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SubjectRe: system keeps freezing once every 24 hours / random apps crashing
Mark v Wolher wrote:
> Mark v Wolher wrote:
>
>>Jesper Juhl wrote:
>>
>>
>>>On 12/31/05, Mark v Wolher <trilight@ns666.com> wrote:
>>>
>>>
>>>
>>>>Jesper Juhl wrote:
>>>>
>>>>
>>>>
>>>>>On 12/31/05, Mark v Wolher <trilight@ns666.com> wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>g'morning !
>>>>>>
>>>>>>the memtest86 went 40 times over the memory, no errors detected.
>>>>>>
>>>>>
>>>>>Give memtest86+ a spin (http://www.memtest.org/) as well. memtest86 is
>>>>>good, but I've found in the past that memtest86+ sometimes finds
>>>>>errors that memtest86 does not, so giving both a sin fo an extended
>>>>>period of time is usually a good idea.
>>>>>Also, make sure you enable all the tests of both tools.
>>>>
>>>>Hi Jesper,
>>>>
>>>>Oh i thought they were the same, i used memtest86+ which comes with
>>>>debian and not the "older" memtest86.
>>>>
>>>>Right now i booted the kernel with nomce since one never knows with dell
>>>
>>>
>>>Surpressing MCE's (Machine Check Exceptions) is a really bad idea
>>>usually. MCE's indicate a hardware problem, so unless it's known that
>>>a certain MCE is reported wrongly they should *not* be ignored.
>>
>>
>>Hi Jesper,
>>
>>Yes, i rather not disable it, but since i found some reports also
>>related to dell machines which somehow do not follow always the standard
>>this caused false exceptions on them. I'll re-enable it, and see if the
>>update of the intel microcode made a difference. I have now only the nv
>>module loaded. If a crash occurs i'll open the box and remove the tvcard.
>>
>>Also, i wonder, i downloaded the DSDT table from the bios and when i
>>recompiled it with IASL from intel it showed 7 errors, one of them
>>related to DMA. It is known that alot of companies like Dell use
>>microsoft compilers which easily skip such errors or not report them,
>>this is what i read.
>>
>>I'm pasting the DSDT errors occured during recompile, who knows, this
>>could also a help a little bit.
>>
>>DSDT Table / Recompile:
>>
>>Intel ACPI Component Architecture
>>ASL Optimizing Compiler version 20050930 [Dec 15 2005]
>>Copyright (C) 2000 - 2005 Intel Corporation
>>Supports ACPI Specification Revision 3.0
>>
>>dsdt.dsl 338: Notify (\_SB.PCI0.USB0, 0x02)
>>Error 1061 - Object does not exist ^ (\_SB.PCI0.USB0)
>>
>>dsdt.dsl 351: Notify (\_SB.PCI0.USB1, 0x02)
>>Error 1061 - Object does not exist ^ (\_SB.PCI0.USB1)
>>
>>dsdt.dsl 364: Notify (\_SB.PCI0.USB2, 0x02)
>>Error 1061 - Object does not exist ^ (\_SB.PCI0.USB2)
>>
>>dsdt.dsl 377: Notify (\_SB.PCI0, 0x02)
>>Error 1061 - Object does not exist ^ (\_SB.PCI0)
>>
>>dsdt.dsl 384: Notify (\_SB.PCI0.PCI4, 0x02)
>>Error 1061 - Object does not exist ^ (\_SB.PCI0.PCI4)
>>
>>dsdt.dsl 400: Notify (\_SB.PCI0.ISA.KBD, 0x02)
>>Error 1061 - Object does not exist ^ (\_SB.PCI0.ISA.KBD)
>>
>>dsdt.dsl 1784: Device (DMA)
>>Error 1094 - ^ syntax error, unexpected
>>PARSEOP_DMA, expecting PARSEOP_NAMESEG or PARSEOP_NAMESTRING
>>
>>ASL Input: dsdt.dsl - 3096 lines, 93624 bytes, 515 keywords
>>Compilation complete. 7 Errors, 0 Warnings, 0 Remarks, 53 Optimizations
>>
>>
>>====
>>
>>LSUSB:
>>Bus 004 Device 002: ID 0d8c:0001 C-Media Electronics, Inc.
