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Bug#842226: dmesg: read kernel buffer failed: Operation not permitted

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Kyuma Ohta

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Oct 27, 2016, 2:30:03 AM10/27/16
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Package: src:linux
Version: 4.8.4-1~exp1
Severity: normal

Dear Maintainer,

Using dmesg as non-root user at linux-4.8-trunk, failed to read
kernels' ring buffer as below:
$ dmesg
dmesg: read kernel buffer failed: Operation not permitted

As root user to read, succeeeded.
Is change security policy? If not, please fix.

Regards,
Ohta.

-- Package-specific info:
** Version:
Linux version 4.8.0-trunk-amd64 (debian...@lists.debian.org) (gcc version 5.4.1 20161019 (Debian 5.4.1-3) ) #1 SMP Debian 4.8.4-1~exp1 (2016-10-23)

** Command line:
BOOT_IMAGE=/vmlinuz-4.8.0-trunk-amd64 root=UUID=040b41b0-26fe-4064-af0a-3619f3112096 ro vga=0x3d4 video=vesafb:yrap,noresume quiet systemd.debug-shell iommu=soft vga=0x3d4

** Tainted: OE (12288)
* Out-of-tree module has been loaded.
* Unsigned module has been loaded.

** Kernel log:
[ 6290.813493] ui class: performance
[ 6290.813495] internal class: none
[ 6290.813497] caps:
[ 6290.813499] uvd vclk: 0 dclk: 0
[ 6290.813501] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[ 6290.813503] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[ 6290.813505] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[ 6290.813505] status: c r
[10429.362839] switching from power state:
[10429.362842] ui class: performance
[10429.362844] internal class: none
[10429.362846] caps:
[10429.362849] uvd vclk: 0 dclk: 0
[10429.362852] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[10429.362855] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[10429.362857] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[10429.362858] status: c r
[10429.362860] switching to power state:
[10429.362861] ui class: performance
[10429.362863] internal class: none
[10429.362864] caps:
[10429.362866] uvd vclk: 0 dclk: 0
[10429.362868] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[10429.362870] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[10429.362872] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[10429.362873] status: c r
[12240.171561] switching from power state:
[12240.171564] ui class: performance
[12240.171566] internal class: none
[12240.171568] caps:
[12240.171571] uvd vclk: 0 dclk: 0
[12240.171575] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[12240.171577] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[12240.171579] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[12240.171580] status: c r
[12240.171583] switching to power state:
[12240.171584] ui class: performance
[12240.171585] internal class: none
[12240.171587] caps:
[12240.171589] uvd vclk: 0 dclk: 0
[12240.171591] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[12240.171593] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[12240.171595] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[12240.171596] status: c r
[23213.357573] switching from power state:
[23213.357576] ui class: performance
[23213.357579] internal class: none
[23213.357581] caps:
[23213.357584] uvd vclk: 0 dclk: 0
[23213.357587] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[23213.357589] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[23213.357592] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[23213.357592] status: c r
[23213.357595] switching to power state:
[23213.357596] ui class: performance
[23213.357597] internal class: none
[23213.357599] caps:
[23213.357601] uvd vclk: 0 dclk: 0
[23213.357603] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[23213.357605] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[23213.357607] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[23213.357608] status: c r
[27593.098469] switching from power state:
[27593.098472] ui class: performance
[27593.098474] internal class: none
[27593.098476] caps:
[27593.098479] uvd vclk: 0 dclk: 0
[27593.098482] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[27593.098484] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[27593.098486] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[27593.098487] status: c r
[27593.098490] switching to power state:
[27593.098491] ui class: performance
[27593.098492] internal class: none
[27593.098494] caps:
[27593.098496] uvd vclk: 0 dclk: 0
[27593.098498] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[27593.098500] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[27593.098502] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[27593.098503] status: c r
[32003.698394] switching from power state:
[32003.698396] ui class: performance
[32003.698399] internal class: none
[32003.698401] caps:
[32003.698404] uvd vclk: 0 dclk: 0
[32003.698407] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[32003.698409] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[32003.698412] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[32003.698412] status: c r
[32003.698415] switching to power state:
[32003.698416] ui class: performance
[32003.698417] internal class: none
[32003.698419] caps:
[32003.698421] uvd vclk: 0 dclk: 0
[32003.698423] power level 0 sclk: 30000 mclk: 15000 vddc: 825 vddci: 900 pcie gen: 2
[32003.698425] power level 1 sclk: 40000 mclk: 112500 vddc: 950 vddci: 950 pcie gen: 2
[32003.698427] power level 2 sclk: 100000 mclk: 112500 vddc: 1200 vddci: 950 pcie gen: 2
[32003.698428] status: c r
[32578.005127] mate-panel[3752]: segfault at 4 ip 00007f68bd6dd0d0 sp 00007fff435e8228 error 4 in libgtk-3.so.0.2200.2[7f68bd4d2000+6f8000]
[32581.916630] mate-panel[21543]: segfault at 4 ip 00007fb0e38ed0d0 sp 00007ffc704bad48 error 4 in libgtk-3.so.0.2200.2[7fb0e36e2000+6f8000]

