[1.] One line summary of the problem: cpufreq ondemand governor problem [2.] Full description of the problem/report: I'm seeing a problem with the cpufreq ondemand governor in Ubuntu 12.04 32-bit. When I load one core of my Intel i5-3570 processor, instead of switching to a steady 3.8GHz clock as I would expect, the clock actually toggles between 1.6GHz (min frequency) and 3.8GHz (max frequency), even though the core is maxed out at 100%. I can increase the time it spends at 3.8GHz by increasing the sampling_down_factor tuning parameter, but it still switches back to 1.6GHz, albeit less frequently. I've also tried 12.10 32-bit and it has the same problem. However, 12.04 and 12.10 64-bit do not have the problem. I decided to look into this a little further, so I copied the source code for the ondemand governor module and added a little debug code to see what was going on. I found that the __cpufreq_driver_getavg function call was sometimes returning a value which was several orders of magnitude too small. For example: [20174.251637] mygov: freq_avg(2) = 158 freq_cur = 3801000 [20174.251642] mygov: freq_avg(0) = 4149919 freq_cur = 1600000 [20174.251645] mygov: freq_avg(1) = 4149919 freq_cur = 1600000 [20174.251647] mygov: freq_avg(3) = 4120224 freq_cur = 1600000 As you can see, the return value freq_avg is very small for core 2, which is the maxed out core. This value is calculated in mperf.c using 32-bit unsigned integers (in the 32-bit OS case) and it includes a final 10-bit right shift. As you can see, the normal return value is greater than 4meg, so before the shift it is greater then 4gig, right at the limit of a 32-bit integer. I believe that the erroneous return values are due to 32-bit overflow in the average frequency calculation. However, in the 64-bit OS the calculation uses 64 bits since one of the variables is declared as unsigned long, so there is no overflow. Note that slower processors wouldn't show this problem since the average frequency numbers would be smaller. Also, I have noticed that if I load 3 or 4 cores, the problem disappears. This is because the processor maximum clock frequency is automatically reduced to 3.7GHz or 3.6GHz respectively, and this frequency reduction is enough to avoid overflow. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136700 [3.] Keywords (i.e., modules, networking, kernel): Please note, Kernel.org uses a different keyword system then the Ubuntu Tags system. modules ondemand I'm sorry, I couldn't find any information about the Kernel.org keyword system. [4.] Kernel version (from /proc/version): Linux version 3.11.0-031100rc4-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201308041735 SMP Sun Aug 4 21:45:18 UTC 2013 [5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) not applicable [6.] A small shell script or example program which triggers the problem (if possible) anything that causes 100% CPU utilization, for example: perl -e 'for($i=0;$i<300000000;$i++){}' [7.] Environment Description: Ubuntu 12.04.2 LTS Release: 12.04 [7.1.] Software (add the output of the ver_linux script here) If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes. Linux elrond 3.11.0-031100rc4-generic #201308041735 SMP Sun Aug 4 21:45:18 UTC 2013 i686 i686 i386 GNU/Linux Gnu C 4.6 Gnu make 3.81 binutils 2.22 util-linux 2.20.1 mount support module-init-tools 3.16 e2fsprogs 1.42 reiserfsprogs 3.6.21 pcmciautils 018 PPP 2.4.5 Linux C Library 2.15 Dynamic linker (ldd) 2.15 Procps 3.2.8 Net-tools 1.60 Kbd 1.15.2 Sh-utils 8.13 wireless-tools 30 Modules Loaded netconsole configfs ipt_REJECT xt_tcpudp xt_LOG iptable_filter ip_tables x_tables dm_crypt parport_pc ppdev lp parport binfmt_misc snd_ens1371 gameport snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device hid_generic usblp snd psmouse coretemp soundcore usbhid snd_page_alloc hid serio_raw aesni_intel ablk_helper mac_hid cryptd lrw xts gf128mul mei_me lpc_ich mei aes_i586 cryptoloop i915 ahci libahci drm_kms_helper drm alx mdio i2c_algo_bit video [7.