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`.

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- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
        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