** Model information
sys_vendor: To Be Filled By O.E.M.
product_name: To Be Filled By O.E.M.
product_version: To Be Filled By O.E.M.
chassis_vendor: To Be Filled By O.E.M.
chassis_version: To Be Filled By O.E.M.
bios_vendor: American Megatrends Inc.
bios_version: P2.70
board_vendor: ASRock
board_name: 990FX Extreme4
board_version:

** Loaded modules:
snd_seq_dummy(E)
nls_utf8(E)
isofs(E)
udf(E)
pci_stub(E)
vboxpci(OE)
vboxnetadp(OE)
vboxnetflt(OE)
vboxdrv(OE)
snd_hrtimer(E)
snd_seq(E)
cpufreq_conservative(E)
cpufreq_userspace(E)
cpufreq_powersave(E)
binfmt_misc(E)
sr_mod(E)
xfs(E)
nls_ascii(E)
cdrom(E)
nls_cp437(E)
vfat(E)
mxm_wmi(E)
jfs(E)
fat(E)
ata_generic(E)
pl2303(E)
joydev(E)
usbserial(E)
uas(E)
kvm_amd(E)
kvm(E)
amdkfd(E)
radeon(E)
irqbypass(E)
psmouse(E)
crct10dif_pclmul(E)
crc32_pclmul(E)
ghash_clmulni_intel(E)
efi_pstore(E)
serio_raw(E)
firewire_ohci(E)
efivars(E)
k10temp(E)
fam15h_power(E)
mxl301rf(E)
snd_hda_codec_realtek(E)
snd_hda_codec_hdmi(E)
snd_hda_codec_generic(E)
firewire_core(E)
crc_itu_t(E)
pata_via(E)
qm1d1c0042(E)
tc90522(E)
earth_pt3(E)
sg(E)
snd_hda_intel(E)
snd_hda_codec(E)
dvb_core(E)
ttm(E)
drm_kms_helper(E)
drm(E)
floppy(E)
fjes(E)
pata_atiixp(E)
wmi(E)
sp5100_tco(E)
i2c_algo_bit(E)
snd_hda_core(E)
button(E)
i2c_piix4(E)
acpi_cpufreq(E)
tpm_tis(E)
tpm_tis_core(E)
tpm(E)
cuse(E)
fuse(E)
w83627ehf(E)
hwmon_vid(E)
tg3(E)
ptp(E)
pps_core(E)
libphy(E)
snd_usb_audio(E)
snd_usbmidi_lib(E)
snd_hwdep(E)
snd_rawmidi(E)
snd_seq_device(E)
snd_dummy(E)
snd_pcm(E)
snd_timer(E)
snd(E)
soundcore(E)
loop(E)
parport_pc(E)
ppdev(E)
lp(E)
parport(E)
efivarfs(E)
ip_tables(E)
x_tables(E)
autofs4(E)
overlay(E)
ext4(E)
crc16(E)
jbd2(E)
fscrypto(E)
ecb(E)
mbcache(E)
raid10(E)
raid456(E)
libcrc32c(E)
crc32c_generic(E)
async_raid6_recov(E)
async_memcpy(E)
async_pq(E)
async_xor(E)
xor(E)
async_tx(E)
raid6_pq(E)
raid1(E)
raid0(E)
multipath(E)
linear(E)
md_mod(E)
zsmalloc(E)
deflate(E)
lz4hc(E)
lz4hc_compress(E)
lz4(E)
lz4_compress(E)
evdev(E)
hid_generic(E)
usbhid(E)
hid(E)
sd_mod(E)
usb_storage(E)
ohci_pci(E)
crc32c_intel(E)
aesni_intel(E)
aes_x86_64(E)
glue_helper(E)
lrw(E)
gf128mul(E)
ablk_helper(E)
cryptd(E)
ahci(E)
libahci(E)
xhci_pci(E)
ohci_hcd(E)
ehci_pci(E)
xhci_hcd(E)
ehci_hcd(E)
libata(E)
usbcore(E)
scsi_mod(E)
usb_common(E)
shpchp(E)

