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Date: Wed, 13 Jan 2010 09:22:40 +0000 (GMT)
From: richard parkins <p1rpp@...oo.co.uk>
To: linux-kernel@...r.kernel.org
Cc: Darren Hart <dvhltc@...ibm.com>
Subject: Problems with futex
Please CC rparkins@...o-software.com with any responses
1. Various problems with futex
2. Test attached shows errors:
FUTEX_WAKE_OP arg4 not decoded correctly in 32-bit (looks like fixed in linux-2.6.32.3)
FUTEX_LOCK_PI(_PRIVATE) with non-NULL timeout returns ETIMEDOUT immediately without waiting (may be fixed in linux-2.6.32.3)
FUTEX_WAIT_BITSET(_PRIVATE) with non-NULL timeout returns ETIMEDOUT immediately without waiting (patch suggested below)
Definitions of FUTEX_WAIT_BITSET_PRIVATE and FUTEX_WAKE_BITSET_PRIVATE were bad in header file (fixed in linux-2.6.32.3)
Definition of FUTEX_OP unsafe if actual arguments are expressions (safe one suggested below)
3. futex
4. Linux version 2.6.27.39-0.2-default (geeko@...ldhost) (gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux) ) #1 SMP 2009-11-23 12:57:38 +0100
5. not applicable
6. test attached
7.1
Linux rparkins64 2.6.27.39-0.2-default #1 SMP 2009-11-23 12:57:38 +0100 x86_64 x86_64 x86_64 GNU/Linux
Gnu C 4.3
Gnu make 3.81
binutils 11.1
2.19
util-linux ver_linux: line 23: fdformat: command not found
mount support
module-init-tools found
Linux C Library 2.9
Dynamic linker (ldd) 2.9
Procps 3.2.7
Kbd 1.14.1
oprofile 0.9.4
Sh-utils 6.12
udev 128
Modules Loaded ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit af_packet snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack ip_tables ip6table_filter ip6_tables x_tables ipv6 cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq dm_crypt fuse loop dm_mod arc4 ecb snd_hda_intel crypto_blkcipher iwl3945 snd_pcm usbhid pcmcia video snd_timer rfkill iTCO_wdt hid mac80211 iTCO_vendor_support snd_page_alloc tg3 yenta_socket nvidia snd_hwdep ohci1394 i2c_i801 battery snd output rtc_cmos libphy led_class button ac rsrc_nonstatic pcspkr joydev ff_memless ieee1394 intel_agp wmi sr_mod irda rtc_core pcmcia_core dcdbas cdrom soundcore rtc_lib i2c_core cfg80211 crc_ccitt sg sd_mod crc_t10dif ehci_hcd uhci_hcd usbcore edd ext3 mbcache jbd fan ide_pci_generic ide_core ata_generic
ata_piix libata scsi_mod dock thermal processor thermal_sys hwmon
7.2
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
stepping : 6
cpu MHz : 1000.000
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
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 syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 3989.97
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 : 15
model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
stepping : 6
cpu MHz : 1000.000
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 10
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 syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 3990.05
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
7.3
ip6t_LOG 7180 7 - Live 0xffffffffa0dbe000
xt_tcpudp 3608 4 - Live 0xffffffffa0dbc000
xt_pkttype 2152 3 - Live 0xffffffffa0dba000
ipt_LOG 6812 8 - Live 0xffffffffa0db7000
xt_limit 3180 15 - Live 0xffffffffa0db5000
af_packet 20232 4 - Live 0xffffffffa0daf000
snd_pcm_oss 48624 0 - Live 0xffffffffa0da2000
snd_mixer_oss 16808 1 snd_pcm_oss, Live 0xffffffffa0d9c000
snd_seq 61504 0 - Live 0xffffffffa0d8b000
snd_seq_device 8604 1 snd_seq, Live 0xffffffffa0d87000
ip6t_REJECT 6024 3 - Live 0xffffffffa0d84000
nf_conntrack_ipv6 24712 5 - Live 0xffffffffa0d7c000
ip6table_raw 2456 1 - Live 0xffffffffa0d7a000
xt_NOTRACK 2152 4 - Live 0xffffffffa0d78000
ipt_REJECT 3480 3 - Live 0xffffffffa0d76000
xt_state 2568 10 - Live 0xffffffffa0d74000
iptable_raw 2760 1 - Live 0xffffffffa0d72000
