Debugging a system crash

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Debugging a system crash

Postby LAPB » Thu May 23, 2013 3:52

Hai, i installed sabayon the saturday, and i didnt know where else to post, so here it goes..
My system freezes every once in a while. i had this problem with mint (see http://forums.linuxmint.com/viewtopic.php?f=109&t=130440) on kernel 3.5.0 and then i decided to update (not specifically to fix this) to 3.8.10 still happened, both kernels 32 bit. i didnt have much luck, so i gave up for a bit. then i found sabayon and the saturday installed it. the sunday i came to realize my cpu was 64 bit capable, so i switched to 64 bit edition, it still happens. i havent been able to tell what special thing im doing when this happens, but heres the you could say symptoms:
- lock keys (num/caps/scroll) dont work
- following key combos dont (although im not really sure) work: ctrl+alt+del/backspace, ctrl+alt+f1, alt+print, screen/sysRq+reisub. will check next time
- once i was listening to a song and the sound looped
- other times it outputted static
- the leds (num/caps/scroll lock) dont change their state
- a friend told me to use windows for a week and see if it happened, im not sure anymore but, it didnt
once or twice it just rebooted instead of freezing

correct me if im wrong:
- ctrl+alt+f1-f6 ---> switches to virtual consoles
- ctrl+alt+f7/f8 ---> switches to the console in which X is running
- ctrl+alt+backspace ---> Kills X
- ctrl+alt+del (supr on latin keyboards) ---> Signals the init process (usually configured to soft reboot)
- altGr (this has to be used instead of alt else a screenshot will be dumped) +print screen/sysRq+<key> executes a command (possible keys and their commands available in Wikipedia)

if all this fails it can be safely assumed that the kernel died?


how can this be further debugged?

oh and im using KDE

thanks in advance and hope this also helps someone
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LAPB
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Re: Debugging a system crash

Postby dunsurfin » Thu May 23, 2013 8:07

Welcome to the Sabayon forums.

It will help if you can give details of your system and which version of SL (I know you have mentioned KDE but did you install from a recent iso and have you updated?).
The logs that may hold a clue are dmesg (type dmesg into your terminal), kdm.log, rc.log, Xorg.0.log (the last three are in /var/log and I recommend
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kdesu dolphin
to copy them somewhere to look at). There is also .xsession-errors which is in your home directory (you need to have "show hidden files" checked).
I may well have missed something but I'm sure someone else will correct that error. :)

At a guess it sounds as though you may have a hardware problem - something as simple as a loose connection or something as serious as a failing capacitor on your motherboard. :(
Self-righteousness is a loud din raised to drown the voice of guilt within us - Eric Hoffer

Don't believe what it says on the right - I am anything but sagely; More oniony!
dunsurfin
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Posts: 1333
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Location: Newcastle upon Tyne UK

Re: Debugging a system crash

Postby LAPB » Thu May 23, 2013 16:03

Hai and thanks

output of inxi -Fxz
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System:    Host: PC Kernel: 3.9.0-sabayon x86_64 (64 bit, gcc: 4.7.2)
           Desktop: Xfce 4.10.2 (Gtk 2.24.17) Distro: Sabayon Linux amd64 13.06
Machine:   System: Compaq-Presario product: KC870AA-ABM SG3207LA
           Mobo: ECS model: Iris8 version: 1.0 Bios: Phoenix version: 5.22 date: 01/03/2008
CPU:       Dual core AMD Athlon X2 BE-2300 (-MCP-) cache: 1024 KB flags: (lm nx sse sse2 sse3 svm) bmips: 4018.48
           Clock Speeds: 1: 1000.00 MHz 2: 1000.00 MHz
Graphics:  Card: NVIDIA GF108 [GeForce GT 440] bus-ID: 02:00.0 X.Org: 1.13.3 driver: nvidia Resolution: [email protected]
           GLX Renderer: GeForce GT 440/PCIe/SSE2 GLX Version: 4.3.0 NVIDIA 313.30 Direct Rendering: Yes
Audio:     Card-1: NVIDIA GF108 High Definition Audio Controller driver: snd_hda_intel bus-ID: 02:00.1
           Card-2: NVIDIA MCP61 High Definition Audio driver: snd_hda_intel bus-ID: 00:05.0
           Sound: Advanced Linux Sound Architecture ver: k3.9.0-sabayon
Network:   Card: NVIDIA MCP61 Ethernet driver: forcedeth port: ec00 bus-ID: 00:07.0
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 500.1GB (9.1% used) 1: id: /dev/sda model: Hitachi_HDS72105 size: 500.1GB
Partition: ID: / size: 121G used: 8.7G (8%) fs: ext4 ID: /home size: 93G used: 34G (39%) fs: ext4
           ID: swap-1 size: 4.19GB used: 0.00GB (0%) fs: swap
RAID:      No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors:   System Temperatures: cpu: 40.0C mobo: N/A gpu: 0.0:39C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 193 Uptime: 25 min Memory: 832.9/1999.8MB Runlevel: 3 Gcc sys: 4.7.2
           Client: Shell (bash 4.2.37) inxi: 1.9.6


