+1 maintenance report (dogtag-pki vs 389-ds-base)

[Sergio Durigan Junior]

On Thursday, January 21 2021, Timo Aaltonen wrote:

> On 21.1.2021 18.59, Lukas Märdian wrote:
>> NO - dogtag-pki vs ['389-ds-base/1.4.4.9-1build2',
>> 'net-snmp/5.9+dfsg-3ubuntu1']
>>
>> So I had a closer look into the dogtag-pki failure on s390x. I could
>> easily reproduce the problem inside a s390x LXD container, but
>> wasn't able to isolate the root cause... After quite some
>> investigation I was able to produce a debug trace of the problem,
>> and to me it looks like the issue is actually not inside this
>> package, but rather inside the LDAP server (i.e. 389-ds-base), as
>> the debug log shows an "SEVERE: Unable to modify o=pki-tomcat-CA:
>> netscape.ldap.LDAPException: error result (1); Operations error",
>> i.e. "Internal Server Error"
>> (https://docs.oracle.com/cd/E19957-01/816-5618-10/netscape/ldap/LDAPException.html#OPERATION_ERROR
>> <https://docs.oracle.com/cd/E19957-01/816-5618-10/netscape/ldap/LDAPException.html#OPERATION_ERROR>). I
>> do not really understand why the LDAP server would behave
>> differently on s390x than on all the other architectures, but I
>> guess this is for another time...
>>
>> Debug log: https://paste.ubuntu.com/p/vx9JB6VTjF/
>> <https://paste.ubuntu.com/p/vx9JB6VTjF/>
>
> This seems to go back to at least 389-ds-base 1.4.4.4, probably
> longer. Would be useful to know where it regressed.
>
> As to why it only happens on s390x my guess would be that it's related
> to endianness (it's big-endian). Upstream tests only on amd64 (LE).

I'm also very interested in solving this, because it's blocking net-snmp
and a bunch of other packages from migrating.

Last week I did some investigation and pretty much stopped at the same
point as Lukas did.  I wasn't able to pinpoint exactly what the root
cause is, but Timo's guess is a good starting point.

I fiddled a bit with autopkgtest.db and confirmed that the failures
started with 389-ds-base/1.4.4.4-1:

  sqlite> SELECT test.package, result.version, result.triggers, result.exitcode FROM result INNER JOIN test ON test.id = result.test_id where test.package = 'dogtag-pki' and result.triggers LIKE '%389-ds-base%';

I'll see if I have the time to investigate a bit more.

Thanks,

-- 
Sergio
GPG key ID: E92F D0B3 6B14 F1F4 D8E0  EB2F 106D A1C8 C3CB BF14