I've recently been experiencing frequent hangs with FreeBSD 5.3-RELEASE-p20.
Strangely, this didn't appear to happen with 5.3-RELEASE or before
a few months ago.
My platform is a P4-2.8 GHz (dmesg appended at end).
The behavior is that X freezes (sorry, I can't say if the clock is still
working because I forgot to check) and sshing into the box hangs. A
hard reboot clears things and the box starts normally, except that it
fscks as expected. Nothing appears in /var/log/messages, etc.
Because this problem started fairly recently, my one guess is that this
is somehow related to the hyperthreading fix in SA-05:09. This processor
allegedly has hyperthreading but I'm running GENERIC. Any possibility
this could be responsible for hanging somehow?
If this isn't a likely culprit, I'm assuming that the next step is to
try to debug the hang with DDB. There's one added difficulty here which
is that I'm using a Matrox P650 and for some reason the X drivers are
screwy so that once you've entered X any attempt to use the virtual
consoles just gets you a blank screen. So, while I've rebuilt the kernel
with DDB, I suspect that I won't actually be able to force the system
console into debugging mode. I assume that this means I need a serial
console but based on the Handbook serial console section it looks like
I can't use a serial console along with the normal console, and since
I want to use X, that would be bad. Am I misreading this?
Any help FreeBSDers can offer would be much appreciated.
Best,
-Ekr
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 5.3-RELEASE-p20 #0: Wed Jul 27 05:56:48 PDT 2005
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC
ACPI APIC Table: A M I OEMAPIC
Timecounter i8254 frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2798.67-MHz 686-class CPU)
Origin = GenuineIntel Id = 0xf25 Stepping = 5
Features=0xbfebfbffFPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE
Hyperthreading: 2 logical CPUs
real memory = 1072889856 (1023 MB)
avail memory = 1040326656 (992 MB)
ioapic0 Version 2.0 irqs 0-23 on motherboard
npx0: [FAST]
npx0: math processor on motherboard
npx0: INT 16 interface
acpi0: A M I OEMRSDT on motherboard
acpi0: Power Button (fixed)
Timecounter ACPI-fast frequency 3579545 Hz quality 1000
acpi_timer0: 24-bit timer at 3.579545MHz port 0x808-0x80b on acpi0
cpu0: ACPI CPU port 0x530-0x537 on acpi0
pcib0: ACPI Host-PCI bridge port 0xcf8-0xcff on acpi0
pci0: ACPI PCI bus on pcib0
agp0: Intel 82875P host to AGP bridge mem 0xf400-0xf7ff at device 0.0
on pci0
pcib1: ACPI PCI-PCI bridge at device 1.0 on pci0
pcib1: could not get PCI interrupt routing table for \\_SB_.PCI0.P0P1 -
AE_NOT_FOUND
pci1: ACPI PCI bus on pcib1
pci1: display, VGA at device 0.0 (no driver attached)
pcib2: ACPI PCI-PCI bridge at device 3.0 on pci0
pci2: ACPI PCI bus on pcib2
em0: Intel(R) PRO/1000 Network Connection, Version - 1.7.35 port
0xcf80-0xcf9f mem 0xfe9e-0xfe9f irq 18 at device 1.0 on pci2
em0: Ethernet address: 00:0e:a6:1c:7e:4d
em0: Speed:N/A Duplex:N/A
uhci0: Intel 82801EB (ICH5) USB controller USB-A port 0xef00-0xef1f irq 16 at
device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: Intel 82801EB (ICH5) USB controller USB-A on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: Intel 82801EB (ICH5) USB controller USB-B port 0xef20-0xef3f irq 19 at
device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: Intel 82801EB (ICH5) USB controller USB-B on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: Intel 82801EB (ICH5) USB controller USB-C port 0xef40-0xef5f irq 18 at
device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: Intel 82801EB (ICH5) USB controller USB-C on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3: Intel 82801EB (ICH5) USB controller USB-D port 0xef80-0xef9f irq 16 at
device 29.3 on pci0
uhci3: [GIANT-LOCKED]
usb3: Intel 82801EB (ICH5) USB controller USB-D on uhci3
usb3: USB revision 1.0
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
pci0: serial bus, USB at device 29.7 (no driver attached)
pcib3: ACPI PCI-PCI bridge at device 30.0 on pci0
pci3: ACPI PCI bus on pcib3
fwohci0: VIA Fire II (VT6306) port 0xdc00-0xdc7f mem 0xfeaff800-0xfeaf
irq 20 at device 3.0 on pci3
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 8.
fwohci0: EUI64 00:e0:18:00:00:4b:c3:e5
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: IEEE1394(FireWire) bus on fwohci0
