Date: Wed, 19 Feb 2003 07:11:10 -0800 (PST) From: David Xu <davidxu@FreeBSD.org> To: freebsd-current@freebsd.org Subject: reproducable kernel crash Message-ID: <200302191511.h1JFBAjW000625@freefall.freebsd.org>
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OK, I can 100% let SMP kernel crash here.
Turn on cpu hlt sysctl,
%sysctl -w machdep.cpu_idle_hlt=1
then copy a large file to my home directory
%cp /boot/kernel .
Press ctl+alt+del immediately after copy.
When in reboot state, kernel crashed when trying to
shutdown bufdaemon.
backtrace shows the trap is at cpu_idle+0x1e, the fault
is page fault referencing zero address.
if I set machdep.cpu_idle_hlt to 0, I can not reproduce
the bug.
%dmesg
Copyright (c) 1992-2003 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 5.0-CURRENT #7: Wed Feb 19 22:22:27 CST 2003
davidxu@asus.my:/home/davidxu/src/sys/i386/compile/xu2
Preloaded elf kernel "/boot/kernel/kernel" at 0xc04cc000.
Preloaded elf module "/boot/kernel/vesa.ko" at 0xc04cc0a8.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc04cc154.
Timecounter "i8254" frequency 1193182 Hz
CPU: Intel Pentium III (999.67-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x68a Stepping = 10
Features=0x387fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,PN,MMX,FXSR,SSE>
real memory = 268369920 (255 MB)
avail memory = 255410176 (243 MB)
Programming 24 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): apic id: 0, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 1, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00178011, at 0xfec00000
Pentium Pro MTRR support enabled
VESA: v3.0, 32768k memory, flags:0x1, mode table:0xc047fca2 (1000022)
VESA: NVidia
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <VIA694 AWRDACPI> on motherboard
ACPI-0625: *** Info: GPE Block0 defined as GPE0 to GPE15
pcibios: BIOS version 2.10
Using $PIR table, 8 entries at 0xc00fdd20
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-fast" frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_cpu1: <CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0x6000-0x607f,0x5000-0x500f,0x4080-0x40ff,0x4000-0x407f,0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA 82C691 (Apollo Pro) host to PCI bridge> mem 0xf0000000-0xf3ffffff at device 0.0 on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 82C686 ATA100 controller> port 0xe000-0xe00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <VIA 83C572 USB controller> port 0xe400-0xe41f irq 5 at device 7.2 on pci0
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub0: port error, restarting port 1
uhub0: port error, giving up port 1
uhub0: port error, restarting port 2
uhub0: port error, giving up port 2
uhci1: <VIA 83C572 USB controller> port 0xe800-0xe81f irq 5 at device 7.3 on pci0
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhub1: port error, restarting port 1
uhub1: port error, giving up port 1
uhub1: port error, restarting port 2
uhub1: port error, giving up port 2
pci0: <bridge, PCI-unknown> at device 7.4 (no driver attached)
ed0: <NE2000 PCI Ethernet (RealTek 8029)> port 0xec00-0xec1f irq 11 at device 9.0 on pci0
ed0: address 52:54:ab:52:53:8f, type NE2000 (16 bit)
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
ppc0 port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse, device ID 3
pmtimer0 on isa0
orm0: <Option ROM> at iomem 0xc0000-0xcb7ff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via IOAPIC #0 intpin 2
Timecounters tick every 10.000 msec
acpi_cpu: throttling enabled, 2 steps (100% to 50.0%), currently 100.0%
ad0: 57241MB <ST360021A> [116301/16/63] at ata0-master UDMA100
acd0: CDROM <ATAPI-CD ROM-DRIVE-52MAX> at ata1-slave PIO4
SMP: AP CPU #1 Launched!
MBREXT Slice 5 on ad0s2:
[0] f:00 typ:7 s(CHS):5/1/65 e(CHS):255/254/255 s:63 l:20964762
[1] f:00 typ:5 s(CHS):255/0/193 e(CHS):255/254/255 s:20964825 l:20964825
MBREXT Slice 6 on ad0s2:
[0] f:00 typ:7 s(CHS):255/1/193 e(CHS):255/254/255 s:63 l:20964762
[1] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
Mounting root from ufs:/dev/ad0s3a
---
David Xu
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