output of lspci -vv
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00:00.0 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a1)
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0
   Capabilities: <access denied>

00:01.0 ISA bridge: NVIDIA Corporation MCP61 LPC Bridge (rev a2)
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0

00:01.1 SMBus: NVIDIA Corporation MCP61 SMBus (rev a2)
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Interrupt: pin A routed to IRQ 255
   Region 0: I/O ports at fc00 [size=64]
   Region 4: I/O ports at 1c00 [size=64]
   Region 5: I/O ports at f400 [size=64]
   Capabilities: <access denied>
   Kernel driver in use: nForce2_smbus

00:01.2 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a2)
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
   Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev a3) (prog-if 10 [OHCI])
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0 (750ns min, 250ns max)
   Interrupt: pin A routed to IRQ 22
   Region 0: Memory at fe02f000 (32-bit, non-prefetchable) [size=4K]
   Capabilities: <access denied>
   Kernel driver in use: ohci_hcd

00:02.1 USB controller: NVIDIA Corporation MCP61 USB 2.0 Controller (rev a3) (prog-if 20 [EHCI])
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0 (750ns min, 250ns max)
   Interrupt: pin B routed to IRQ 21
   Region 0: Memory at fe02e000 (32-bit, non-prefetchable) [size=256]
   Capabilities: <access denied>
   Kernel driver in use: ehci-pci

00:04.0 PCI bridge: NVIDIA Corporation MCP61 PCI bridge (rev a1) (prog-if 01 [Subtractive decode])
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0
   Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
   I/O behind bridge: 0000c000-0000cfff
   Memory behind bridge: fde00000-fdefffff
   Prefetchable memory behind bridge: fdf00000-fdffffff
   Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
   BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
      PriDiscTmr- SecDiscTmr+ DiscTmrStat- DiscTmrSERREn-
   Capabilities: <access denied>

00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2)
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0 (500ns min, 1250ns max)
   Interrupt: pin B routed to IRQ 22
   Region 0: Memory at fe028000 (32-bit, non-prefetchable) [size=16K]
   Capabilities: <access denied>
   Kernel driver in use: snd_hda_intel

00:06.0 IDE interface: NVIDIA Corporation MCP61 IDE (rev a2) (prog-if 8a [Master SecP PriP])
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0 (750ns min, 250ns max)
   Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
   Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable)
   Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
   Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable)
   Region 4: I/O ports at f000 [size=16]
   Capabilities: <access denied>
   Kernel driver in use: pata_amd

00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0 (250ns min, 5000ns max)
   Interrupt: pin A routed to IRQ 43
   Region 0: Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
   Region 1: I/O ports at ec00 [size=8]
   Capabilities: <access denied>
   Kernel driver in use: forcedeth

00:08.0 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2) (prog-if 85 [Master SecO PriO])
   Subsystem: Hewlett-Packard Company Device 2a5c
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0 (750ns min, 250ns max)
   Interrupt: pin A routed to IRQ 23
   Region 0: I/O ports at 09f0 [size=8]
   Region 1: I/O ports at 0bf0 [size=4]
   Region 2: I/O ports at 0970 [size=8]
   Region 3: I/O ports at 0b70 [size=4]
   Region 4: I/O ports at d800 [size=16]
   Region 5: Memory at fe02c000 (32-bit, non-prefetchable) [size=4K]
   Capabilities: <access denied>
   Kernel driver in use: sata_nv

00:09.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) (prog-if 00 [Normal decode])
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0, Cache Line Size: 64 bytes
   Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
   I/O behind bridge: 0000b000-0000bfff
   Memory behind bridge: fb000000-fcffffff
   Prefetchable memory behind bridge: 00000000d0000000-00000000efffffff
   Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
   BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
      PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
   Capabilities: <access denied>
   Kernel driver in use: pcieport

