TTY race

C. Scott Ananian (cananian@lcs.mit.edu)
Wed, 8 Apr 1998 09:43:59 -0400 (EDT)


On Wed, 8 Apr 1998 Ted Ts'o wrote:

> From: alan@lxorguk.ukuu.org.uk (Alan Cox)
> Date: Sun, 29 Mar 1998 21:50:30 +0100 (BST)
>
> > XF86 3.1.2 (latest I have convient access to) does *not* do *any*
> > cli()/sti()'s. At least in os-dependend section disable_interrupts()
> > is empty function.
>
> The bug is in the tty drivers. Someone sent me a trace and bits to prove
> it. I don't see that Ugh in question can cause any X11 video switch problems
> however, just non-atomicities in the tty driver that may or may not be
> dangerous.
>
> Does someone want to send the trace and bits my way... ?

It was posted to the list some time back. I'll try to grep it up if I get
a chance later today.
--Scott
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