iptable_filter 3400 1 - Live 0xffffffffa0d70000
ip6table_mangle 3128 0 - Live 0xffffffffa0d6e000
nf_conntrack_netbios_ns 2840 0 - Live 0xffffffffa0219000
nf_conntrack_ipv4 12808 5 - Live 0xffffffffa0d69000
nf_conntrack 80352 5 nf_conntrack_ipv6,xt_NOTRACK,xt_state,nf_conntrack_netbios_ns,nf_conntrack_ipv4, Live 0xffffffffa0d54000
ip_tables 19464 2 iptable_raw,iptable_filter, Live 0xffffffffa0d4e000
ip6table_filter 3240 1 - Live 0xffffffffa01d3000
ip6_tables 21048 4 ip6t_LOG,ip6table_raw,ip6table_mangle,ip6table_filter, Live 0xffffffffa0d47000
x_tables 23376 11 ip6t_LOG,xt_tcpudp,xt_pkttype,ipt_LOG,xt_limit,ip6t_REJECT,xt_NOTRACK,ipt_REJECT,xt_state,ip_tables,ip6_tables, Live 0xffffffffa0d40000
ipv6 292472 23 ip6t_REJECT,nf_conntrack_ipv6,ip6table_mangle, Live 0xffffffffa0cf7000
cpufreq_conservative 8384 0 - Live 0xffffffffa0cf3000
cpufreq_userspace 4204 0 - Live 0xffffffffa0cf0000
cpufreq_powersave 2248 0 - Live 0xffffffffa015f000
acpi_cpufreq 8216 0 - Live 0xffffffffa0cec000
dm_crypt 14352 0 - Live 0xffffffffa0ce7000
fuse 57872 3 - Live 0xffffffffa0cd7000
loop 16660 0 - Live 0xffffffffa0cd1000
dm_mod 74064 1 dm_crypt, Live 0xffffffffa0cbd000
arc4 2216 2 - Live 0xffffffffa01ec000
ecb 3464 2 - Live 0xffffffffa01df000
snd_hda_intel 562228 2 - Live 0xffffffffa0c32000
crypto_blkcipher 19372 2 dm_crypt,ecb, Live 0xffffffffa0c2c000
iwl3945 97892 0 - Live 0xffffffffa0c13000
snd_pcm 92064 2 snd_pcm_oss,snd_hda_intel, Live 0xffffffffa0bfb000
usbhid 52544 0 - Live 0xffffffffa0bed000
pcmcia 38288 0 - Live 0xffffffffa0be2000
video 24316 6 - Live 0xffffffffa0bdb000
snd_timer 24968 2 snd_seq,snd_pcm, Live 0xffffffffa0bd3000
rfkill 10948 2 iwl3945, Live 0xffffffffa0bcf000
iTCO_wdt 12416 0 - Live 0xffffffffa0bca000
hid 41136 1 usbhid, Live 0xffffffffa0bbe000
mac80211 241360 1 iwl3945, Live 0xffffffffa0b82000
iTCO_vendor_support 4268 1 iTCO_wdt, Live 0xffffffffa0216000
snd_page_alloc 9800 2 snd_hda_intel,snd_pcm, Live 0xffffffffa0212000
tg3 125084 0 - Live 0xffffffffa0b62000
yenta_socket 26404 1 - Live 0xffffffffa0b5a000
nvidia 9616824 32 - Live 0xffffffffa022d000 (PX)
snd_hwdep 9104 1 snd_hda_intel, Live 0xffffffffa0229000
ohci1394 31364 0 - Live 0xffffffffa0220000
i2c_i801 12756 0 - Live 0xffffffffa021b000
battery 13856 0 - Live 0xffffffffa01b4000
snd 73576 12 snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_hda_intel,snd_pcm,snd_timer,snd_hwdep, Live 0xffffffffa01ff000
output 3672 1 video, Live 0xffffffffa01fd000
rtc_cmos 13000 0 - Live 0xffffffffa01f8000
libphy 23080 1 tg3, Live 0xffffffffa01f1000
led_class 5008 1 iwl3945, Live 0xffffffffa01ee000
button 8328 0 - Live 0xffffffffa01e8000
ac 5776 0 - Live 0xffffffffa01e5000
rsrc_nonstatic 10920 1 yenta_socket, Live 0xffffffffa01e1000
pcspkr 3064 0 - Live 0xffffffffa01dd000
joydev 11376 0 - Live 0xffffffffa01d9000
ff_memless 8752 1 usbhid, Live 0xffffffffa01d5000
ieee1394 98464 1 ohci1394, Live 0xffffffffa01b9000
intel_agp 30400 0 - Live 0xffffffffa01ab000
wmi 8160 0 - Live 0xffffffffa01a8000
sr_mod 15860 0 - Live 0xffffffffa01a3000
irda 132756 0 - Live 0xffffffffa0181000
rtc_core 21396 1 rtc_cmos, Live 0xffffffffa017a000
pcmcia_core 39140 3 pcmcia,yenta_socket,rsrc_nonstatic, Live 0xffffffffa016f000
dcdbas 10984 0 - Live 0xffffffffa016b000 (X)
cdrom 36200 1 sr_mod, Live 0xffffffffa0161000
soundcore 8368 1 snd, Live 0xffffffffa015b000
rtc_lib 3560 1 rtc_core, Live 0xffffffffa0131000
i2c_core 35296 2 nvidia,i2c_i801, Live 0xffffffffa0151000
cfg80211 28168 2 iwl3945,mac80211, Live 0xffffffffa0149000
crc_ccitt 2392 1 irda, Live 0xffffffffa0120000
sg 35376 0 - Live 0xffffffffa013f000
sd_mod 35240 6 - Live 0xffffffffa0135000
crc_t10dif 2152 1 sd_mod, Live 0xffffffffa0133000
ehci_hcd 54676 0 - Live 0xffffffffa0122000
uhci_hcd 26840 0 - Live 0xffffffffa0118000