00:0b.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) (prog-if 00 [Normal decode])
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0, Cache Line Size: 64 bytes
   Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
   I/O behind bridge: 0000a000-0000afff
   Memory behind bridge: fdd00000-fddfffff
   Prefetchable memory behind bridge: 00000000fdc00000-00000000fdcfffff
   Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
   BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
      PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
   Capabilities: <access denied>
   Kernel driver in use: pcieport

00:0c.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) (prog-if 00 [Normal decode])
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0, Cache Line Size: 64 bytes
   Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
   I/O behind bridge: 00009000-00009fff
   Memory behind bridge: fdb00000-fdbfffff
   Prefetchable memory behind bridge: 00000000fda00000-00000000fdafffff
   Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
   BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
      PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
   Capabilities: <access denied>
   Kernel driver in use: pcieport

00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
   Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Capabilities: <access denied>

00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
   Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
   Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
   Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Capabilities: <access denied>
   Kernel driver in use: k8temp

01:05.0 Communication controller: Conexant Systems, Inc. HSF 56k Data/Fax Modem
   Subsystem: Conexant Systems, Inc. Soft Data Fax Modem with SmartCP
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0
   Interrupt: pin A routed to IRQ 255
   Region 0: Memory at fdef0000 (32-bit, non-prefetchable) [size=64K]
   Region 1: I/O ports at cc00 [size=8]
   Capabilities: <access denied>

02:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. Device 2308
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0
   Interrupt: pin A routed to IRQ 16
   Region 0: Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
   Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
   Region 3: Memory at ee000000 (64-bit, prefetchable) [size=32M]
   Region 5: I/O ports at bc00 [size=128]
   [virtual] Expansion ROM at e0000000 [disabled] [size=512K]
   Capabilities: <access denied>
   Kernel driver in use: nvidia

02:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)
   Subsystem: Micro-Star International Co., Ltd. Device 2308
   Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0, Cache Line Size: 64 bytes
   Interrupt: pin B routed to IRQ 16
   Region 0: Memory at fcffc000 (32-bit, non-prefetchable) [size=16K]
   Capabilities: <access denied>
   Kernel driver in use: snd_hda_intel


output of hwinfo --short
Code: Select all
cpu:                                                           
                       AMD Athlon(tm) X2 Dual Core Processor BE-2300, 1800 MHz
                       AMD Athlon(tm) X2 Dual Core Processor BE-2300, 1800 MHz
keyboard:
  /dev/input/event2    AT Translated Set 2 keyboard
mouse:
  /dev/input/mice      ImPS/2 Generic Wheel Mouse
monitor:
                       Generic Monitor
graphics card:
                       nVidia VGA compatible controller
sound:
                       nVidia MCP61 High Definition Audio
                       nVidia Audio device
storage:
                       nVidia MCP61 IDE
                       nVidia MCP61 SATA Controller
network:
  eth0                 nVidia MCP61 Ethernet
network interface:
  lo                   Loopback network interface
  eth0                 Ethernet network interface
disk:
  /dev/sda             Hitachi HDS72105
  /dev/sdb             Kingston DT 101 G2
partition:
  /dev/sda1            Partition
  /dev/sda2            Partition
  /dev/sda3            Partition
  /dev/sda5            Partition
  /dev/sda6            Partition
  /dev/sda7            Partition
  /dev/sda8            Partition
  /dev/sdb1            Partition
  /dev/sdb2            Partition
cdrom:
  /dev/sr0             HL-DT-ST DVD-RAM GH10L
usb controller:
                       nVidia MCP61 USB Controller
                       nVidia MCP61 USB Controller
bios:
                       BIOS
bridge:
                       nVidia MCP61 LPC Bridge
                       nVidia MCP61 PCI bridge
                       nVidia MCP61 PCI Express bridge
                       AMD K8 [Athlon64/Opteron] HyperTransport Technology Configuration
                       AMD K8 [Athlon64/Opteron] Address Map
                       AMD K8 [Athlon64/Opteron] DRAM Controller
                       AMD K8 [Athlon64/Opteron] Miscellaneous Control
                       nVidia MCP61 PCI Express bridge
                       nVidia MCP61 PCI Express bridge
hub:
                       Linux 3.9.0-sabayon ohci_hcd OHCI Host Controller
                       Linux 3.9.0-sabayon ehci_hcd EHCI Host Controller
memory:
                       Main Memory
unknown:
                       FPU
                       DMA controller
                       PIC
                       Timer
                       Keyboard controller
                       PS/2 Controller
                       nVidia MCP61 Memory Controller
                       nVidia MCP61 SMBus
                       nVidia MCP61 Memory Controller
                       Conexant Soft Data Fax Modem with SmartCP


