Good Evening, Checked nightly logs to discover that there had been two lock order reversals last night on my SMP 5.2C machine. They are listed as: lock order reversal 1st 0xc7975dec vm object (vm object) _at_ /usr/src/sys/vm/swap_pager.c:1314 2nd 0xc0788d80 swap_pager swhash (swap_pager swhash) _at_ /usr/src/sys/vm/swap_pager.c:1823 3rd 0xc1042738 vm object (vm object) _at_ /usr/src/sys/vm/uma_core.c:873 Stack backtrace: lock order reversal 1st 0xca738038 filedesc structure (filedesc structure) _at_ /usr/src/sys/kern/sys_generic.c:901 2nd 0xc0752d80 Giant (Giant) _at_ /usr/src/sys/fs/specfs/spec_vnops.c:377 Stack backtrace: The backtrace for the second LOR was thankfully still on screen, I've taken a screen shot and it can be located at: http://parallax.alastria.net/~peter/xenon-lor1.jpg I'm going to cvsup to current shortly, I'm interested in trying the new schedular. If anyone from core needs access to the machine to poke, let me know. Kind regards, Peter. Machine dmesg is as follows: Copyright (c) 1992-2004 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 5.2-CURRENT #3: Sat Jan 17 16:15:10 GMT 2004 pa_at_xenon.talbot.lan:/usr/src/sys/i386/compile/XENON Preloaded elf kernel "/boot/kernel/kernel" at 0xc087a000. Preloaded elf module "/boot/kernel/acpi.ko" at 0xc087a294. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: AMD Athlon(tm) MP 2000+ (1666.74-MHz 686-class CPU) Origin = "AuthenticAMD" Id = 0x662 Stepping = 2 Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM OV,PAT,PSE36,MMX,FXSR,SSE> AMD Features=0xc0480000<MP,AMIE,DSP,3DNow!> real memory = 2146959360 (2047 MB) avail memory = 2095476736 (1998 MB) ACPI APIC Table: <PTLTD APIC > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 1 cpu1 (AP): APIC ID: 0 ioapic0 <Version 1.1> irqs 0-23 on motherboard Pentium Pro MTRR support enabled npx0: [FAST] npx0: <math processor> on motherboard npx0: INT 16 interface acpi0: <PTLTD RSDT> on motherboard pcibios: BIOS version 2.10 acpi0: Power Button (fixed) acpi0: Sleep Button (fixed) Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x8008-0x800b on acpi0 acpi_cpu0: <CPU> port 0x530-0x537 on acpi0 acpi_cpu1: <CPU> port 0x530-0x537 on acpi0 acpi_button0: <Power Button> on acpi0 pcib0: <ACPI Host-PCI bridge> port 0x8080-0x80ff,0x8000-0x807f,0xcf8-0xcff iomem 0xd8000-0xdbfff on acpi0 pci0: <ACPI PCI bus> on pcib0 agp0: <AMD 762 host to AGP bridge> port 0x1010-0x1013 mem 0xf1300000-0xf1300fff, 0xf4000000-0xf7ffffff at device 0.0 on pci0 pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0 pci1: <ACPI PCI bus> on pcib1 pci1: <display, VGA> at device 5.0 (no driver attached) isab0: <PCI-ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <AMD 768 UDMA100 controller> port 0xf000-0xf00f at device 7.1 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata0: [MPSAFE] ata1: at 0x170 irq 15 on atapci0 ata1: [MPSAFE] pci0: <bridge, PCI-unknown> at device 7.3 (no driver attached) pcib2: <PCI-PCI bridge> at device 9.0 on pci0 pci2: <PCI bus> on pcib2 asr0: <Adaptec Caching SCSI RAID> mem 0xf8000000-0xfbffffff irq 21 at device 9.1 on pci0 asr0: major=154 asr0: ADAPTEC 2400A FW Rev. 370L, 4 channel, 256 CCBs, Protocol I2O pcib3: <ACPI PCI-PCI bridge> at device 16.0 on pci0 pci3: <ACPI PCI bus> on pcib3 pci3: <serial bus, USB> at device 0.0 (no driver attached) atapci1: <Promise PDC20268 UDMA100 controller> port 0x2480-0x248f,0x2490-0x2493, 0x2498-0x249f,0x2494-0x2497,0x24a0-0x24a7 mem 0xf1000000-0xf1003fff irq 16 at device 4.0 on pci3 atapci1: [MPSAFE] ata2: at 0x24a0 on atapci1 ata2: [MPSAFE] ata3: at 0x2498 on atapci1 ata3: [MPSAFE] ahc0: <Adaptec 2902/04/10/15/20C/30C SCSI adapter> port 0x2000-0x20ff mem 0xf100 5000-0xf1005fff irq 17 at device 5.0 on pci3 ahc0: Host Adapter Bios disabled. Using default SCSI device parameters aic7850: Single Channel A, SCSI Id=7, 3/253 SCBs pcm0: <AudioPCI ES1370> port 0x2400-0x243f irq 18 at device 6.0 on pci3 fxp0: <Intel 82550 Pro/100 Ethernet> port 0x2440-0x247f mem 0xf1020000-0xf103fff f,0xf1006000-0xf1006fff irq 19 at device 7.0 on pci3 fxp0: Ethernet address 00:02:b3:b4:4c:bb miibus0: <MII bus> on fxp0 inphy0: <i82555 10/100 media interface> on miibus0 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 kbd0 at atkbd0 sio0 port 0x3f8-0x3ff irq 4 on acpi0 sio0: type 16550A sio1 port 0x2f8-0x2ff irq 3 on acpi0 sio1: type 16550A ppc0 port 0x778-0x77f,0x378-0x37f irq 7 drq 3 on acpi0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/9 bytes threshold ppbus0: <Parallel port bus> on ppc0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 0x3f7,0x3f0-0 x3f5 irq 6 drq 2 on acpi0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 orm0: <Option ROMs> at iomem 0xe0000-0xe3fff,0xce000-0xcffff,0xc8000-0xcdfff,0xc 0000-0xc7fff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 Timecounters tick every 10.000 msec acd0: DVDROM <Pioneer DVD-ROM ATAPIModel DVD-117 0107> at ata0-master UDMA66 GEOM: create disk ad4 dp=0xc77be660 ad4: 114473MB <WDC WD1200JB-00DUA3> [232581/16/63] at ata2-master UDMA100 GEOM: create disk ad6 dp=0xc77be460 ad6: 58644MB <IC35L060AVER07-0> [119150/16/63] at ata3-master UDMA100 Waiting 5 seconds for SCSI devices to settle sa0 at ahc0 bus 0 target 4 lun 0 sa0: <Quantum DLT4000 CPQ DRV D473> Removable Sequential Access SCSI-2 device sa0: 10.000MB/s transfers (10.000MHz, offset 15) GEOM: create disk cd0 dp=0xc7448600 GEOM: create disk da0 dp=0xc77e5450 da0 at asr0 bus 0 target 0 lun 0 da0: <ADAPTEC RAID-5 370L> Fixed Direct Access SCSI-2 device da0: Tagged Queueing Enabled da0: 343419MB (703322112 512 byte sectors: 255H 63S/T 43779C) SMP: AP CPU #1 Launched! cd0 at ahc0 bus 0 target 2 lun 0 cd0: <YAMAHA CRW8824S 1.00> Removable CD-ROM SCSI-2 device cd0: 10.000MB/s transfers (10.000MHz, offset 15) cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed Mounting root from ufs:/dev/ad4s1a -- Peter Wood <peter_at_alastria.net> :: Tel +44 7974 799440Received on Mon Jan 26 2004 - 08:31:08 UTC
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