>>Bus 004 Device 001: ID 0000:0000
>>Bus 003 Device 003: ID 051d:0002 American Power Conversion Back-UPS Pro
>>500/1000/1500
>>Bus 003 Device 002: ID 046d:c00e Logitech, Inc. Optical Mouse
>>Bus 003 Device 001: ID 0000:0000
>>Bus 002 Device 001: ID 0000:0000
>>Bus 001 Device 001: ID 0000:0000
>>
>>
>>=====
>>
>>cat /proc/meminfo:
>>
>>MemTotal: 512548 kB
>>MemFree: 10684 kB
>>Buffers: 17252 kB
>>Cached: 221508 kB
>>SwapCached: 10120 kB
>>Active: 355392 kB
>>Inactive: 49652 kB
>>HighTotal: 0 kB
>>HighFree: 0 kB
>>LowTotal: 512548 kB
>>LowFree: 10684 kB
>>SwapTotal: 4883680 kB
>>SwapFree: 4739048 kB
>>Dirty: 132 kB
>>Writeback: 0 kB
>>Mapped: 347756 kB
>>Slab: 49344 kB
>>CommitLimit: 5139952 kB
>>Committed_AS: 635544 kB
>>PageTables: 2108 kB
>>VmallocTotal: 515796 kB
>>VmallocUsed: 25556 kB
>>VmallocChunk: 486608 kB
>>
>>=====
>>
>>cat /proc/cpuinfo:
>>
>>processor : 0
>>vendor_id : GenuineIntel
>>cpu family : 15
>>model : 2
>>model name : Intel(R) Xeon(TM) CPU 2.40GHz
>>stepping : 9
>>cpu MHz : 2392.630
>>cache size : 512 KB
>>physical id : 0
>>siblings : 2
>>core id : 0
>>cpu cores : 1
>>fdiv_bug : no
>>hlt_bug : no
>>f00f_bug : no
>>coma_bug : no
>>fpu : yes
>>fpu_exception : yes
>>cpuid level : 2
>>wp : yes
>>flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
>>cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
>>bogomips : 4791.93
>>
>>processor : 1
>>vendor_id : GenuineIntel
>>cpu family : 15
>>model : 2
>>model name : Intel(R) Xeon(TM) CPU 2.40GHz
>>stepping : 9
>>cpu MHz : 2392.630
>>cache size : 512 KB
>>physical id : 0
>>siblings : 2
>>core id : 0
>>cpu cores : 1
>>fdiv_bug : no
>>hlt_bug : no
>>f00f_bug : no
>>coma_bug : no
>>fpu : yes
>>fpu_exception : yes
>>cpuid level : 2
>>wp : yes
>>flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
>>cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
>>bogomips : 4784.99
>>
>>processor : 2
>>vendor_id : GenuineIntel
>>cpu family : 15
>>model : 2
>>model name : Intel(R) Xeon(TM) CPU 2.40GHz
>>stepping : 9
>>cpu MHz : 2392.630
>>cache size : 512 KB
>>physical id : 3
>>siblings : 2
>>core id : 3
>>cpu cores : 1
>>fdiv_bug : no
>>hlt_bug : no
>>f00f_bug : no
>>coma_bug : no
>>fpu : yes
>>fpu_exception : yes
>>cpuid level : 2
>>wp : yes
>>flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
>>cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
>>bogomips : 4785.12
>>
>>processor : 3
>>vendor_id : GenuineIntel
>>cpu family : 15
>>model : 2
>>model name : Intel(R) Xeon(TM) CPU 2.40GHz
>>stepping : 9
>>cpu MHz : 2392.630
>>cache size : 512 KB
>>physical id : 3
>>siblings : 2
>>core id : 3
>>cpu cores : 1
>>fdiv_bug : no
>>hlt_bug : no
>>f00f_bug : no
>>coma_bug : no
>>fpu : yes
>>fpu_exception : yes
>>cpuid level : 2
>>wp : yes
>>flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
>>cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
>>bogomips : 4785.12
>>
>>=====
>>
>>lspci -v:
>>0000:00:00.0 Host bridge: Intel Corporation E7505 Memory Controller Hub
>>(rev 03)
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, fast devsel, latency 0
>> Memory at e8000000 (32-bit, prefetchable) [size=128M]
>> Capabilities: [40] #09 [0104]
>> Capabilities: [a0] AGP version 3.0
>>
>>0000:00:01.0 PCI bridge: Intel Corporation E7505/E7205 PCI-to-AGP Bridge
>>(rev 03) (prog-if 00 [Normal decode])
>> Flags: bus master, 66MHz, fast devsel, latency 64
>> Memory at e0000000 (32-bit, prefetchable) [size=128M]
>> Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
>> Memory behind bridge: fc000000-fdffffff
>> Prefetchable memory behind bridge: f0000000-f7ffffff
