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Date: Sun, 14 Jun 2009 19:01:46 +0200 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Thomas Meyer <thomas@...3r.de> Cc: linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org, Alan Stern <stern@...land.harvard.edu> Subject: Re: 2.6.30: suspend-to-ram, second s2r wakes up immediately On Sunday 14 June 2009, Thomas Meyer wrote: > Am Sonntag, den 14.06.2009, 18:28 +0200 schrieb Rafael J. Wysocki: > > On Sunday 14 June 2009, Thomas Meyer wrote: > > > Hello. > > > > > > After a cold start of the computer, the first suspend-to-ram works as it > > > should and everything is fine. > > > > > > But after waking up again, the second suspend-to-ram (in a row) seems to > > > work, but the computer wakes up immediately (i.e. it doesn't stay in > > > S3)! > > > > > > Now the strange part: after re-plugging my 4-port usb hub, the computer > > > (in a third suspend-to-ram try) enters S3 without waking up immediately > > > again. > > > > > > Strange, hmm? > > > > So, it looks like there's a device that generates a wake-up request after the > > second suspend automatically. > > > > Can you send the output of lspci from the box? > > > > sure: > > 00:00.0 RAM memory: nVidia Corporation MCP55 Memory Controller (rev a1) > Subsystem: Micro-Star International Co., Ltd. Device 7250 > 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: [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: [dc] HyperTransport: MSI Mapping Enable+ Fixed- > Mapping Address Base: 00000000fee00000 > > 00:01.0 ISA bridge: nVidia Corporation MCP55 LPC Bridge (rev a2) > Subsystem: Micro-Star International Co., Ltd. Device 7250 > 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 > Region 0: I/O ports at 2f00 [size=128] > > 00:01.1 SMBus: nVidia Corporation MCP55 SMBus (rev a2) > Subsystem: Micro-Star International Co., Ltd. Device 7250 > 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 11 > Region 0: I/O ports at 2900 [size=64] > Region 4: I/O ports at 2d00 [size=64] > Region 5: I/O ports at 2e00 [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- > Kernel driver in use: nForce2_smbus > > 00:02.0 USB Controller: nVidia Corporation MCP55 USB Controller (rev a1) (prog-if 10 [OHCI]) > Subsystem: Micro-Star International Co., Ltd. Device 7250 > 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 fe9fb000 (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- > Kernel driver in use: ohci_hcd > > 00:02.1 USB Controller: nVidia Corporation MCP55 USB Controller (rev a2) (prog-if 20 [EHCI]) > Subsystem: Micro-Star International Co., Ltd. Device 7250 > 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 23 > Region 0: Memory at fe9fac00 (32-bit, non-prefetchable) [size=256] > Capabilities: [44] Debug port: BAR=1 offset=0098 > 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+ > Kernel driver in use: ehci_hcd PME+ means that the USB EHCI controller will signal a PME as soon as it is enabled, so if PME is enabled on the controller before suspend, it will wake up the system. Please send a boot log. Best, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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