From owner-freebsd-stable  Mon Sep 17 12:52:59 2001
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Date: Mon, 17 Sep 2001 20:52:53 +0100 (BST)
From: "Dr J.A.C. Stenton" <jacs@hermes.cam.ac.uk>
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Subject: Re: 4.4-Stable Hangs while booting GENERIC Kernel
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With boot -v the kernel gets as far as

isa_probe_children: Probing PnP Devices

I've compiled and run a kernel with the DDB option.
On the third attempt I got lucky and managed to get into do a trace. I
didn't bother to write down the enty points etc


Debugger()
scgetc
atkbd_int
atkbd_isa_int
Xresume1()
----Interput, esp= etc
doreti_next
mi_startup
begin ()


I ran continue a few times in the debugger and the  kernel seemed to be
looping around doreti_next with the occational call to vec1.

Any ideas on where to go from here.

Chris

:I've just updated my 4.3-stable machine to 4.4-STABLE today. I have done
a
:complete
:
:
:make buildworld
:make buildkernel KERNCONF=GENERIC
:make installkernel KERNCONF=GENERIC
:shutdown
:make installworld
:mergemaster
:reboot
:
:When it reboots it hangs after giving out the message
:
:ppi0:<Parallel I/O> on ppbus0
:
:
:Now at this stage I would expect it to come up with "waiting for SCSI
:devices to settle". I am using an ASUS P2B-S with onboard SCSI.
:
:
:Any  ideas or what I should do to get more diagnostic info. (Nothing has
:been written to any log files)
:
:I can reboot the system with the old kernel which I made about 3 months
:ago.
:
:Chris

    If you could compile up a custom kernel with the following options:

    options         DDB

    And then when it hangs try doing a CTL-ALT-ESC.  If you get the ddb>
    prompt, do a 'trace'.

						-Matt





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