Messages in this thread |  | | Date | Mon, 16 Jun 2008 12:46:02 +0100 | From | Alan Cox <> | Subject | Re: [Bug 10741] bug in `tty: BKL pushdown'? |
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On Mon, 16 Jun 2008 11:33:13 +0100 Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > The bug still exists, however, a bisect on another machine with the same > > userland leads to different commit > > (47f86834bbd4193139d61d659bebf9ab9d691e37 "redo locking of tty->pgrp"), > > so it is not all that clear and stable. > > Now that would actually make a lot more sense as a root cause.
Experiment time. In _proc_set_tty() in tty_io.c move the
tty->session = get_pid(task_session(tsk));
back inside the lock just before
tty->pgrp = get_pid(task_pgrp(tsk));
Alan -- "Standards committees don't like hashing. It looks complicated and insufficiently deterministic on an overhead projector." - Vern Schryver
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