Re: L4::Pistachio 0.3 and Bochs

[Luke Hart]

Hi,

All this talk of Bochs and Pistachio has reminded me that I don't seem 
to be able to run the pingpong benchmarking app under Bochs (both from 
the demodisk image and self-compiled ones). L4 boots as far as offering 
the choice of which form of IPC to test and then once one is select 
reports "KD# kmem_alloc: out of kernel memory". The version of Bochs I 
am running is the latest from CVS (but I have tried others) with the 
configure command line Ludovic specified in his e-mail. The same 
behaviour does not happen when the same images are run on real hardware.

To try and debug this I enabled DEBUG_KMEM  and CONFIG_VERBOSE_INIT (I 
also added some debugging of my own) and attempted to run pingpong under 
bochs, which produced the attached log. From the log it does seem to be 
failing to find any memory (it doesn't fail when I increase the bootmem 
in the .lds file, but exceptions instead). By putting in trace 
statements it seems that the  problem is occuring in the first 
L4_ThreadControl call.

The attached log also include a dump of the KIP. Has anyone got any 
ideas what could be causing this? Just for information i'm running 
gcc3.3.2 and glibc2.3.2.

Thanks for any help,
   Luke

kmem.log.bz2
Description: Binary data