>> Capabilities: [60] #0e [0035]
>>
>>0000:00:02.0 PCI bridge: Intel Corporation E7505 Hub Interface B
>>PCI-to-PCI Bridge (rev 03) (prog-if 00 [Normal decode])
>> Flags: bus master, 66MHz, fast devsel, latency 64
>> Bus: primary=00, secondary=02, subordinate=04, sec-latency=0
>> I/O behind bridge: 0000e000-0000efff
>> Memory behind bridge: fe300000-fe6fffff
>>
>>0000:00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM
>>(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) (prog-if 00 [UHCI])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 0, IRQ 21
>> I/O ports at ff80 [size=32]
>>
>>0000:00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM
>>(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01) (prog-if 00 [UHCI])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 0, IRQ 22
>> I/O ports at ff60 [size=32]
>>
>>0000:00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM
>>(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01) (prog-if 00 [UHCI])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 0, IRQ 18
>> I/O ports at ff40 [size=32]
>>
>>0000:00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M)
>>USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 0, IRQ 20
>> Memory at fe700800 (32-bit, non-prefetchable) [size=1K]
>> Capabilities: [50] Power Management version 2
>> Capabilities: [58] #0a [2080]
>>
>>0000:00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
>>(prog-if 00 [Normal decode])
>> Flags: bus master, fast devsel, latency 0
>> Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
>> I/O behind bridge: 0000d000-0000dfff
>> Memory behind bridge: fe100000-fe2fffff
>> Prefetchable memory behind bridge: f8000000-f80fffff
>>
>>0000:00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC
>>Interface Bridge (rev 01)
>> Flags: bus master, medium devsel, latency 0
>>0000:00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE
>>Controller (rev 01) (prog-if 8a [Master SecP PriP])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 0, IRQ 18
>> I/O ports at <unassigned>
>> I/O ports at <unassigned>
>> I/O ports at <unassigned>
>> I/O ports at <unassigned>
>> I/O ports at ffa0 [size=16]
>> Memory at 30000000 (32-bit, non-prefetchable) [size=1K]
>>
>>0000:00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM
>>(ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
>> Subsystem: Dell: Unknown device 012c
>> Flags: medium devsel, IRQ 4
>> I/O ports at cc80 [size=32]
>>
>>0000:00:1f.5 Multimedia audio controller: Intel Corporation
>>82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 0, IRQ 23
>> I/O ports at c800 [size=256]
>> I/O ports at cc40 [size=64]
>> Memory at fe700400 (32-bit, non-prefetchable) [size=512]
>> Memory at fe700000 (32-bit, non-prefetchable) [size=256]
>> Capabilities: [50] Power Management version 2
>>
>>0000:01:00.0 VGA compatible controller: nVidia Corporation NV34GL
>>[Quadro FX 500/600 PCI] (rev a1) (prog-if 00 [VGA])
>> Subsystem: nVidia Corporation: Unknown device 01ba
>> Flags: bus master, 66MHz, medium devsel, latency 248, IRQ 21
>> Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
>> Memory at f0000000 (32-bit, prefetchable) [size=128M]
>> Expansion ROM at fd000000 [disabled] [size=128K]
>> Capabilities: [60] Power Management version 2
>> Capabilities: [44] AGP version 3.0
>>
>>0000:02:1c.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
>>(prog-if 20 [IO(X)-APIC])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, 66MHz, fast devsel, latency 0
>> Memory at fe3ff000 (32-bit, non-prefetchable) [size=4K]
>> Capabilities: [50] PCI-X non-bridge device.
