[cgiapp] Weird Perl Internal Errors

[Jerry Kaidor]

> Hi Jerry,
>
> Though off-topic for this list -- DBI appears to be the culprit -- since
> DBD::* modules usually have XS parts, that's probably where these errors
> are coming from.

*** I have asked on dbi-users this morning.  Meanwhile, I'd like to attack
this from a time angle.  Anybody know how to propogate errors back into
the Apache webserver?  I'd like to create my own "errors" that would wind
up in
/var/log/httpd/error_log, and thusly bracket the problem in time.

  Thanks in advance,

                            - Jerry Kaidor ( jerry at tr2.com )






>
> You might ask on a DBI mailing list or the appropriate DB Driver list
> (mysql-devel?) and be sure to include your operating system type and
> version, perl version, database type and version and the versions of DBI
> and the DBD driver you're running, and what triggers the error (apache
> restart?  db reads, db writes??  something else?)
>
> Most likely you just have to re-install or upgrade your db drivers (e.g.
> DBD::mysql)
>
> hth,
>
> -dave
>
> On 8/28/2010 11:26 AM, Jerry Kaidor wrote:
>> Hello,
>>
>>      I'm getting some errors in my cgiapp-based application that seem to
>> be
>> related to Perl internals.  They are produced by the Apache webserver,
>> and are ending up in /var/log/httpd/error_log.
>>
>>    There's one of them tacked onto the end of this message.   I have no
>> clue as how to even approach this stuff.  I did find some mention of
>> such items in the perlguts man page.
>>
>>     The first one seems to be saying:
>> " There exists a scalar of unknown value."
>> " There is a reference pointing to 0x8c64f64 located at 0x8c64f58."
>> (etc)
>>
>>     Is there some way for me to get at the symbol table and find out
>> what's
>> at 0x8c64f58?  I sure would like to troubleshoot this in some other way
>> than just removing pieces  of the app until it goes away....  Is there
>> a
>> "usual cause" for such distress in the cgiapp environment?  BTW, the app
>> seems to work fine.
>>
>> Thanks in advance,
>>
>>                         - Jerry Kaidor
>>
>> ------- snip ---------------------
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6] SV =
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6] RV(0x8c64f64)
>> at
>> 0x8c64f58
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   REFCNT = 1
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   FLAGS =
>> (ROK,READONLY)
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   RV =
>> 0x8c64d28
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6] SV =
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6] PVHV(0x8a0a51c)
>> at 0x8c64d28
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]       REFCNT =
>> 1
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]       FLAGS =
>> (OBJECT,OOK,SHAREKEYS)
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   STASH =
>> 0x8703ef8
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6] \t"DBI::db"
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   ARRAY =
>> 0x8c68680
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   KEYS = 0
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   FILL = 0
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   MAX = 7
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   RITER = -1
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]
>> [Sat Aug 28 07:37:21 2010] [error] [client 10.120.102.6]   EITER = 0x0
>>
>> -------------- endsnip ---------
>>
>>
>>
>>
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