On Sun, Aug 02, 2009 at 03:22:01PM -0700, Linus Torvalds wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13815
> > Subject : emacs -nw compilation doesn't show the error message
> > Submitter : Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
> > Date : 2009-07-23 06:22 (11 days old)
> > First-Bad-Commit:
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d945cb9cce20ac7143c2de8d88b187f62db99bdc
>
> Same old pty bug, same fix: commit e043e42bdb.
>
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13813
> > Subject : Hangups in n_tty_read()
> > Submitter : Johannes Weiner <han...@cmpxchg.org>
> > Date : 2009-07-16 18:48 (18 days old)
> > References : http://marc.info/?l=linux-kernel&m=124777019920579&w=4
>
> Hmm. Worth testing that same fix, although the symptoms here are not
> exactly the same.
Hm, I had no debugging enabled, but I think a silent hang in
pty_write()
tty_flip_buffer_push()
flush_to_ldisc()
can cause the receiving side
tty_read()
n_tty_read()
to wait forever for updates. I haven't looked closely. It seems to
be gone with your latest master in any case.
Hannes
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