Date: Wed, 10 May 2006 16:54:23 GMT From: Nick Wood <nwood@prohosting.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/97095: page fault on 6.1-RC2 ip_ctloutput Message-ID: <200605101654.k4AGsNw6056717@www.freebsd.org> Resent-Message-ID: <200605101700.k4AH0gFY054759@freefall.freebsd.org>
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>Number: 97095
>Category: kern
>Synopsis: page fault on 6.1-RC2 ip_ctloutput
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed May 10 17:00:42 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Nick Wood
>Release: 6.1-RC2
>Organization:
ProHosting
>Environment:
FreeBSD mail-da-5.... 6.1-RC2 FreeBSD 6.1-RC2 #0: Fri May 5 07:27:28 MDT 2006 nwood@mail-da-5....:/usr/obj/usr/src/sys/LOCAL i386
>Description:
Several busy qmail servers are crashing on a regular basis - 1 to 3 times a day.
The running process has usually been tcpserver from the ucspi-tcp-0.88_2 port. It has been cmd5checkpw (pop authentication) once.
Differences from GENERIC
----------------------
#cpu I486_CPU
#cpu I586_CPU
cpu I686_CPU
ident MAIL_6_1
# PH Options
options SUIDDIR
options QUOTA
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=10
options NMBCLUSTERS=65536
options KVA_PAGES="640"
options VM_KMEM_SIZE_MAX=(512*1048576)
options VM_KMEM_SIZE_SCALE=2
options ASR_COMPAT
options SHMMAXPGS=131072
options SEMMNI=128
options SEMMNS=512
options SEMUME=100
options SEMMNU=256
----------------------
Backtrace
----------------------
(kgdb) bt
#0 doadump () at pcpu.h:165
#1 0x6064e239 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:402
#2 0x6064e4d0 in panic (fmt=0x60894857 "%s") at /usr/src/sys/kern/kern_shutdown.c:558
#3 0x608496d4 in trap_fatal (frame=0x9c8f7ad8, eva=172) at /usr/src/sys/i386/i386/trap.c:836
#4 0x6084943b in trap_pfault (frame=0x9c8f7ad8, usermode=0, eva=172) at /usr/src/sys/i386/i386/trap.c:744
#5 0x60849079 in trap (frame=
{tf_fs = 1619263496, tf_es = 1627652136, tf_ds = 40, tf_edi = 55, tf_esi = 0, tf_ebp = -1668318412, tf_isp = -1668318460, tf_ebx = -1668318064, tf_edx = 1738397568, tf_ecx = 0, tf_eax = 4, tf_trapno = 12, tf_err = 2, tf_eip = 1617891744, tf_cs = 32, tf_eflags = 66182, tf_esp = 1835631104, tf_ss = 0})
at /usr/src/sys/i386/i386/trap.c:434
#6 0x6083890a in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7 0x606f11a0 in ip_ctloutput (so=0x4, sopt=0x9c8f7c90) at atomic.h:146
#8 0x6070123b in tcp_ctloutput (so=0x66b34858, sopt=0x9c8f7c90) at /usr/src/sys/netinet/tcp_usrreq.c:1038
#9 0x60687c04 in sosetopt (so=0x66b34858, sopt=0x9c8f7c90) at /usr/src/sys/kern/uipc_socket.c:1560
#10 0x6068ce95 in kern_setsockopt (td=0x679dd780, s=0, level=4, name=4, val=0x679dd780, valseg=UIO_USERSPACE,
valsize=0) at /usr/src/sys/kern/uipc_syscalls.c:1351
#11 0x6068cdc6 in setsockopt (td=0x679dd780, uap=0x4) at /usr/src/sys/kern/uipc_syscalls.c:1307
#12 0x608499eb in syscall (frame=
{tf_fs = 1606352955, tf_es = 59, tf_ds = 1606352955, tf_edi = 1606413432, tf_esi = 3, tf_ebp = 1606413224, tf_isp = -1668317852, tf_ebx = 0, tf_edx = 2, tf_ecx = 134545464, tf_eax = 105, tf_trapno = 12, tf_err = 2, tf_eip = 672065711, tf_cs = 51, tf_eflags = 514, tf_esp = 1606413180, tf_ss = 59})
at /usr/src/sys/i386/i386/trap.c:981
#13 0x6083895f in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:200
#14 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
----------------------
>How-To-Repeat:
Run a busy qmail server on FreeBSD 6.1...
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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