>>
>>0000:02:1d.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge
>>(rev 04) (prog-if 00 [Normal decode])
>> Flags: bus master, 66MHz, fast devsel, latency 64
>> Bus: primary=02, secondary=03, subordinate=03, sec-latency=48
>> I/O behind bridge: 0000e000-0000efff
>> Memory behind bridge: fe500000-fe6fffff
>> Capabilities: [50] PCI-X bridge device.
>>
>>0000:02:1e.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
>>(prog-if 20 [IO(X)-APIC])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, 66MHz, fast devsel, latency 0
>> Memory at fe3fe000 (32-bit, non-prefetchable) [size=4K]
>> Capabilities: [50] PCI-X non-bridge device.
>>
>>0000:02:1f.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge
>>(rev 04) (prog-if 00 [Normal decode])
>> Flags: bus master, 66MHz, fast devsel, latency 64
>> Bus: primary=02, secondary=04, subordinate=04, sec-latency=64
>> Capabilities: [50] PCI-X bridge device.
>>
>>0000:03:0d.0 Mass storage controller: Promise Technology, Inc. 20269
>>(rev 02) (prog-if 85)
>> Subsystem: Promise Technology, Inc. Ultra133TX2
>> Flags: bus master, 66MHz, slow devsel, latency 64, IRQ 19
>> I/O ports at ecf8 [size=8]
>> I/O ports at ecf0 [size=4]
>> I/O ports at ece0 [size=8]
>> I/O ports at ecd8 [size=4]
>> I/O ports at ecc0 [size=16]
>> Memory at fe5fc000 (32-bit, non-prefetchable) [size=16K]
>> Expansion ROM at fe600000 [disabled] [size=16K]
>> Capabilities: [60] Power Management version 1
>>
>>0000:03:0e.0 Ethernet controller: Intel Corporation 82545EM Gigabit
>>Ethernet Controller (Copper) (rev 01)
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
>> Memory at fe5c0000 (64-bit, non-prefetchable) [size=128K]
>> I/O ports at ec80 [size=64]
>> Capabilities: [dc] Power Management version 2
>> Capabilities: [e4] PCI-X non-bridge device.
>> Capabilities: [f0] Message Signalled Interrupts: 64bit+
>>Queue=0/0 Enable-
>>
>>0000:05:0c.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A
>>IEEE-1394a-2000 Controller (PHY/Link) (prog-if 10 [OHCI])
>> Subsystem: Dell: Unknown device 012c
>> Flags: bus master, medium devsel, latency 64, IRQ 4
>> Memory at fe1ff800 (32-bit, non-prefetchable) [size=2K]
>> Memory at fe1f8000 (32-bit, non-prefetchable) [size=16K]
>> Capabilities: [44] Power Management version 2
>>
>>0000:05:0d.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1
>>(rev 07)
>> Subsystem: Creative Labs SBLive! 5.1 Model SB0100
>> Flags: bus master, medium devsel, latency 64, IRQ 24
>> I/O ports at dce0 [size=32]
>> Capabilities: [dc] Power Management version 1
>>
>>0000:05:0d.1 Input device controller: Creative Labs SB Live! MIDI/Game
>>Port (rev 07)
>> Subsystem: Creative Labs Gameport Joystick
>> Flags: bus master, medium devsel, latency 64
>> I/O ports at dcd8 [size=8]
>> Capabilities: [dc] Power Management version 1
>>
>>0000:05:0e.0 Multimedia video controller: Brooktree Corporation Bt878
>>Video Capture (rev 02)
>> Subsystem: TERRATEC Electronic GmbH: Unknown device 1134
>> Flags: bus master, medium devsel, latency 64, IRQ 17
>> Memory at f80ff000 (32-bit, prefetchable) [size=4K]
>>
>>0000:05:0e.1 Multimedia controller: Brooktree Corporation Bt878 Audio
>>Capture (rev 02)
>> Subsystem: TERRATEC Electronic GmbH: Unknown device 1134
>> Flags: bus master, medium devsel, latency 64, IRQ 10
>> Memory at f80fe000 (32-bit, prefetchable) [size=4K]
>>
>>
>>====
>>
>>ver_linux script output:
>>If some fields are empty or look unusual you may have an old version.