i couldnt get the 13.04 iso to boot (topic for another report, i thought it was my pc but then someone on irc had the same problem, hoping for that person to report the problem) so i used the latest daily build, and installed KDE edition from there, i performed a full system update right after installing

ill keep dmesg, kdm.log, rc.log, xorg.log and xsession-errors in mind

when this happens again should i boot from a liveCD (USB in my case) or mint, so the logs dont get polluted with other stuff?
Last edited by LAPB on Thu May 23, 2013 20:55, edited 3 times in total.
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Re: Debugging a system crash

Postby LAPB » Thu May 23, 2013 18:06

ok it happened again, sadly i did boot into my system cause it happened during a system upgrade that included KDE4.10.3,
i didnt wanna log into KDE to see a half updated DE, so logged into fluxbox, i was thinking more about trying to recover the half upgrade, so i forgot to boot into a live system.
anyway no key combo worked, not even magic sysRq, can i assume that the kernel died?
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Re: Debugging a system crash

Postby dave_64 » Thu May 23, 2013 19:09

I built a computer several years ago, and it crashed sometimes. I tried reseating cards and memory sticks, and checking my connections, installation issues, etc. But the crashes continued, usually after using it for at least 10 or 15 minutes, sometimes a half hour. I removed one of the memory sticks and it did not crash. I swapped the memory sticks and it would not boot. I checked it several times and I became convinced that one of the memory sticks was bad. I deduced that the crashes were occuring when memory use exceeded the first stick and started using the second one. I have not have any trouble since I replaced that memory stick.
Just a thought, and easy to check.
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Re: Debugging a system crash

Postby LAPB » Fri May 24, 2013 3:54

this time somthing different happened i came back from dinner and my system was put to sleep and the screen had been locked (i know cause i configured it that way) so i press a key to wake it up blank/black screen for a little while, during that while i tried to see if it was "alive" i pressed a lock (num/caps/scroll) key, and the led didnt switch its state, then the cpu beeped and the screen showed me something not too different from this but in colors, basically corrupted graphics, i tried the magic sysRq combo but it didnt work. this had happened like a couple of days ago but im not sure its the same problem

PD: why do i always forget about the logs? >_>, anyway i wasnt too late now

from Xorg.0.log.old
Code: Select all
[ 10625.704] (EE) NVIDIA(GPU-0): WAIT: (E, 0, 0x857d)
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Re: Debugging a system crash

Postby dunsurfin » Fri May 24, 2013 13:18

It all seems very like a hardware failure to me. It may be a good idea to run a thorough memory test.
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Re: Debugging a system crash

Postby LAPB » Fri May 24, 2013 14:49

hmm hardware failure...., makes sense

ok this time i remembered to get the logs

kdm.log
dmesg
rc.log
Xorg.0.log
xsession-errors
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Re: Debugging a system crash

Postby iScream » Fri May 24, 2013 18:59

Would like to join in.

Installed Sabayon 13.04 (all editions tested... huh), upon logout I have ~50% chance for it to show a dark sabayon background and a blinking _. The graphical part of the system crashes once in a while. Throughout one day it crashed at least 3-5 times. There I can switch to ttys, and log into root and do a 'reboot'.

Same on my friends' PC, and hardware is not faulty.

There are some other less serious but still annoying things about this distro for me but I still want to make it work. Most convenient of all in my opinion...
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Re: Debugging a system crash

Postby dave_64 » Fri May 24, 2013 19:12

You probably should start your own thread, or it gets confusing as to which problem we are working on. At any rate, I would suggest you give some details about your hardware, especially, your video card, but also DE (Desktop Environment, such as KDE, or Gnome, etc.). Video card information can be found by issueing this command at a root prompt:
lspci
Then look for the line that starts with the letters VGA.
Mine looks like this:
01:00.0 VGA compatible controller: NVIDIA Corporation GT215 [GeForce GT 240] (rev a2)
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