I had two systems reboot at nearly the same time. (30 seconds apart), and
are completely unrelated.
One system was running 2.2.8, and my core file presents me with this:
su-2.02# gdb -k
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.
(kgdb) exec-file kernel.0
(kgdb) symbol-file kernel.0.debug
Reading symbols from kernel.0.debug...done.
(kgdb) core-file vmcore.0
IdlePTD 24a000
current pcb at 202bfc
#0 0x14 in ?? ()
(kgdb) bt
#0 0x14 in ?? ()
#1 0x34000004 in ?? ()
Cannot access memory at address 0x7205c76a.
Were things just trashed, or am I doing something wrong?
The other system was running -current, and gives me:
su-2.02# gdb -k
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.
(kgdb) exec-file kernel.2
(kgdb) symbol-file kernel.2.debug
Reading symbols from kernel.2.debug...done.
(kgdb) core-file vmcore.2
IdlePTD 3096576
initial pcb at 27ea40
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xdeadc0de
fault code = supervisor read, page not present
instruction pointer = 0x8:0xdeadc0de
stack pointer = 0x10:0xcb4adec0
frame pointer = 0x10:0xcb4adefc
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 = 40969 (eggdrop)
interrupt mask =
trap number = 12
panic: page fault
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xdeadc126
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc018e3d8
stack pointer = 0x10:0xcb4ad91c
frame pointer = 0x10:0xcb4ad93c
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 = 40969 (eggdrop)
interrupt mask =
trap number = 12
panic: page fault
dumping to dev 20001, offset 467137
dump 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238
237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219
218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200
199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181
180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162
161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143
142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124
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=260) at ../../kern/kern_shutdown.c:288
288 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=260) at ../../kern/kern_shutdown.c:288
#1 0xc0145755 in panic () at ../../kern/kern_shutdown.c:450
#2 0xc020e9e2 in trap_fatal (frame=0xcb4ad8dc, eva=3735929126)
at ../../i386/i386/trap.c:917
#3 0xc020e695 in trap_pfault (frame=0xcb4ad8dc, usermode=0, eva=3735929126)
at ../../i386/i386/trap.c:810
#4 0xc020e2d7 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi =
0,
tf_esi = 0, tf_ebp = -884287172, tf_isp = -884287224, tf_ebx = 16384,
tf_edx = -559038242, tf_ecx = -1059309536, tf_eax = -1053816960,
tf_trapno = 12, tf_err = 0, tf_eip = -1072110632, tf_cs = 8,
tf_eflags = 66182, tf_esp = -1062703744, tf_ss = -911937724})
at ../../i386/i386/trap.c:436
(kgdb)
Not exactly a lot to go on... Mean anything to anyone? Any more info I can
provide?
Kevin
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