Le quartidi 4 brumaire, an CCXV, Patrick Boettcher a écrit : > > [ 1880.948479] APIC error on CPU0: 40(40) > > [ 1891.087908] hub 1-0:1.0: port 6 disabled by hub (EMI?), re-enabling... > Here the problem starts. The USB-Port is dying. It seems so. Yet, it is something caused by the DVB device or driver, since it occurs specifically when I try to change something. I just tried to just watch TV, and it worked without oopsing; in particular, it survived several of these annoying but seemingly harmless "APIC error"s that I have since the beginning. It oopsed when I tried to change the channel (on the fourth time). On the other hand, I just tried to insert an USB hub in the chain, and now mplayer complains that: dvb_streaming_read, attempt N. 6 failed with errno 0 when reading 1948 bytes and tzap shows a status of 1b instead of 1f. The status stays 1b even if I unplug the stick and re-plug it directly on the computer. It all seems quite mysterious. > > [ 1891.087915] usb 1-6: USB disconnect, address 2 > And the device disconnects. I assume while you are watching TV. That's why > the following Oops. The dvb-core is not hotpluggable so it cannot handle > suddenly disappearing devices. > > > [ 1896.963791] Unable to handle kernel NULL pointer dereference at 0000000000000021 RIP: > What is your USB controller? It seems to be an ATI SB400. Thanks for your efforts. -- Nicolas George 00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (prog-if 10 [OHCI]) Subsystem: Acer Incorporated [ALI] Unknown device 007e 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: 64, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 233 Region 0: Memory at c0000000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> 00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (prog-if 10 [OHCI]) Subsystem: Acer Incorporated [ALI] Unknown device 007e 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: 64, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 233 Region 0: Memory at c0001000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> 00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller (prog-if 20 [EHCI]) Subsystem: Acer Incorporated [ALI] Unknown device 007e 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: 64, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 233 Region 0: Memory at c0002000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied>
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