Bug 30125

Summary:	[bootloader] btx/bootloader dumps very often if serial remote console enabled
Product:	Base System	Reporter:	Oliver Blasnik <o.blasnik>
Component:	kern	Assignee:	Remko Lodder <remko>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	Unspecified
Hardware:	Any
OS:	Any

Description Oliver Blasnik 2001-08-27 12:20:00 UTC

While booting with serial remote console enabled (Intel ISP2150) the bootloader refuses to work very often (before and while loading) and dumps:

FreeBSD/i386 bootstrap loader, Revision 0.8
(murray@scrub.lab.nuxi.com, Thu Aug 16 04:39:51 GMT 2001)
[....]
Loading Mfsroot...
\
int=00000006  err=00000000  efl=00010202  eip=0f00ffff
eax=00000000  ebx=840fa6f3  ecx=0002b680  edx=18550000
esi=000000ff  edi=00021680  ebp=ff0cbd83  esp=000035e4
cs=002b  ds=0033  es=0033    fs=0033  gs=0033  ss=0033
cs:eip=ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff
ss:esp=84 af 00 00 00 c7 45 d0-00 00 00 00 c7 45 d4 00
BTX halted

This is possibly related to pr21559 and not fixed now (after ONE YEAR).
As far as I am using pxeboot and a large (20M) /mfsroot, it's nearly impossible to get a system booting up. I tried the loaders from 4.2, 4.3 and 4.4rc1.

Fix: 

Disable serial remote console.
How-To-Repeat: Enable serial remote console and boot.

Comment 1 Remko Lodder freebsd_committer

2006-12-30 16:58:06 UTC

State Changed
From-To: open->feedback

hello is this still relevant for recent freebsd releases?

Comment 2 Remko Lodder freebsd_committer

2006-12-30 16:58:06 UTC

Responsible Changed
From-To: freebsd-bugs->remko

grab the pr

Comment 3 Remko Lodder freebsd_committer

2006-12-30 17:00:36 UTC

State Changed
From-To: feedback->closed

The email address of the submitter is no longer active, closing the 
ticket, if you have feedback which requires this pr to be reopened, 
please contact me.