Date: Fri, 16 Aug 2002 13:23:45 -0700 (PDT) From: Jin Guojun (DSD staff) <jin@pesto.lbl.gov> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/41720: if_nge_load=YES make system not bootable Message-ID: <200208162023.g7GKNjLV015693@pesto.lbl.gov>
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>Number: 41720
>Category: kern
>Synopsis: if_nge_load=YES make system not bootable
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Aug 16 13:30:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Jin Guojun (DSD staff)
>Release: FreeBSD 4.6-RELEASE i386
>Organization:
>Environment:
4.6 and 4.6.2-RELEASE
Tested in different motherboard, so it is not hardware related.
Also, system panic regardless if nge related hardware is installed.
Tested same hardware under 4.5-RELEASE, and had no problem.
So, the problem is in if_nge.ko after 4.5-RELEASE.
>Description:
Once if_nge_load=YES is placed in /boot/loader.conf,
the system will be panic during the boot time regardless if
any nge hardware is installed.
In 4.6-RELEASE, it says page is not present and current
process is ifconfig. The only place can invoke ifconfig
is the "ifconfig -l" if no NIC is installed.
However, boot system without if_nge_load=YES enabled in
/boot/loader.conf, then kldload if_nge.ko, then do
ifconfig -l, system will not panic.
So, it looks like that if_nge.ko screws up the kernel
during the boot time.
In 4.6.2-RELEASE, the panic is so fast and immediately
goes to reboot, so I do not know what is the panic message.
>How-To-Repeat:
Add if_nge_load=YES into /boot/loader.conf and reboot system.
>Fix:
Work around:
To use nge NIC, add following lines into /etc/rc.conf
ifconfig nge0 | grep status || {
ifconfig nge0 | grep status &&
ifconfig nge0 $netaddr netmask $subnetmask up
}
BTW, this also shows another problem in if_nge.ko:
if_nge.ko must be loaded twice in 4.6 and 4.6.2,
to make device driver installed. !!!
>Release-Note:
>Audit-Trail:
>Unformatted:
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