Malloc / free ansd rump_fs ->Slab-backend exhausted

Sebastian Sumpf Sebastian.Sumpf at ...1...
Mon Aug 11 21:57:15 CEST 2014

Hi Wolfgang,

On 08/11/2014 04:12 PM, w_schmidt at ...181... wrote:
> Hi,
> further information:
> this seems to be happen only if rump_fs has a larger quota – the file
> can be larger if rump_fs has a smaller quota. (memory tests of the
> system have shown no errors so RAM should be okay)

this is indeed very strange. I hope you have a Genode version where
there is no Slab-Backend allocator, have a look at
'include/util/allocator_fap.h" in the dde_rump repository, there should
only be a PERR message with the slab warning left. Otherwise, our
current "Rump kernels" version is not up-to-date and they have fixed
some serious memory issues there (especially with the paging daemon).
If you have a current Genode version, then there is something wrong with
the memory accounting, which leads Rump to think it has got more memory
than the Genode quota actually suggests.


Sebastian Sumpf
Genode Labs ·

Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

More information about the users mailing list