apm weirdness on i386

[ito...@iijlab.net]

since last night or so, my desktop machine does not boot properly with
openbsd-current. it looks to be some apm issue, and apm code has some
change yesterday. backtrace (typed by hand) is attached.

K6-2 300MHz, 128M RAM, Apollo VP3 chipset, Award BIOS (says 2A5LEPA9
- is it ROM version?). The symptom happens under BIOS APM is enabled,
and disabled (both cases).

itojun

---
OpenBSD 2.6-current (GENERIC) #12: Mon Jan 31 13:53:06 JST 2000
itojun@naan:/home/itojun/OepenBSD/src/sys/arch/i386/compile/GENERIC
cpu0: AMD K6-2 ("AuthenticAMD" 586-class) 299 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,MMX
real mem = 133795840
avail mem = 119717888
using 1658 buffers containing 6791168 bytes of memory
mainbus0 (root)
bios0 a mainbus0: AT/286+(54) BIOS, date 06/29/98
apm0 at bios0kernel: page fault trap, code=0
Stopped at 0x8090: kernel: page fault trap, code=0
Stopped at _db_read_bytes+0x10: movb 0(%ecx),%al

---
_db_read_bytes
_db_get_value
_db_disasm
_db_print_loc_and_inst
_db_trap
_kdb_trap
_trap() at _trap+0x218
--- trap (number 6) ---
(null)(530e,0,e048cce8,e0256486) at 0x8090
_apm_set_ver(e07a8800,e07b67c0,e048cd58,e03399ba,1,1,0,e015346d) at _apm_est_ver+0x41
_apmattach(...)
_config_attach(...)
_config_found_sm(...)
_mainbus_attach
_config_attach
_config_rootfound
_configure
_cpu_startup

[ito...@iijlab.net]

> since last night or so, my desktop machine does not boot properly with
> openbsd-current. it looks to be some apm issue, and apm code has some
> change yesterday. backtrace (typed by hand) is attached.
>
> K6-2 300MHz, 128M RAM, Apollo VP3 chipset, Award BIOS (says 2A5LEPA9
> - is it ROM version?). The symptom happens under BIOS APM is enabled,
> and disabled (both cases).

the problem was solved (for me) by swapping /boot to the latest.
sorry for the noise.

itojun