Description of problem: My machine will completely lock up pretty reliably when recording tv using mythtv. The lockup seems to trigger more quickly if there is more load on the machine while recording. The capture device is a bt878 based card. The mythtv binaries are built 32 bit. Most times there is no error output. Sometimes any shells I have open will have a one line broadcast that there is an Oops, but nothing has made it to the logs. On two occasions, however, this oops made it to the logs. I see the same lockups with kernel-2.6.14-1.1656_FC4, but no oops has made it to the logs thus far. Jan 8 21:02:23 coolaid kernel: Unable to handle kernel paging request at ffff81007b78767e RIP: Jan 8 21:02:23 coolaid kernel: <ffffffff8015d932>{free_block+131} Jan 8 21:02:23 coolaid kernel: PGD 8063 PUD 0 Jan 8 21:02:23 coolaid kernel: Oops: 0000 [1] Jan 8 21:02:23 coolaid kernel: CPU 0 Jan 8 21:02:23 coolaid kernel: Modules linked in: parport_pc lp parport autofs4 rfcomm l2cap bluetooth sunrpc ipv6 pcmcia yenta_socket rsrc_nonstatic pcmcia_core ipt_REJECT ipt_state ip_conntrack nfnetlink iptable_filter ip_tables ftdi_sio usbserial yealink dm_mod video button battery ac ohci_hcd ehci_hcd tuner tvaudio msp3400 bttv video_buf i2c_algo_bit v4l2_common btcx_risc tveeprom videodev snd_bt87x i2c_nforce2 i2c_core shpchp snd_cmipci gameport snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_opl3_lib snd_timer snd_hwdep snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore forcedeth floppy ext3 jbd sata_nv libata sd_mod scsi_mod Jan 8 21:02:23 coolaid kernel: Pid: 180, comm: kswapd0 Not tainted 2.6.14-1.1653_FC4 #1 Jan 8 21:02:23 coolaid kernel: RIP: 0010:[<ffffffff8015d932>] <ffffffff8015d932>{free_block+131} Jan 8 21:02:23 coolaid kernel: RSP: 0018:ffff81003fa21b88 EFLAGS: 00010046 Jan 8 21:02:23 coolaid kernel: RAX: ffff81007b787676 RBX: ffff81003ffe4cb0 RCX: 00000000000fb778 Jan 8 21:02:23 coolaid kernel: RDX: ffff810006d33000 RSI: ffff8100047d9000 RDI: ffff8100047d93f8 Jan 8 21:02:23 coolaid kernel: RBP: ffff81003ffec900 R08: ffff81003ffeb840 R09: 0000000000000026 Jan 8 21:02:23 coolaid kernel: R10: ffff81001bc9d870 R11: ffffffff8805a4f4 R12: 0000000000000011 Jan 8 21:02:23 coolaid kernel: R13: 000000000000003c R14: 0000000000000000 R15: ffff81003ffeb888 Jan 8 21:02:23 coolaid kernel: FS: 00002aaaaace3b60(0000) GS:ffffffff804f7000(0000) knlGS:00000000f79c1bb0 Jan 8 21:02:23 coolaid kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Jan 8 21:02:23 coolaid kernel: CR2: ffff81007b78767e CR3: 000000003747b000 CR4: 00000000000006e0 Jan 8 21:02:23 coolaid kernel: Process kswapd0 (pid: 180, threadinfo ffff81003fa20000, task ffff81003f9b6040) Jan 8 21:02:23 coolaid kernel: Stack: ffff81003ffeed40 000000000000003c ffff81003ffe4c28 ffff81003ffec900 Jan 8 21:02:23 coolaid kernel: ffff81003ffe4c00 ffffffff8015dce4 ffff81003fa21bf8 ffff81003ffe4c00 Jan 8 21:02:23 coolaid kernel: 0000000000000246 ffff81001bc9d870 Jan 8 21:02:23 coolaid kernel: Call Trace:<ffffffff8015dce4>{cache_flusharray+118} <ffffffff8015d7e0>{kmem_cache_free+42} Jan 8 21:02:23 coolaid kernel: <ffffffff8017625c>{free_buffer_head+42} <ffffffff80176583>{try_to_free_buffers+150} Jan 8 21:02:23 coolaid kernel: <ffffffff80160c61>{shrink_zone+2883} <ffffffff801a3b20>{mb_cache_shrink_fn+123} Jan 8 21:02:23 coolaid kernel: <ffffffff8033175b>{_spin_lock_irqsave+9} <ffffffff8016122a>{balance_pgdat+571} Jan 8 21:02:23 coolaid kernel: <ffffffff801614ad>{kswapd+269} <ffffffff801462d0>{autoremove_wake_function+0} Jan 8 21:02:23 coolaid kernel: <ffffffff803317b8>{_spin_unlock_irq+9} <ffffffff8012e6bb>{schedule_tail+66} Jan 8 21:02:23 coolaid kernel: <ffffffff8010f20e>{child_rip+8} <ffffffff801613a0>{kswapd+0} Jan 8 21:02:23 coolaid kernel: <ffffffff8010f206>{child_rip+0} Jan 8 21:02:23 coolaid kernel: Jan 8 21:02:23 coolaid kernel: Code: 48 3b 70 08 74 0a 0f 0b 68 82 4f 35 80 c2 a6 00 48 89 50 08 Jan 8 21:02:23 coolaid kernel: RIP <ffffffff8015d932>{free_block+131} RSP <ffff81003fa21b88> And some lspci -vvv output for you: 00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) Subsystem: ASUSTeK Computer Inc.: Unknown device 815a Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Capabilities: [44] HyperTransport: Slave or Primary Interface Command: BaseUnitID=0 UnitCnt=15 MastHost- DefDir- DUL- Link Control 0: CFlE+ CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b- Link Config 0: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn- Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b- Link Config 1: MLWI=8bit DwFcIn- MLWO=8bit DwFcOut- LWI=8bit DwFcInEn- LWO=8bit DwFcOutEn- Revision ID: 1.03 Link Frequency 0: 1.0GHz Link Error 0: <Prot- <Ovfl- <EOC- CTLTm- Link Frequency Capability 0: 200MHz+ 300MHz+ 400MHz+ 500MHz+ 600MHz+ 800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend- Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD- Link Frequency 1: 200MHz Link Error 1: <Prot- <Ovfl- <EOC- CTLTm- Link Frequency Capability 1: 