On 3 January 2013 23:41, Jiang Liu <liuj97@xxxxxxxxx> wrote: > On 01/03/2013 11:11 PM, Daniel J Blueman wrote: >> When the Apple thunderbolt ethernet adapter comes loose on my Macbook >> Pro Retina (Intel DSL3510), we see pci_slot_name return >> non-deterministic data (ie varying each boot), and we see pciehp_wp >> remain armed with events causing the kthread to get stuck: >> >> tg3 0000:0a:00.0 eth0: Link is up at 1000 Mbps, full duplex >> tg3 0000:0a:00.0 eth0: Flow control is on for TX and on for RX >> <thunderbold adapter comes loose> >> pciehp 0000:06:03.0:pcie24: Card not present on Slot(3) >> tg3 0000:0a:00.0: tg3_abort_hw timed out, TX_MODE_ENABLE will not >> clear MAC_TX_MODE=ffffffff >> tg3 0000:0a:00.0 eth0: No firmware running >> tg3 0000:0a:00.0 eth0: Link is down >> pcieport 0000:00:01.1: System wakeup enabled by ACPI >> pciehp 0000:09:00.0:pcie24: unloading service driver pciehp >> pciehp 0000:09:00.0:pcie24: Latch open on >> Slot(\xfffffff89\xffffffbbe\x02\xffffff88\xffffffff\xffffffff\xffffffe09\xffffffbbe\x02\xffffff88\xffffffff\xfffffffffbcon) >> pciehp 0000:09:00.0:pcie24: Button pressed on >> Slot(\xfffffff89\xffffffbbe\x02\xffffff88\xffffffff\xffffffff\xffffffe09\xffffffbbe\x02\xffffff88\xffffffff\xfffffffffbcon) >> pciehp 0000:09:00.0:pcie24: Card present on >> Slot(\xfffffff89\xffffffbbe\x02\xffffff88\xffffffff\xffffffff\xffffffe09\xffffffbbe\x02\xffffff88\xffffffff\xfffffffffbcon) >> pciehp 0000:09:00.0:pcie24: Power fault on slot >> \xfffffff89\xffffffbbe\x02\xffffff88\xffffffff\xffffffff\xffffffe09\xffffffbbe\x02\xffffff88\xffffffff\xfffffffffbcon >> pciehp 0000:09:00.0:pcie24: Power fault bit 0 set >> pciehp 0000:09:00.0:pcie24: PCI slot >> #\xfffffff89\xffffffbbe\x02\xffffff88\xffffffff\xffffffff\xffffffe09\xffffffbbe\x02\xffffff88\xffffffff\xfffffffffbcon >> - powering on due to button press. >> pciehp 0000:09:00.0:pcie24: Link Training Error occurs >> pciehp 0000:09:00.0:pcie24: Failed to check link status >> INFO: task kworker/0:1:52 blocked for more than 120 seconds. [...] > Hi Daniel, > It seems like an issue caused by recursive PCIe HPC. > Could you please help to try the patch from: > http://www.spinics.net/lists/linux-pci/msg18625.html > Thanks! > Gerry (adding Yijing) Splendid; this fixes this failure nicely [1], finally releasing the bus. If nothing else, I feel this should be queud for 3.8-rc3. Many thanks, Daniel --- [1] <thunderbolt ethernet adapter disengagement> pciehp 0000:06:03.0:pcie24: Card not present on Slot(3) tg3 0000:0a:00.0: tg3_abort_hw timed out, TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff tg3 0000:0a:00.0 eth0: No firmware running tg3 0000:0a:00.0 eth0: Link is down [sched_delayed] sched: RT throttling activated pcieport 0000:00:01.1: System wakeup enabled by ACPI pciehp 0000:09:00.0:pcie24: unloading service driver pciehp pciehp 0000:09:00.0:pcie24: Latch open on Slot(\xffffffb0\x04Pd\x02\xffffff88\xffffffff\xffffffff\xffffff98\x04Pd\x02\xffffff88\xffffffff\xfffffffffbcon) pciehp 0000:09:00.0:pcie24: Button pressed on Slot(\xffffffb0\x04Pd\x02\xffffff88\xffffffff\xffffffff\xffffff98\x04Pd\x02\xffffff88\xffffffff\xfffffffffbcon) pciehp 0000:09:00.0:pcie24: Card present on Slot(\xffffffb0\x04Pd\x02\xffffff88\xffffffff\xffffffff\xffffff98\x04Pd\x02\xffffff88\xffffffff\xfffffffffbcon) pciehp 0000:09:00.0:pcie24: Power fault on slot \xffffffb0\x04Pd\x02\xffffff88\xffffffff\xffffffff\xffffff98\x04Pd\x02\xffffff88\xffffffff\xfffffffffbcon pciehp 0000:09:00.0:pcie24: Power fault bit 0 set pciehp 0000:09:00.0:pcie24: PCI slot #\xffffffb0\x04Pd\x02\xffffff88\xffffffff\xffffffff\xffffff98\x04Pd\x02\xffffff88\xffffffff\xfffffffffbcon - powering on due to button press. pciehp 0000:09:00.0:pcie24: Link Training Error occurs pciehp 0000:09:00.0:pcie24: Failed to check link status pci_bus 0000:0a: busn_res: [bus 0a] is released pci_bus 0000:09: busn_res: [bus 09-0a] is released -- Daniel J Blueman -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
