Date: Sat, 20 Nov 2004 17:22:51 GMT From: Normal User <freebsd@falx.port5.com> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/74171: Fatal trap 12: page fault while in kernel mode Message-ID: <200411201722.iAKHMpQc089672@www.freebsd.org> Resent-Message-ID: <200411201730.iAKHUQ3F012684@freefall.freebsd.org>
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>Number: 74171
>Category: misc
>Synopsis: Fatal trap 12: page fault while in kernel mode
>Confidential: no
>Severity: critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Nov 20 17:30:25 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Normal User
>Release: 5.3-RELEASE
>Organization:
>Environment:
FreeBSD 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov 5 04:19:18 UTC 2004 root@harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
>Description:
My test machine has an internal modem which uses the comms/ltmdm driver (Lucent WinModem), whenever someone calls me the system inmediately crashes badly. I've been tracking 4-STABLE in this machine for years without any problem. I did a fresh install of 5.3-RELEASE last week.
The error I receive is:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x138
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc183300d
stack pointer = 0x10:0xcc721c80
frame pointer = 0x10:0xcc721c90
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL0, pres1, def32 1, gran 1
procesor eflags = resume, IOPL = 0
current process = 35 (swi5: tty:ltmdm++)
trap number = 12
panic: page fault
Uptime: 3h9m23s
dmesg reports
ltmdm0: <Lucent Winmodem> port 0xe800-0xe8ff,0xec00-0xec07 mem 0xdfffff00-0xdfffffff irq 19 at device 8.0 on pci0
ltmdm0: [GIANT-LOCKED]
ltmdm0: type Virtual 16550A
>How-To-Repeat:
just dial my phone number...
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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