Bug#685295: grub crashes with invalid memory access
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Wed Dec 19 22:52:27 UTC 2012
On 12/19/2012 05:30 PM, Daniel Kahn Gillmor wrote:
> i'm seeing the same behavior.
attached is the output of lshw on the failing machine, as well as a
(crappy webcam) photo of the openfirmware prompt.
I note that on another similar powerpc "eMac" machine (though not
identical hardware) i'm not seeing this behavior, so this is specific to
one machine.
Also, i tried different memory modules on the failing machine (it uses
PC3200 DDR RAM), and it continues to exhibit the same misbehavior.
--dkg
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gandalf
description: Computer
product: PowerMac6,4
vendor: Copyright 1983-2004 Apple Computer, Inc. All Rights Reserved
serial: QJB
width: 32 bits
*-core
description: Motherboard
physical id: 0
clock: 166MHz
capabilities: powermac6_4 macrisc3 power_macintosh
*-firmware
product: OpenFirmware 3
physical id: 0
logical name: /proc/device-tree
capabilities: bootinfo
*-memory
description: System memory
physical id: 1
size: 512MiB
*-bank:0
description: Memory bank
physical id: 0
slot: DIMM0/J2
*-bank:1
description: Memory bank
physical id: 1
version: 0400,05 0B,04
serial: 16VDDT6464AG-40BG4
slot: DIMM1/J1
size: 512MiB
*-cpu
description: CPU
product: 7447A, altivec supported
physical id: 2
bus info: cpu at 0
version: 1.2 (pvr 8003 0102)
size: 1249MHz
clock: 166MHz
capabilities: altivec performance-monitor
*-cache:0
description: L1 Cache
physical id: 0
size: 32KiB
*-cache:1
description: L2 Cache (unified)
physical id: 1
size: 512KiB
clock: 1249MHz (0.8ns)
*-pci:0
description: Host bridge
product: UniNorth 2 AGP
vendor: Apple Inc.
physical id: 100
bus info: pci at 0000:00:0b.0
version: 00
width: 32 bits
clock: 66MHz
configuration: driver=agpgart-uninorth latency=16
resources: irq:0
*-display
description: VGA compatible controller
product: RV280 [Radeon 9200]
vendor: Advanced Micro Devices [AMD] nee ATI
physical id: 10
bus info: pci at 0000:00:10.0
version: 01
width: 32 bits
clock: 66MHz
capabilities: agp agp-2.0 pm vga_controller bus_master cap_list rom
configuration: driver=radeonfb latency=255 mingnt=8
resources: irq:48 memory:98000000-9fffffff ioport:400(size=256) memory:90000000-9000ffff memory:90020000-9003ffff
*-pci:1
description: Host bridge
product: UniNorth 2 PCI
vendor: Apple Inc.
physical id: 101
bus info: pci at 0001:10:0b.0
version: 00
width: 32 bits
clock: 66MHz
configuration: latency=16
*-generic
description: Unassigned class
product: KeyLargo/Intrepid Mac I/O
vendor: Apple Inc.
physical id: 17
bus info: pci at 0001:10:17.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=macio latency=16
resources: irq:0 memory:80000000-8007ffff
*-usb:0 UNCLAIMED
description: USB controller
product: KeyLargo/Intrepid USB
vendor: Apple Inc.
physical id: 18
bus info: pci at 0001:10:18.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: ohci
configuration: latency=0 maxlatency=86 mingnt=3
*-usb:1 UNCLAIMED
description: USB controller
product: KeyLargo/Intrepid USB
vendor: Apple Inc.
physical id: 19
bus info: pci at 0001:10:19.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: ohci
configuration: latency=0 maxlatency=86 mingnt=3
*-usb:2
description: USB controller
product: KeyLargo/Intrepid USB
vendor: Apple Inc.
