Forum: War Ensemble BBS

bind 9.16.6 on FreeBSD - Assert

From Borja Marcos@borjam@sarenet.es to bind-users on Tue Sep 1 17:12:39 2020

From Newsgroup: comp.protocols.dns.bind

Hi,
I had a named process aborting with an assert.
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - rbt.c:2355: REQUIRE(newbits <= rbt->maxhashbits) failed, back trace
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #0 0x43d260 in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #1 0x62035a in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #2 0x514868 in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #3 0x515616 in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #4 0x529c7d in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #5 0x579df7 in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #6 0x645e1c in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #7 0x80225e036 in ?? <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - exiting (due to assertion failure)
<6>1 2020-08-27T15:52:04.091803+00:00 host kernel - - - pid 6520 (named), jid 0, uid 53: exited on signal 6
I have a full log of queries (it’s a recursive only server) and I haven’t seen anything unusual before the crash. Unfortunately the
program was stripped, I have recompiled it with debug symbols.
It is bind 9.16.6, built from ports on FreeBSD 11.3.
Any hint on what to look for? Fortunately I have another server running 9.11. It wasn’t affected.
Thanks!
Borja.
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From =?Windows-1252?Q?S=F8ren_Andersen?=@SOAN@stofa.dk to bind-users@lists.isc.org on Tue Sep 1 17:48:21 2020

From Newsgroup: comp.protocols.dns.bind

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hmm.. I think you hit this bug right here: https://gitlab.isc.org/isc-proje= cts/bind9/-/issues/2104

/S=F8ren
________________________________
From: bind-users <bind-users-bounces@lists.isc.org> on behalf of Borja Marc=
os <borjam@sarenet.es>
Sent: Tuesday, September 1, 2020 17:12
To: bind-users@lists.isc.org <bind-users@lists.isc.org>
Subject: bind 9.16.6 on FreeBSD - Assert

[EXTERNAL MAIL]

Hi,

I had a named process aborting with an assert.

<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - rbt.c:2355: REQU= IRE(newbits <=3D rbt->maxhashbits) failed, back trace
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #0 0x43d260 in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #1 0x62035a in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #2 0x514868 in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #3 0x515616 in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #4 0x529c7d in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #5 0x579df7 in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #6 0x645e1c in ?=
?
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #7 0x80225e036 i=
n ??
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - exiting (due to = assertion failure)
<6>1 2020-08-27T15:52:04.091803+00:00 host kernel - - - pid 6520 (named), j=
id 0, uid 53: exited on signal 6

I have a full log of queries (it=92s a recursive only server) and I haven=
=92t seen anything unusual before the crash. Unfortunately the
program was stripped, I have recompiled it with debug symbols.

It is bind 9.16.6, built from ports on FreeBSD 11.3.

Any hint on what to look for? Fortunately I have another server running 9.1=
1. It wasn=92t affected.

Thanks!

Borja.

_______________________________________________
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscri=
be from this list

ISC funds the development of this software with paid support subscriptions.=
Contact us at https://www.isc.org/contact/ for more information.

bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users

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<div style=3D"color: rgb(0, 0, 0);"><font face=3D"Helvetica"><span style=3D= "font-size: 14px;">hmm.. I think you hit this bug right here: <a href= =3D"https://gitlab.isc.org/isc-projects/bind9/-/issues/2104">https://gitlab= .isc.org/isc-projects/bind9/-/issues/2104</a></span></font></div>
<div style=3D"color: rgb(0, 0, 0);"><font face=3D"Helvetica"><br>
</font></div>
<div style=3D"color: rgb(0, 0, 0);"><font face=3D"Helvetica">/S=F8ren</font= ></div>
<div id=3D"appendonsend"></div>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st= yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> bind-users <bind-u= sers-bounces@lists.isc.org> on behalf of Borja Marcos <borjam@sarenet= .es><br>
<b>Sent:</b> Tuesday, September 1, 2020 17:12<br>
<b>To:</b> bind-users@lists.isc.org <bind-users@lists.isc.org><br> <b>Subject:</b> bind 9.16.6 on FreeBSD - Assert</font>
<div> </div>
</div>
<div class=3D"BodyFragment"><font size=3D"2"><span style=3D"font-size:11pt;=