** PCI devices:
00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (external gfx0 port B) [1002:5a14] (rev 02)
Subsystem: ASRock Incorporation RD9x0/RX980 Host Bridge [1849:5a14]
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-
Capabilities: <access denied>

00:00.2 IOMMU [0806]: Advanced Micro Devices, Inc. [AMD/ATI] RD990 I/O Memory Management Unit (IOMMU) [1002:5a23]
Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] RD890S/RD990 I/O Memory Management Unit (IOMMU) [1002:5a23]
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 0
Capabilities: <access denied>

00:02.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (PCI express gpp port B) [1002:5a16] (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
Interrupt: pin A routed to IRQ 24
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fea00000-feafffff
Prefetchable memory behind bridge: 00000000c0000000-00000000cfffffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (PCI express gpp port D) [1002:5a18] (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
Interrupt: pin A routed to IRQ 24
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fe900000-fe9fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:05.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (PCI express gpp port E) [1002:5a19] (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
Interrupt: pin A routed to IRQ 24
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Memory behind bridge: fe800000-fe8fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (PCI express gpp port F) [1002:5a1a] (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
Interrupt: pin A routed to IRQ 25
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
Memory behind bridge: fe700000-fe7fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:09.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (PCI express gpp port H) [1002:5a1c] (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
Interrupt: pin A routed to IRQ 25
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fe600000-fe6fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:0a.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (external gfx1 port A) [1002:5a1d] (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
Interrupt: pin A routed to IRQ 26
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
Memory behind bridge: fe500000-fe5fffff
Prefetchable memory behind bridge: 00000000d0100000-00000000d01fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:0b.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] RD890 PCI to PCI bridge (NB-SB link) [1002:5a1f] (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
Interrupt: pin A routed to IRQ 26
Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
Prefetchable memory behind bridge: 00000000d0000000-00000000d00fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:11.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1002:4391] (rev 40) (prog-if 01 [AHCI 1.0])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1849:4391]
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: 32
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at f090 [size=8]
Region 1: I/O ports at f080 [size=4]
Region 2: I/O ports at f070 [size=8]
Region 3: I/O ports at f060 [size=4]
Region 4: I/O ports at f050 [size=16]
Region 5: Memory at feb0b000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

00:12.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] (prog-if 10 [OHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1849:4397]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at feb0a000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci

00:12.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] (prog-if 20 [EHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB EHCI Controller [1849:4396]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
Region 0: Memory at feb09000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:13.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] (prog-if 10 [OHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1849:4397]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at feb08000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci

00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] (prog-if 20 [EHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB EHCI Controller [1849:4396]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
Region 0: Memory at feb07000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller [1002:4385] (rev 42)
Subsystem: ASRock Incorporation SBx00 SMBus Controller [1849:4385]
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-
Kernel driver in use: piix4_smbus
Kernel modules: i2c_piix4, sp5100_tco

00:14.1 IDE interface [0101]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 IDE Controller [1002:439c] (rev 40) (prog-if 8a [Master SecP PriP])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 IDE Controller [1849:439c]
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: 32
Interrupt: pin B routed to IRQ 17
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374
Region 4: I/O ports at f000 [size=16]
Kernel driver in use: pata_atiixp
Kernel modules: pata_atiixp, ata_generic

00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) [1002:4383] (rev 40)
Subsystem: ASRock Incorporation SBx00 Azalia (Intel HDA) [1849:7892]
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, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at feb00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller [1002:439d] (rev 40)
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 LPC host controller [1849:439d]
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

00:14.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge [1002:4384] (rev 40) (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=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Bus: primary=00, secondary=08, subordinate=08, sec-latency=64
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-

00:14.5 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1002:4399] (prog-if 10 [OHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1849:4399]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin C routed to IRQ 18
Region 0: Memory at feb06000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci

00:15.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0) [1002:43a0] (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
Interrupt: pin A routed to IRQ 16
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
Memory behind bridge: fe400000-fe4fffff
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: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:16.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] (prog-if 10 [OHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1849:4397]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at feb05000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci

00:16.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] (prog-if 20 [EHCI])
Subsystem: ASRock Incorporation SB7x0/SB8x0/SB9x0 USB EHCI Controller [1849:4396]
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: 32, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
Region 0: Memory at feb04000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h Processor Function 0 [1022:1600]
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-
Capabilities: <access denied>