usbcore 195808 4 usbhid,ehci_hcd,uhci_hcd, Live 0xffffffffa00e7000
edd 10272 0 - Live 0xffffffffa00e3000
ext3 140824 3 - Live 0xffffffffa00bf000
mbcache 9484 1 ext3, Live 0xffffffffa00bb000
jbd 61752 1 ext3, Live 0xffffffffa00aa000
fan 6016 0 - Live 0xffffffffa00a7000
ide_pci_generic 4652 0 - Live 0xffffffffa00a4000
ide_core 115068 1 ide_pci_generic, Live 0xffffffffa0086000
ata_generic 6044 0 - Live 0xffffffffa0083000
ata_piix 21980 5 - Live 0xffffffffa007c000
libata 183856 2 ata_generic,ata_piix, Live 0xffffffffa004e000
scsi_mod 178968 4 sr_mod,sg,sd_mod,libata, Live 0xffffffffa0021000
dock 14212 1 libata, Live 0xffffffffa001c000
thermal 24408 0 - Live 0xffffffffa0015000
processor 49472 4 acpi_cpufreq,thermal, Live 0xffffffffa0007000
thermal_sys 14336 4 video,fan,thermal,processor, Live 0xffffffffa0002000
hwmon 3720 1 thermal_sys, Live 0xffffffffa0000000
7.4
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0064-0064 : keyboard
0070-0071 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : 0000:00:1f.2
0170-0177 : ata_piix
01f0-01f7 : 0000:00:1f.2
01f0-01f7 : ata_piix
02f8-02ff : serial
0376-0376 : 0000:00:1f.2
0376-0376 : ata_piix
03c0-03df : vga+
03f6-03f6 : 0000:00:1f.2
03f6-03f6 : ata_piix
03f8-03ff : serial
04d0-04d1 : pnp 00:02
0809-0809 : pnp 00:03
0910-091f : pnp 00:08
0920-092f : pnp 00:08
0930-097f : pnp 00:08
0c80-0caf : pnp 00:08
0cb0-0cbb : pnp 00:0e
0cbc-0cbf : pnp 00:08
0cf8-0cff : PCI conf1
1000-107f : 0000:00:1f.0
1000-1003 : ACPI PM1a_EVT_BLK
1004-1005 : ACPI PM1a_CNT_BLK
1008-100b : ACPI PM_TMR
1010-1015 : ACPI CPU throttle
1020-1020 : ACPI PM2_CNT_BLK
1028-102f : ACPI GPE0_BLK
1060-107f : iTCO_wdt
1080-10bf : 0000:00:1f.0
1080-10bf : pnp 00:03
10c0-10df : 0000:00:1f.3
10c0-10df : pnp 00:03
10c0-10df : i801_smbus
2000-2fff : PCI Bus 0000:03
2000-20ff : PCI CardBus 0000:04
2400-24ff : PCI CardBus 0000:04
bf20-bf3f : 0000:00:1d.3
bf20-bf3f : uhci_hcd
bf40-bf5f : 0000:00:1d.2
bf40-bf5f : uhci_hcd
bf60-bf7f : 0000:00:1d.1
bf60-bf7f : uhci_hcd
bf80-bf9f : 0000:00:1d.0
bf80-bf9f : uhci_hcd
bfa0-bfaf : 0000:00:1f.2
bfa0-bfaf : ata_piix
e000-efff : PCI Bus 0000:0d
f400-f4fe : pnp 00:03
00000000-0009efff : System RAM
0009f000-0009ffff : reserved
000c0000-000cffff : pnp 00:00
000e0000-000fffff : pnp 00:00
00100000-7fe813ff : System RAM
00200000-004a420f : Kernel code
004a4210-007bd18f : Kernel data
00a36000-00bcc8b7 : Kernel bss
7fe81400-7fffffff : reserved
88000000-8bffffff : PCI Bus 0000:03
88000000-8bffffff : PCI CardBus 0000:04
8c000000-8fffffff : PCI CardBus 0000:04
d0000000-dfffffff : PCI Bus 0000:01
d0000000-dfffffff : 0000:01:00.0
e0000000-e01fffff : PCI Bus 0000:0d
ecb00000-ecbfffff : PCI Bus 0000:03
ecb00000-ecb00fff : 0000:03:01.0
ecb00000-ecb00fff : yenta_socket
ecbfe800-ecbfefff : 0000:03:01.4
ecbff000-ecbfffff : 0000:03:01.4
ecbff000-ecbff7ff : ohci1394
ecc00000-ecdfffff : PCI Bus 0000:0d
ece00000-ecefffff : PCI Bus 0000:09
ecef0000-ecefffff : 0000:09:00.0
ecef0000-ecefffff : tg3
ecf00000-ecffffff : PCI Bus 0000:0c
ecfff000-ecffffff : 0000:0c:00.0
ecfff000-ecffffff : iwl3945
ed000000-efefffff : PCI Bus 0000:01
ed000000-edffffff : 0000:01:00.0
ed000000-edffffff : nvidia
ee000000-eeffffff : 0000:01:00.0
ef000000-ef01ffff : 0000:01:00.0
efffc000-efffffff : 0000:00:1b.0
efffc000-efffffff : ICH HD audio
f0000000-f4006fff : reserved
f0000000-f3ffffff : PCI MMCONFIG 0
f4008000-f400bfff : reserved
fec00000-fec0ffff : reserved
fec00000-fec00fff : IOAPIC 0
fed00000-fed003ff : HPET 0
fed00000-fed003ff : pnp 00:0b
fed20000-fed9ffff : reserved
fee00000-fee0ffff : reserved
fee00000-fee00fff : Local APIC
ffa80000-ffa803ff : 0000:00:1d.7
ffa80000-ffa803ff : ehci_hcd
ffb00000-ffffffff : reserved
7.5
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