physical id: 1a
bus info: pci at 0001:10:1a.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: ohci bus_master
configuration: driver=ohci_hcd latency=16 maxlatency=86 mingnt=3
resources: irq:29 memory:80083000-80083fff
*-usb:3
description: USB controller
product: USB
vendor: NEC Corporation
physical id: 1b
bus info: pci at 0001:10:1b.0
version: 43
width: 32 bits
clock: 33MHz
capabilities: pm ohci bus_master cap_list
configuration: driver=ohci_hcd latency=16 maxlatency=42 mingnt=1
resources: irq:63 memory:80082000-80082fff
*-usb:4
description: USB controller
product: USB
vendor: NEC Corporation
physical id: 1b.1
bus info: pci at 0001:10:1b.1
version: 43
width: 32 bits
clock: 33MHz
capabilities: pm ohci bus_master cap_list
configuration: driver=ohci_hcd latency=16 maxlatency=42 mingnt=1
resources: irq:63 memory:80081000-80081fff
*-usb:5
description: USB controller
product: USB 2.0
vendor: NEC Corporation
physical id: 1b.2
bus info: pci at 0001:10:1b.2
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm ehci bus_master cap_list
configuration: driver=ehci_hcd latency=16 maxlatency=34 mingnt=16
resources: irq:63 memory:80080000-800800ff
*-pci:2
description: Host bridge
product: UniNorth 2 Internal PCI
vendor: Apple Inc.
physical id: 102
bus info: pci at 0002:20:0b.0
version: 00
width: 32 bits
clock: 66MHz
configuration: latency=16
*-generic
description: Unassigned class
product: UniNorth/Intrepid ATA/100
vendor: Apple Inc.
physical id: d
bus info: pci at 0002:20:0d.0
logical name: scsi0
version: 00
width: 32 bits
clock: 33MHz
capabilities: bus_master emulated
configuration: driver=pata-pci-macio latency=32
resources: irq:39 memory:f5004000-f5007fff
*-disk
description: ATA Disk
product: ST340015A
vendor: Seagate
physical id: 0.0.0
bus info: scsi at 0:0.0.0
logical name: /dev/sda
version: 3.01
serial: 5LAHGQEH
size: 37GiB (40GB)
capabilities: partitioned partitioned:mac
configuration: ansiversion=5 sectorsize=512
*-volume:0
description: Apple partition map
physical id: 1
bus info: scsi at 0:0.0.0,1
logical name: /dev/sda1
capacity: 31KiB
*-volume:1
description: Apple Bootstrap
physical id: 2
bus info: scsi at 0:0.0.0,2
logical name: /dev/sda2
logical name: /boot/grub
size: 62MiB
capacity: 63MiB
capabilities: bootable hfs initialized
configuration: created=2012-12-19 15:33:50 filesystem=hfs label=grub modified=2012-12-19 17:10:04 mount.fstype=hfs mount.options=rw,nosuid,nodev,noexec,relatime,uid=0,gid=0 state=mounted
*-volume:2
description: Apple UNIX SVR2
physical id: 3
bus info: scsi at 0:0.0.0,3
logical name: /dev/sda3
serial: x6Qx1M-0acF-ctks-QF83-2E0Z-27oE-ee3OwJ
size: 37GiB
capacity: 37GiB
capabilities: lvm2
*-volume:3
description: Apple Free
physical id: 4
bus info: scsi at 0:0.0.0,4
logical name: /dev/sda4
capacity: 992KiB
*-volume:4
description: Apple Free
physical id: 5
bus info: scsi at 0:0.0.0,5
logical name: /dev/sda5
capacity: 696KiB
*-firewire
description: FireWire (IEEE 1394)
product: UniNorth 2 FireWire
vendor: Apple Inc.
physical id: e
bus info: pci at 0002:20:0e.0
version: 81
width: 32 bits
clock: 33MHz
capabilities: pm ohci bus_master cap_list
configuration: driver=firewire_ohci latency=64 maxlatency=24 mingnt=12
resources: irq:40 memory:f5000000-f5000fff
*-network
description: Ethernet interface
product: UniNorth 2 GMAC (Sun GEM)
vendor: Apple Inc.
physical id: f
bus info: pci at 0002:20:0f.0
logical name: eth0
version: 80
serial: 00:0d:93:4b:f9:c4
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 66MHz
capabilities: bus_master rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sungem driverversion=1.0 duplex=full ip=192.168.23.112 latency=16 link=yes maxlatency=64 mingnt=64 multicast=yes port=MII speed=100Mbit/s
resources: irq:41 memory:f5200000-f53fffff memory:f5100000-f51fffff
*-scsi
physical id: 3
logical name: scsi1
capabilities: emulated
*-cdrom
description: DVD reader
product: RW/DVD GCC-4481B
vendor: HL-DT-ST
physical id: 0.0.0
bus info: scsi at 1:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/sr0
version: 2.05
capabilities: removable audio cd-r cd-rw dvd
configuration: ansiversion=5 status=nodisc
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