<div class=3D"PlainText">[EXTERNAL MAIL]<br>

Hi,<br>

I had a named process aborting with an assert.<br>

<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - rbt.c:2355=
: REQUIRE(newbits <=3D rbt->maxhashbits) failed, back trace<br> <26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #0 0x43d26=
0 in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #1 0x62035=
a in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #2 0x51486=
8 in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #3 0x51561=
6 in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #4 0x529c7=
d in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #5 0x579df=
7 in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #6 0x645e1=
c in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - #7 0x80225= e036 in ??<br>
<26>1 2020-08-27T15:52:04.000000+00:00 host named 6520 - - exiting (d=
ue to assertion failure)<br>
<6>1 2020-08-27T15:52:04.091803+00:00 host kernel - - - pid 6520 (nam= ed), jid 0, uid 53: exited on signal 6<br>

I have a full log of queries (it=92s a recursive only server) and I haven=
=92t seen anything unusual before the crash. Unfortunately the<br>
program was stripped, I have recompiled it with debug symbols.<br>

It is bind 9.16.6, built from ports on FreeBSD 11.3.<br>

Any hint on what to look for? Fortunately I have another server running 9.1=
1. It wasn=92t affected.<br>

Thanks!<br>

Borja.<br>

_______________________________________________<br>
Please visit <a href=3D"https://lists.isc.org/mailman/listinfo/bind-users">= https://lists.isc.org/mailman/listinfo/bind-users</a> to unsubscribe from t= his list<br>

ISC funds the development of this software with paid support subscriptions.=
Contact us at
<a href=3D"https://www.isc.org/contact/">https://www.isc.org/contact/</a> f=
or more information.<br>

bind-users mailing list<br>
bind-users@lists.isc.org<br>
<a href=3D"https://lists.isc.org/mailman/listinfo/bind-users">https://lists= .isc.org/mailman/listinfo/bind-users</a><br>
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From Borja Marcos@borjam@sarenet.es to =?utf-8?Q?S=C3=B8ren_Andersen?= on Wed Sep 2 08:39:10 2020

From Newsgroup: comp.protocols.dns.bind

On 1 Sep 2020, at 19:48, Søren Andersen <SOAN@stofa.dk> wrote:

hmm.. I think you hit this bug right here: https://gitlab.isc.org/isc-projects/bind9/-/issues/2104

Looks like that. I compiled bind with debug symbols and it crashed again.
No way to append this to your bug report, it’s closed.
Borja.
——
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - rbt.c:2355:
REQUIRE(newbits <= rbt->maxhashbits) failed, back trace
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #0 0x43fe19
in assertion_failed()+0x59
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #1 0x7ba3d8
in isc_assertion_failed()+0x38
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #2 0x5cbb8f
in rehash()+0x9f
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #3 0x5c2dc7
in maybe_rehash()+0x47
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #4 0x5c5574
in hash_node()+0xd4
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #5 0x5c5089 in dns_rbt_addnode()+0xf19
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #6 0x5e6bd0 in findnodeintree()+0x260
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #7 0x5d1c60 in findnode()+0xa0
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #8 0x5201a0 in dns_db_findnode()+0x130
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #9 0x6a8351 in cache_name()+0x3a1
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #10 0x6a240f in cache_message()+0x16f
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #11 0x69f4a6 in resquery_response()+0xd06
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #12 0x804d03 in dispatch()+0xc63
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #13 0x800751 in run()+0x41
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #14 0x80245e036 in _fini()+0x801c3a35e
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - exiting (due to assertion failure)
<6>1 2020-09-02T04:30:04.407121+00:00 host1 kernel - - - pid 49310 (named), jid 0, uid 53: exited on signal 6
——
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From =?Windows-1252?Q?S=F8ren_Andersen?=@SOAN@stofa.dk to Borja Marcos on Wed Sep 2 07:15:11 2020

From Newsgroup: comp.protocols.dns.bind

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It looks like the same bug to me. - Did you try to patch your source code w= ith the path isc just made?
________________________________
From: Borja Marcos <borjam@sarenet.es>
Sent: Wednesday, September 2, 2020 08:39
To: S=F8ren Andersen <SOAN@stofa.dk>
Cc: bind-users@lists.isc.org <bind-users@lists.isc.org>
Subject: Re: bind 9.16.6 on FreeBSD - Assert

[EXTERNAL MAIL]

On 1 Sep 2020, at 19:48, S=F8ren Andersen <SOAN@stofa.dk> wrote:

hmm.. I think you hit this bug right here: https://gitlab.isc.org/isc-pro=

jects/bind9/-/issues/2104

Looks like that. I compiled bind with debug symbols and it crashed again.