Subsystem: Dell Device 01cc
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 <?>
Kernel modules: intel-agp
00:01.0 PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Express Root Port (rev 03) (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: ed000000-efefffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
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: [88] Subsystem: Dell Device 01cc
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-
Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Count=1/1 Enable+
Address: fee0300c Data: 4169
Capabilities: [a0] Express (v1) 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 #2, Speed 2.5GT/s, Width x16, ASPM L0s L1, Latency L0 <256ns, L1 <4us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surpise-
Slot # 1, PowerLimit 75.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, 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-
Capabilities: [100] Virtual Channel <?>
Capabilities: [140] Root Complex Link <?>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
Subsystem: Dell Device 01cc
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 21
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+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, 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 #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01) (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=0b, subordinate=0b, 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 (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
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 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <1us, L1 <4us
ClockPM- Suprise- 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+ Surpise+
Slot # 2, PowerLimit 6.500000; 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-
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/1 Enable+
Address: fee0300c Data: 4171
Capabilities: [90] Subsystem: Dell Device 01cc
Capabilities: [a0] 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-
Capabilities: [100] Virtual Channel <?>
Capabilities: [180] Root Complex Link <?>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01) (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=0c, subordinate=0c, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: ecf00000-ecffffff
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 (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
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 #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <256ns, L1 <4us
ClockPM- Suprise- 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+ Surpise+
Slot # 3, PowerLimit 6.500000; 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-
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/1 Enable+
Address: fee0300c Data: 4179
Capabilities: [90] Subsystem: Dell Device 01cc
Capabilities: [a0] 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-
Capabilities: [100] Virtual Channel <?>
Capabilities: [180] Root Complex Link <?>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 01) (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=09, subordinate=09, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: ece00000-ecefffff
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 (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
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 #3, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <256ns, L1 <4us
ClockPM- Suprise- 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+ Surpise+
Slot # 4, PowerLimit 6.500000; 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-
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/1 Enable+
Address: fee0300c Data: 4189
