linux-kernel - Re: [SOLVED] Serial buffer corruption [was Re: FTDI usb-serial possible bug]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 05 May 2007 11:56:26 -0500
From:	Paul Fulghum <paulkf@...rogate.com>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	Antonino Ingargiola <tritemio@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-usb-users@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [SOLVED] Serial buffer corruption [was Re: FTDI usb-serial
	possible bug]

On Sat, 2007-05-05 at 18:46 +0200, Oliver Neukum wrote:
> Am Samstag, 5. Mai 2007 18:08 schrieb Paul Fulghum:
> > I would argue that cdc-acm should do the same as the serial driver.
> 
> Has this been tested?
> If so we could reduce the complexity of the throtteling logic in the usb
> drivers.

Antonino is doing so now.

I think Alan nailed it: with the old tty buffering the extra
logic was required to avoid data loss. The new tty buffering
handles large blocks of data with no problem.

Removing this part of the throttle logic makes
the input flushing mechanism complete.

--
Paul


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/