>Number: 154286
>Category: kern
>Synopsis: [netgraph] [panic] 8.2-PRERELEASE panic in netgraph
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jan 25 14:20:16 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Oleg
>Release: 8.2-PRERELEASE
>Organization:
NTK
>Environment:
8.2-PRERELEASE FreeBSD 8.2-PRERELEASE #0: Fri Dec 17 14:52:43 MSK 2010
>Description:
panic occur at intervals ranging from several hours to several weeks.
A similar problem: kern/137881,kern/152893
environment:
CPU: Intel(R) Core(TM)2 Quad CPU Q8400 @ 2.66GHz (2660.01-MHz 686-class CPU)
real memory = 2147483648 (2048 MB)
avail memory = 2071199744 (1975 MB)
ACPI APIC Table: <INTEL DG43NB>
acpi0: <INTEL DP43TF> on motherboard
igb0: <Intel(R) PRO/1000 Network Connection version - 2.0.7>
igb1: <Intel(R) PRO/1000 Network Connection version - 2.0.7>
em0: <Intel(R) PRO/1000 Network Connection 7.1.8>
em0: Using an MSI interrupt
em0: [FILTER]
loader.conf:
hw.em.rxd="4096"
hw.em.txd="4096"
hw.igb.rxd="4096"
hw.igb.txd="4096"
hw.igb.lro=0
hw.igb.fc_setting=0
hw.em.rx_abs_int_delay="33"
hw.em.rx_process_limit="-1"
hw.em.enable_msix="1"
hw.em.msix_queues="2"
kern.ipc.nmbclusters="128000"
net.graph.maxdata="1024"
net.graph.maxalloc="16384"
net.isr.maxthreads=2
net.isr.numthreads=2
sysctl:
net.graph.recvspace=256000
net.graph.maxdgram=128000
net.route.netisr_maxqlen=512
net.inet.icmp.icmplim=2000
net.inet.ip.fastforwarding=1
net.inet.tcp.blackhole=2
net.inet.udp.blackhole=1
kern.ipc.somaxconn=1024
net.inet.ip.portrange.first=1024
net.inet.ip.portrange.last=65535
net.inet.ip.portrange.randomized=0
net.inet.tcp.nolocaltimewait=1
net.graph.maxdata=1024
kern.ipc.maxsockbuf=524288
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0xa1aabda0
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc08c464c
stack pointer = 0x28:0xe7f71918
frame pointer = 0x28:0xe7f7193c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 3983 (mpd5)
trap number = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
#0 0xc08e0d67 at kdb_backtrace+0x47
#1 0xc08b1e17 at panic+0x117
#2 0xc0be1af3 at trap_fatal+0x323
#3 0xc0be1fd0 at trap+0x180
#4 0xc0bc8eec at calltrap+0x6
#5 0xc08c4759 at _callout_stop_safe+0x89
#6 0xc7c37bef at ng_uncallout+0x1f
#7 0xc7d8f0a4 at ng_pppoe_disconnect+0x74
#8 0xc7c38f58 at ng_destroy_hook+0xe8
#9 0xc7c3a4a5 at ng_apply_item+0xf35
#10 0xc7c3874f at ng_snd_item+0x28f
#11 0xc7c32642 at ngc_send+0x1c2
#12 0xc0913f6a at sosend_generic+0x64a
#13 0xc091003f at sosend+0x3f
#14 0xc0917931 at kern_sendit+0x161
#15 0xc0917b61 at sendit+0xb1
#16 0xc0917c78 at sendto+0x48
#17 0xc08eca99 at syscallenter+0x329
Uptime: 3d3h21m46s
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x0
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc0bdf9ce
stack pointer = 0x28:0xe7f71758
frame pointer = 0x28:0xe7f7177c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 3983 (mpd5)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 3d3h21m46s
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: