Hi,
I have seen this panic a few times on a Gigabyte E350N-USB3 running 8-STABLE.
I have only seen it while in X, but then the machine is always in X. At first,
I just got these hangs, so bought a PCI-express RS232 card and could see these
at last. For some reason it does not go past this, so I have not been able to
get a dump yet.
Have anybody an idea of why this is or how to debug it further? I searched
the archives and found something similar about a year ago, but it looks
like it was solved with a fix that got committed.
http://www.freebsd.org/cgi/query-pr.cgi?pr=140338
I have now disabled mca in loader.conf with 'hw.mca.enabled="0"' and I have
not seen that panic again. I do occasionally see a panic in devfs_open(),
but I guess that should be handled in another thread.
The kernel is basically a GENERIC kernel with puc uncommented and the
following in loader.conf
vm.kmem_size="12G"
hw.mca.enabled="0"
zfs_load="YES"
ahci_load="YES"
xhci_load="YES"
amdtemp_load="YES"
ng_ubt_load="YES"
uplcom_load="YES"
Here is the panic message and after that dmesg.
John
--
John Hay -- j...@meraka.csir.co.za / j...@freebsd.org
MCA: Bank 0, Status 0xb6010015
MCA: Global Cap 0x0106, Status 0x0004
MCA: Vendor "AuthenticAMD", ID 0x500f10, APIC ID 0
MCA: CPU 0 UNCOR PCC DTLB L1 error
MCA: Address 0x8016c4000
Fatal trap 28: machine check trap while in user mode
cpuid = 0; apic id = 00
instruction pointer = 0x43:0x80156af85
stack pointer = 0x3b:0x7fffcb18
frame pointer = 0x3b:0x80fe87800
code segment= base 0x0, limit 0xf, type 0x1b
= DPL 3, pres 1, long 1, def32 0, gran 1
processor eflags= interrupt enabled, IOPL = 0
current process = 2484 (initial thread)
trap number = 28
panic: machine check trap
cpuid = 0
KDB: stack backtrace:
#0 0x80608d5e at kdb_backtrace+0x5e
#1 0x805d6707 at panic+0x187
#2 0x808bf4c0 at trap_fatal+0x290
#3 0x808bfaa9 at trap+0x109
#4 0x808a7d94 at calltrap+0x8
Copyright (c) 1992-2011 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.2-STABLE #1: Fri Apr 29 10:14:26 SAST 2011
j...@angel.cids.org.za:/usr/obj/usr/src/sys/ANGEL amd64
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD E-350 Processor (1600.07-MHz K8-class CPU)
Origin = "AuthenticAMD" Id = 0x500f10 Family = 14 Model = 1 Stepping = 0
Features=0x178bfbff
Features2=0x802209
AMD Features=0x2e500800
AMD
Features2=0x35ff
TSC: P-state invariant
real memory = 8589934592 (8192 MB)
avail memory = 7841800192 (7478 MB)
ACPI APIC Table:
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s)
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
ioapic0: Changing APIC ID to 2
ioapic0 irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a (3) failed
acpi0: reservation of 10, cfcf (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: on acpi0
cpu1: on acpi0
acpi_button0: on acpi0
pcib0: port 0xcf8-0xcff on acpi0
pci0: on pcib0
vgapci0: port 0xf800-0xf8ff mem
0xd000-0xdfff,0xfdfc-0xfdff irq 18 at device 1.0 on pci0
pci0: at device 1.1 (no driver attached)
pcib1: irq 16 at device 4.0 on pci0
pci1: on pcib1
pcib2: irq 16 at device 0.0 on pci1
pci2: on pcib2
puc0: port 0xef00-0xef1f,0xee00-0xee0f irq 16 at device 8.0 on
pci2
puc0: [FILTER]
uart0: <16950 or compatible> on puc0
uart0: [FILTER]
uart1: <16950 or compatible> on puc0
uart1: [FILTER]
ahci0: port
0xff00-0xff07,0xfe00-0xfe03,0xfd00-0xfd07,0xfc00-0xfc03,0xfb00-0xfb0f mem
0xfe02f000-0xfe02f3ff irq 19 at device 17.0 on pci0
ahci0: [ITHREAD]
ahci0: AHCI v1.20 with 4 6Gbps ports, Port Multiplier supported
ahcich0: at channel 0 on ahci0
ahcich0: [ITHREAD]
ahcich1: at channel 1 on ahci0
ahcich1: [ITHREAD]
ahcich2: at channel 2 on ahci0
ahcich2: [ITHREAD]
ahcich3: at channel 3 on ahci0
ahcich3: [ITHREAD]
ohci0: mem 0xfe02e000-0xfe02efff irq 18 at
device 18.0 on pci0
ohci0: [ITHREAD]
usbus0: on ohci0
ehci0: mem 0xfe02d000-0xfe02d0ff irq 17 at
device 18.2 on pci0
ehci0: [ITHREAD]
usbus1: EHCI version 1.0
usbus1: on ehci0
ohci1: mem 0xfe02c000-0xfe02cfff irq 18 at
device 19.0 on pci0
ohci1: [ITHREAD]
usbus2: on ohci1
ehci1: mem 0xfe02b000-0xfe02b0ff irq 17 at
device 19.2 on pci0
ehci1: [ITHREAD]
usbus3: EHCI version 1.0
usbus3: on ehci1
pci0: at device 20.0 (no driver attached)
atapci0: port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfa00-0xfa0f at device 20.1
