From: Alan <alan@lxorguk.ukuu.org.uk>
To: "Aubrey Li" <aubreylee@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org
Subject: Re: [BUG]: 2.6.19.2: Weird serial core issue
Date: Thu, 1 Feb 2007 12:02:08 +0000 [thread overview]
Message-ID: <20070201120208.36ccb530@localhost.localdomain> (raw)
In-Reply-To: <6d6a94c50701311833m5952c6fdn8e1f0db28d674e79@mail.gmail.com>
> I implemented the serial driver by myself, :). See the attachment.
> I didn't save/restore terminal setting in the my_set_termios().
Driver looks fine.
> I trace this back till tty_tioctl(..., unsigned long arg), everytime I
> type "ENTER" key,
> the argument "arg" passed into tty_ioctl() is the address of a termios
> structure, which include wrong c_cflag. It seems once the flag is
> assigned by uart_set_options the first time, it's never changed. So
> even userspace application changed the flag, it will be set back soon.
> I'll dig into it. But I still think it's a bug.
Which application (see from current->pid) seems to be calling the
tty_ioctl with the "wrong flag" ?
prev parent reply other threads:[~2007-02-01 11:49 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-31 10:49 [BUG]: 2.6.19.2: Weird serial core issue Aubrey Li
2007-01-31 16:21 ` Alan
2007-02-01 2:33 ` Aubrey Li
2007-02-01 9:45 ` Russell King
2007-02-01 10:09 ` Aubrey Li
2007-02-01 11:16 ` Russell King
2007-02-01 17:54 ` Aubrey Li
2007-02-01 19:09 ` Russell King
[not found] ` <000201c745d9$4577fe20$2e01a8c0@acksys.local>
2007-02-01 10:38 ` Aubrey Li
2007-02-01 15:19 ` Paul Fulghum
2007-02-01 12:02 ` Alan [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070201120208.36ccb530@localhost.localdomain \
--to=alan@lxorguk.ukuu.org.uk \
--cc=aubreylee@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox