Date: Sun, 14 Apr 2002 20:29:49 -0700 (PDT) From: Alexandr <AVShutko@mail.khstu.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/37086: kernel trap 12 Message-ID: <200204150329.g3F3TnZ79327@freefall.freebsd.org>
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>Number: 37086
>Category: i386
>Synopsis: kernel trap 12
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Apr 14 20:30:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Alexandr
>Release: FreeBSD 4.5-RELEASE #4: Sat Apr 13 20:09:44 VLAST 2002
>Organization:
KhSTU
>Environment:
FreeBSD service.khstu.ru 4.5-RELEASE FreeBSD 4.5-RELEASE #4: Sat Apr 13 20:09:44 VLAST 2002 regressor@service.khstu.ru:/usr/src/sys/compile/SERVICE i386
>Description:
fatal trap 12: page fault while in kernel mode
mp_lock = 00000002 ; cpuid = 0 ; lapic.id = 03000000
fault virtual addr = 0xc12bd000
fault code = supervisor read, page not present
instruction pointer = 0x8 : c0272502
stack pointer = 0x10 : 0xd6ffcc30
frame pointer = 0x10 : 0xd6ffcc58
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 = (316) iserverd
interrupt mask = net <- SMP : XXX
kernel: type 12 trap, code 0
Stopped at generic_body + 0x1a : repe movsl (%esi), %es:(%edi)
----------------------------------------------------------------
>How-To-Repeat:
I dont know.... This problem appears on heavy load...
>Fix:
:(
>Release-Note:
>Audit-Trail:
>Unformatted:
>trace
generic_copy(c12bcf00, c2b447e2, 3c, c2447b0, c2b3c50) at generic_copy+0x1a
catchpacket(c2b3c500, c12bcf00, 3c, 5ea, c019bac8) at catchpacket+0x15e
bpf_mtap(c285aa00, c12bcf00) at bpf_mtap+0x58
wx_start(c285aa00, c12bcf00, c2bfadd0, c2c46500, c12bcf00) at wx_start+0x392
ip_output(c12bcf00, 0, d54cdbfc, 0, 0) at ip_output+0xbc4
udp_output(d54cdbc0, C12bcf00, c2c21f10, 0d49dba40) at udp_output+24a
udp_send(d540bf80, 0, c12bcf00, c2c21f10, 0) at udp_send+0x10
sosend(d540bf80, 0, c12bcf00, c2c21f10, 0) at sosend+0x5df
sendit(d49dba40, 1, d6fbcf08, 0, 8089d04) at sendit+0x253
sendto(d49dba40, d6fbcf80, 80888c0, bfbfe44c, 8089cd4) at sendto+0x4e
syscall2(2f,2f,2f, 8089cd4, bfbfe44c) at syscall2+0x221
Xint0x80_SYScall() at Xint0x80_SYScall+0x26
-----------------------------------------------------------------
System: i386, Intel SR1200 server, netcard: intel pro1000T,
dual PIII-1000.
------------------------------------------------------------------
System running: inn, squid, iserverd, postgresql, apache
and snort (Intrusion Detection System that use bpf)
securelevel=3, ipfw contain 108 rules
------------------------------------------------------------------
Kernel config (cuts):
makeoptions DEBUG=-g
machine i386
cpu I686_CPU
ident SERVICE
maxusers 128
options SMP
options APIC_IO
options NBUF=4096
options NMBCLUSTERS=8192
options PANIC_REBOOT_WAIT_TIME=240
options DDB
pseudo-device loop
pseudo-device ether
pseudo-device tun
pseudo-device pty
pseudo-device md
pseudo-device bpf
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_FORWARD
options IPFIREWALL_VERBOSE_LIMIT=1000
options IPDIVERT
options IPFILTER
options IPFILTER_LOG
options IPFIREWALL_DEFAULT_TO_ACCEPT
options IPSTEALTH
options RANDOM_IP_ID
options ICMP_BANDLIM
options DUMMYNET
device miibus
device fxp
device wx
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