Can't start L4Linux-2.6.18

[FERANDELLE Pascal]

In august, I tested L4Linux on PC, and everything was working fine with L4Linux-2.6.17.
Now, I get the snapshots of 20061116, and rebuild everything.
The L4Linux kernel is now 2.6.18.
The build is ok, but I can't start it under Fiasco.

Here is the log :

Welcome to Fiasco(ia32)!
DD-L4(v2)/x86 microkernel (C) 1998-2006 TU Dresden
Rev: Sat Nov 11 18:26:23 2006 compiled with gcc 3.4.6 for Intel Pentium
Performance-critical config option(s) detected:
  CONFIG_ASSEMBLER_IPC_SHORTCUT is off
  CONFIG_NDEBUG is off

Enabling special fully nested mode for PIC
Using the PIT (i8254) on IRQ 0 for scheduling
SERIAL ESC: allocated IRQ 4 for serial uart
SERIAL ESC: allocated IRQ 4 for serial uart
Not using serial hack in slow timer handler.
Absolute KIP Syscalls using: Sysenter
CPU: GenuineIntel (F:4:9:0) Model: Pentium 4E (Prescott/Nocona) at 2793 MHz

  64 Entry I TLB (4K or 4M pages)
  64 Entry D TLB (4k or 4M pages)
 12K µ-ops T Cache (8-way associative)
  16 KB L1 D Cache (8-way associative, 64 bytes per line)
1024 KB L2 U Cache (8-way associative, 64 bytes per line)

Freeing init code/data: 20480 bytes (5 pages)

SIGMA0: Hello!
...
...
l4lx    | ======> L4Linux 2.6 starting... <========
l4lx    | Linux version 2.6.18-l4 (root at PClinux) (gcc version 3.4.6) #1 Fri Dec
l4lx    :  1 18:41:42 CET 2006
l4lx    | Binary name: vmlinuz26
l4lx    | Kernel command line (7 args): earlyprintk=yes mem=64M video=l4fb load
l4lx    : _ramdisk=1 ramdisk_size=16384 root=/dev/ram l4env_rd=test-rd.rd
l4lx    | The running kernel does not have the
l4lx    |       exception_ipc
l4lx    | feature enabled!

Of course, I have the exception_ipc feature enabled in Fiasco !!!

If I rebuild L4Linux-2.6.17, with the L4Env from 20061116, and try to start it under Fiasco, there is no problem ...