00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h Processor Function 1 [1022:1601]
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-

00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h Processor Function 2 [1022:1602]
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-

00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h Processor Function 3 [1022:1603]
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-
Capabilities: <access denied>
Kernel driver in use: k10temp
Kernel modules: k10temp

00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h Processor Function 4 [1022:1604]
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-
Kernel driver in use: fam15h_power
Kernel modules: fam15h_power

00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h Processor Function 5 [1022:1605]
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-

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde XT [Radeon HD 7770/8760 / R7 250X] [1002:683d] (prog-if 00 [VGA controller])
Subsystem: PC Partner Limited / Sapphire Technology Cape Verde XT [Radeon HD 7770/8760 / R7 250X] [174b:e214]
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 47
Region 0: Memory at c0000000 (64-bit, prefetchable) [size=256M]
Region 2: Memory at fea00000 (64-bit, non-prefetchable) [size=256K]
Region 4: I/O ports at e000 [size=256]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeon

01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] [1002:aab0]
Subsystem: PC Partner Limited / Sapphire Technology Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] [174b:aab0]
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 B routed to IRQ 43
Region 0: Memory at fea60000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

02:00.0 SATA controller [0106]: Marvell Technology Group Ltd. 88SE9120 SATA 6Gb/s Controller [1b4b:9120] (rev 12) (prog-if 01 [AHCI 1.0])
Subsystem: ASRock Incorporation 88SE9120 SATA 6Gb/s Controller [1849:9120]
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 32
Region 0: I/O ports at d090 [size=8]
Region 1: I/O ports at d080 [size=4]
Region 2: I/O ports at d070 [size=8]
Region 3: I/O ports at d060 [size=4]
Region 4: I/O ports at d050 [size=16]
Region 5: Memory at fe915000 (32-bit, non-prefetchable) [size=2K]
Expansion ROM at fe900000 [disabled] [size=64K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

03:00.0 USB controller [0c03]: Etron Technology, Inc. EJ168 USB 3.0 Host Controller [1b6f:7023] (rev 01) (prog-if 30 [XHCI])
Subsystem: ASRock Incorporation EJ168 USB 3.0 Host Controller [1849:7023]
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 fe800000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci

04:00.0 USB controller [0c03]: Etron Technology, Inc. EJ168 USB 3.0 Host Controller [1b6f:7023] (rev 01) (prog-if 30 [XHCI])
Subsystem: ASRock Incorporation EJ168 USB 3.0 Host Controller [1849:7023]
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 30
Region 0: Memory at fe700000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci

05:00.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6315 Series Firewire Controller [1106:3403] (prog-if 10 [OHCI])
Subsystem: ASRock Incorporation VT6315 Series Firewire Controller [1849:3403]
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 45
Region 0: Memory at fe610000 (64-bit, non-prefetchable) [size=2K]
Region 2: I/O ports at c000 [size=256]
Capabilities: <access denied>
Kernel driver in use: firewire_ohci
Kernel modules: firewire_ohci

05:00.1 IDE interface [0101]: VIA Technologies, Inc. VT6415 PATA IDE Host Controller [1106:0415] (rev a0) (prog-if 85 [Master SecO PriO])
Subsystem: ASRock Incorporation VT6415 PATA IDE Host Controller [1849:0415]
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 45
Region 0: I/O ports at c140 [size=8]
Region 1: I/O ports at c130 [size=4]
Region 2: I/O ports at c120 [size=8]
Region 3: I/O ports at c110 [size=4]
Region 4: I/O ports at c100 [size=16]
Expansion ROM at fe600000 [disabled] [size=64K]
Capabilities: <access denied>
Kernel driver in use: pata_via
Kernel modules: pata_via, ata_generic

06:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57781 Gigabit Ethernet PCIe [14e4:16b1] (rev 10)
Subsystem: ASRock Incorporation Z77 Extreme4 motherboard [1849:96b1]
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 41
Region 0: Memory at d0110000 (64-bit, prefetchable) [size=64K]
Region 2: Memory at d0100000 (64-bit, prefetchable) [size=64K]
Expansion ROM at fe500000 [disabled] [size=2K]
Capabilities: <access denied>
Kernel driver in use: tg3
Kernel modules: tg3

