Hello, Kernel is sending signal 8 to itself. There is no stack trace (653A7428 ???). Any pointers I can debug this from NIP, MSR values. This is running on ppc 8xx, with rtai. This message is after Linux boot, my application is initializing. DSP passed version check. PCB: params lc 1 br 1 lm 0 dm 0 nf 3 Oops: Kernel Mode Software FPU Emulation, sig: 8 NIP: C4842F30 XER: C0000D1C LR: C4842F30 SP: C0A317D0 REGS: c0a31720 TRAP: 1000 MSR: 0000b032 EE: 1 PR: 0 FP: 1 ME: 1 IR/DR: 11 TASK = c08c2000[111] 'ocr' Last syscall: 4 last math 00000000 last altivec 00000000 GPR00: 1005BDB0 C0A317D0 00000000 7F5FFDCC 7F5FFC70 00000000 10075D30 100325A4 GPR08: 00009032 008C3E80 00000000 C0002838 C0887680 00000003 00000002 C484A4D4 GPR16: 00000000 C4840000 C4858870 00009032 C48421C8 0000B032 31363B64 00000000 GPR24: C4837A28 8000BE27 55055493 292C3332 00000500 00656570 726F6D5F 00000000 Call backtrace: 653A7428 Usman __________________________________________________ Do you Yahoo!? HotJobs - Search new jobs daily now http://hotjobs.yahoo.com/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/