200MHz- 300MHz- 400MHz- 500MHz- 600MHz- 800MHz- 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend- Error Handling: PFlE+ OFlE+ PFE- OFE- EOCFE- RFE- CRCFE- SERRFE- CF- RE- PNFE- ONFE- EOCNFE- RNFE- CRCNFE- SERRNFE- Prefetchable memory behind bridge Upper: 00-00 Bus Number: 00 Capabilities: [e0] HyperTransport: MSI Mapping 00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 5 Region 0: I/O ports at dc00 [size=32] Region 4: I/O ports at 4c00 [size=64] Region 5: I/O ports at 4c40 [size=64] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) (prog-if 10 [OHCI]) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (750ns min, 250ns max) Interrupt: pin A routed to IRQ 217 Region 0: Memory at c8103000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) (prog-if 20 [EHCI]) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (750ns min, 250ns max) Interrupt: pin B routed to IRQ 66 Region 0: Memory at feb00000 (32-bit, non-prefetchable) [size=256] Capabilities: [44] Debug port Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2) (prog-if 8a [Master SecP PriP]) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (750ns min, 250ns max) Region 4: I/O ports at f000 [size=16] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) (prog-if 85 [Master SecO PriO]) Subsystem: ASUSTeK Computer Inc.: Unknown device 815a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (750ns min, 250ns max) Interrupt: pin A routed to IRQ 217 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 c8102000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) (prog-if 85 [Master SecO PriO]) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (750ns min, 250ns max) Interrupt: pin A routed to IRQ 225 Region 0: I/O ports at 09e0 [size=8] Region 1: I/O ports at 0be0 [size=4] Region 2: I/O ports at 0960 [size=8] Region 3: I/O ports at 0b60 [size=4] Region 4: I/O ports at c400 [size=16] Region 5: Memory at c8101000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Bus: primary=00, secondary=05, subordinate=05, sec-latency=128 I/O behind bridge: 0000a000-0000afff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: c8000000-c80fffff Secondary status: 66Mhz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- 00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3) Subsystem: ASUSTeK Computer Inc. K8N4-E Mainboard Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (250ns min, 5000ns max) Interrupt: pin A routed to IRQ 233 Region 0: Memory at c8100000 (32-bit, non-prefetchable) [size=4K] Region 1: I/O ports at b000 [size=8] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable+ DSel=0 DScale=0 PME- 00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size 08 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-0000000000000000 Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ Address: 00000000fee01004 Data: 40b9 Capabilities: [58] HyperTransport: MSI Mapping Capabilities: [80] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x2, ASPM L0s, Port 3 Link: Latency L0s <512ns, L1 <4us Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x2 Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise- Slot: Number 8, PowerLimit 25.000000 Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- Slot: AttnInd Off, PwrInd On, Power- Root: Correctable- Non-Fatal- Fatal- PME- Capabilities: [100] Virtual Channel 00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size 08 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-0000000000000000 Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ Address: 00000000fee01004 Data: 40c1 Capabilities: [58] HyperTransport: MSI Mapping Capabilities: [80] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s, Port 2 Link: Latency L0s <512ns, L1 <4us Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x1 Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise- Slot: Number 4, PowerLimit 10.000000 Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- Slot: AttnInd Off, PwrInd On, Power- Root: Correctable- Non-Fatal- Fatal- PME- Capabilities: [100] Virtual Channel 00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size 08 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-0000000000000000 Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ Address: 00000000fee01004 Data: 40c9 Capabilities: [58] HyperTransport: MSI Mapping Capabilities: [80] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s, Port 1 Link: Latency L0s <512ns, L1 <4us Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x1 Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise- Slot: Number 2, PowerLimit 10.000000 Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- Slot: AttnInd Off, PwrInd On, Power- Root: Correctable- Non-Fatal- Fatal- PME- Capabilities: [100] Virtual Channel 00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size 08 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: c0000000-c7ffffff Prefetchable memory behind bridge: 00000000b0000000-00000000bff00000 Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B- Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ Address: 00000000fee01004 Data: 40d1 Capabilities: [58] HyperTransport: MSI Mapping Capabilities: [80] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x16, ASPM L0s, Port 0 Link: Latency L0s <512ns, L1 <4us Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x16 Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise- Slot: Number 1, PowerLimit 75.000000 Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- Slot: AttnInd Off, PwrInd On, Power- Root: Correctable- Non-Fatal- Fatal- PME- Capabilities: [100] Virtual Channel 01:00.0 VGA compatible controller: nVidia Corporation NV43 [GeForce 6600] (rev a2) (prog-if 00 [VGA]) Subsystem: eVga.com. Corp.: Unknown device c370 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size 08 Interrupt: pin A routed to IRQ 5 Region 0: Memory at c0000000 (32-bit, non-prefetchable) [size=64M] Region 1: Memory at b0000000 (64-bit, prefetchable) [size=256M] Region 3: Memory at c4000000 (64-bit, non-prefetchable) [size=16M] [virtual] Expansion ROM at c5000000 [disabled] [size=128K] Capabilities: [60] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [68] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- Address: 0000000000000000 Data: 0000 Capabilities: [78] Express Endpoint IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: AtnBtn- AtnInd- PwrInd- Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x16, ASPM L0s L1, Port 0 Link: Latency L0s <1us, L1 <4us Link: ASPM Disabled RCB 128 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x16 Capabilities: [100] Virtual Channel Capabilities: [128] Power Budgeting 05:06.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10) Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (500ns min, 6000ns max) Interrupt: pin A routed to IRQ 50 Region 0: I/O ports at a000 [size=256] Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 05:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02) Subsystem: Hauppauge computer works Inc. WinTV Series Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (4000ns min, 10000ns max) Interrupt: pin A routed to IRQ 58 Region 0: Memory at c8000000 (32-bit, prefetchable) [size=4K] 05:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02) Subsystem: Hauppauge computer works Inc. WinTV Series Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (1000ns min, 63750ns max) Interrupt: pin A routed to IRQ 58 Region 0: Memory at c8001000 (32-bit, prefetchable) [size=4K] Let me know if there is anything I can do or more information I can provide. Version-Release number of selected component (if applicable): kernel-2.6.14-1.1653_FC4 kernel-2.6.14-1.1656_FC4 (no oops yet) How reproducible: Every time. Steps to Reproduce: 1. Install 32bit mythtv packages from atrpms 2. Begin recording from bt878 device 3. watch things go boom Actual results: Machine lockup of the powercycling type. Expected results: Mindless entertainment recorded to disk. Additional info:
I went looking through the linux-kernel archive and found this similar looking oops. It's not identical, and his was tainted, but still... http://marc.theaimsgroup.com/?l=linux-kernel&m=113197483724072&w=2
I decided to give davej's kernel-2.6.15-1.1823_FC4 a whirl. It also crashed, but instead of an oops this BUG fragment made it to the logs: Jan 9 18:44:07 coolaid kernel: ----------- [cut here ] --------- [please bite here ] --------- Jan 9 18:44:07 coolaid kernel: Kernel BUG at include/linux/list.h:166 Jan 9 18:44:07 coolaid kernel: invalid operand: 0000 [1] SMP Jan 9 18:44:07 coolaid kernel: last sysfs file: /devices/system/cpu/cpu0/cpufreq/scaling_setspeed Jan 9 18:44:07 coolaid kernel: CPU 0 The list.h line referenced is in list_del: BUG_ON(entry->next->prev != entry); The scaling_setspeed looked interesting so I disabled cpuspeed and rebooted. The box has now been up for over 14 hours and recorded several hours of tv without any problem. Hope that helps.
can you attach (not paste) the output of dmesg -s 128000 please ?
Created attachment 123146 [details] dmesg output Sure thing.
This is a mass-update to all currently open kernel bugs. A new kernel update has been released (Version: 2.6.15-1.1830_FC4) based upon a new upstream kernel release. Please retest against this new kernel, as a large number of patches go into each upstream release, possibly including changes that may address this problem. This bug has been placed in NEEDINFO_REPORTER state. Due to the large volume of inactive bugs in bugzilla, if this bug is still in this state in two weeks time, it will be closed. Should this bug still be relevant after this period, the reporter can reopen the bug at any time. Any other users on the Cc: list of this bug can request that the bug be reopened by adding a comment to the bug. If this bug is a problem preventing you from installing the release this version is filed against, please see bug 169613. Thank you.
Closing per previous comment.