Re: make[6]: stopped in /usr/src/lib/bind/dns

On Wed, 14 Aug 2013, Gavin Atkinson wrote:

> On Mon, 12 Aug 2013, AN wrote:
>> FreeBSD FBSD10 10.0-CURRENT FreeBSD 10.0-CURRENT #78 r253966: Mon Aug  5
>> 14:42:05 CDT 2013     root_at_FBSD10:/usr/obj/usr/src/sys/MYKERNEL  amd64
>>
>> # svn info
>> Path: .
>> Working Copy Root Path: /usr/src
>> URL: svn://svn.freebsd.org/base/head
>> Relative URL: ^/head
>> Repository Root: svn://svn.freebsd.org/base
>> Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
>> Revision: 254252
>> Node Kind: directory
>> Schedule: normal
>> Last Changed Author: ed
>> Last Changed Rev: 254252
>> Last Changed Date: 2013-08-12 13:17:45 -0500 (Mon, 12 Aug 2013)
>
> [...]
>
>> /usr/src/lib/bind/dns/../../../contrib/bind9/lib/dns/zone.c:14682:11: warning:
>> null character ignored
>>       [-Wnull-character]
>>         isc_time_
>>                  ^
>> /usr/src/lib/bind/dns/../../../contrib/bind9/lib/dns/zone.c:14682:12: warning:
>> null character ignored
>>       [-Wnull-character]
>>         isc_time_<U+0000>
>>                          ^
>> /usr/src/lib/bind/dns/../../../contrib/bind9/lib/dns/zone.c:14682:13: warning:
>> null character ignored
>>       [-Wnull-character]
>>         isc_time_<U+0000><U+0000>
>>                                  ^
> [...]
>> /usr/src/lib/bind/dns/../../../contrib/bind9/lib/dns/zone.c:14682:23: warning:
>> null character ignored
>>       [-Wnull-character]
>>
>> isc_time_<U+0000><U+0000><U+0000><U+0000><U+0000><U+0000><U+0000><U+0000><U+0000><U+0000><U+0000><U+0000>
>>
>> ^
>
> OK, this doesn't look good.  Somehow, that file appears to contain a load
> of \0 characters.
>
> Looking into where exactly in the file this appears (lines 14678-14688):
>
>                set_resigntime(zone);
>                UNLOCK_ZONE(zone);
>        }
>
>        isc_time_settoepoch(&zone->refreshkeytime);
>
>        /*
>         * If we're doing key maintenance, set the key refresh timer to
>         * the next scheduled key event or to one hour in the future,
>         * whichever is sooner.
>         */
>
> The null characters start exactly at 0x60000 into the file, a page
> boundary:
>
> 005ffd0  6e 74 69 6d 65 28 7a 6f 6e 65 29 3b 0a 09 09 55 |ntime(zone);...U|
> 005ffe0  4e 4c 4f 43 4b 5f 5a 4f 4e 45 28 7a 6f 6e 65 29 |NLOCK_ZONE(zone)|
> 005fff0  3b 0a 09 7d 0a 0a 09 69 73 63 5f 74 69 6d 65 5f |;..}...isc_time_|
> 0060000  73 65 74 74 6f 65 70 6f 63 68 28 26 7a 6f 6e 65 |settoepoch(&zone|
> 0060010  2d 3e 72 65 66 72 65 73 68 6b 65 79 74 69 6d 65 |->refreshkeytime|
> 0060020  29 3b 0a 0a 09 2f 2a 0a 09 20 2a 20 49 66 20 77 |);.../*.. * If w|
>
> So, at least one whole page has been replaced by a page of zeros.  This
> feels like it could actually be a VM issue, though it could also be
> storage.  What drives are you using on this system (AHCI?  SSD?), and are
> you using anything like e.g. geom_mirror?  A full dmesg may be useful.
>
> Gavin
>

Hi Gavin:

Thanks for your reply.  I am using AHCI on a single disk.  I believe what 
happened was that I had some disk corruption recently, fixed by a full 
fsck in single user mode.  After fixing that and rebooting I started to 
see this problem.  I was able to fix it by deleting /usr/src and doing a 
fresh svn co.  Now buildworld compiles successfully.  So, it was a local 
problem on this machine and not anything with the source code as I did not 
see anyone else report this problem.

Thanks again for your help, sorry for the noise.

Andy