Hello, I am using ftp://ftp.denx.de/pub/linux/linux-2.6.14.tar.bz2 Kernelsources, xenomai-2.2.0. My hardware is Dave PPChameleon (PPC404EP). I have built and installed kernel and xenomai successfully. When I run xeno-test I end up with: Oops: Exception in kernel mode, sig: 4 [#1] NIP: C016772C LR: C003C7B0 SP: C1A19E50 REGS: c1a19da0 TRAP: 0700 Not tainted MSR: 0002b030 EE: 1 PR: 0 FP: 1 ME: 1 IR/DR: 11 TASK = c1a10b60[500] 'sampling-497' THREAD: c1a18000 Last syscall: 50332203 GPR00: C1A10D48 C1A19E50 C1A10B60 C1A10D48 C0005940 0002B030 0007C45F C1A10B5F GPR08: 00000001 00400000 00000001 C0260040 00000000 10020184 01FEF400 00000000 GPR16: 00000001 FFFFFFFF 00000000 00000000 0FFAC420 00000000 C1A19F50 C021C420 GPR24: 0000000E C0250000 C0260000 00000000 00000018 C0261350 C0362768 C0261380 Call trace: [c00421fc] [c0042668] [c0043530] [c0035708] [c000b418] [c0002bf4] Attached is the full log. Cheers. -- Dirk Eibach Guntermann & Drunck Systementwicklung GmbH F & E Dortmunder Str. 4a, D-57234 Wilnsdorf Tel.: +49 (0) 2739 8901 100, Fax.: +49 (0) 2739 8901 120