Date: Wed, 9 Dec 1998 14:46:58 +0800 (CST) From: foxfair <foxfair@mail.progolf2.com.tw> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/9026: NIC driver vr0 cuases NATD fault in kernel mode. Message-ID: <199812090646.OAA00372@mail.progolf2.com.tw>
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>Number: 9026
>Category: kern
>Synopsis: natd
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Dec 8 22:50:01 PST 1998
>Last-Modified:
>Originator:
>Organization:
>Release: FreeBSD 2.2.8-STABLE i386
>Environment:
1) FreeBSD 2.2.8-STABLE #0: Tue Dec 8 15:55:10 CST 1998
root@mail.progolf2.com.tw:/usr/src/sys/compile/FREEBSD
2) NIC Configuration:
rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 10.10.10.254 netmask 0xffffff00 broadcast 10.10.10.255
ether 00:80:c8:95:27:a8
media: 100baseTX <full-duplex>
supported media: autoselect 100baseTX <full-duplex> 100baseTX
<half-dupl
ex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP 10baseT/UTP <half-duplex>
vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 210.61.29.13 netmask 0xfffffff8 broadcast 210.61.29.15
ether 00:c0:26:00:1a:2c
media: 100baseTX <full-duplex>
supported media: autoselect 100baseTX <full-duplex> 100baseTX
<half-dupl
ex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP 10baseT/UTP <half-duplex>
natd running via vr0, which is a beta-testing NIC driver.
>Description:
When I use this device driver to run NATD , it will cause a kernel fault
and reboot thousands times. Especially connect to another WWW server,
http://kids.progolf2.com.tw/, which is running RedHat+Apache+SSH+Postgres+PHP3.
About 5-8 access time through internal network(ip address 10.10.x.x) to
WWW, it will crash the natd server. The following is crash message:
-=-=-=-= Start Here. =-=-=-=-=-=-=
mail: /kernel: pid 123(natd), uid 0: exited on signal 11.
((After restart natd process, still cause a fatal error, see below))
Fatal Trap 12:Page fault while in kernel mode.
fault virtual address = 0xf06db1de
fault code = supervisor write, page not present.
instruction poiter = 0x8:0xf0152e0b
stack pointer = 0x10:0xefbffcb0
frame pointer = 0x10:0xefbffcbc
code segment = base 0x0, limit 0xffff, type 0x1b
= DPL 0, pres 1, def32 1,gran 1
processor eflags = interrupt enabled, resume, IOPL=0
current process = 123(natd)
interrupt mast = net
panic:page fault
>How-To-Repeat:
Try to run NATD in the above environment.
>Fix:
>Audit-Trail:
>Unformatted:
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