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz stepping : 9 microcode : 0x12 cpu MHz : 1600.000 cache size : 6144 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms bogomips : 6784.67 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz stepping : 9 microcode : 0x12 cpu MHz : 1600.000 cache size : 6144 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 4 apicid : 2 initial apicid : 2 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms bogomips : 6784.67 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz stepping : 9 microcode : 0x12 cpu MHz : 1600.000 cache size : 6144 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 4 apicid : 4 initial apicid : 4 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms bogomips : 6784.67 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz stepping : 9 microcode : 0x12 cpu MHz : 1600.000 cache size : 6144 KB physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 6 initial apicid : 6 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms bogomips : 6784.67 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: [7.3.] Module information (from /proc/modules): msr 12772 0 - Live 0x00000000 netconsole 14231 0 - Live 0x00000000 configfs 30380 2 netconsole, Live 0x00000000 ipt_REJECT 12512 2 - Live 0x00000000 xt_tcpudp 12788 77 - Live 0x00000000 xt_LOG 17544 39 - Live 0x00000000 iptable_filter 12706 1 - Live 0x00000000 ip_tables 18302 1 iptable_filter, Live 0x00000000 x_tables 22178 5 ipt_REJECT,xt_tcpudp,xt_LOG,iptable_filter,ip_tables, Live 0x00000000 dm_crypt 22524 0 - Live 0x00000000 parport_pc 32114 0 - Live 0x00000000 ppdev 17423 0 - Live 0x00000000 lp 13359 0 - Live 0x00000000 parport 40930 3 parport_pc,ppdev,lp, Live 0x00000000 binfmt_misc 17268 1 - Live 0x00000000 snd_ens1371 24847 2 - Live 0x00000000 gameport 15060 1 snd_ens1371, Live 0x00000000 snd_ac97_codec 110295 1 snd_ens1371, Live 0x00000000 ac97_bus 12642 1 snd_ac97_codec, Live 0x00000000 snd_pcm 94597 2 snd_ens1371,snd_ac97_codec, Live 0x00000000 snd_seq_midi 13132 0 - Live 0x00000000 snd_rawmidi 25157 2 snd_ens1371,snd_seq_midi, Live 0x00000000 snd_seq_midi_event 14475 1 snd_seq_midi, Live 0x00000000 snd_seq 55716 2 snd_seq_midi,snd_seq_midi_event, Live 0x00000000 snd_timer 28930 2 snd_pcm,snd_seq, Live 0x00000000 snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x00000000 hid_generic 12492 0 - Live 0x00000000 usblp 18377 0 - Live 0x00000000 snd 61270 12 snd_ens1371,snd_ac97_codec,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live 0x00000000 psmouse 92607 0 - Live 0x00000000 coretemp 13352 0 - Live 0x00000000 soundcore 12600 1 snd, Live 0x00000000 usbhid 47620 0 - Live 0x00000000 snd_page_alloc 18398 1 snd_pcm, Live 0x00000000 hid 83045 2 hid_generic,usbhid, Live 0x00000000 serio_raw 13189 0 - Live 0x00000000 aesni_intel 18196 0 - Live 0x00000000 ablk_helper 13357 1 aesni_intel, Live 0x00000000 mac_hid 13077 0 - Live 0x00000000 cryptd 19821 1 ablk_helper, Live 0x00000000 lrw 13127 1 aesni_intel, Live 0x00000000 xts 12778 1 aesni_intel, Live 0x00000000 gf128mul 14503 2 lrw,xts, Live 0x00000000 mei_me 18123 0 - Live 0x00000000 lpc_ich 16987 0 - Live 0x00000000 mei 67046 1 mei_me, Live 0x00000000 aes_i586 16995 1 aesni_intel, Live 0x00000000 cryptoloop 12570 0 - Live 0x00000000 i915 606963 2 - Live 0x00000000 ahci 25703 8 - Live 0x00000000 libahci 30834 1 ahci, Live 0x00000000 drm_kms_helper 47306 1 i915, Live 0x00000000 drm 247743 3 i915,drm_kms_helper, Live 0x00000000 alx 31972 0 - Live 0x00000000 mdio 13559 1 alx, Live 0x00000000 i2c_algo_bit 13316 1 i915, Live 0x00000000 video 19046 1 i915, Live 0x00000000 [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) 0000-0cf7 : PCI Bus 0000:00 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0064-0064 : keyboard 0070-0077 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0200-020f : pnp 00:04 03f8-03ff : serial 0400-0403 : ACPI PM1a_EVT_BLK 0404-0405 : ACPI PM1a_CNT_BLK 0408-040b : ACPI PM_TMR 0410-0415 : ACPI CPU throttle 0420-042f : ACPI GPE0_BLK 0430-0433 : iTCO_wdt 0450-0450 : ACPI PM2_CNT_BLK 0454-0457 : pnp 00:06 0458-047f : pnp 00:04 0460-047f : iTCO_wdt 04d0-04d1 : pnp 00:08 0500-057f : pnp 00:04 0680-069f : pnp 00:04 0a00-0a0f : pnp 00:07 0a20-0a2f : pnp 00:07 0a30-0a3f : pnp 00:07 0cf8-0cff : PCI conf1 0d00-ffff : PCI Bus 0000:00 d000-dfff : PCI Bus 0000:03 d000-dfff : PCI Bus 0000:04 d000-d03f : 0000:04:00.0 d000-d03f : Ensoniq AudioPCI e000-efff : PCI Bus 0000:02 e000-e07f : 0000:02:00.0 f000-f03f : 0000:00:02.0 f040-f05f : 0000:00:1f.3 f060-f07f : 0000:00:1f.2 f060-f07f : ahci f080-f083 : 0000:00:1f.2 f080-f083 : ahci f090-f097 : 0000:00:1f.2 f090-f097 : ahci f0a0-f0a3 : 0000:00:1f.2 f0a0-f0a3 : ahci f0b0-f0b7 : 0000:00:1f.2 f0b0-f0b7 : ahci ffff-ffff : pnp 00:04 ffff-ffff : pnp 00:04 00000000-00000fff : reserved 00001000-0009d7ff : System RAM 0009d800-0009ffff : reserved 000a0000-000bffff : PCI Bus 0000:00 000a0000-000bffff : Video RAM area 000c0000-000ce5ff : Video ROM 000d0000-000d3fff : PCI Bus 0000:00 000d4000-000d7fff : PCI Bus 0000:00 000d8000-000dbfff : PCI Bus 0000:00 000dc000-000dffff : PCI Bus 0000:00 000e0000-000fffff : reserved 000e0000-000e3fff : PCI Bus 0000:00 000e4000-000e7fff : PCI Bus 0000:00 000f0000-000fffff : System ROM 00100000-1fffffff : System RAM 01000000-01668062 : Kernel code 01668063-019bd17f : Kernel data 01aa1000-01b94fff : Kernel bss 20000000-201fffff : reserved 20000000-201fffff : pnp 00:0b 20200000-40003fff : System RAM 40004000-40004fff : reserved 40004000-40004fff : pnp 00:0b 40005000-d958dfff : System RAM d958e000-d9a3dfff : reserved d9a3e000-d9a3efff : ACPI Tables d9a3f000-d9b61fff : ACPI Non-volatile Storage d9b62000-da308fff : reserved da309000-da309fff : System RAM da30a000-da34cfff : ACPI Non-volatile Storage da34d000-dac94fff : System RAM dac95000-dafdcfff : reserved dafdd000-daffffff : System RAM db000000-db7fffff : RAM buffer db800000-df9fffff : reserved dfa00000-feafffff : PCI Bus 0000:00 dfa00000-dfa00fff : pnp 00:0a e0000000-efffffff : 0000:00:02.0 f7800000-f7bfffff : 0000:00:02.0 f7c00000-f7cfffff : PCI Bus 0000:02 f7c00000-f7c3ffff : 0000:02:00.0 f7c00000-f7c3ffff : alx f7d00000-f7d0ffff : 0000:00:14.0 f7d00000-f7d0ffff : xhci_hcd f7d11000-f7d110ff : 0000:00:1f.3 f7d12000-f7d127ff : 0000:00:1f.2 f7d12000-f7d127ff : ahci f7d13000-f7d133ff : 0000:00:1d.0 f7d13000-f7d133ff : ehci_hcd f7d14000-f7d143ff : 0000:00:1a.0 f7d14000-f7d143ff : ehci_hcd f7d16000-f7d1600f : 0000:00:16.0 f7d16000-f7d1600f : mei_me f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f] f8000000-fbffffff : reserved f8000000-fbffffff : pnp 00:0a fec00000-fec00fff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed03fff : reserved fed00000-fed003ff : HPET 0 fed10000-fed17fff : pnp 00:0a fed18000-fed18fff : pnp 00:0a fed19000-fed19fff : pnp 00:0a fed1c000-fed1ffff : reserved fed1c000-fed1ffff : pnp 00:0a fed1f410-fed1f414 : iTCO_wdt fed20000-fed3ffff : pnp 00:0a fed40000-fed44fff : pnp 00:00 fed45000-fed8ffff : pnp 00:0a fed90000-fed93fff : pnp 00:0a fed90000-fed90fff : dmar0 fed91000-fed91fff : dmar1 fee00000-fee00fff : Local APIC fee00000-fee00fff : reserved ff000000-ffffffff : reserved ff000000-ffffffff : pnp 00:0a 100000000-21f5fffff : System RAM 21f600000-21fffffff : RAM buffer [7.5.] PCI information ('lspci -vvv' as root) 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09) Subsystem: Giga-byte Technology Device 5000 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: [e0] Vendor Specific Information: Len=0c <?> 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Giga-byte Technology Device d000 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 Interrupt: pin A routed to IRQ 42 Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at f000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0200c Data: 41a1 Capabilities: [d0] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [a4] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: i915 Kernel modules: i915 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI]) Subsystem: Giga-byte Technology Device 5007 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 40 Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Address: 00000000fee0f00c Data: 4171 Kernel driver in use: xhci_hcd 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) Subsystem: Giga-byte Technology