Capabilities: [90] Subsystem: Dell Device 01cc
Capabilities: [a0] 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-
Capabilities: [100] Virtual Channel <?>
Capabilities: [180] Root Complex Link <?>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 01) (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=0d, subordinate=0e, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: ecc00000-ecdfffff
Prefetchable memory behind bridge: 00000000e0000000-00000000e01fffff
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 (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
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 #4, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <1us, L1 <4us
ClockPM- Suprise- 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+ Surpise+
Slot # 5, PowerLimit 6.500000; 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-
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/1 Enable+
Address: fee0300c Data: 4191
Capabilities: [90] Subsystem: Dell Device 01cc
Capabilities: [a0] 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-
Capabilities: [100] Virtual Channel <?>
Capabilities: [180] Root Complex Link <?>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01) (prog-if 00 [UHCI])
Subsystem: Dell Device 01cc
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 20
Region 4: I/O ports at bf80 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01) (prog-if 00 [UHCI])
Subsystem: Dell Device 01cc
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 21
Region 4: I/O ports at bf60 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01) (prog-if 00 [UHCI])
Subsystem: Dell Device 01cc
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 C routed to IRQ 22
Region 4: I/O ports at bf40 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01) (prog-if 00 [UHCI])
Subsystem: Dell Device 01cc
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 D routed to IRQ 23
Region 4: I/O ports at bf20 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI])
Subsystem: Dell Device 01cc
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 20
Region 0: Memory at ffa80000 (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 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1) (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
Bus: primary=00, secondary=03, subordinate=07, sec-latency=32
I/O behind bridge: 00002000-00002fff
Memory behind bridge: ecb00000-ecbfffff
Prefetchable memory behind bridge: 0000000088000000-000000008bffffff
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: [50] Subsystem: Dell Device 01cc
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
Subsystem: Dell Device 01cc
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 <?>
Kernel modules: iTCO_wdt, intel-rng
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01) (prog-if 80 [Master])
Subsystem: Dell Device 01cc
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 17
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at bfa0 [size=16]
Capabilities: [70] 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: ata_piix
Kernel modules: ide-pci-generic, ata_generic, pata_acpi, ata_piix
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
Subsystem: Dell Device 01cc
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 B routed to IRQ 17
Region 4: I/O ports at 10c0 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801
01:00.0 VGA compatible controller: nVidia Corporation G72M [Quadro NVS 110M/GeForce Go 7300] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell Device 01cc
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 16
Region 0: Memory at ed000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at ee000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at ef000000 [disabled] [size=128K]
