12.04 Complete system lockup not detected by LKCD

[radiobert]

Hi all,
I am trying to generate a crashdump using LKCD (Linux kernel crash dump), I installed linux-crashdump, made very sure that the crashkernel is running, but freezes still occurs(complete lockup, magic sysrq key no effect, the caps-lock key also no respond), without displaying kernel panic messages even I left it for half an hour. I have checked that NMI watchdog has been enabled on all cores.

Currently using lenovo G580 laptop, using intel core-i5 and intel hd4000 integrated graphics.

Now I am very puzzled. Is there any other definite way of capturing system lockup events and generate memory dumps?

[radiobert]

FYI, the lockup happens very randomly, sometimes it occurs within an hour after boot, sometimes not happening even I run BOINC on it overnight.

[radiobert]

lspci -v :

00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
    Subsystem: Lenovo Device 3977
    Flags: bus master, fast devsel, latency 0
    Capabilities: <access denied>
    Kernel driver in use: agpgart-intel

00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    I/O behind bridge: 00003000-00003fff
    Memory behind bridge: d2000000-d30fffff
    Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) (prog-if 00 [VGA controller])
    Subsystem: Lenovo Device 3901
    Flags: bus master, fast devsel, latency 0, IRQ 43
    Memory at d3400000 (64-bit, non-prefetchable) [size=4M]
    Memory at e0000000 (64-bit, prefetchable) [size=256M]
    I/O ports at 4000 [size=64]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: <access denied>
    Kernel driver in use: i915
    Kernel modules: i915

00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
    Subsystem: Lenovo Device 3977
    Flags: bus master, medium devsel, latency 0, IRQ 42
    Memory at d3a00000 (64-bit, non-prefetchable) [size=64K]
    Capabilities: <access denied>
    Kernel driver in use: xhci_hcd

00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
    Subsystem: Lenovo Device 3977
    Flags: bus master, fast devsel, latency 0, IRQ 44
    Memory at d3a14000 (64-bit, non-prefetchable) [size=16]
    Capabilities: <access denied>
    Kernel driver in use: mei
    Kernel modules: mei

00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
    Subsystem: Lenovo Device 3977
    Flags: bus master, medium devsel, latency 0, IRQ 16
    Memory at d3a19000 (32-bit, non-prefetchable) [size=1K]
    Capabilities: <access denied>
    Kernel driver in use: ehci_hcd

00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
    Subsystem: Lenovo Device 3977
    Flags: bus master, fast devsel, latency 0, IRQ 46
    Memory at d3a10000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
    I/O behind bridge: 00002000-00002fff
    Memory behind bridge: d3900000-d39fffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
    Memory behind bridge: d3800000-d38fffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
    Subsystem: Lenovo Device 3977
    Flags: bus master, medium devsel, latency 0, IRQ 23
    Memory at d3a18000 (32-bit, non-prefetchable) [size=1K]
    Capabilities: <access denied>
    Kernel driver in use: ehci_hcd

00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
    Subsystem: Lenovo Device 3977
    Flags: bus master, medium devsel, latency 0
    Capabilities: <access denied>
    Kernel modules: iTCO_wdt

00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
    Subsystem: Lenovo Device 3977
    Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41
    I/O ports at 4088 [size=8]
    I/O ports at 4094 [size=4]
    I/O ports at 4080 [size=8]
    I/O ports at 4090 [size=4]
    I/O ports at 4060 [size=32]
    Memory at d3a17000 (32-bit, non-prefetchable) [size=2K]
    Capabilities: <access denied>
    Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
    Subsystem: Lenovo Device 3977
    Flags: medium devsel, IRQ 10
    Memory at d3a15000 (64-bit, non-prefetchable) [size=256]
    I/O ports at 4040 [size=32]
    Kernel modules: i2c-i801

01:00.0 VGA compatible controller: NVIDIA Corporation Device 0de9 (rev a1) (prog-if 00 [VGA controller])
    Subsystem: Lenovo Device 3901
    Flags: bus master, fast devsel, latency 0, IRQ 11
    Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
    Memory at c0000000 (64-bit, prefetchable) [size=256M]
    Memory at d0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at 3000 [disabled] [size=128]
    Expansion ROM at d3000000 [disabled] [size=512K]
    Capabilities: <access denied>
    Kernel modules: nouveau, nvidiafb

02:00.0 Ethernet controller: Atheros Communications Inc. AR8162 Fast Ethernet (rev 08)
    Subsystem: Lenovo Device 3979
    Flags: bus master, fast devsel, latency 0, IRQ 45
    Memory at d3900000 (64-bit, non-prefetchable) [size=256K]
    I/O ports at 2000 [size=128]
    Capabilities: <access denied>
    Kernel driver in use: alx
    Kernel modules: alx

03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
    Subsystem: Lenovo Device 31a1
    Flags: bus master, fast devsel, latency 0, IRQ 17
    Memory at d3800000 (64-bit, non-prefetchable) [size=64K]
    Capabilities: <access denied>
    Kernel driver in use: ath9k
    Kernel modules: ath9k