Messages in this thread | | | Subject | Re: Pty is losing bytes | From | Andreas Schwab <> | Date | Tue, 15 Feb 2005 21:30:06 +0100 |
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Linus Torvalds <torvalds@osdl.org> writes:
> I think it may be a n_tty line discipline bug, brought on by the fact that > the PTY buffering is now 4kB rather than 2kB. 4kB is also the > N_TTY_BUF_SIZE, and if n_tty has some off-by-one error, that would explain > it.
I've also seen more than one byte missing. For example when sending a big chunk of bytes down the pty via an Emacs *shell* buffer up to 16 bytes are missing somewhere in the middle.
> Does the problem go away if you change the default value of "chunk" (in > drivers/char/tty_io.c:do_tty_write) from 4096 to 2048?
Yes, that helps.
Andreas.
-- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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