Device 1c3a 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 Interrupt: pin A routed to IRQ 43 Region 0: Memory at f7d16000 (64-bit, non-prefetchable) [size=16] Capabilities: [50] 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: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0f00c Data: 41b1 Kernel driver in use: mei_me Kernel modules: mei-me 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI]) Subsystem: Giga-byte Technology Device 5006 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 0: Memory at f7d14000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: ehci-pci 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode]) 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 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #1, Speed 5GT/s, Width x4, ASPM unknown, Latency L0 <1us, L1 <16us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train+ SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #0, PowerLimit 25.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range BC, TimeoutDis+ ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd- LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Giga-byte Technology Device 5001 Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.4 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 5 (rev c4) (prog-if 00 [Normal decode]) 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 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000e000-0000efff Memory behind bridge: f7c00000-f7cfffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #5, Speed 5GT/s, Width x1, ASPM unknown, Latency L0 <512ns, L1 <16us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #4, PowerLimit 10.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range BC, TimeoutDis+ ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Giga-byte Technology Device 5001 Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.6 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4) (prog-if 01 [Subtractive decode]) 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 Bus: primary=00, secondary=03, subordinate=04, sec-latency=0 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #7, Speed 5GT/s, Width x1, ASPM unknown, Latency L0 <1us, L1 <16us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #6, PowerLimit 10.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range BC, TimeoutDis+ ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Giga-byte Technology Device 5001 Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI]) Subsystem: Giga-byte Technology Device 5006 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 23 Region 0: Memory at f7d13000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: ehci-pci 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) Subsystem: Giga-byte Technology Device 5001 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: lpc_ich Kernel modules: lpc_ich 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0]) Subsystem: Giga-byte Technology Device b005 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 41 Region 0: I/O ports at f0b0 [size=8] Region 1: I/O ports at f0a0 [size=4] Region 2: I/O ports at f090 [size=8] Region 3: I/O ports at f080 [size=4] Region 4: I/O ports at f060 [size=32] Region 5: Memory at f7d12000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0100c Data: 4191 Capabilities: [70] 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: [a8] SATA HBA v1.0 BAR4 Offset=00000004 Capabilities: [b0] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: ahci Kernel modules: ahci 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) Subsystem: Giga-byte Technology Device 5001 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 5 Region 0: Memory at f7d11000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at f040 [size=32] Kernel modules: i2c-i801 02:00.0 Ethernet controller: Atheros Communications Inc. AR8161 Gigabit Ethernet (rev 10) Subsystem: Giga-byte Technology Device e000 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 44 Region 0: Memory at f7c00000 (64-bit, non-prefetchable) [size=256K] Region 2: I/O ports at e000 [size=128] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset- DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 unlimited, L1 unlimited ClockPM+ Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [c0] MSI: Enable+ Count=1/16 Maskable+ 64bit+ Address: 00000000fee0100c Data: 41c1 Masking: 0000fffe Pending: 00000000 Capabilities: [d8] MSI-X: Enable- Count=16 Masked- Vector table: BAR=0 offset=00002000 PBA: BAR=0 offset=00003000 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: [180 v1] Device Serial Number ff-9e-7b-b3-90-2b-34-ff Kernel driver in use: alx Kernel modules: alx 03:00.