On 19 Jun 2005, at 12:43, Jeff Buehler wrote:
> Your get system panics using the patch? Are you certain you have the
> right one - I get nothing like that at all. Perhaps you are running a
> service that uses the function (kqueue_stat in kern_event.c) and
> doesn't like it that I am not running?
Yep, it does seem to be related to presence of the patch, and the
patch does prevent open files from building up. A panic would almost
always occur after etc/rc.d/xmail stop, which is what I've always
used for stopping XMail.
I generated a patched kernel otherwise same as one I'm running now
and intend to use that on next reboot.
>
> Here are the modifications I use that work perfectly in 5.3 and 5.4 so
> far for me:
>
> /* OLD FUNCTION COMMENT OUT*/
> /*
> static int
> kqueue_stat(struct file *fp, struct stat *st, struct ucred
> *active_cred,
> struct thread *td)
> {
>
> return (ENXIO);
> }
> */
>
> /* NEW FUNCTION ADD */
>
> static int
> kqueue_stat(struct file *fp, struct stat *st, struct ucred
> *active_cred,
> struct thread *td)
> {
> struct kqueue *kq;
> int error;
>
> if ((error = kqueue_aquire(fp, &kq)))
> return ENOENT;
> KQ_LOCK(kq);
> bzero((void *)st, sizeof(*st));
> st->st_size = kq->kq_count;
> kqueue_release(kq, 1);
> KQ_UNLOCK(kq);
> st->st_blksize = sizeof(struct kevent);
> st->st_mode = S_IFIFO;
> return (0);
> }
That's the one I've tried.
> also, I haven't seen these mails...are they in the list and I'm just
> missing them?
This will be my third email re this thread.
> I would definately advice trying the patch, Ross - if it causes system
> panics that you didn't get before as it seems to for David, then roll
> it back. Hopefully the FreeBSD team will fix this bug before too long
> - they have been advised about it, but I don't know it's status...
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