lspci -nn output for this adapter:
04:00.1 Ethernet controller [0200]: Intel Corporation 82599 10 Gigabit Dual
Port Backplane Connection [8086:10f8] (rev 01)
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 140
Region 0: Memory at fbc00000 (64-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at b000 [size=32]
Region 4: Memory at fbc40000 (64-bit, non-prefetchable) [size=16K]
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=1 PME-
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [70] MSI-X: Enable+ Count=64 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00002000
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns,
L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+
Unsupported+
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr-
TransPend-
LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s, Exit Latency
L0s unlimited, L1 <8us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [e0] Vital Product Data
Unknown small resource type 06, will not decode more.
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Device Serial Number 00-00-00-ff-ff-00-00-00
Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [160 v1] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration-, Interrupt Message Number: 000
IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy-
IOVSta: Migration-
Initial VFs: 64, Total VFs: 64, Number of VFs: 0, Function
Dependency Link: 01
VF offset: 128, stride: 2, Device ID: 10ed
Supported Page Size: 00000553, System Page Size: 00000001
Region 0: Memory at 0000000090600000 (64-bit, prefetchable)
Region 3: Memory at 0000000090700000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Kernel driver in use: ixgbe
ethtool -i output for this adapter:
driver: ixgbe
version: 4.2.1-k
firmware-version: 0x800003e8
bus-info: 0000:04:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
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https://bugs.launchpad.net/bugs/1794877
Title:
Crash in ixgbe, during tx packet xmit (while potentially changing
queues number)
Status in linux package in Ubuntu:
Confirmed
Bug description:
It was reported that ixgbe driver may crash with the following stack
trace, while changing interrupt/queue configuration (probably using
ethtool --set-channel):
[28661.949147] init: irqbalance main process (19397) killed by TERM signal
[28662.381154] ixgbe 0000:04:00.0: removed PHC on eth4
[28662.502142] ixgbe 0000:04:00.0: Multiqueue Enabled: Rx Queue count = 18,
Tx Queue count = 18
[28662.588634] ixgbe 0000:04:00.0: registered PHC device on eth4
[28662.689789] br-iscsi-left: port 1(eth4.4011) entered disabled state
[28662.689951] br-sio-bel: port 1(eth4.4015) entered disabled state
[28662.690039] br-sio-fel: port 1(eth4.4017) entered disabled state
[28662.694227] ixgbe 0000:04:00.0 eth4: NIC Link is Up 10 Gbps, Flow Control:
RX/TX
[28662.694506] br-iscsi-left: port 1(eth4.4011) entered forwarding state
[28662.694519] br-iscsi-left: port 1(eth4.4011) entered forwarding state
[28662.694596] br-sio-bel: port 1(eth4.4015) entered forwarding state
[28662.694604] br-sio-bel: port 1(eth4.4015) entered forwarding state
[28662.694651] br-sio-fel: port 1(eth4.4017) entered forwarding state
[28662.694658] br-sio-fel: port 1(eth4.4017) entered forwarding state
[28662.709921] ixgbe 0000:04:00.1: removed PHC on eth5
[28662.834289] ixgbe 0000:04:00.1: Multiqueue Enabled: Rx Queue count = 18,
Tx Queue count = 18
[28662.915121] ixgbe 0000:04:00.1: registered PHC device on eth5
[28663.018209] ixgbe 0000:04:00.1 eth5: NIC Link is Up 10 Gbps, Flow Control:
RX/TX
[28663.018356] BUG: unable to handle kernel NULL pointer dereference at
0000000000000058
[28663.026266] IP: [<ffffffffc00ddb21>] ixgbe_xmit_frame_ring+0x81/0xf50
[ixgbe]
[28663.033491] PGD 8000000046bcc067 PUD 46bcd067 PMD 0
[28663.038562] Oops: 0000 [#1] SMP
[28663.328921] Call Trace:
[28663.334598] <IRQ>
[28663.336551] [<ffffffffc00dea32>] ixgbe_xmit_frame+0x42/0x90 [ixgbe]
[28663.349627] [<ffffffff8171532d>] dev_hard_start_xmit+0x23d/0x400
[28663.358854] [<ffffffff81739d44>] sch_direct_xmit+0xe4/0x1f0
[28663.367602] [<ffffffff81739eeb>] __qdisc_run+0x9b/0x1c0
[28663.376110] [<ffffffff8171220e>] net_tx_action+0x15e/0x240
[28663.384673] [<ffffffff81084fb6>] __do_softirq+0xe6/0x2a0
[28663.392944] [<ffffffff81085395>] irq_exit+0x95/0xa0
[28663.400720] [<ffffffff8181d0f6>] do_IRQ+0x56/0xe0
[28663.408338] [<ffffffff8181a77f>] common_interrupt+0xbf/0xbf
[28663.416733] <EOI>
[28663.418680] [<ffffffff810998dc>] ? worker_thread+0x18c/0x480
[28663.430363] [<ffffffff81099750>] ? rescuer_thread+0x310/0x310
[28663.438870] [<ffffffff8109f138>] kthread+0xd8/0xf0
[28663.446368] [<ffffffff8109f060>] ? kthread_park+0x60/0x60
[28663.454385] [<ffffffff81819ff5>] ret_from_fork+0x55/0x80
[28663.462286] [<ffffffff8109f060>] ? kthread_park+0x60/0x60
[28663.470488] Code: 2a 41 83 e8 01 31 c0 45 0f b7 c0 49 83 c0 01 49 c1 e0 04
8b 74 07 3c 48 83 c0 10 8d 96 ff 3f 00 00 c1 ea 0e 01 d1 4c 39 c0 75 e8 <0f> b7
43 58 0f b7 73 5a 83 c1 03 31 d2 66 39 f0 66 0f 43 53 54
[28663.498992] RIP [<ffffffffc00ddb21>] ixgbe_xmit_frame_ring+0x81/0xf50
[ixgbe]
[28663.512112] RSP <ffff88103f283d20>
[28663.518217] CR2: 0000000000000058
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