linux-kernel - INFO: task irq/129-pciehp:116 blocked for more than 120 seconds.

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Message-ID: <899c9bad-1e3b-8458-7b1f-7fa39556c52e@molgen.mpg.de>
Date:   Tue, 5 Nov 2019 14:03:37 +0100
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>
Cc:     Christian Kellner <ck@...om.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mario Limonciello <mario.limonciello@...l.com>,
        linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: INFO: task irq/129-pciehp:116 blocked for more than 120 seconds.

Dear Linux folks,


On the Dell XPS 13 9380 with Debian Sid/unstable with Linux 5.3.7
the user reported today, that the USB input devices and the
Ethernet device of the Dell TB16 docking station did not work
at all after connecting the laptop to the docking station. The
monitor connected over DisplayPort continued working.

Cutting the power from the docking station and reconnecting it
did not help.

Linux reported messages like below.

```
[ 9511.727328] usb usb3: root hub lost power or was reset
[ 9511.727329] usb usb4: root hub lost power or was reset
[ 9511.729046] pcieport 0000:04:04.0: pciehp: Slot(4): Card not present
[ 9511.729048] pcieport 0000:3a:00.0: Refused to change power state, currently in D3
[ 9511.729059] pcieport 0000:3b:01.0: Refused to change power state, currently in D3
[ 9511.729060] pcieport 0000:3b:04.0: Refused to change power state, currently in D3
[ 9511.729078] pcieport 0000:3d:00.0: Refused to change power state, currently in D3
[ 9511.729079] pcieport 0000:3b:04.0: pciehp: Slot(4-1): Card not present
[ 9512.254595] thunderbolt 0-303: device disconnected
[ 9512.254736] thunderbolt 0-3: device disconnected
[ 9519.575474] thunderbolt 0000:05:00.0: 3: drom data crc32 mismatch (expected: 0xaf438340, got: 0xaf4383c0), continuing
[ 9519.579227] thunderbolt 0-3: new device found, vendor=0xd4 device=0xb051
[ 9519.579231] thunderbolt 0-3: Dell Dell Thunderbolt Cable
[ 9520.048166] thunderbolt 0-303: new device found, vendor=0xd4 device=0xb054
[ 9520.048168] thunderbolt 0-303: Dell Dell Thunderbolt Dock
[ 9667.560748] INFO: task irq/129-pciehp:116 blocked for more than 120 seconds.
[ 9667.560761]       Not tainted 5.3.0-1-amd64 #1 Debian 5.3.7-1
[ 9667.560765] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 9667.560771] irq/129-pciehp  D    0   116      2 0x80004000
[ 9667.560779] Call Trace:
[ 9667.560803]  ? __schedule+0x2b9/0x6c0
[ 9667.560816]  ? __wake_up_common+0x80/0x180
[ 9667.560824]  schedule+0x39/0xa0
[ 9667.560833]  schedule_timeout+0x20f/0x300
[ 9667.560843]  ? ida_free+0xa8/0x130
[ 9667.560851]  wait_for_completion+0x119/0x160
[ 9667.560860]  ? wake_up_q+0x60/0x60
[ 9667.560871]  kthread_stop+0x4d/0x110
[ 9667.560881]  __free_irq+0x11f/0x300
[ 9667.560889]  ? irq_finalize_oneshot.part.0+0x100/0x100
[ 9667.560894]  free_irq+0x3a/0x70
[ 9667.560905]  pcie_shutdown_notification+0x2b/0x40
[ 9667.560911]  pciehp_remove+0x23/0x50
[ 9667.560921]  pcie_port_remove_service+0x2f/0x40
[ 9667.560933]  device_release_driver_internal+0xd8/0x1b0
[ 9667.560942]  bus_remove_device+0xdb/0x140
[ 9667.560949]  device_del+0x163/0x360
[ 9667.560957]  ? irq_finalize_oneshot.part.0+0x100/0x100
[ 9667.560963]  device_unregister+0x16/0x60
[ 9667.560971]  ? pcie_port_find_device+0x60/0x60
[ 9667.560977]  remove_iter+0x17/0x20
[ 9667.560983]  device_for_each_child+0x58/0x90
[ 9667.560992]  pcie_port_device_remove+0x1e/0x30
[ 9667.561002]  pci_device_remove+0x3b/0xa0
[ 9667.561012]  device_release_driver_internal+0xd8/0x1b0
[ 9667.561021]  pci_stop_bus_device+0x68/0x90
[ 9667.561028]  pci_stop_bus_device+0x2c/0x90
[ 9667.561036]  pci_stop_and_remove_bus_device+0xe/0x20
[ 9667.561044]  pciehp_unconfigure_device+0x7c/0x12f
[ 9667.561052]  pciehp_disable_slot+0x6b/0xf0
[ 9667.561060]  pciehp_handle_presence_or_link_change+0xdc/0x140
[ 9667.561067]  pciehp_ist+0x10f/0x120
[ 9667.561074]  irq_thread_fn+0x20/0x60
[ 9667.561081]  irq_thread+0xdc/0x170
[ 9667.561087]  ? irq_forced_thread_fn+0x80/0x80
[ 9667.561097]  kthread+0xf9/0x130
[ 9667.561104]  ? irq_thread_check_affinity+0xd0/0xd0
[ 9667.561111]  ? kthread_park+0x80/0x80
[ 9667.561121]  ret_from_fork+0x1f/0x40
```

Please find the Linux messages attached.

Shutting down the system, it did not power off but just hung at the
last message, and had to be powered off by pressing the power button
for 12 seconds.

This is the first time this happened, and I was *not* able to
reproduce it after shutting down the laptop and rebooting the docking
station by disconnecting the power.


Kind regards,

Paul

View attachment "20191105--dmesg.txt" of type "text/plain" (101963 bytes)

Download attachment "smime.p7s" of type "application/pkcs7-signature" (5174 bytes)