Hi,
On 07/15/2014 11:08 AM, Li, ZhenHua wrote:
This bug was founded in RHEL 6, kernel version 2.6.32.Sure, but there is tty_lock_pair instead.
But I also checked the file tty_io.c in latest kernel, not all the code
protected by tty_lock(tty).
For example, in function tty_del_file,
if (--tty->count < 0) {
}
and
tty_del_file(filp);
are not surrounded by tty_lock(tty).
So I think the new lock is necessary.Nope, sorry, you have to complain to RedHat about this kernel. Unless
you can reproduce this with the vanilla kernel.
thanks,