从以上的calltrace, 我们可以看到pci_probe会把driver注册的probe钩子放到一个workqueue上执行,然后pci_probe通过wait_for_completion阻塞等待driver_probe完成。由于driver_probe耗时超过120s, 因此触发了hungtask。 2 pci_device_probe pci_device_probe->__pci_device_probe->pci_call_probe pci_call_probe() { /...
“deferred probe timeout, ignoring dependency”错误信息意味着在尝试延迟probe的过程中,系统等待了预定的超时时间后仍未成功probe该设备,因此系统决定忽略该设备的依赖关系并继续启动过程。这通常意味着存在某些问题阻止了设备的正常probe。 列举可能导致linux系统pcie控制器出现该错误的原因 设备依赖问题:如果PCIe控制器或...
This paper describes the design of PCI Probe, a software tool that enables developers to test the functionality of PCI- and PCIe-based peripheral devices connected to computers running the 64-bit Windows 7 operating system. PCI Probe consists of a kernel mode driver component that performs ...
Solved: Hi all, Under linux 3.0.35_4.1, a imx6q-like board is connected to a fpga with a pcie link. Pcie has been configurated like that: iMX6 PCIe
[<802d8484>] (pcie_port_device_register) from [<802d8a80>] (pcie_portdrv_probe+0x44/0xac) r10:bc09dcb0 r9:805e16fc r8:807e4d64 r7:bc4ae000 r6:00000000 r5:807e4d98 r4:bc4ae000 [<802d8a3c>] (pcie_portdrv_probe) from [<802cdca8>] (pci_device_probe+0x7c/...
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The DSTREAM-XT probe features PCIe connectivity, up to 64Gbps trace bandwidth, and a 16GB buffer, for high-performance debugging on Arm processor-based hardware.
DH-CSPHY-PCIE5-CEMX16 DH 系列尖端 - CrossSync PHY PCIe5 CEM x16 差分探头 (8-30 GHz) DH08-PB2- 8 GHz 差分探头,带 ProBus2 接口 DH08-PL- 8 GHz 差分探头,带 ProLink 接口 DH13-PL- 13 GHz 差分探头,带 ProLink 接口 DH16-PL- 16 GHz 差分探头,带 ProLink 接口 ...
Advertisement LeCroy has introduced a multi-lead probe for its Summit T3-16 and T3-8 protocol analyzers. The new probe supports PCI Express 3.0, and is expandable to support from x1 to x16 PCI Express lanes when used with a Summit protocol analyzer. The probe tips are flexible for tapping...
Simplifying signal access for PCIe 2.0 systems testing, the flying leads probe allows access to PCIe 2.0 links at a desired rate. A key feature of the probe is its very low capacity loading and enabling insight without influencing the monitored signals....