linux-kernel - Re: WARNING: at drivers/tty/tty_buffer.c:476 flush_to

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Message-ID: <CA+icZUWDObK_HVuaBXSj-N4fF=J_qJK212ZdF2Vw1id4kK0uPw@mail.gmail.com>
Date:	Sun, 20 Jan 2013 01:14:02 +0100
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Dave Jones <davej@...hat.com>
Cc:	Jiri Slaby <jslaby@...e.cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ilya Zykov <ilya@...x.ru>, LKML <linux-kernel@...r.kernel.org>,
	linux-next <linux-next@...r.kernel.org>,
	linux-serial@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Jan Kara <jack@...e.cz>, Eric Sandeen <sandeen@...hat.com>,
	"Theodore Ts'o" <tytso@....edu>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: WARNING: at drivers/tty/tty_buffer.c:476 flush_to_ldisc()

On Sat, Jan 19, 2013 at 11:44 PM, Sedat Dilek <sedat.dilek@...il.com> wrote:
> Hi Dave,
>
> I suspected after initial testing a problem in TTY and applied two patches.
> After more testing the root cause was a problem in JBD2.
> A patch from Eric helped!
> Follow the thread in [1] for more details.
>
> If you are on Linux-Next (next-20130118) you need the following three patches.
>
> Ilya Zykov (2):
>       tty: Correct tty buffer flush.
>       tty: Add driver unthrottle in ioctl(...,TCFLSH,..).
>
> Eric Sandeen (1):
>       jbd2: don't wake kjournald unnecessarily
>
> Hope this helps you.
>
> Regards,
> - Sedat -
>
> [0] http://marc.info/?t=135862023700004&r=1&w=2
> [1] http://marc.info/?l=linux-serial&m=135860500714909&w=2
> [2] http://git.kernel.org/?p=linux/kernel/git/gregkh/tty.git;a=commitdiff;h=a1bf9584429d61b7096f93ae09325e1ba538e9e8
> [3] http://patchwork.ozlabs.org/patch/207237/

I am awfully sorry to tell you that my (JBD2) problem still exist!
Not sure this is anymore related to TTY-NEXT, so better I shut up!

- Sedat -

[1] http://marc.info/?l=linux-kernel&m=135864041624404&w=2
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