URGENT, PLEASE READ: 9.5.0-P1 now available

[Mark Andrews]

> On Jul 10 2008, I wrote:
> 
> >On Jul 10 2008, JINMEI Tatuya / 神明達哉 wrote:
> >
> >>For anyone experiencing this problem, I'd like to get the following
> >>information:
> >
> >This is for the BIND 9.4.2-P1 nameservers running under Solaris 10_x86
> >(SunOS 5.10 Generic_127112-10, in non-global zones, on a Sun X4100 M2,
> >if any of that matters) which I mentioned before - we have had a couple
> >more incidents overnight.
> [... details omitted ...]
> 
> I probably ought to provide an update on this. We continued to have such
> incidents with BIND 9.4.2-P1, so I changed out recursive nameservers to
> BIND 9.4.3b2, although I really don't like having to run beta versions in
> production. 
> 
> We have had no problems since then. Our named logging cuts off at level
> "warning", so it is possible that if it were at level "info" we would be
> seeing some of the messages mentioned in other postings.
> 
> Most of the time the file description consumption is well below 256, even
> though it must be peaking well above that. I suspect that this is why we
> haven't [yet!] seen anything like the failure with "rndc reconfig" mentioned 
> elsewhere. 32-bit mode Solaris STDIO cannot use fd numbers >= 256, and 
> AIUI named uses STDIO to read and write config/zone/journal files.

	Named reserves space for stdio.  

#ifdef F_DUPFD
        /*
         * Leave a space for stdio to work in.
         */
        if (sock->fd >= 0 && sock->fd < 20) {
                int new, tmp;
                new = fcntl(sock->fd, F_DUPFD, 20);
                tmp = errno;
                (void)close(sock->fd);
                errno = tmp;
                sock->fd = new;
                err = "isc_socket_create: fcntl";
        }
#endif
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org