Re: [uml-user] impact on erlang?

[Matthias R. <sup...@su...>]

Hello,

On 13.12.2011 13:54, richard -rw- weinberger wrote:
> On Tue, Dec 13, 2011 at 1:10 PM, Matthias Rieber <sup...@su...> wrote:
>> Hi,
>>
>> I've a strange problem with ejabberd(a jabber server written in Erlang)
>> running under the user mode linux kernel. Almost everything works as
>> expected but a certain function, pubsub/pep, doesn't work. When I run
>> the very same installation in a chroot environment on the host, it
>> behaves correctly. The UML Kernel is a vanilla 2.6.32.49. I've tried
>> different systems 32bit/64bit, they show the same behaviour.
> 
> Please define "doesn't work".

hard to describe. The jabber server receives a xml stanza, it returns a
confirmation, that it has been processed correctly. The stanza should
lead to an information storage in the mnesia database, which didn't
happen, when I run ejabberd in UML.

>> Due to the lack of any Erlang knowledge I can't check why the jabber
>> server doesn't work. Are there know issues with Erlang? Any ideas to
>> debug it without digging in the server?
> 
> Maybe Erlang makes use of a system call which is not available on UML...
> You can try strace...

I'll try that. What should I grep for in the strace log?

Matthias