2 messages, 2 authors, 2002-02-21 · open the first message on its own page
From: srinivas pulipati <hidden>
Date: 2002-02-21 08:51:24
hi all, i have ported linux-2.4.4 to my custmoboard based on mpc860. i got the bash prompt succesfully. but is is crashing sometimes and giving FPU emulation., sig:8. sometimes working perfectly. is it because of UPM programming problem or something else? thanks srinivas ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
From: Jerry Van Baren <hidden>
Date: 2002-02-21 11:57:46
98% certainty it is a memory (UPM) problem. You are probably randomly misreading an instruction as 0xFFxxxxxx which is a floating point instruction. This causes a FP emulation trap. If you look at where the trap occurred (SPR register SRR0) and look at the actual memory location in question with your debugger, you probably will not find a FP instruction in memory, which means it was misread. gvb At 02:21 PM 2/21/2002 +0530, srinivas pulipati wrote:
hi all, i have ported linux-2.4.4 to my custmoboard based on mpc860. i got the bash prompt succesfully. but is is crashing sometimes and giving FPU emulation., sig:8. sometimes working perfectly. is it because of UPM programming problem or something else? thanks srinivas
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/