Messages in this thread | | | Date | Mon, 08 Nov 2004 11:42:03 -0500 | From | Richard Brunelle <> | Subject | Calibrating delay crash |
| |
(please put me in CC when replying)
I'm having trouble booting a PentiumMMX @ 266 MHz board with 64 Mbytes of RAM. The kernel crashes while in the main.c/calibrate_delay function. It never boot, sometimes it fails and reboot, sometimes a page fault occured. I tried with the kernels 2.4.21, 2.4.26 and 2.6.7 with the same results.
I notice that if I return before the calibration loop, the system boots fine. This has been tried only for testing.
void __init calibrate_delay(void) { unsigned long ticks, loopbit; int lps_precision = LPS_PREC;
loops_per_jiffy = (1<<12);
return; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
printk("Calibrating delay loop... "); ....
I look in the archive and one post points to a memory problem, I ran memtest86 with no error found. Now I wonder what can cause this problem, is it a hardware issue/timing? What can I do to investigate more? How the calibrate_delay loop can crash the kernel?
Thanks.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |