Issue in lwip

[Ivan Loskutov]

Hello Sebastian,

Thank you for supporting.
Yes, it was not a good example. In this case I have another error.
I try to reproduce the error in select.

--
Ivan Loskutov




2012/10/25 Sebastian Sumpf <Sebastian.Sumpf at ...1...>

> Hello Ivan,
>
> On 10/25/2012 10:14 AM, Ivan Loskutov wrote:
> > Hello,
> >
> > I have an issue in lwip again. I ported the xmlrpc++ library to
> > genode but simple test is failed.  I have messages in log:
> >
> > no RM attachment (READ pf_addr=28 pf_ip=1183823 from 2df000)
> > invalid signal-context capability
> > virtual void Genode::Pager_activation_base::entry(): Could not resolve
> > pf=28 ip=1183823
> >
> > I tried to trace the error and found then the issue occurred in select
> > function in lwip. Xmlrpc++ server does this call and sometime
> > occurred this error. The error occurred in select function and control
> > doesn't return to server code. The same code on host worked without
> > issues. Sample code is in
> > commit
> https://github.com/Ksys-labs/genode/commit/f567619f5f0a50e7eed74e9565ddae1320a016a0
> > I ran the server in qemu and client from xmlrpc++ on my host.
> > Any ideas?
>
> I've tried your test and could reproduce the error, it seems not to
> occur in LWIP but rather in 'stdcxx.lib.so' (I attached the backtrace,
> you can observe that eax is 0x28). The last XmlRpc functions called are:
> 'XmlRpc::XmlRpcServerConnection::parseRequest' and the
> 'XmlRpc::XmlRpcValue::operator='. Maybe the provided data is corrupt.
> Unfortunately I cannot investigate this further right now.
>
> Greetings,
>
> Sebastian
>
>
>
> --
> Sebastian Sumpf
> Genode Labs
>
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