stability of FreeBSD 7 Beta 3?

[Kris Kennaway]

Kris Kennaway wrote:
> Chris wrote:
>> On 26/11/2007, Kris Kennaway <kris at freebsd.org> wrote:
>>> Tore Lund wrote:
>>>> Ivan Voras wrote:
>>>>> Dave wrote:
>>>>>> Hello,
>>>>>>    How stable is FreeBSD 7 Beta 3? Is it near production are their 
>>>>>> any
>>>>>> outstanding issues?
>>>>> Probably no major bugs will be fixed between now and 7.0 so you 
>>>>> might as
>>>>> well start using it now.
>>>>>
>>>>> It's "stable enough" like all .0 releases, meaning you should 
>>>>> throughly
>>>>> test it for your own workload before using it in production.
>>>> Just curious, what is the "official" forum for pre-release discussions?
>>>> I notice there are some threads on the "current" list, but it seems to
>>>> me that this is really "questions" stuff, since it is an upcoming 
>>>> release.
>>> freebsd-stable is probably best.
>>>
>>>> In any case, I tried the boot-only CD, and I was not able to install 
>>>> any
>>>> packages during the install process.  Sysinstall aborted with Signal 11
>>>> when trying to read INDEX from the ftp site.  Pkg_add from the command
>>>> line seems to work, however, so it looks like I may get online from
>>>> 7.0-BETA3 tomorrow.
>>> That is expected, packages are not available until later in the release
>>> cycle.
>>>
>>>> Moreover, wasn't there supposed to be a new install program?  I have
>>>> read some promising remarks about it, but it's certainly not part of
>>>> 7.0-BETA3.  Personally, I would much rather type a long list of 
>>>> commands
>>>> than use the old, rickety sysinstall.
>>> One is in early development, but not even complete let alone ready to
>>> replace sysinstall.
>>>
>>> Kris
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>>>
>>
>> Kris can I ask what sort of importance bugs that cause crashes (page
>> faults) are?
>> I reported 2 bugs before BETA1 both these bugs involved 7.0 getting a
>> page fault and of course then stop responding requiring a reboot yet
>> both PRs have had no response and both bugs are still present in BETA3
>> I see minor issues been worked on such as responsiveness in desktop
>> use whilst issues that cause system crashes are left unattended.  Is
>> FreeBSD primarily a desktop os now and thats the new path?
> 
> Of course not :P  What are the PR references?
> 
>> Try this.
>>
>> Login to twice on ssh.
>> If not root su both to root.
>> using the 2nd tty do a watch -W on the first tty.
>> on the first tty type 'killall watch'
>> you have now crashed freebsd 7 and most probably a auto reboot timer
>> is counting down.
> 
> I can confirm this.

Try this patch from kib@

diff --git a/sys/dev/snp/snp.c b/sys/dev/snp/snp.c
index a84e90c..b8f3d63 100644
--- a/sys/dev/snp/snp.c
+++ b/sys/dev/snp/snp.c
@@ -491,7 +491,7 @@ snpioctl(struct cdev *dev, u_long cmd, caddr_t data, 
int flags,
      struct thread *td)
  {
  	struct snoop *snp;
-	struct tty *tp, *tpo;
+	struct tty *tp;
  	struct cdev *tdev;
  	struct file *fp;
  	int s;
@@ -502,6 +502,9 @@ snpioctl(struct cdev *dev, u_long cmd, caddr_t data, 
int flags,
  		s = *(int *)data;
  		if (s < 0)
  			return (snp_down(snp));
+		if (snp->snp_tty != NULL)
+			return (EBUSY);
+
  		if (fget(td, s, &fp) != 0)
  			return (EINVAL);
  		if (fp->f_type != DTYPE_VNODE ||
@@ -520,13 +523,6 @@ snpioctl(struct cdev *dev, u_long cmd, caddr_t 
data, int flags,
  			return (EBUSY);

  		s = spltty();
-
-		if (snp->snp_target == NULL) {
-			tpo = snp->snp_tty;
-			if (tpo)
-				tpo->t_state &= ~TS_SNOOP;
-		}
-
  		tp->t_state |= TS_SNOOP;
  		snp->snp_olddisc = tp->t_line;
  		tp->t_line = snooplinedisc;