Here is the output, and I can see "HotPlug+ Surprise+" on SltCap
# lspci -vvv -s 0000:83:05.0
83:05.0 PCI bridge: PLX Technology, Inc. PEX 8734 32-lane, 8-Port PCI
Express Gen 3 (8.0GT/s) Switch (rev ab) (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: 32 bytes
Interrupt: pin A routed to IRQ 40
NUMA node: 1
Bus: primary=83, secondary=85, subordinate=85, sec-latency=0
I/O behind bridge: 00009000-00009fff
Memory behind bridge: c8600000-c86fffff
Prefetchable memory behind bridge: 000003c000200000-000003c0003fffff
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] 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: [48] MSI: Enable+ Count=1/8 Maskable+ 64bit+
Address: 00000000fee00118 Data: 0000
Masking: 000000fe Pending: 00000000
Capabilities: [68] Express (v2) Downstream Port (Slot+), MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0
ExtTag- RBE+
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 8GT/s, Width x4, ASPM L1, Exit
Latency L0s <4us, L1 <4us
ClockPM- Surprise+ LLActRep+ BwNot+ ASPMOptComp+
LnkCtl: ASPM Disabled; Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x4, TrErr- Train- SlotClk-
DLActive+ BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+
Surprise+
Slot #181, PowerLimit 25.000W; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet+ CmdCplt+
HPIrq+ LinkChg+
Control: AttnInd Unknown, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
Interlock-
Changed: MRL- PresDet- LinkState-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR+,
OBFF Via message ARIFwd+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled ARIFwd+
LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete+, EqualizationPhase1+
EqualizationPhase2+, EqualizationPhase3+,
LinkEqualizationRequest-
Capabilities: [a4] Subsystem: Dell Device 1f84
Capabilities: [100 v1] Device Serial Number ab-87-00-10-b5-df-0e-00
Capabilities: [fb4 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: 1f, GenCap+ CGenEn+ ChkCap+ ChkEn+
Capabilities: [138 v1] Power Budgeting <?>
Capabilities: [10c v1] #19
Capabilities: [148 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [e00 v1] #12
Capabilities: [f24 v1] Access Control Services
ACSCap: SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+
UpstreamFwd+ EgressCtrl+ DirectTrans+
ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir-
UpstreamFwd- EgressCtrl- DirectTrans-
Capabilities: [b70 v1] Vendor Specific Information: ID=0001 Rev=0
Len=010 <?>
Kernel driver in use: pcieport
Kernel modules: shpchp
Thanks
Yi
On 06/06/2018 01:21 AM, Keith Busch wrote:
On Tue, Jun 05, 2018 at 10:18:53AM -0600, Keith Busch wrote:
On Wed, May 30, 2018 at 03:26:54AM -0400, Yi Zhang wrote:
Hi Keith
I found blktest block/019 also can lead my NVMe server hang with 4.17.0-rc7,
let me know if you need more info, thanks.
Server: Dell R730xd
NVMe SSD: 85:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd
NVMe SSD Controller 172X (rev 01)
Console log:
Kernel 4.17.0-rc7 on an x86_64
storageqe-62 login: [ 6043.121834] run blktests block/019 at 2018-05-30 03:16:34
[ 6049.108476] {1}[Hardware Error]: Hardware error from APEI Generic Hardware
Error Source: 3
[ 6049.108478] {1}[Hardware Error]: event severity: fatal
[ 6049.108479] {1}[Hardware Error]: Error 0, type: fatal
[ 6049.108481] {1}[Hardware Error]: section_type: PCIe error
[ 6049.108482] {1}[Hardware Error]: port_type: 6, downstream switch port
[ 6049.108483] {1}[Hardware Error]: version: 1.16
[ 6049.108484] {1}[Hardware Error]: command: 0x0407, status: 0x0010
[ 6049.108485] {1}[Hardware Error]: device_id: 0000:83:05.0
[ 6049.108486] {1}[Hardware Error]: slot: 0
[ 6049.108487] {1}[Hardware Error]: secondary_bus: 0x85
[ 6049.108488] {1}[Hardware Error]: vendor_id: 0x10b5, device_id: 0x8734
[ 6049.108489] {1}[Hardware Error]: class_code: 000406
[ 6049.108489] {1}[Hardware Error]: bridge: secondary_status: 0x0000,
control: 0x0003
[ 6049.108491] Kernel panic - not syncing: Fatal hardware error!
[ 6049.108514] Kernel Offset: 0x25800000 from 0xffffffff81000000 (relocation
range: 0xffffffff80000000-0xffffffffbfffffff)
Could you attach 'lspci -vvv -s 0000:83:05.0'? Just want to see
your switch's capabilities to confirm the pre-test checks are really
sufficient.
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