Date: Mon, 24 Mar 2008 23:31:17 +0200 (EET) From: Mihail Vovk <mich@kievnet.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/122058: Panic on em1: taskq Message-ID: <200803242131.m2OLVH63024996@as3.kievnet.com> Resent-Message-ID: <200803242200.m2OM08Oq054975@freefall.freebsd.org>
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>Number: 122058
>Category: kern
>Synopsis: Panic on em1: taskq
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Mar 24 22:00:07 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Mihail Vovk
>Release: FreeBSD 7.0-RELEASE i386
>Organization:
ISP Kievskie Seti
>Environment:
FreeBSD as4.kievnet.com 7.0-RELEASE FreeBSD 7.0-RELEASE #2: Sun Mar 23 23:35:08 EET 2008 root@as4.kievnet.com:/usr/obj/usr/src/sys/AS4 i386
>Description:
I use FreeBSD as SOFT-router with: ipfw for firewall and ipnat for nat.
It is just kernel panic at any time, also without big load of the router.
My kernel specific options for ipfw (without IPDIVERT was the same picture).
options HZ=4000
options IPFIREWALL
options IPFIREWALL_DEFAULT_TO_ACCEPT
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=100
options IPFIREWALL_FORWARD
options IPDIVERT
device vlan
I have also 2 same server with configuration:
- motherboard P5K-VM Asus
- CPU Core(TM)2 Duo CPU E6850 @ 3.00GHz (3005.57-MHz 686-class CPU)
First server have 1Gb memory with bus 800, second 2Gb with bus 1066.
First server works great and without any problems. Second servers have kernel panic 10 time per evening.
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
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This GDB was configured as "i386-marcel-freebsd".
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc52a392b
stack pointer = 0x28:0xe5301864
frame pointer = 0x28:0xe53018e0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 22 (em1 taskq)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 3h33m47s
Physical memory: 2029 MB
Dumping 231 MB: 216 200 184 168 152 136 120 104 88 72 56 40 24 8
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb)
(kgdb) backtrace
#0 doadump () at pcpu.h:195
#1 0xc0518a87 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc0518d49 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3 0xc0744bac in trap_fatal (frame=0xe5301824, eva=4) at /usr/src/sys/i386/i386/trap.c:899
#4 0xc0744e10 in trap_pfault (frame=0xe5301824, usermode=0, eva=4) at /usr/src/sys/i386/i386/trap.c:812
#5 0xc0745792 in trap (frame=0xe5301824) at /usr/src/sys/i386/i386/trap.c:490
#6 0xc072c11b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7 0xc52a392b in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb)
Dump header from device /dev/ad6s1b
Architecture: i386
Architecture Version: 2
Dump Length: 243109888B (231 MB)
Blocksize: 512
Dumptime: Mon Mar 24 17:51:56 2008
Hostname: as4.kievnet.com
Magic: FreeBSD Kernel Dump
Version String: FreeBSD 7.0-RELEASE #2: Sun Mar 23 23:35:08 EET 2008
root@as4.kievnet.com:/usr/obj/usr/src/sys/AS4
Panic String: page fault
Dump Parity: 1125837881
Bounds: 9
Dump Status: good
kldstat
Id Refs Address Size Name
1 4 0xc0400000 499aa8 kernel
2 1 0xc089a000 6a32c acpi.ko
3 1 0xc4073000 36000 ipl.ko
>How-To-Repeat:
Use 1066-memory DDR2 memory chips instead with lower bus.
>Fix:
change DDR2-1066 to something early manufactured
>Release-Note:
>Audit-Trail:
>Unformatted:
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