Re: PROBLEM: Data corruption when pasting large data to terminal

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > Sorry, I didn't emphasize the point that makes me suspect it's a kernel issue:
> > 
> > - strace reveals that the terminal emulator writes the correct data
> > into /dev/ptmx, and the kernel reports no short writes(!), all the
> > write(..., ..., 68) calls actually return 68 (the length of the
> > example file's lines incl. newline; I'm naively assuming I can trust
> > strace here.)
> > - strace reveals that the receiving application (bash) doesn't receive
> > all the data from /dev/pts/N.
> > - so: the data gets lost after writing to /dev/ptmx, but before
> > reading it out from /dev/pts/N.
> 
> Which it will, if the reader doesn't read fast enough, right?  Is the
> data somewhere guaranteed to never "overrun" the buffer?  If so, how do
> we handle not just running out of memory?

Start blocking the writer?
									Pavel
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