Capabilities: [60] 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-
Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [78] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <256ns, L1 <4us
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 x16, ASPM L0s L1, Latency L0 <256ns, L1 <4us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities: [100] Virtual Channel <?>
Capabilities: [128] Power Budgeting <?>
Kernel driver in use: nvidia
Kernel modules: nvidia, nvidiafb
03:01.0 CardBus bridge: O2 Micro, Inc. Cardbus bridge (rev 21)
Subsystem: Dell Device 01cc
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: 168
Interrupt: pin A routed to IRQ 19
Region 0: Memory at ecb00000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=03, secondary=04, subordinate=07, sec-latency=176
Memory window 0: 88000000-8bfff000 (prefetchable)
Memory window 1: 8c000000-8ffff000
I/O window 0: 00002000-000020ff
I/O window 1: 00002400-000024ff
BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
16-bit legacy interface ports at 0001
Kernel driver in use: yenta_cardbus
Kernel modules: yenta_socket
03:01.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) (prog-if 10 [OHCI])
Subsystem: Dell Device 01cc
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: 64, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at ecbff000 (32-bit, non-prefetchable) [size=4K]
Region 1: Memory at ecbfe800 (32-bit, non-prefetchable) [size=2K]
Capabilities: [60] 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: ohci1394
Kernel modules: ohci1394
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 02)
Subsystem: Dell Device 01cc
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 4345
Region 0: Memory at ecef0000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at <ignored> [disabled]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] Vital Product Data <?>
Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+ Count=1/8 Enable+
Address: 00000000fee0300c Data: 41c1
Capabilities: [d0] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <4us, 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 4096 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <2us, L1 <64us
ClockPM- Suprise- 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: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSVoil-
CESta: RxErr- BadTLP- BadDLLP+ Rollover- Timeout- NonFatalErr-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [13c] Virtual Channel <?>
Kernel driver in use: tg3
Kernel modules: tg3
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
Subsystem: Intel Corporation Device 1021
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 4346
Region 0: Memory at ecfff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [c8] 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-
Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 Enable+
Address: 00000000fee0100c Data: 41b9
Capabilities: [e0] Express (v1) Legacy 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+
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, Latency L0 <128ns, L1 <64us
ClockPM+ Suprise- 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: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSVoil-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140] Device Serial Number 07-0e-7b-ff-ff-d2-19-00
Kernel driver in use: iwl3945
Kernel modules: iwl3945
7.6
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: Hitachi HTS54161 Rev: SBDO
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: TSSTcorp Model: DVD+-RW TS-L632D Rev: DE03
Type: CD-ROM ANSI SCSI revision: 05
Here is the output from the attached test compiled with -m32 and run under 64-bit Linux 2.6.27.39.
