Hi Konrad,
I have changed my setup a bit, using my old workstation as a xen test platform
at the moment.
I'm now running:
- Xen-unstable xen_changeset : Fri Sep 10 19:06:33 2010
+0100 22132:3985fea87987
- Dom0: pvops stable-2.6.32.x last commit
b297cdac0373625d3cd0e6f2b393570dcf2edba6
- DomU: Own merge of:
-linus 2.6.36(-rc4) tree last commit
9c03f1622af051004416dd3e24d8a0fa31e34178
-your pci-front 0.6 tree
- Only one domU is running (copy of the one i used before on the other machine)
- Only one pci-e xhci hostcontroller is passed through (02:00.0)
- domU is booted with only iommu-soft
What happens:
- domU boots fine, pci device is present, lsusb shows the card, but the
grab util can't find the grabber on /dev/video0
- The app keeps on trying ..
- What i do see is a continuing stream of suspected kmemleaks in the domU
Any more debug info/output can of course be generated ...
--
Sander
unreferenced object 0xffff88002d7004c0 (size 32):
comm "swapper", pid 1, jiffies 4294667951 (age 931.016s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bac4c>] xen_setup_msi_irqs+0xec/0x17e
[<ffffffff8124aa95>] pci_enable_msix+0x3b1/0x3c2
[<ffffffff813fd538>] xhci_run+0x108/0x520
[<ffffffff813e9aa1>] usb_add_hcd+0x34f/0x62e
[<ffffffff813f60a6>] usb_hcd_pci_probe+0x23d/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
[<ffffffff81313aaf>] __driver_attach+0x5c/0x7f
security:~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88002fc025c0 (size 64):
comm "swapper", pid 1, jiffies 4294667307 (age 934.525s)
hex dump (first 32 bytes):
f8 0c 00 00 00 00 00 00 ff 0c 00 00 00 00 00 00 ................
a5 38 a8 81 ff ff ff ff 00 00 00 80 00 00 00 00 .8..............
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff81079ccb>] kzalloc+0xf/0x11
[<ffffffff81079d20>] __request_region+0x53/0x18b
[<ffffffff81db1b0d>] pci_direct_probe+0x3c/0x276
[<ffffffff81db18df>] pci_arch_init+0xe/0x69
[<ffffffff810020aa>] do_one_initcall+0x7c/0x15c
[<ffffffff81d7e741>] kernel_init+0x158/0x1e2
[<ffffffff81039b24>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88002fc02600 (size 64):
comm "swapper", pid 1, jiffies 4294667307 (age 934.525s)
hex dump (first 32 bytes):
f8 0c 00 00 00 00 00 00 fb 0c 00 00 00 00 00 00 ................
af 38 a8 81 ff ff ff ff 00 00 00 80 00 00 00 00 .8..............
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff81079ccb>] kzalloc+0xf/0x11
[<ffffffff81079d20>] __request_region+0x53/0x18b
[<ffffffff81db1c20>] pci_direct_probe+0x14f/0x276
[<ffffffff81db18df>] pci_arch_init+0xe/0x69
[<ffffffff810020aa>] do_one_initcall+0x7c/0x15c
[<ffffffff81d7e741>] kernel_init+0x158/0x1e2
[<ffffffff81039b24>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88002fc02640 (size 64):
comm "swapper", pid 1, jiffies 4294667307 (age 934.525s)
hex dump (first 32 bytes):
00 c0 00 00 00 00 00 00 ff cf 00 00 00 00 00 00 ................
af 38 a8 81 ff ff ff ff 00 00 00 80 00 00 00 00 .8..............
