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SubjectRe: tty related hangs with 2.6.31-rc3
On Wed, Jul 15, 2009 at 06:59:56PM +0530, Aneesh Kumar K.V wrote:
> Hi,
>
> I am finding tty related hangs with 2.6.31-rc3. This didn't happen
> before. This happen when i close the emacs session. The /proc/<pid>/stack
> content is below
>
> [<c0362c5b>] process_echoes+0x2b/0x2e0
> [<c03638cb>] n_tty_write_wakeup+0xb/0x40
> [<c0360a88>] tty_wakeup+0x58/0x70
> [<c0368347>] pty_write+0x67/0x70
> [<c035f1cb>] tty_put_char+0x2b/0x40
> [<c036291f>] do_output_char+0xef/0x200
> [<c0362d4e>] process_echoes+0x11e/0x2e0
> [<c0364292>] n_tty_receive_char+0x102/0x710
> [<c0364ac0>] n_tty_receive_buf+0x220/0x410
> [<c036059c>] tiocsti+0x8c/0xa0
> [<c0361aca>] tty_ioctl+0x25a/0x310
> [<c01e52c8>] vfs_ioctl+0x28/0x80
> [<c01e54f4>] do_vfs_ioctl+0x64/0x1c0
> [<c01e56a3>] sys_ioctl+0x53/0x70
> [<c0102e3c>] sysenter_do_call+0x12/0x28
> [<ffffffff>] 0xffffffff
>

Another hang

[<c0362c5b>] process_echoes+0x2b/0x2e0
[<c03639ff>] n_tty_write+0x6f/0x2b0
[<c0361cb2>] tty_write+0x132/0x1e0
[<c01d8966>] vfs_write+0x96/0x190
[<c01d8b1d>] sys_write+0x3d/0x70
[<c0102e3c>] sysenter_do_call+0x12/0x28
[<ffffffff>] 0xffffffff

-aneesh


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