>>Compare to the current minimal requirements in Documentation/Changes.
>>
>>Linux sigma-9 2.6.14.5 #5 SMP Fri Dec 30 19:50:12 CET 2005 i686 GNU/Linux
>>
>>Gnu C 3.3.5
>>Gnu make 3.80
>>binutils 2.15
>>util-linux 2.12p
>>mount 2.12p
>>module-init-tools 3.2-pre1
>>e2fsprogs 1.37
>>reiserfsprogs line
>>reiser4progs line
>>PPP 2.4.3
>>nfs-utils 1.0.6
>>Linux C Library 2.3.2
>>Dynamic linker (ldd) 2.3.2
>>Procps 3.2.1
>>Net-tools 1.60
>>Console-tools 0.2.3
>>Sh-utils 5.2.1
>>udev 056
>>Modules Loaded nv
>>
>>
>>====
>>
>>results of memtest86+ after 40 passes with all tests enabled: no errors
>>
>>====
>>
>>cat /proc/interrupts:
>> CPU0 CPU1 CPU2 CPU3
>> 0: 501324 492735 492754 492100 IO-APIC-edge timer
>> 1: 2555 2761 2861 2451 IO-APIC-edge i8042
>> 7: 0 0 0 0 IO-APIC-edge parport0
>> 8: 2369118 2386295 2363140 2356586 IO-APIC-edge rtc
>> 9: 0 0 0 0 IO-APIC-level acpi
>> 14: 21 0 0 0 IO-APIC-edge ide0
>> 15: 13 0 0 0 IO-APIC-edge ide1
>> 16: 28924 0 0 0 IO-APIC-level eth0
>> 17: 97407 105474 103650 103304 IO-APIC-level bttv0
>> 18: 48 4 0 7 IO-APIC-level
>>uhci_hcd:usb4
>> 19: 28880 54020 48433 23791 IO-APIC-level ide2, ide3
>> 20: 6 0 1 0 IO-APIC-level
>>ehci_hcd:usb1
>> 21: 398859 319390 317707 425780 IO-APIC-level
>>uhci_hcd:usb2, nv
>> 22: 200970 244113 220837 191613 IO-APIC-level
>>uhci_hcd:usb3
>> 23: 0 0 0 0 IO-APIC-level Intel
>>82801DB-ICH4
>> 24: 9460 9468 12491 8706 IO-APIC-level EMU10K1
>>NMI: 0 0 0 0
>>LOC: 1978858 1979111 1979110 1979109
>>ERR: 0
>>MIS: 0
>>
>>
>>====
>>
>>2.6.14.5 vanilla kernel .config file see attachment
>>
>>====
>>
>>I hope this gives more complete picture of the current running setup.
>>
>>
>
>
> Ok, got some more data now, i did recompile the kernel with alot of
> debugging options turned on in kernel hacking section.
>
> Maybe because of those debugging options the system won't freeze quickly
> but rather display the errors and continue to run, because of
> detect_soft_lockups and nmi watchdog i think.