Could not find undodb private space
FUTEX_WAKE_PRIVATE with bad address succeeds
FUTEX_WAKE with zero val woke a process
FUTEX_WAKE with negative val woke a process
FUTEX_REQUEUE returns 1 when waking no processes but requeueing one
KERNELBUG? FUTEX_WAKE_OP arg4 not decoded correctly in 32-bit
KERNELBUG? FUTEX_LOCK_PI with timer returns ETIMEDOUT immediately
KERNELBUG? FUTEX_LOCK_PI_PRIVATE with timer returns ETIMEDOUT immediately
KERNELBUG? FUTEX_WAIT_BITSET with timer returns ETIMEDOUT immediately
KERNELBUG? FUTEX_WAIT_BITSET_PRIVATE with timer returns ETIMEDOUT immediately
Test succeeded
If compiled in 64-bit mode the output is the same but without the line about FUTEX_WAKE_OP.
Here is the output again with my comments.
>>>Could not find undodb private space
Nothing to do with the kernel: it prints this if it isn't running under our debugger.
>>>FUTEX_WAKE_PRIVATE with bad address succeeds
It isn't clear that this is a bug. FUTEX_WAKE always returns -EFAULT with a bad uaddr, because it looks for the vma and doesn't find one. FUTEX_WAIT_PRIVATE only does access_ok(), which is a weak test on x86 architecture. On 32-bit FUTEX_WAKE_PRIVATE always returns 0 because it doesn't find a waiter: on 64-bit it returns -EFAULT if uaddr is negative and otherwise 0. I can see the case for not doing a proper accessibility check since the kernel doesn't actually dereference uaddr for FUTEX_WAKE, but the existing behaviour is a bit inconsistent.
>>>FUTEX_WAKE with zero val woke a process
>>>FUTEX_WAKE with negative val woke a process
>>>FUTEX_REQUEUE returns 1 when waking no processes but requeueing one
These messages are because the kernel doesn't do what the man page says it does. Maybe the man page is wrong.... The treatment of counts of processes to be woken or requeued is a bit inconsistent. Sometimes you wake a process before checking the count (so a zero or negative count is treated as 1) and sometimes you check the count first. Maybe there's some method in your madness, but if so the man page is wrong.
>>>KERNELBUG? FUTEX_WAKE_OP arg4 not decoded correctly in 32-bit
Should already have been fixed by this diff in futex_compat.c from 2.6.27.39 to 2.6.32.3
191c195,196
< if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE)
---
> if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE ||
> cmd == FUTEX_CMP_REQUEUE_PI || cmd == FUTEX_WAKE_OP)
>>>KERNELBUG? FUTEX_LOCK_PI with timer returns ETIMEDOUT immediately
>>>KERNELBUG? FUTEX_LOCK_PI_PRIVATE with timer returns ETIMEDOUT immediately
The problem was in rtmutex.c. The code has changed, so it may be fixed now.
>>>KERNELBUG? FUTEX_WAIT_BITSET with timer returns ETIMEDOUT immediately
>>>KERNELBUG? FUTEX_WAIT_BITSET_PRIVATE with timer returns ETIMEDOUT immediately
This doesn't seem to be fixed yet. I think it should be fixed by this diff to futex.c in version linux-2.6.32.3.
2611c2611
< if (cmd == FUTEX_WAIT)
---
> if ((cmd == FUTEX_WAIT) || (cmd == FUTEX_WAIT_BITSET))
The same change is needed for futex_compat.c.
191c191
< if (cmd == FUTEX_WAIT)
---
> if ((cmd == FUTEX_WAIT) || (cmd == FUTEX_WAIT_BITSET))
>>>Test succeeded
It didn't find any problems that it didn't expect.
Definitions of FUTEX_WAIT_BITSET_PRIVATE and FUTEX_WAKE_BITSET_PRIVATE were bad in linux/futex.h, but have been fixed in linux-2.6.32.3.
The definition of FUTEX_OP in linux/futex.h doesn't protect against the actual arguments being expressions. Here is a safer one
#define FUTEX_OP(op, oparg, cmp, cmparg) \
((((op) & 0xf) << 28) | (((cmp) & 0xf) << 24) \
| (((oparg) & 0xfff) << 12) | ((cmparg) & 0xfff))
Richard P. Parkins, M. A.
rparkins@...o-software.com
View attachment "test1517.c" of type "text/plain" (293594 bytes)
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