Date: Sun, 13 Jan 2002 18:48:13 +0000 From: Ceri Storey <cez@pkl.net> To: freebsd-stable@FreeBSD.ORG Subject: sysctl(2) related panic? Message-ID: <20020113184813.GD84064@mandelbrot.house>
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--OgqxwSJOaUobr8KG Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, i'm running FreeBSD-stable on one of my machines here, and just a moment ago, it paniced, after me running a sysctl -a. The backtrace seems to indicated it paniced in the sysctl code, with a NULL oid. Here's the dmesg / gdb session, if you need anything else, just ask. -- Ceri Storey <cez@pkl.net> http://pkl.net/~cez/ vi(1)! postfix(7)! pie(5)! --OgqxwSJOaUobr8KG Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=dmesg Copyright (c) 1992-2001 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-PRERELEASE #6: Thu Dec 20 15:21:06 GMT 2001 cez@mandelbrot.house:/usr/obj/usr/src/sys/HILBERT Timecounter "i8254" frequency 1193182 Hz CPU: AMD-K6(tm) 3D processor (451.02-MHz 586-class CPU) Origin = "AuthenticAMD" Id = 0x58c Stepping = 12 Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX> AMD Features=0x80000800<SYSCALL,3DNow!> real memory = 67043328 (65472K bytes) avail memory = 62103552 (60648K bytes) Preloaded elf kernel "kernel" at 0xc0322000. K6-family MTRR support enabled (2 registers) md0: Malloc disk Using $PIR table, 5 entries at 0xc00f7a50 npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <AcerLabs M1541 (Aladdin-V) PCI host bridge> on motherboard pci0: <PCI bus> on pcib0 pcib1: <AcerLabs M5243 PCI-PCI bridge> at device 1.0 on pci0 pci1: <PCI bus> on pcib1 pci0: <AcerLabs M5237 (Aladdin-V) USB controller> at 2.0 irq 10 isab0: <AcerLabs M1533 portable PCI-ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 rl0: <RealTek 8139 10/100BaseTX> port 0xdc00-0xdcff mem 0xdfffef00-0xdfffefff irq 9 at device 8.0 on pci0 rl0: Ethernet address: 00:c0:df:04:df:eb miibus0: <MII bus> on rl0 rlphy0: <RealTek internal media interface> on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto dc0: <82c169 PNIC 10/100BaseTX> port 0xd800-0xd8ff mem 0xdfffee00-0xdfffeeff irq 12 at device 9.0 on pci0 dc0: Ethernet address: 00:a0:cc:65:5c:76 miibus1: <MII bus> on dc0 ukphy0: <Generic IEEE 802.3u media interface> on miibus1 ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto pci0: <S3 868 graphics accelerator> at 10.0 irq 11 atapci0: <AcerLabs Aladdin ATA33 controller> port 0xffa0-0xffaf irq 0 at device 15.0 on pci0 ata0: at 0x1f0 irq 14 on atapci0 orm0: <Option ROM> at iomem 0xc0000-0xc7fff on isa0 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 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 kbd0 at atkbd0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> 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: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 ad0: 3681MB <QUANTUM FIREBALL_TM3840A> [7480/16/63] at ata0-master WDMA2 ad1: 4134MB <IBM-DHEA-34330> [8400/16/63] at ata0-slave UDMA33 Mounting root from ufs:/dev/ad0s1a WARNING: / was not properly dismounted dc0: promiscuous mode enabled rl0: promiscuous mode enabled --OgqxwSJOaUobr8KG Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: attachment; filename="screenlog.4" Content-Transfer-Encoding: 8bit gdb -k (kgdb) symbol-file /usr/obj/usr/src/sys/HILBERT/kernel.debug Reading symbols