>
> Here is new data, this time it had to do with bttv:
>
> Dec 31 16:11:35 localhost kernel: Unable to handle kernel paging request at
> virtual address d162e000
> Dec 31 16:11:35 localhost kernel: printing eip:
> Dec 31 16:11:35 localhost kernel: c036037a
> Dec 31 16:11:35 localhost kernel: *pgd = 46063
> Dec 31 16:11:35 localhost kernel: *pmd = 46063
> Dec 31 16:11:35 localhost kernel: *pte = 1162e000
> Dec 31 16:11:35 localhost kernel: Oops: 0002 [#1]
> Dec 31 16:11:35 localhost kernel: SMP DEBUG_PAGEALLOC
> Dec 31 16:11:35 localhost kernel: Modules linked in: nv
> Dec 31 16:11:35 localhost kernel: CPU: 2
> Dec 31 16:11:35 localhost kernel: EIP: 0060:[bttv_risc_packed+394/432]
> Not tainted VLI
> Dec 31 16:11:35 localhost kernel: EFLAGS: 00210202 (2.6.14.5)
> Dec 31 16:11:35 localhost kernel: eax: 14000008 ebx: d5ce9800 ecx:
> d162e000 edx: 00000008
> Dec 31 16:11:35 localhost kernel: esi: 00000008 edi: 000000ff ebp:
> cd06dde8 esp: cd06ddd0
> Dec 31 16:11:35 localhost kernel: ds: 007b es: 007b ss: 0068
> Dec 31 16:11:35 localhost kernel: Process xawtv (pid: 31110,
> threadinfo=cd06c000 task=ca871aa0)
> Dec 31 16:11:35 localhost kernel: Stack: df80bbf8 c3b25fbc 00000fd0 00000c00
> 000d8000 c3b25ef8 cd06de40 c0361b0b
> Dec 31 16:11:35 localhost kernel: c06ccba0 c3b25fbc d5ce8000 00000c00
> 00000c00 00000c00 00000120 000001b1
> Dec 31 16:11:35 localhost kernel: 00000008 c3b25f1c c06cd168 00000000
> cd06de40 c037022a df80bbf8 c3b25f1c
> Dec 31 16:11:35 localhost kernel: Call Trace:
> Dec 31 16:11:35 localhost kernel: [show_stack+127/160]
> Dec 31 16:11:35 localhost kernel: [show_registers+347/448]
> Dec 31 16:11:35 localhost kernel: [die+256/384]
> Dec 31 16:11:35 localhost kernel: [do_page_fault+1084/2083]
> Dec 31 16:11:35 localhost kernel: [error_code+79/96]
> Dec 31 16:11:35 localhost kernel: [bttv_buffer_risc+1371/1696]
> Dec 31 16:11:35 localhost kernel: [bttv_prepare_buffer+268/464]
> Dec 31 16:11:35 localhost kernel: [buffer_prepare+69/80]
> Dec 31 16:11:35 localhost kernel: [videobuf_read_zerocopy+108/304]
> Dec 31 16:11:35 localhost kernel: [videobuf_read_one+522/560]
> Dec 31 16:11:35 localhost kernel: [bttv_read+272/352]
> Dec 31 16:11:35 localhost kernel: [vfs_read+213/432]
> Dec 31 16:11:35 localhost kernel: [sys_read+75/128]
> Dec 31 16:11:35 localhost kernel: [syscall_call+7/11]
> Dec 31 16:11:35 localhost kernel: Code: 00 0d 00 00 00 10 89 01 8b 43 08 83
> c1 04 89 01 8b 43 0c 83 c1 04 83 c3 10 29 c2 8b 43 0c 39 c2 77 df 89 d0 89
> d6 0d 00 00 00 14 <89> 01 8b 43 08 83 c1 04 89 01 83 c1 04 eb 8a 8d b4 26 00
> 00 00
>
>
>
>

(please don't see nv as any module, a copy/paste accident of mine while
commenting my log)

I just had xchat crash, nothing in the log, it just disappeared.
The system is now very slow but i guess that's because of the debugging
options enabled.

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