No way to append this to your bug report, it=92s closed.

Borja.

=97=97
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - rbt.c:2355:
REQUIRE(newbits <=3D rbt->maxhashbits) failed, back trace
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #0 0x43fe19
in assertion_failed()+0x59
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #1 0x7ba3d8
in isc_assertion_failed()+0x38
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #2 0x5cbb8f
in rehash()+0x9f
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #3 0x5c2dc7
in maybe_rehash()+0x47
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #4 0x5c5574
in hash_node()+0xd4
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #5 0x5c5089 in=
dns_rbt_addnode()+0xf19
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #6 0x5e6bd0 in=
findnodeintree()+0x260
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #7 0x5d1c60 in=
findnode()+0xa0
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #8 0x5201a0 in=
dns_db_findnode()+0x130
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #9 0x6a8351 in=
cache_name()+0x3a1
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #10 0x6a240f i=
n cache_message()+0x16f
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #11 0x69f4a6 i=
n resquery_response()+0xd06
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #12 0x804d03 i=
n dispatch()+0xc63
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #13 0x800751 i=
n run()+0x41
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #14 0x80245e03=
6 in _fini()+0x801c3a35e
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - exiting (due t=
o assertion failure)
<6>1 2020-09-02T04:30:04.407121+00:00 host1 kernel - - - pid 49310 (named),=
jid 0, uid 53: exited on signal 6
=97=97

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It looks like the same bug to me. - Did you try to patch your source code w= ith the path isc just made?</div>
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<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st= yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Borja Marcos <borj= am@sarenet.es><br>
<b>Sent:</b> Wednesday, September 2, 2020 08:39<br>
<b>To:</b> S=F8ren Andersen <SOAN@stofa.dk><br>
<b>Cc:</b> bind-users@lists.isc.org <bind-users@lists.isc.org><br> <b>Subject:</b> Re: bind 9.16.6 on FreeBSD - Assert</font>
<div> </div>
</div>
<div class=3D"BodyFragment"><font size=3D"2"><span style=3D"font-size:11pt;=

<div class=3D"PlainText">[EXTERNAL MAIL]<br>

> On 1 Sep 2020, at 19:48, S=F8ren Andersen <SOAN@stofa.dk> wrote:=

><br>
> hmm.. I think you hit this bug right here: <a href=3D"https://gitlab.i= sc.org/isc-projects/bind9/-/issues/2104"> https://gitlab.isc.org/isc-projects/bind9/-/issues/2104</a><br>

Looks like that. I compiled bind with debug symbols and it crashed again.<b=

No way to append this to your bug report, it=92s closed.<br>

Borja.<br>

=97=97<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - rbt.c:23= 55:<br>
 REQUIRE(newbits <=3D rbt->maxhashbits) failed, back trace<br> <26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #0 0x43f= e19<br>
 in assertion_failed()+0x59<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #1 0x7ba= 3d8<br>
 in isc_assertion_failed()+0x38<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #2 0x5cb= b8f<br>
 in rehash()+0x9f<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #3 0x5c2= dc7<br>
 in maybe_rehash()+0x47<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #4 0x5c5= 574<br>
 in hash_node()+0xd4<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #5 0x5c5= 089 in dns_rbt_addnode()+0xf19<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #6 0x5e6= bd0 in findnodeintree()+0x260<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #7 0x5d1= c60 in findnode()+0xa0<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #8 0x520= 1a0 in dns_db_findnode()+0x130<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #9 0x6a8= 351 in cache_name()+0x3a1<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #10 0x6a= 240f in cache_message()+0x16f<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #11 0x69= f4a6 in resquery_response()+0xd06<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #12 0x80= 4d03 in dispatch()+0xc63<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #13 0x80= 0751 in run()+0x41<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - #14 0x80= 245e036 in _fini()+0x801c3a35e<br>
<26>1 2020-09-02T04:30:04.000000+00:00 host1 named 49310 - - exiting = (due to assertion failure)<br>
<6>1 2020-09-02T04:30:04.407121+00:00 host1 kernel - - - pid 49310 (n= amed), jid 0, uid 53: exited on signal 6<br>
=97=97<br>