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff81079ccb>] kzalloc+0xf/0x11
[<ffffffff81079d20>] __request_region+0x53/0x18b
[<ffffffff81db1c4c>] pci_direct_probe+0x17b/0x276
[<ffffffff81db18df>] pci_arch_init+0xe/0x69
[<ffffffff810020aa>] do_one_initcall+0x7c/0x15c
[<ffffffff81d7e741>] kernel_init+0x158/0x1e2
[<ffffffff81039b24>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88002d700460 (size 32):
comm "swapper", pid 1, jiffies 4294667948 (age 933.884s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bad29>] xen_pcifront_enable_irq+0x4b/0x7a
[<ffffffff814bc1c4>] pcibios_enable_device+0x29/0x2d
[<ffffffff81240166>] do_pci_enable_device+0x28/0x40
[<ffffffff812401d3>] __pci_enable_device_flags+0x55/0x69
[<ffffffff812401f5>] pci_enable_device+0xe/0x10
[<ffffffff813f5eab>] usb_hcd_pci_probe+0x42/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
unreferenced object 0xffff88002d7002a0 (size 32):
comm "swapper", pid 1, jiffies 4294667951 (age 933.918s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bac4c>] xen_setup_msi_irqs+0xec/0x17e
[<ffffffff8124aa95>] pci_enable_msix+0x3b1/0x3c2
[<ffffffff813fd538>] xhci_run+0x108/0x520
[<ffffffff813e9aa1>] usb_add_hcd+0x34f/0x62e
[<ffffffff813f60a6>] usb_hcd_pci_probe+0x23d/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
[<ffffffff81313aaf>] __driver_attach+0x5c/0x7f
unreferenced object 0xffff88002d7004c0 (size 32):
comm "swapper", pid 1, jiffies 4294667951 (age 933.918s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bac4c>] xen_setup_msi_irqs+0xec/0x17e
[<ffffffff8124aa95>] pci_enable_msix+0x3b1/0x3c2
[<ffffffff813fd538>] xhci_run+0x108/0x520
[<ffffffff813e9aa1>] usb_add_hcd+0x34f/0x62e
[<ffffffff813f60a6>] usb_hcd_pci_probe+0x23d/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
[<ffffffff81313aaf>] __driver_attach+0x5c/0x7f
security:~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88002fc025c0 (size 64):
comm "swapper", pid 1, jiffies 4294667307 (age 935.641s)
hex dump (first 32 bytes):
f8 0c 00 00 00 00 00 00 ff 0c 00 00 00 00 00 00 ................
a5 38 a8 81 ff ff ff ff 00 00 00 80 00 00 00 00 .8..............
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff81079ccb>] kzalloc+0xf/0x11
[<ffffffff81079d20>] __request_region+0x53/0x18b
[<ffffffff81db1b0d>] pci_direct_probe+0x3c/0x276
[<ffffffff81db18df>] pci_arch_init+0xe/0x69
[<ffffffff810020aa>] do_one_initcall+0x7c/0x15c
[<ffffffff81d7e741>] kernel_init+0x158/0x1e2
[<ffffffff81039b24>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88002fc02600 (size 64):
comm "swapper", pid 1, jiffies 4294667307 (age 935.641s)
hex dump (first 32 bytes):
f8 0c 00 00 00 00 00 00 fb 0c 00 00 00 00 00 00 ................
af 38 a8 81 ff ff ff ff 00 00 00 80 00 00 00 00 .8..............
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff81079ccb>] kzalloc+0xf/0x11
[<ffffffff81079d20>] __request_region+0x53/0x18b
[<ffffffff81db1c20>] pci_direct_probe+0x14f/0x276
[<ffffffff81db18df>] pci_arch_init+0xe/0x69
[<ffffffff810020aa>] do_one_initcall+0x7c/0x15c
[<ffffffff81d7e741>] kernel_init+0x158/0x1e2
[<ffffffff81039b24>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88002fc02640 (size 64):
comm "swapper", pid 1, jiffies 4294667307 (age 935.641s)
hex dump (first 32 bytes):
00 c0 00 00 00 00 00 00 ff cf 00 00 00 00 00 00 ................
af 38 a8 81 ff ff ff ff 00 00 00 80 00 00 00 00 .8..............