from /usr/obj/usr/src/sys/HILBERT/kernel.debug...done. (kgdb) core-file vmcore.28 IdlePTD at phsyical address 0x00346000 initial pcb at physical address 0x002b22a0 panicstr: page fault panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x6e695f72 fault code = supervisor read, page not present instruction pointer = 0x8:0xc01453f8 stack pointer = 0x10:0xc63f7e00 frame pointer = 0x10:0xc63f7e24 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 = 23729 (sysctl) interrupt mask = none trap number = 12 panic: page fault syncing disks... 13 1 done Uptime: 23d18h45m38s dumping to dev #ad/0x20009, offset 131200 dump ata0: resetting devices .. done 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 /usr/src/sys/kern/kern_shutdown.c:473 473 if (dumping++) { (kgdb) bt #0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:473 #1 0xc0140f43 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:313 #2 0xc0141318 in poweroff_wait (junk=0xc028960c, howto=-1071083217) at /usr/src/sys/kern/kern_shutdown.c:581 #3 0xc02533a2 in trap_fatal (frame=0xc63f7dc0, eva=1852399474) at /usr/src/sys/i386/i386/trap.c:956 #4 0xc0253075 in trap_pfault (frame=0xc63f7dc0, usermode=0, eva=1852399474) at /usr/src/sys/i386/i386/trap.c:849 #5 0xc0252c33 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 1852399474, tf_esi = -968917232, tf_ebp = -968917468, tf_isp = -968917524, tf_ebx = -1064370496, tf_edx = -968929280, tf_ecx = -1, tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1072409608, tf_cs = 8, tf_eflags = 66118, tf_esp = -968917388, tf_ss = 6}) at /usr/src/sys/i386/i386/trap.c:448 #6 0xc01453f8 in sysctl_sysctl_name (oidp=0xc0298860, arg1=0xc63f7f04, arg2=4, req=0xc63f7e74) at /usr/src/sys/kern/kern_sysctl.c:507 #7 0xc0145cde in sysctl_root (oidp=0x0, arg1=0xc63f7efc, arg2=6, req=0xc63f7e74) at /usr/src/sys/kern/kern_sysctl.c:1035 #8 0xc0145e99 in userland_sysctl (p=0xc6240dc0, name=0xc63f7efc, namelen=6, old=0xbfbfee5c, oldlenp=0xbfbfee20, inkernel=0, new=0x0, newlen=0, retval=0xc63f7ef8) at /usr/src/sys/kern/kern_sysctl.c:1131 #9 0xc0145d59 in __sysctl (p=0xc6240dc0, uap=0xc63f7f80) at /usr/src/sys/kern/kern_sysctl.c:1067 ---Type <return> to continue, or q <return> to quit--- #10 0xc025364d in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077940700, tf_esi = 6, tf_ebp = -1077940804, tf_isp = -968917036, tf_ebx = -1077940700, tf_edx = -1077940704, tf_ecx = 0, tf_eax = 202, tf_trapno = 8, tf_err = 2, tf_eip = 134560580, tf_cs = 31, tf_eflags = 647, tf_esp = -1077940864, tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:1155 #11 0xc0244985 in Xint0x80_syscall () #12 0x8048a78 in ?? () #13 0x8049077 in ?? () #14 0x8048301 in ?? () #15 0x8048137 in ?? () (kgdb) up #1 0xc0140f43 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:313 313 dumpsys(); (kgdb) #2 0xc0141318 in poweroff_wait (junk=0xc028960c, howto=-1071083217) at /usr/src/sys/kern/kern_shutdown.c:581 581 boot(bootopt); (kgdb) #3 0xc02533a2 in trap_fatal (frame=0xc63f7dc0, eva=1852399474) at /usr/src/sys/i386/i386/trap.c:956 956 panic("%s", trap_msg[type]); (kgdb) #4 0xc0253075 in trap_pfault (frame=0xc63f7dc0, usermode=0, eva=1852399474) at /usr/src/sys/i386/i386/trap.c:849 849 trap_fatal(frame, eva); (kgdb) #5 0xc0252c33 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 1852399474, tf_esi = -968917232, tf_ebp = -968917468, tf_isp = -968917524, tf_ebx = -1064370496, tf_edx = -968929280, tf_ecx = -1, tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1072409608, tf_cs = 8, tf_eflags = 66118, tf_esp = -968917388, tf_ss = 6}) at /usr/src/sys/i386/i386/trap.c:448 448 (void) trap_pfault(&frame, FALSE, eva); (kgdb) #6 0xc01453f8 in sysctl_sysctl_name (oidp=0xc0298860, arg1=0xc63f7f04, arg2=4, req=0xc63f7e74) at /usr/src/sys/kern/kern_sysctl.c:507 507 error = SYSCTL_OUT(req, oid->oid_name, (kgdb) ist Undefined command: "ist". Try "help". (kgdb) list 502 continue; 503 504 if (req->oldidx) 505 error = SYSCTL_OUT(req, ".", 1); 506 if (!error) 507 error = SYSCTL_OUT(req, oid->oid_name, 508 strlen(oid->oid_name)); 509 if (error) 510 return (error); 511 (kgdb) print oid $1 = (struct sysctl_oid *) 0x0 (kgdb)info locals name = (int *) 0xc63f7f10 namelen = 1 error = 1852399474 oid = (struct sysctl_oid *) 0x0 lsp = (struct sysctl_oid_list *) 0x0 lsp2 = (struct sysctl_oid_list *) 0x0 buf = "\006\000\000\000ü~?ÆP~" (kgdb) up #7 0xc0145cde in sysctl_root (oidp=0x0, arg1=0xc63f7efc, arg2=6, req=0xc63f7e74) at /usr/src/sys/kern/kern_sysctl.c:1035 1035 error = oid->oid_handler(oid, (int *)arg1 + indx, arg2 - indx, (kgdb) info locals arg1 = (void *) 0xc63f7efc arg2 = 6 req = (struct sysctl_req *) 0xc63f7e74 oid = (struct sysctl_oid *) 0xc0298860 error = 0 indx = 2 (kgdb) up #8 0xc0145e99 in userland_sysctl (p=0xc6240dc0, name=0xc63f7efc, namelen=6, old=0xbfbfee5c, oldlenp=0xbfbfee20, inkernel=0, new=0x0, newlen=0, retval=0xc63f7ef8) at /usr/src/sys/kern/kern_sysctl.c:1131 1131 error = sysctl_root(0, name, namelen, &req2); (kgdb) info locals p = (struct proc *) 0x0 old = (void *) 0xc63f7e9c oldlenp = (size_t *) 0xc63f7ec4 newlen = 0 error = 0 req = {p = 0xc6240dc0, lock = 1, oldptr = 0xbfbfee5c, oldlen = 1024, oldidx = 0, oldfunc = 0xc0145aa8 <sysctl_old_user>, newptr = 0x0, newlen = 0, newidx = 0, newfunc = 0xc0145b34 <sysctl_new_user>} req2 = {p = 0xc6240dc0, lock = 2, oldptr = 0xbfbfee5c, oldlen = 1024, oldidx = 15, oldfunc = 0xc0145aa8 <sysctl_old_user>, newptr = 0x0, newlen = 0, newidx = 0, newfunc = 0xc0145b34 <sysctl_new_user>} (kgdb) up #9 0xc0145d59 in __sysctl (p=0xc6240dc0, uap=0xc63f7f80) at /usr/src/sys/kern/kern_sysctl.c:1067 1067 error = userland_sysctl(p, name, uap->namelen, (kgdb) info locals uap = (struct sysctl_args *) 0xc63f7f80 error = 0 i = 0 name = {0, 1, 4, 18, 6, 1869414501, 106, -1060258752, -970715712, -970715712, -968917120, 6} j = 16 (kgdb) up #10 0xc025364d in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077940700, tf_esi = 6, tf_ebp = -1077940804, tf_isp = -968917036, tf_ebx = -1077940700, tf_edx = -1077940704, tf_ecx = 0, tf_eax = 202, tf_trapno = 8, tf_err = 2, tf_eip = 134560580, tf_cs = 31, tf_eflags = 647, tf_esp = -1077940864, tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:1155 1155 error = (*callp->sy_call)(p, args); (kgdb) info locals params = 0xbfbfed84 "$î¿¿\006" i = 0 callp = (struct sysent *) 0xc0294cb0 p = (struct proc *) 0xc6240dc0 sticks = 6 error = 0 narg = 6 args = {-1077940700, 6, -1077940644, -1077940704, 0, 0, 0, 47} have_mplock = 1 code = 202 (kgdb) up #11 0xc0244985 in Xint0x80_syscall () (kgdb) --OgqxwSJOaUobr8KG-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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