Date: Sat, 9 May 1998 12:16:58 +1000 (EST) From: Gavin Cameron <gavin@itworks.com.au> To: questions@FreeBSD.ORG Subject: comconsole - getting closer, I think, I hope Message-ID: <Pine.BSF.3.96.980509120913.11121b-100000@itw.itworks.com.au>
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Run down so far...
1) I've got 2 machines that need serial consoles
2) Serial comms works for a little while and then I get dropped into the
debugger on both
3) I don't have sc0 or vt0 in the kernel at the moment
4) If I enter cont at the debugger prompt I get
db> cont
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf01c37ee
stack pointer = 0x10:0xefbfff80
frame pointer = 0x10:0xefbfff80
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 ()
interrupt mask =
kernel: type 12 trap, code=0
Stopped at _cninit_finish+0x26: movl 0x4(%edx),%eax
db>
5) The motherboard is a Iwill P55XUB which quite happily runs FreeBSD
My problem seems to occur when the kernel probes the serial port that is
being used by the console. As soon as the port is probed I end up in the
debugger.
Any help still appreciated.
Gavin
[]------------------------------------+-------------------------------------[]
| Gavin Cameron | ITworks Consulting |
| Ph : 0418 390350 | Suite 100, 85 Grattan Street |
| Fax : +61 3 9347 6544 | Carlton, Victoria |
| Email : gavin@itworks.com.au | Australia, 3053 |
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