have misinterpreted the file-descriptor then, I thought it blocked on a 
write to the X-server, will look into it then.

- -- 
bastian at kde.org -=|[ KDE: K Desktop for the Enterprise ]|=- bastian at suse.com
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