Date: Sun, 21 Apr 2002 14:38:09 +0300 (EEST) From: Vallo Kallaste <kalts@estpak.ee> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/37311: latent bug: kernel crash in -stable, same as closed kern/35138 Message-ID: <200204211138.g3LBc9gR018562@myhakas.estpak.ee>
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>Number: 37311
>Category: kern
>Synopsis: latent bug: kernel crash in -stable, same as closed kern/35138
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Apr 21 04:40:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Vallo Kallaste
>Release: FreeBSD 4.5-STABLE i386
>Organization:
Estonian Telephone Company
>Environment:
System: FreeBSD irc.estpak.ee 4.5-STABLE FreeBSD 4.5-STABLE #0: Fri Feb 22
09:13:38 EET 2002 some@where.estpak.ee:/usr/src/sys/compile/IRC i386
>Description:
Same as kern/35138.
This is IPv6 enabled irc server under light load. At this time debug
kernel is present. Crash is same as in closed kern/35138. Apparently
we're hitting some latent kernel bug. Sources are from Feb 22 as shown
in uname -a. Debug kernel and vmcore available at request.
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This GDB was configured as "i386-unknown-freebsd"...
IdlePTD at phsyical address 0x00337000
initial pcb at physical address 0x002a6f80
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xc1a72000
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01ab29f
stack pointer = 0x10:0xc02869c8
frame pointer = 0x10:0xc02869fc
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = Idle
interrupt mask =
trap number = 12
panic: page fault
syncing disks... 1
done
poll stalled [1] in phase 2
Uptime: 57d10h54m57s
dumping to dev #ad/0x20001, offset 10704
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 dumpsys () at ../../kern/kern_shutdown.c:487
487 ../../kern/kern_shutdown.c: No such file or directory.
(kgdb) where
#0 dumpsys () at ../../kern/kern_shutdown.c:487
#1 0xc013f50b in boot (howto=256) at ../../kern/kern_shutdown.c:316
#2 0xc013f949 in panic (fmt=0xc027fd0c "%s") at ../../kern/kern_shutdown.c:595
#3 0xc024863f in trap_fatal (frame=0xc0286988, eva=3248955392)
at ../../i386/i386/trap.c:966
#4 0xc02482ed in trap_pfault (frame=0xc0286988, usermode=0, eva=3248955392)
at ../../i386/i386/trap.c:859
#5 0xc0247e93 in trap (frame={tf_fs = -1071120368, tf_es = -1046020080,
tf_ds = -1050279920, tf_edi = -1046011912, tf_esi = -1050234880,
tf_ebp = -1071093252, tf_isp = -1071093324, tf_ebx = -1071093280,
tf_edx = -1050234880, tf_ecx = 0, tf_eax = 0, tf_trapno = 12,
tf_err = 0, tf_eip = -1071992161, tf_cs = 8, tf_eflags = 65606,
tf_esp = -1071093280, tf_ss = 28}) at ../../i386/i386/trap.c:458
#6 0xc01ab29f in nd6_lookup (addr6=0xc1a71ff8, create=0, ifp=0xc166b000)
at ../../netinet6/nd6.c:809
#7 0xc01ab469 in nd6_is_addr_neighbor (addr=0xc1a71ff0, ifp=0xc166b000)
at ../../netinet6/nd6.c:938
#8 0xc01ac497 in nd6_output (ifp=0xc166b000, origifp=0xc166b000,
m0=0xc0ae2900, dst=0xc1a71ff0, rt0=0xc18e8900) at ../../netinet6/nd6.c:1891
#9 0xc01a4b8d in ip6_output (m0=0xc0ae2900, opt=0x0, ro=0xcd06119c, flags=0,
im6o=0x0, ifpp=0x0) at ../../netinet6/ip6_output.c:913
#10 0xc019163b in tcp_output (tp=0xcd061220) at ../../netinet/tcp_output.c:855
#11 0xc0194a67 in tcp_timer_rexmt (xtp=0xcd061220)
at ../../netinet/tcp_timer.c:469
#12 0xc0145245 in softclock () at ../../kern/kern_timeout.c:131
#13 0xc023d9a0 in splz_swi ()
(kgdb) quit
Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 4.5-STABLE #0: Fri Feb 22 09:13:38 EET 2002
some@where.estpak.ee:/usr/src/sys/compile/IRC
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 549950651 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (549.95-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x673 Stepping = 3
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory = 268419072 (262128K bytes)
avail memory = 257941504 (251896K bytes)
Preloaded elf kernel "kernel" at 0xc0318000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc031809c.
VESA: v1.2, 2048k memory, flags:0x0, mode table:0xc00c49d2 (c00049d2)
VESA: ATI MACH64
Pentium Pro MTRR support enabled
Using $PIR table, 8 entries at 0xc00f0e70
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xd800-0xd80f at device 4.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 4.2 irq 11
chip1: <Intel 82371AB Power management controller> port 0xe800-0xe80f at device 4.3 on pci0
pci0: <ATI Mach64-CT graphics accelerator> at 9.0
dc0: <Intel 21143 10/100BaseTX> port 0xb800-0xb87f mem 0xe1800000-0xe180007f irq 11 at device 13.0 on pci0
dc0: Ethernet address: 00:80:ad:83:5b:25
miibus0: <MII bus> on dc0
dcphy0: <Intel 21143 NWAY media interface> on miibus0
dcphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
orm0: <Option ROM> at iomem 0xc0000-0xc7fff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> on isa0
sc0: VGA <5 virtual consoles, flags=0x200>
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
ad0: 3832MB <QUANTUM Bigfoot TX4.0AT> [8306/15/63] at ata0-master UDMA33
Mounting root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
>How-To-Repeat:
Not known as it seems to be latent and hits at random. We had almost 2
months of uptime. We're not seeing any crashes/malfunction with other
FreeBSD boxes and have several of them, but without IPv6 or at
least not in production use.
>Fix:
none
>Release-Note:
>Audit-Trail:
>Unformatted:
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