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From Borja Marcos@borjam@sarenet.es to =?utf-8?Q?S=C3=B8ren_Andersen?= on Wed Sep 2 10:32:45 2020

From Newsgroup: comp.protocols.dns.bind

On 2 Sep 2020, at 09:15, Søren Andersen <SOAN@stofa.dk> wrote:

It looks like the same bug to me. - Did you try to patch your source code with the path isc just made?

No, I am not aware of a patch. I have rolled it back to 9.11 for now, it’s a production server.
Thanks,
Borja.
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From Ingeborg Hellemo@ingeborg.hellemo@uit.no to bind-users@lists.isc.org on Thu Sep 3 11:13:03 2020

From Newsgroup: comp.protocols.dns.bind

SOAN@stofa.dk said:

It is bind 9.16.6, built from ports on FreeBSD 11.3.

Same server combination here but different error.

Aug 27 01:36:25 chuck named[11975]: resolver.c:5125: INSIST(dns_name_issubdomain(&fctx->name, &fctx->domain)) failed, back trace
Aug 27 01:36:25 chuck named[11975]: #0 0x43ba00 in ??
Aug 27 01:36:25 chuck named[11975]: #1 0x61ad8a in ??
Aug 27 01:36:25 chuck named[11975]: #2 0x5689bb in ??
Aug 27 01:36:25 chuck named[11975]: #3 0x56e979 in ??
Aug 27 01:36:25 chuck named[11975]: #4 0x5760b0 in ??
Aug 27 01:36:25 chuck named[11975]: #5 0x573bc2 in ??
Aug 27 01:36:25 chuck named[11975]: #6 0x64084c in ??
Aug 27 01:36:25 chuck named[11975]: #7 0x80206e036 in ??
Aug 27 01:36:25 chuck named[11975]: exiting (due to assertion failure)

Upgraded to bind916-9.16.6_1 om Sep 1, but then once more

Sep 2 20:20:22 chuck named[51566]: resolver.c:5125: INSIST(dns_name_issubdomain(&fctx->name, &fctx->domain)) failed, back trace
Sep 2 20:20:22 chuck named[51566]: #0 0x43d2a0 in ??
Sep 2 20:20:22 chuck named[51566]: #1 0x62039a in ??
Sep 2 20:20:22 chuck named[51566]: #2 0x56d84b in ??
Sep 2 20:20:22 chuck named[51566]: #3 0x573809 in ??
Sep 2 20:20:22 chuck named[51566]: #4 0x57b260 in ??
Sep 2 20:20:22 chuck named[51566]: #5 0x578d50 in ??
Sep 2 20:20:22 chuck named[51566]: #6 0x645e5c in ??
Sep 2 20:20:22 chuck named[51566]: #7 0x80246e036 in ??
Sep 2 20:20:22 chuck named[51566]: exiting (due to assertion failure)

The server is dualstack and serves DNS via both IPv4 and IPv6.

Has anyone observed something similar?

--Ingeborg
--
Ingeborg �strem Hellemo -- ingeborg.hellemo@uit.no
Dep. of Information Technology --- Univ. of Troms�

--- Synchronet 3.18a-Linux NewsLink 1.113

From Borja Marcos@borjam@sarenet.es to Ingeborg Hellemo on Thu Sep 3 11:50:09 2020

From Newsgroup: comp.protocols.dns.bind

On 3 Sep 2020, at 11:13, Ingeborg Hellemo <ingeborg.hellemo@uit.no> wrote: The server is dualstack and serves DNS via both IPv4 and IPv6.

Has anyone observed something similar?

No, I haven’t seen this one.
If you have used the ports subsystem, can you recompile the port with the WITH_DEBUG option?
Doing that the backtrace will include the function names.
Best regards,
Borja.
--- Synchronet 3.18a-Linux NewsLink 1.113

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