re: http://bugzilla.kernel.org/show_bug.cgi?id=9489 This just happened here again. Or at least I finally noticed that the fan on my notebook seemed to be running hard for much longer than usual. :) Powertop showed 2.6.24-final running with 10000-36000 wakeups/sec, with *nothing* significant running: top showed 97+% idle on both cores. /proc/interrupts didn't have anything interesting either. I've put a snap of the powertop output into Bug 9489 (link above), along with the kernel .config again. This was after an uptime of many days, with lots of suspend/resume (RAM) cycles and even a few hibernate/resume cycles. lspci -vv doesn't show much different from a fresh reboot versus what was seem "during" the problem: --- lspci.rebooted 2008-02-04 12:18:53.000000000 -0500 +++ lspci.during 2008-02-04 12:16:04.000000000 -0500 @@ -44,7 +44,7 @@ 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: 64 bytes - Interrupt: pin A routed to IRQ 21 + Interrupt: pin A routed to IRQ 20 Region 0: Memory at efffc000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+) @@ -174,7 +174,7 @@ 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: 0 - Interrupt: pin B routed to IRQ 21 + Interrupt: pin B routed to IRQ 20 Region 4: I/O ports at bf60 [size=32] 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01) (prog-if 00 [UHCI]) @@ -182,7 +182,7 @@ 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: 0 - Interrupt: pin C routed to IRQ 22 + Interrupt: pin C routed to IRQ 21 Region 4: I/O ports at bf40 [size=32] 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01) (prog-if 00 [UHCI]) @@ -190,7 +190,7 @@ 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: 0 - Interrupt: pin D routed to IRQ 23 + Interrupt: pin D routed to IRQ 22 Region 4: I/O ports at bf20 [size=32] 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI]) @@ -296,7 +296,7 @@ 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 - Interrupt: pin B routed to IRQ 20 + Interrupt: pin B routed to IRQ 23 Region 0: Memory at ef9fd400 (32-bit, non-prefetchable) [size=256] Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Interestingly, lspci *does* show larger differences from "fresh reboot" to "fresh resume from hibernate" after said reboot. I don't think this should happen: --- lspci.rebooted 2008-02-04 12:18:53.000000000 -0500 +++ lspci.afterhib2 2008-02-04 12:22:29.000000000 -0500 @@ -13,7 +13,7 @@ I/O behind bridge: 0000e000-0000efff Memory behind bridge: efd00000-efefffff Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff - Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- + Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B- Capabilities: [88] Subsystem: Dell Unknown device 01cd Capabilities: [80] Power Management version 2 @@ -24,7 +24,7 @@ Capabilities: [a0] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <64ns, L1 <1us - Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- + Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- Device: MaxPayload 128 bytes, MaxReadReq 128 bytes Link: Supported Speed 2.5Gb/s, Width x16, ASPM L0s L1, Port 2 @@ -69,12 +69,12 @@ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=0 - Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- + Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- Capabilities: [40] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s unlimited, L1 unlimited - Device: Errors: Correctable- Non-Fatal- Fatal+ Unsupported- + Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- Device: MaxPayload 128 bytes, MaxReadReq 128 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 1 @@ -101,12 +101,12 @@ Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=0c, subordinate=0c, sec-latency=0 Memory behind bridge: efc00000-efcfffff - Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- + Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- Capabilities: [40] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s unlimited, L1 unlimited - Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- + Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- Device: MaxPayload 128 bytes, MaxReadReq 128 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 2 @@ -140,7 +140,7 @@ Capabilities: [40] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s unlimited, L1 unlimited - Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- + Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- Device: MaxPayload 128 bytes, MaxReadReq 128 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 4 Rafael ? - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html