Date: Mon, 8 Mar 1999 20:23:26 -0800 (PST) From: Jaye Mathisen <mrcpu@internetcds.com> To: hackers@freebsd.org Subject: Crash with ICMP bandwidth limiter. Message-ID: <Pine.BSF.4.05.9903082018550.28957-100000@schizo.cdsnet.net>
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Not exactly sure what happened. I started getting a truckload of warnings
from syslog about ICMP responses, which was fine.
Then I stopped the program that was creating them, and about 2 seconds
later, I got a panic.
I include the kernel backtrace:
Any ideas?
(kgdb) quit
router4# !!
gdb -k kernel.4 vmcore.4
GDB is free software and you are welcome to distribute copies of it
under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.16 (i386-unknown-freebsd),
Copyright 1996 Free Software Foundation, Inc...
IdlePTD 3268608
initial pcb at 270300
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x10
fault code = supervisor write, page not present
instruction pointer = 0x8:0xf02429bd
stack pointer = 0x10:0xf025bdcc
frame pointer = 0x10:0xf025bde4
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 = Idle
interrupt mask =
trap number = 12
panic: page fault
syncing disks... 1 1 done
dumping to dev 1, offset 273184
dump 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111
110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90
89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15
14 13 12 11 10 9 8 7 6 5 4 3 2 1
---
#0 boot (howto=256) at ../../kern/kern_shutdown.c:285
285 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:285
#1 0xf0131a84 in at_shutdown (
function=0xf02526ff <__set_sysinit_set_sym_memdev_sys_init+1115>,
arg=0x0,
queue=12) at ../../kern/kern_shutdown.c:446
#2 0xf01fccf5 in trap_fatal (frame=0xf025bd90, eva=16)
at ../../i386/i386/trap.c:942
#3 0xf01fc9d3 in trap_pfault (frame=0xf025bd90, usermode=0, eva=16)
at ../../i386/i386/trap.c:835
#4 0xf01fc64a in trap (frame={tf_es = -256180208, tf_ds = -256573424,
tf_edi = -256163840, tf_esi = 0, tf_ebp = -265962012,
tf_isp = -265962056, tf_ebx = -265961860, tf_edx = 0,
tf_ecx = 920951465, tf_eax = 0, tf_trapno = 12, tf_err = 2,
tf_eip = -266065475, tf_cs = 8, tf_eflags = 66118, tf_esp =
-265961860,
tf_ss = 0}) at ../../i386/i386/trap.c:437
#5 0xf02429bd in etp_multioutput ()
#6 0xf017c590 in ip_output (m0=0xf0754c80, opt=0x0, ro=0xf025be78,
flags=0,
imo=0x0) at ../../netinet/ip_output.c:608
#7 0xf0178854 in icmp_send (m=0xf0754c80, opts=0x0)
at ../../netinet/ip_icmp.c:675
#8 0xf01787e7 in icmp_reflect (m=0xf0754c80) at
../../netinet/ip_icmp.c:638
#9 0xf0178120 in icmp_error (n=0xf075d500, type=3, code=3, dest=0,
destifp=0x0) at ../../netinet/ip_icmp.c:200
#10 0xf0184d08 in udp_input (m=0xf075d500, iphlen=20)
---Type <return> to continue, or q <return> to quit---
at ../../netinet/udp_usrreq.c:304
#11 0xf01792bf in ip_input (m=0xf075d500) at ../../netinet/ip_input.c:693
#12 0xf0179337 in ipintr () at ../../netinet/ip_input.c:720
(kgdb)
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