Creating your first Genode application - Build succesful, but execution fails

[Christian Helmuth]

Sorry Wolfgang,

my last email actually missing my question :-( Please see below

On Mon, Mar 31, 2014 at 08:47:53AM +0200, Christian Helmuth wrote:
> Hello Wolfgang,
> 
> welcome to the list.
> 
> On Sun, Mar 30, 2014 at 04:06:22PM +0200, w_schmidt at ...181... wrote:
> > |int main(): --- create local services ---
> > |int main(): --- start init ---
> > |int main(): transferred 17592186044415 MB to init
> > |int main(): --- init created, waiting for exit condition ---
> > |[init] _map_local: lx_mmap failed (addr_in=0,addr_out=ffffffffffffffed/-19) 
> > overmap=0
> > |[init] C++ runtime: Genode::Rm_session::Region_conflict
> > |[init] void* abort(): abort called
> 
> This looks rather strange and if my interpretation is correct your
> Linux kernel answers an mmap request with ENODEV (-19 in the lof
> above). From the manpage of mmap:
> 
>   ERRORS
>     ...
>     ENODEV The underlying file system of the specified file does not
>            support memory mapping.
>     ...
> 
> Currently, I have no idea how this may happen. Genode creates files for
> RAM dataspaces in the directory /tmp/genode-<uid> and uses mmap to
> attach the RAM dataspaces to process address spaces. Could you please
> post the output of
> 
>   grep "/tmp" /etc/mtab
> 
> For my system it looks like
> 
>   tmpfs /tmp tmpfs rw,noatime,mode=1777 0 0
> 
> Does Genode create the /tmp/genode-<uid> directory? If yes, please
> post the contents of the directory.

-- 
Christian Helmuth
Genode Labs

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