Debian Bug report logs - #306911
jdresolve: Random crashes without explicit error message

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Message #5 received at [email protected] (full text, mbox, reply):

From: Cyril Bouthors <[email protected]>

To: Debian Bug Tracking System <[email protected]>

Subject: jdresolve: Random crashes without explicit error message

Date: Fri, 29 Apr 2005 13:48:26 +0300

Package: jdresolve
Version: 0.6.1-4
Severity: important

Hi,

jdresolve crashed from time to time with the following error message:

Can't use an undefined value as an ARRAY reference at /usr/lib/perl5/Net/DNS/Packet.pm line 333, <FILE> line 10044.

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.10-1-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages jdresolve depends on:
ii  libnet-dns-perl               0.48-1     Perform DNS queries from a Perl sc
ii  perl                          5.8.4-8    Larry Wall's Practical Extraction 

-- no debconf information
<#secure method=pgpmime mode=sign>

-- 
Cyril Bouthors

Message #10 received at [email protected] (full text, mbox, reply):

From: Frederic Peters <[email protected]>

To: [email protected]

Cc: Cyril Bouthors <[email protected]>

Subject: Re: Bug#306911: jdresolve: Random crashes without explicit error message

Date: Fri, 29 Apr 2005 13:29:42 +0200

Cyril Bouthors wrote:

> jdresolve crashed from time to time with the following error message:
> 
> Can't use an undefined value as an ARRAY reference at /usr/lib/perl5/Net/DNS/Packet.pm line 333, <FILE> line 10044.

You can't pinpoint this to a specific log line ?  Do you have a file
exhibiting the bug ?  Could you send it to the bug report ?



Regards,

        Frederic

Message #15 received at [email protected] (full text, mbox, reply):

From: Cyril Bouthors <[email protected]>

To: Frederic Peters <[email protected]>

Cc: [email protected]

Subject: Re: Bug#306911: jdresolve: Random crashes without explicit error message

Date: Fri, 29 Apr 2005 14:33:48 +0300

[Message part 1 (text/plain, inline)]

On 29 Apr 2005, Frederic Peters wrote:
> You can't pinpoint this to a specific log line ?  Do you have a file
> exhibiting the bug ?  Could you send it to the bug report ?

The logfile is 8.7GB big.

It does not seem to be reproducible with a specific log line. I guess
it's rather a bug in the DNS code or something.

What if jdresolve runs on a machine where the resolver sometimes
fails?
-- 
Cyril Bouthors

[Message part 2 (application/pgp-signature, inline)]

Message #20 received at [email protected] (full text, mbox, reply):

From: Frederic Peters <[email protected]>

To: [email protected]

Cc: Cyril Bouthors <[email protected]>

Subject: Re: Bug#306911: jdresolve: Random crashes without explicit error message

Date: Fri, 29 Apr 2005 14:06:09 +0200

Cyril Bouthors wrote:

> What if jdresolve runs on a machine where the resolver sometimes
> fails?

It should handle this correctly (and does).  Here it looks like a
broken DNS answer.

Could you try to edit line 855 of /usr/bin/jdresolve

- if ($packet) {
+ if ($packet and $packet->answer) {

?



        Frederic

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