2.6.31/lftp: WARNING: at drivers/char/tty_io.c:1267 tty_open+0x439/0x4f0()

2.6.31/lftp: WARNING: at drivers/char/tty_io.c:1267 tty_open+0x439/0x4f0()

[Justin Piszcz]

Hello,

First time I have ever seen this issue, I am running 2.6.31 x86_64 & lftp:

$ lftp --version
LFTP | Version 4.0.2 | Copyright (c) 1996-2009 Alexander V. Lukyanov

I ran: lftp -f script where script downloads some files and then this 
occurred:

[1628036.347248] WARNING: at drivers/char/tty_io.c:1267 tty_open+0x439/0x4f0()
[1628036.347250] Hardware name:
[1628036.347252] Pid: 23495, comm: lftp Not tainted 2.6.31 #3
[1628036.347254] Call Trace:
[1628036.347259]  [<ffffffff810b5733>] ? do_lookup+0x143/0x270
[1628036.347261]  [<ffffffff8126a8f9>] ? tty_open+0x439/0x4f0
[1628036.347265]  [<ffffffff8105473f>] ? warn_slowpath_common+0x6f/0xc0
[1628036.347267]  [<ffffffff8126a8f9>] ? tty_open+0x439/0x4f0
[1628036.347270]  [<ffffffff813af3c2>] ? sock_aio_read+0x142/0x150
[1628036.347274]  [<ffffffff810afd78>] ? chrdev_open+0x88/0x170
[1628036.347277]  [<ffffffff810c50a3>] ? mntput_no_expire+0x23/0xf0
[1628036.347279]  [<ffffffff810afcf0>] ? chrdev_open+0x0/0x170
[1628036.347282]  [<ffffffff810ab00a>] ? __dentry_open+0x9a/0x260
[1628036.347284]  [<ffffffff810b9ace>] ? do_filp_open+0x71e/0xac0
[1628036.347287]  [<ffffffff810bac3f>] ? vfs_ioctl+0x2f/0xb0
[1628036.347289]  [<ffffffff810bb143>] ? do_vfs_ioctl+0x3e3/0x570
[1628036.347302]  [<ffffffff810c357a>] ? alloc_fd+0x4a/0x140
[1628036.347304]  [<ffffffff810aae77>] ? do_sys_open+0x97/0x150
[1628036.347308]  [<ffffffff8102c42b>] ? system_call_fastpath+0x16/0x1b
[1628036.347309] ---[ end trace b69ffec827da9b40 ]---

The lftp process was running in a screened session.

Any thoughts as to the bug here?

Justin.

Re: 2.6.31/lftp: WARNING: at drivers/char/tty_io.c:1267 tty_open+0x439/0x4f0()

[Justin Piszcz]

On Thu, 8 Oct 2009, Justin Piszcz wrote:

> Hello,
>
> First time I have ever seen this issue, I am running 2.6.31 x86_64 & lftp:
>
> $ lftp --version
> LFTP | Version 4.0.2 | Copyright (c) 1996-2009 Alexander V. Lukyanov
>
> I ran: lftp -f script where script downloads some files and then this 
> occurred:
>
> [1628036.347248] WARNING: at drivers/char/tty_io.c:1267 
> tty_open+0x439/0x4f0()
> [1628036.347250] Hardware name:
> [1628036.347252] Pid: 23495, comm: lftp Not tainted 2.6.31 #3
> [1628036.347254] Call Trace:
> [1628036.347259]  [<ffffffff810b5733>] ? do_lookup+0x143/0x270
> [1628036.347261]  [<ffffffff8126a8f9>] ? tty_open+0x439/0x4f0
> [1628036.347265]  [<ffffffff8105473f>] ? warn_slowpath_common+0x6f/0xc0
> [1628036.347267]  [<ffffffff8126a8f9>] ? tty_open+0x439/0x4f0
> [1628036.347270]  [<ffffffff813af3c2>] ? sock_aio_read+0x142/0x150
> [1628036.347274]  [<ffffffff810afd78>] ? chrdev_open+0x88/0x170
> [1628036.347277]  [<ffffffff810c50a3>] ? mntput_no_expire+0x23/0xf0
> [1628036.347279]  [<ffffffff810afcf0>] ? chrdev_open+0x0/0x170
> [1628036.347282]  [<ffffffff810ab00a>] ? __dentry_open+0x9a/0x260
> [1628036.347284]  [<ffffffff810b9ace>] ? do_filp_open+0x71e/0xac0
> [1628036.347287]  [<ffffffff810bac3f>] ? vfs_ioctl+0x2f/0xb0
> [1628036.347289]  [<ffffffff810bb143>] ? do_vfs_ioctl+0x3e3/0x570
> [1628036.347302]  [<ffffffff810c357a>] ? alloc_fd+0x4a/0x140
> [1628036.347304]  [<ffffffff810aae77>] ? do_sys_open+0x97/0x150
> [1628036.347308]  [<ffffffff8102c42b>] ? system_call_fastpath+0x16/0x1b
> [1628036.347309] ---[ end trace b69ffec827da9b40 ]---
>
> The lftp process was running in a screened session.
>
> Any thoughts as to the bug here?
>
> Justin.
>

If anyone has replied--

Please CC me as I am not on the LKML list, thanks.

Justin.

Re: 2.6.31/lftp: WARNING: at drivers/char/tty_io.c:1267 tty_open+0x439/0x4f0()

[Jiri Kosina]

On Fri, 9 Oct 2009, Justin Piszcz wrote:

> > [1628036.347248] WARNING: at drivers/char/tty_io.c:1267
> > tty_open+0x439/0x4f0()
> > [1628036.347250] Hardware name:
> > [1628036.347252] Pid: 23495, comm: lftp Not tainted 2.6.31 #3
> > [1628036.347254] Call Trace:
> > [1628036.347259]  [<ffffffff810b5733>] ? do_lookup+0x143/0x270
> > [1628036.347261]  [<ffffffff8126a8f9>] ? tty_open+0x439/0x4f0
> > [1628036.347265]  [<ffffffff8105473f>] ? warn_slowpath_common+0x6f/0xc0
> > [1628036.347267]  [<ffffffff8126a8f9>] ? tty_open+0x439/0x4f0
> > [1628036.347270]  [<ffffffff813af3c2>] ? sock_aio_read+0x142/0x150
> > [1628036.347274]  [<ffffffff810afd78>] ? chrdev_open+0x88/0x170
> > [1628036.347277]  [<ffffffff810c50a3>] ? mntput_no_expire+0x23/0xf0
> > [1628036.347279]  [<ffffffff810afcf0>] ? chrdev_open+0x0/0x170
> > [1628036.347282]  [<ffffffff810ab00a>] ? __dentry_open+0x9a/0x260
> > [1628036.347284]  [<ffffffff810b9ace>] ? do_filp_open+0x71e/0xac0
> > [1628036.347287]  [<ffffffff810bac3f>] ? vfs_ioctl+0x2f/0xb0
> > [1628036.347289]  [<ffffffff810bb143>] ? do_vfs_ioctl+0x3e3/0x570
> > [1628036.347302]  [<ffffffff810c357a>] ? alloc_fd+0x4a/0x140
> > [1628036.347304]  [<ffffffff810aae77>] ? do_sys_open+0x97/0x150
> > [1628036.347308]  [<ffffffff8102c42b>] ? system_call_fastpath+0x16/0x1b
> > [1628036.347309] ---[ end trace b69ffec827da9b40 ]---
> > 
> > The lftp process was running in a screened session.
> > 
> > Any thoughts as to the bug here?
> > 
> > Justin.
> 
> If anyone has replied--
> 
> Please CC me as I am not on the LKML list, thanks.

This should already be fixed by commit 0b5759c6. 

In case it is not, please shout.

-- 
Jiri Kosina
SUSE Labs, Novell Inc.