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 41) (prog-if 01 [Subtractive decode]) 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 Bus: primary=03, secondary=04, subordinate=04, sec-latency=32 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr+ DiscTmrStat- DiscTmrSERREn- Capabilities: [90] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=55mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [a0] Subsystem: Giga-byte Technology Device 8892 04:00.0 Multimedia audio controller: Ensoniq 5880B [AudioPCI] (rev 02) Subsystem: Ensoniq Creative Sound Blaster AudioPCI128 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort+ >SERR- <PERR- INTx- Latency: 32 (3000ns min, 32000ns max) Interrupt: pin A routed to IRQ 18 Region 0: I/O ports at d000 [size=64] Capabilities: [dc] Power Management version 1 Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: snd_ens1371 Kernel modules: snd-ens1371 [7.6.] SCSI information (from /proc/scsi/scsi) Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: INTEL SSDSC2CT24 Rev: 335t Type: Direct-Access ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD3200AAKS-0 Rev: 12.0 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD1600AAJS-0 Rev: 58.0 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi4 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: BD-RE WH12LS38 Rev: 1.00 Type: CD-ROM ANSI SCSI revision: 05 [7.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): 1/ 1367/ 2277/ 2515/ 2775/ 40/ cgroups misc 10/ 1399/ 2278/ 2533/ 2777/ 41/ cmdline modules 1005/ 1400/ 2279/ 2541/ 2781/ 42/ consoles mounts@ 1037/ 1401/ 2281/ 2542/ 2783/ 43/ cpuinfo mtrr 1038/ 1403/ 2285/ 2547/ 2787/ 44/ crypto net@ 1039/ 1427/ 2287/ 2550/ 2789/ 45/ devices pagetypeinfo 1049/ 1457/ 2290/ 2552/ 2799/ 465/ diskstats partitions 1058/ 1473/ 23/ 2563/ 28/ 469/ dma sched_debug 1062/ 15/ 2343/ 2566/ 2867/ 5/ dri/ schedstat 1065/ 16/ 2345/ 2586/ 2869/ 56/ driver/ scsi/ 1069/ 1654/ 24/ 2588/ 29/ 607/ execdomains self@ 11/ 1679/ 2429/ 26/ 2946/ 61/ fb slabinfo 1104/ 17/ 2433/ 2603/ 3/ 62/ filesystems softirqs 1107/ 1701/ 2438/ 2604/ 30/ 643/ fs/ stat 1121/ 1741/ 2444/ 2608/ 3009/ 645/ interrupts swaps 1122/ 1747/ 2449/ 266/ 3011/ 673/ iomem sys/ 1141/ 18/ 2477/ 267/ 3015/ 7/ ioports sysrq-trigger 1145/ 2/ 2484/ 268/ 31/ 8/ irq/ sysvipc/ 1148/ 20/ 2489/ 269/ 32/ 81/ kallsyms timer_list 12/ 2054/ 2490/ 27/ 33/ 812/ kcore timer_stats 1216/ 2087/ 2494/ 270/ 34/ 82/ key-users tty/ 1246/ 21/ 2496/ 271/ 35/ 9/ kmsg uptime 1251/ 2160/ 25/ 274/ 351/ 912/ kpagecount version 13/ 22/ 2501/ 275/ 352/ 937/ kpageflags vmallocinfo 1344/ 2213/ 2503/ 2753/ 353/ 949/ latency_stats vmstat 1350/ 2216/ 2505/ 2760/ 36/ acpi/ loadavg zoneinfo 1358/ 2217/ 2507/ 2762/ 37/ asound/ locks 1361/ 2245/ 2509/ 2769/ 39/ buddyinfo mdstat 1363/ 2246/ 2510/ 2771/ 4/ bus/ meminfo [X.] Other notes, patches, fixes, workarounds: I've tried 32-bit kernel versions 2.6, 3.2, 3.5, 3.8 and 3.11 and they all have this problem. I booted the 3.11 kernel with intel_pstate=disable to test the ondemand governor. I didn't see the problem in 3.11 with intel_pstate enabled, with either the powersave or the performance governor. I've been using a workaround, which is to detect and correct for the overflow in a modified version of the ondemand governor. This is just a band-aid, not a real fix, as it doesn't actually prevent the overflow, but this way I only have to compile one small module. Regards, Jim Hochschild -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
