* [bugzilla-daemon@bugzilla.kernel.org: [Bug 206657] New: Lenovo C940 freeze during Thunderbolt3 dock connection/disconnection unless plugged before boot]
@ 2020-02-25 0:00 Bjorn Helgaas
0 siblings, 0 replies; only message in thread
From: Bjorn Helgaas @ 2020-02-25 0:00 UTC (permalink / raw)
To: linux-pci; +Cc: Mika Westerberg, email-ext
----- Forwarded message from bugzilla-daemon@bugzilla.kernel.org -----
Date: Mon, 24 Feb 2020 20:55:05 +0000
From: bugzilla-daemon@bugzilla.kernel.org
To: bjorn@helgaas.com
Subject: [Bug 206657] New: Lenovo C940 freeze during Thunderbolt3 dock
connection/disconnection unless plugged before boot
Message-ID: <bug-206657-41252@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=206657
Bug ID: 206657
Summary: Lenovo C940 freeze during Thunderbolt3 dock
connection/disconnection unless plugged before boot
Product: Drivers
Version: 2.5
Kernel Version: 5.6-rc2
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: PCI
Assignee: drivers_pci@kernel-bugs.osdl.org
Reporter: email-ext@laposte.net
Regression: No
Created attachment 287591
--> https://bugzilla.kernel.org/attachment.cgi?id=287591&action=edit
Dmesg log when disconnecting dock
Hello,
I have a Lenovo C940 under Manjaro with unstable packages and Kernel 5.6-rc2
using a OWC Thunderbolt3 dock. If I connect the dock before boot, it will work
correctly. However, if a connect/disconnect it after boot it won't be recognize
and will lead soon after to system crash. The gnome icons start to disappear
and when using commands on terminal input/output failure errors appear.
I found another bug which seems related to mine, but in my case it leads to
system crash:
https://bugzilla.kernel.org/show_bug.cgi?id=206459.
I am encountering another problem with USB-C drive on thunderbolt3 ports
working if connected before boot and not otherwise. But without leading to
system crash:
https://bugzilla.kernel.org/show_bug.cgi?id=206649
I joined dmesg where disconnection starts at time 185 with some errors occuring
just after like:
[ 184.038519] usb usb6: USB disconnect, device number 1
[ 184.038523] usb 6-3: USB disconnect, device number 2
[ 184.167256] usb 5-4: Not enough bandwidth for altsetting 1
[ 184.167260] usb 5-4: 1:1: usb_set_interface failed (-19)
Also the journalctl shows some errors:
fév 23 17:55:06 pc-de-user kernel: usb usb6: USB disconnect, device number 1
fév 23 17:55:06 pc-de-user kernel: usb 6-3: USB disconnect, device number 2
fév 23 17:55:06 pc-de-user kernel: usb 5-4: Not enough bandwidth for altsetting
1
fév 23 17:55:06 pc-de-user kernel: usb 5-4: 1:1: usb_set_interface failed (-19)
Then the system crashes showing "input/output failures" just by using some
commands like "ls" or "cat".
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