07:00.0 Multimedia controller [0480]: Altera Corporation Device [1172:4c15] (rev 01)
Subsystem: Device [ee8d:0368]
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 d0001000 (64-bit, prefetchable) [size=4K]
Region 2: Memory at d0000000 (64-bit, prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: earth_pt3
Kernel modules: earth_pt3

09:00.0 USB controller [0c03]: Renesas Technology Corp. uPD720202 USB 3.0 Host Controller [1912:0015] (rev 02) (prog-if 30 [XHCI])
Subsystem: Renesas Technology Corp. uPD720202 USB 3.0 Host Controller [1912:0015]
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 16
Region 0: Memory at fe400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci


** USB devices:
Bus 007 Device 004: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T
Bus 007 Device 003: ID 0411:01ea BUFFALO INC. (formerly MelCo., Inc.)
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 013 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 013 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 010 Device 002: ID 067b:2775 Prolific Technology, Inc.
Bus 010 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 012 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 011 Device 004: ID 0553:0a02 STMicroelectronics Imaging Division (VLSI Vision)
Bus 011 Device 003: ID 05b8:1004 Agiler, Inc.
Bus 011 Device 002: ID 04e6:511a SCM Microsystems, Inc.
Bus 011 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 002: ID 0566:3107 Monterey International Corp. Keyboard
Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 067b:2775 Prolific Technology, Inc.
Bus 003 Device 002: ID 067b:2775 Prolific Technology, Inc.
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'stable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.8.0-trunk-amd64 (SMP w/8 CPU cores)
Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to ja_JP.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-4.8.0-trunk-amd64-unsigned depends on:
ii initramfs-tools [linux-initramfs-tool] 0.125
ii kmod 22-1.1
ii linux-base 4.5

Versions of packages linux-image-4.8.0-trunk-amd64-unsigned recommends:
ii firmware-linux-free 3.4
ii irqbalance 1.1.0-2

Versions of packages linux-image-4.8.0-trunk-amd64-unsigned suggests:
ii debian-kernel-handbook 1.0.17
ii extlinux 3:6.03+dfsg-14
ii grub-efi-amd64 2.02~beta3-1
ii linux-doc-4.8 4.8.4-1~exp1

Versions of packages linux-image-4.8.0-trunk-amd64-unsigned is related to:
ii firmware-amd-graphics 20160824-1
ii firmware-atheros 20160824-1
ii firmware-bnx2 20160824-1
ii firmware-bnx2x 20160824-1
ii firmware-brcm80211 20160824-1
ii firmware-cavium 20160824-1
ii firmware-intel-sound 20160824-1
ii firmware-intelwimax 20160824-1
ii firmware-ipw2x00 20160824-1
ii firmware-ivtv 20160824-1
ii firmware-iwlwifi 20160824-1
ii firmware-libertas 20160824-1
ii firmware-linux-nonfree 20160824-1
ii firmware-misc-nonfree 20160824-1
ii firmware-myricom 20160824-1
ii firmware-netxen 20160824-1
ii firmware-qlogic 20160824-1
ii firmware-realtek 20160824-1
ii firmware-samsung 20160824-1
ii firmware-siano 20160824-1
ii firmware-ti-connectivity 20160824-1
pn xen-hypervisor <none>

-- no debconf information

Debian Bug Tracking System

unread,
Oct 27, 2016, 9:40:03 AM10/27/16
to
Your message dated Thu, 27 Oct 2016 14:37:46 +0100
with message-id <1477575466....@decadent.org.uk>
and subject line Re: Bug#842226: dmesg: read kernel buffer failed: Operation not permitted
has caused the Debian Bug report #842226,
regarding dmesg: read kernel buffer failed: Operation not permitted
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


--
842226: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=842226
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
signature.asc

Vincent Blut

unread,
Oct 27, 2016, 10:00:05 AM10/27/16
to
On Thu, Oct 27, 2016 at 03:21:14PM +0900, Kyuma Ohta wrote:
>Package: src:linux
>Version: 4.8.4-1~exp1
>Severity: normal
>
>Dear Maintainer,
>
>Using dmesg as non-root user at linux-4.8-trunk, failed to read
>kernels' ring buffer as below:
>$ dmesg
>dmesg: read kernel buffer failed: Operation not permitted
>
>As root user to read, succeeeded.
>Is change security policy? If not, please fix.

Hello,

Part of the changelog from the aforementioned kernel:
* security,printk: Enable SECURITY_DMESG_RESTRICT, preventing non-root
users reading the kernel log by default (sysctl: kernel.dmesg_restrict)

>Regards,
>Ohta.

Cheers,
Vincent
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