On Mon Aug 25, 2014 at 13:04:25 +0000, Masti  Ramya Jayaram wrote:
> I am trying to run L4linux on top of fiasco/L4re using an older version from 
> the svn (for those interested, I am trying to run this on Intel SCC and 
> therefore need an old build).  I am first trying to run this on qemu and can 
> get the entire linux to boot and display a shell prompt. However, I get a 
> pagefault on trying to enter a character on the shell prompt as below:
> 
> 
> ...........
> Switching to clocksource tsc
> VFS: Mounted root (ext2 filesystem) on device 1:0.
> Doing post...
> Freeing unused kernel memory: 164k freed
> # l4linux | cpu0: utcb=0xb3000600 416
> l4linux | l4lx_thread_create: Created thread 423 (idler0) (u:b3000c00, 
> sp:006a1ff8)
> 
> l4linux | Page fault: addr = 000003f2 pc = 004f34dc (rw)
> l4linux | Page fault (non-resolved): pfa=3f2 pc=4f34dc
> ...........
> 
> I can verify that the first character typed at the prompt reaches the fiasco 
> kernel (because I can echo it). I am not sure how exactly this (tries to) 
> reach L4linux from there on.
> 
> Note that I have VGA and keyboards disabled and I am trying to use only the 
> serial line for input and output. Has anyone had similar problems before? Any 
> help on how to proceed would be great!

We need to know what's there at 0x4f34dc. Could you run "disassemble
0x4f34dc" in "gdb vmlinux". (It is good to have CONFIG_DEBUG_INFO
enabled in L4Linux for that.)



Adam
-- 
Adam                 a...@os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

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