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    SubjectRe: kernel oops!
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    Date
    On Sun, 2005-01-23 at 09:51 -0800, Linus Torvalds wrote:

    I applied the patch and the uptime is 1 day and no oops, i will wait 2
    more days too see if the oops appears, then I will compile the kernel
    with CONFIG_PREEMPT. Before, when PREEMPT was enabled, the oops appeared
    immediatly after booting and more often.

    > ----
    > --- 1.32/drivers/char/pty.c 2005-01-10 17:29:36 -08:00
    > +++ edited/drivers/char/pty.c 2005-01-23 09:49:16 -08:00
    > @@ -149,13 +149,15 @@
    > static int pty_chars_in_buffer(struct tty_struct *tty)
    > {
    > struct tty_struct *to = tty->link;
    > + ssize_t (*chars_in_buffer)(struct tty_struct *);
    > int count;
    >
    > - if (!to || !to->ldisc.chars_in_buffer)
    > + /* We should get the line discipline lock for "tty->link" */
    > + if (!to || !(chars_in_buffer = to->ldisc.chars_in_buffer))
    > return 0;
    >
    > /* The ldisc must report 0 if no characters available to be read */
    > - count = to->ldisc.chars_in_buffer(to);
    > + count = chars_in_buffer(to);
    >
    > if (tty->driver->subtype == PTY_TYPE_SLAVE) return count;
    >
    >
    --
    ierdnah <ierdnah@go.ro>

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