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff81079ccb>] kzalloc+0xf/0x11
[<ffffffff81079d20>] __request_region+0x53/0x18b
[<ffffffff81db1c4c>] pci_direct_probe+0x17b/0x276
[<ffffffff81db18df>] pci_arch_init+0xe/0x69
[<ffffffff810020aa>] do_one_initcall+0x7c/0x15c
[<ffffffff81d7e741>] kernel_init+0x158/0x1e2
[<ffffffff81039b24>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88002d700460 (size 32):
comm "swapper", pid 1, jiffies 4294667948 (age 935.008s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bad29>] xen_pcifront_enable_irq+0x4b/0x7a
[<ffffffff814bc1c4>] pcibios_enable_device+0x29/0x2d
[<ffffffff81240166>] do_pci_enable_device+0x28/0x40
[<ffffffff812401d3>] __pci_enable_device_flags+0x55/0x69
[<ffffffff812401f5>] pci_enable_device+0xe/0x10
[<ffffffff813f5eab>] usb_hcd_pci_probe+0x42/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
unreferenced object 0xffff88002d7002a0 (size 32):
comm "swapper", pid 1, jiffies 4294667951 (age 935.035s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bac4c>] xen_setup_msi_irqs+0xec/0x17e
[<ffffffff8124aa95>] pci_enable_msix+0x3b1/0x3c2
[<ffffffff813fd538>] xhci_run+0x108/0x520
[<ffffffff813e9aa1>] usb_add_hcd+0x34f/0x62e
[<ffffffff813f60a6>] usb_hcd_pci_probe+0x23d/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
[<ffffffff81313aaf>] __driver_attach+0x5c/0x7f
unreferenced object 0xffff88002d7004c0 (size 32):
comm "swapper", pid 1, jiffies 4294667951 (age 935.035s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815f3030>] kmemleak_alloc+0x21/0x3e
[<ffffffff81117e5c>] __kmalloc+0x1c1/0x1eb
[<ffffffff8105459a>] kzalloc_node+0xf/0x11
[<ffffffff81054ef8>] get_one_free_irq_cfg+0x1a/0x46
[<ffffffff81054f3e>] arch_init_chip_data+0x1a/0x3a
[<ffffffff815f285a>] irq_to_desc_alloc_node+0x168/0x199
[<ffffffff81298972>] xen_allocate_pirq+0x7e/0x110
[<ffffffff814bac4c>] xen_setup_msi_irqs+0xec/0x17e
[<ffffffff8124aa95>] pci_enable_msix+0x3b1/0x3c2
[<ffffffff813fd538>] xhci_run+0x108/0x520
[<ffffffff813e9aa1>] usb_add_hcd+0x34f/0x62e
[<ffffffff813f60a6>] usb_hcd_pci_probe+0x23d/0x35b
[<ffffffff812405e7>] local_pci_probe+0x48/0x91
[<ffffffff81240995>] pci_device_probe+0x5f/0x89
[<ffffffff81313998>] driver_probe_device+0xb2/0x16d
[<ffffffff81313aaf>] __driver_attach+0x5c/0x7f
lspci domU:
02:00.0 USB Controller [0c03]: NEC Corporation Device [1033:0194] (rev 03)
(prog-if 30)
Subsystem: Micro-Star International Co., Ltd. Device [1462:4257]
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 17
Region 0: Memory at fea00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
Vector table: BAR=0 offset=00001000
PBA: BAR=0 offset=00001080
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0
<4us, L1 unlimited
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB
Capabilities: [100] 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] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
Capabilities: [150] #18
Kernel driver in use: xhci_hcd
lspci dom0:
02:00.0 USB Controller [0c03]: NEC Corporation Device [1033:0194] (rev 03)
(prog-if 30)
Subsystem: Micro-Star International Co., Ltd. Device [1462:4257]
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 17
Region 0: Memory at fea00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [70] Message Signalled Interrupts: Mask- 64bit+ Queue=0/3
Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [90] MSI-X: Enable+ Mask- TabSize=8
Vector table: BAR=0 offset=00001000
PBA: BAR=0 offset=00001080
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0
<4us, L1 unlimited
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 <?>
Capabilities: [140] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
Capabilities: [150] #18
Kernel driver in use: pciback
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