Date: Sat, 13 Dec 2003 23:50:17 -0500 From: Jaime <jaime@snowmoon.com> To: freebsd-questions@freebsd.org Subject: Page faults every few days Message-ID: <037834AE-2DF1-11D8-AD0A-000393193538@snowmoon.com>
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I have a server that has been experiencing kernel panics every few
weeks for months. Lately, it seems to happen anywhere from once every
two weeks up to 3 times in the same week. It is always a page fault.
I've replaced the drive with the swap partition on it, the RAM, the
mother board, the IDE cable, the IDE controller (on that mother board),
the CPU, and a few other parts in the last 12 months.
I *think* that these page faults have been happening since before the
most current cvsup/make-world process, but I can't be 100% certain that
more than one happened. I've removed the vinum RAID-5 system that used
to manage /home, but that didn't help the stability at all. (Though it
made rebooting a lot quicker and less prone to failure.)
I'm running out of ideas. What information I do have is listed below.
Any help would be appreciated. I don't even know how to do any useful
diagnostics in order to isolate the problem.
Thanks in advance,
Jaime
zeus# uname -a
FreeBSD zeus.cairodurham.org 4.9-PRERELEASE FreeBSD 4.9-PRERELEASE #9:
Tue Aug 26 14:01:09 EDT 2003
jkikpole@zeus.cairodurham.org:/usr/obj/usr/src/sys/ZEUS i386
zeus# pwd
/usr/local/crash
zeus# whoami
root
zeus# ls -l
total 1585106
-rw-r--r-- 1 root wheel 2 Dec 9 09:11 bounds
-rw-r--r-- 1 root wheel 2324353 Nov 12 08:01 kernel.0
-rw-r--r-- 1 root wheel 2324353 Nov 12 15:05 kernel.1
-rw-r--r-- 1 root wheel 2324353 Nov 18 11:54 kernel.2
-rw-r--r-- 1 root wheel 2324353 Dec 2 10:22 kernel.3
-rw-r--r-- 1 root wheel 2324353 Dec 5 07:35 kernel.4
-rw-r--r-- 1 root wheel 2324353 Dec 9 09:11 kernel.5
-rw------- 1 root wheel 268369920 Nov 12 08:01 vmcore.0
-rw------- 1 root wheel 268369920 Nov 12 15:05 vmcore.1
-rw------- 1 root wheel 268369920 Nov 18 11:54 vmcore.2
-rw------- 1 root wheel 268369920 Dec 2 10:22 vmcore.3
-rw------- 1 root wheel 268369920 Dec 5 07:35 vmcore.4
-rw------- 1 root wheel 268369920 Dec 9 09:11 vmcore.5
zeus# gdb -k kernel.0 vmcore.0
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or 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.
This GDB was configured as "i386-unknown-freebsd"...
(no debugging symbols found)...
IdlePTD at phsyical address 0x0036f000
initial pcb at physical address 0x002dc240
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x13
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc022cb68
stack pointer = 0x10:0xcca0fe48
frame pointer = 0x10:0xcca0fe50
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 = 91607 (perl5.00503)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 54 1
done
Uptime: 2d20h1m1s
dumping to dev #ad/0x20001, offset 1572992
dump ata0: resetting devices .. done
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
---
#0 0xc016b1ba in dumpsys ()
(kgdb) quit
zeus# gdb -k kernel.1 vmcore.1
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or 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.
This GDB was configured as "i386-unknown-freebsd"...(no debugging
symbols found)...
IdlePTD at phsyical address 0x0036f000
initial pcb at physical address 0x002dc240
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x13
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc022cb68
stack pointer = 0x10:0xcca37e48
frame pointer = 0x10:0xcca37e50
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 = 16463 (perl5.00503)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 52 1
done
Uptime: 7h1m56s
dumping to dev #ad/0x20001, offset 1572992
dump ata0: resetting devices .. done
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
---
#0 0xc016b1ba in dumpsys ()
(kgdb) quit
zeus# gdb -k kernel.2 vmcore.2
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or 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.
This GDB was configured as "i386-unknown-freebsd"...(no debugging
symbols found)...
IdlePTD at phsyical address 0x0036f000
initial pcb at physical address 0x002dc240
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x13
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc022cb68
stack pointer = 0x10:0xccef1e48
frame pointer = 0x10:0xccef1e50
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 = 67351 (perl5.00503)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 41
done
Uptime: 5d20h45m52s
dumping to dev #ad/0x20001, offset 1572992
dump ata0: resetting devices .. done
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
---
#0 0xc016b1ba in dumpsys ()
(kgdb) quit
zeus# gdb -k kernel.3 vmcore.3
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or 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.
This GDB was configured as "i386-unknown-freebsd"...(no debugging
symbols found)...
IdlePTD at phsyical address 0x0036f000
initial pcb at physical address 0x002dc240
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xb00036
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc022cb68
stack pointer = 0x10:0xcc7dee48
frame pointer = 0x10:0xcc7dee50
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 = 93374 (perl5.00503)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 65
done
Uptime: 13d22h25m47s
dumping to dev #ad/0x20001, offset 1572992
dump ata0: resetting devices .. done
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
---
#0 0xc016b1ba in dumpsys ()
(kgdb) quit
zeus# gdb -k kernel.4 vmcore.4
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or 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.
This GDB was configured as "i386-unknown-freebsd"...(no debugging
symbols found)...
IdlePTD at phsyical address 0x0036f000
initial pcb at physical address 0x002dc240
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xe4000113
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc022cb68
stack pointer = 0x10:0xcc9d4e48
frame pointer = 0x10:0xcc9d4e50
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 = 19861 (perl5.00503)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 35 4 1
done
Uptime: 2d21h11m34s
dumping to dev #ad/0x20001, offset 1572992
dump ata0: resetting devices .. done
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
---
#0 0xc016b1ba in dumpsys ()
(kgdb) quit
zeus# gdb -k kernel.5 vmcore.5
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or 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.
This GDB was configured as "i386-unknown-freebsd"...(no debugging
symbols found)...
IdlePTD at phsyical address 0x0036f000
initial pcb at physical address 0x002dc240
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x13
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc022cb68
stack pointer = 0x10:0xccc10e48
frame pointer = 0x10:0xccc10e50
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 = 26642 (perl5.00503)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 55
done
Uptime: 4d1h33m35s
dumping to dev #ad/0x20001, offset 1572992
dump ata0: resetting devices .. done
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
---
#0 0xc016b1ba in dumpsys ()
(kgdb) quit
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