Return-path: Received: from mail-lb0-f169.google.com ([209.85.217.169]:37961 "EHLO mail-lb0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750924AbbANJxK (ORCPT ); Wed, 14 Jan 2015 04:53:10 -0500 MIME-Version: 1.0 In-Reply-To: <1421224818.2012.4.camel@gmail.com> References: <1421224274.2012.2.camel@gmail.com> <1421224818.2012.4.camel@gmail.com> Date: Wed, 14 Jan 2015 11:53:08 +0200 Message-ID: (sfid-20150114_105319_873950_427B4995) Subject: Re: [REGRESSION] iwlfiwi with Intel Centrino N1000 won't work with power_save From: Emmanuel Grumbach To: Igor Gnatenko Cc: linux-wireless , "Wysocki, Rafael" , Alex Nik , Linux PM list Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, Jan 14, 2015 at 10:40 AM, Igor Gnatenko wrote: > On Wed, 2015-01-14 at 11:31 +0300, Igor Gnatenko wrote: >> Hi, >> >> I got report from people that on Intel Centrino N1000 wifi won't >> work after >> updating to 3.17.8. I see in that release Fedora maints enabled >> POWERCAP and >> INTEL RAPL. We got working wifi only after disabling powersave via >> `iw dev wlp2s0 set power_save off`. What kernel version did you have before? BTW - for this device, power save is supposed to be disabled by default, but I need to check >> >> How we can debug this? >> >> lspci above. >> >> 02:00.0 Network controller [0280]: Intel Corporation Centrino >> Wireless- N 1000 [Condor Peak] [8086:0084] >> Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN >> [8086:1315] >> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- >> ParErr- Stepping- SERR- FastB2B- DisINTx+ >> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >> >TAbort- >> SERR- > Latency: 0, Cache Line Size: 64 bytes >> Interrupt: pin A routed to IRQ 28 >> Region 0: Memory at d1500000 (64-bit, non-prefetchable) >> [size=8K] >> Capabilities: [c8] Power Management version 3 >> Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA >> PME(D0+,D1- >> ,D2-,D3hot+,D3cold+) >> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 >> PME- >> Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ >> Address: 00000000fee0800c Data: 4122 >> Capabilities: [e0] Express (v1) Endpoint, MSI 00 >> DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency >> L0s >> <512ns, L1 unlimited >> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ >> DevCtl: Report errors: Correctable- Non-Fatal- Fatal- >> Unsupported- >> RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- >> MaxPayload 128 bytes, MaxReadReq 128 bytes >> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- >> AuxPwr+ TransPend- >> LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s >> L1, >> Exit Latency L0s <128ns, L1 <32us >> ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp- >> LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- >> CommClk+ >> ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- >> LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- >> SlotClk+ DLActive- BWMgmt- ABWMgmt- >> Capabilities: [100 v1] Advanced Error Reporting >> UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- >> UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- >> UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- >> UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- >> UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- >> UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- >> CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- >> NonFatalErr- >> CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- >> NonFatalErr+ >> AERCap: First Error Pointer: 00, GenCap- CGenEn- >> ChkCap- ChkEn- >> Capabilities: [140 v1] Device Serial Number 74-e5-0b-ff-ff- >> cc- >> 82-24 >> Kernel driver in use: iwlwifi >> Kernel modules: iwlwifi >> -- >> -Igor Gnatenko > CC linux-pm@ > -- > -Igor Gnatenko