Re: NetBSD 7.0 i386 panic during boot

[christos%zoulas.com@localhost (Christos Zoulas)]

On Oct 11, 10:27pm, mayuresh%acm.org@localhost (Mayuresh) wrote:
-- Subject: Re: NetBSD 7.0 i386 panic during boot

| On Sun, Oct 11, 2015 at 12:31:51PM -0400, Christos Zoulas wrote:
| > | RTC BIOS diagnostic error 0x80<clock_battery>
| > 
| > That means that something is wrong with the battery, it is not fatal.
| 
| This is a desktop. You mean CMOS battery or something? 6.1 was working
| fine so far on this.

Yes. Does not matter, some are spurious.

| I am trying to type out more text. (Sorry, not yet learned how to gather
| the trace.)
|
| RTC BIOS diagnostic error 0x80<clock_battery>
| mainbus0 (root)
| mainbus0: Intel MP Specification (Version 1.4) (
| uvm_fault(...,0,1)->0xe
| fatal page fault in supervisor mode
| trap type 6 code 0 ...
| curlwp...
| kernel: supervisor trap page fault, code=0
| Stopped in pid 0.1 (system) at netbsd:vmem_alloc+0x44 movl ...
| 
| > | uvm_fault(...,0,1) -> 0xe
| > 
| > This looks like a NULL pointer dereference. Do you have a backtrace?
| 
| Unfortunately the keyboard stops working when db prompt appears. So cannot
| gather complete trace.

Compile a kernel with
options DDB_ONPANIC 2
(man 4 options)

cbristos