* [bugzilla-daemon@bugzilla.kernel.org: [Bug 198181] New: BUG at drivers/pci/msi.c:352 when unplugging a sysfs authorized thunderbolt 3 dock]
@ 2017-12-18 2:23 Bjorn Helgaas
0 siblings, 0 replies; only message in thread
From: Bjorn Helgaas @ 2017-12-18 2:23 UTC (permalink / raw)
To: Andreas Noever, Michael Jamet, Mika Westerberg, Yehezkel Bernat
Cc: linux-pci, linux-kernel
----- Forwarded message from bugzilla-daemon@bugzilla.kernel.org -----
Date: Sun, 17 Dec 2017 15:04:51 +0000
From: bugzilla-daemon@bugzilla.kernel.org
To: bugzilla.pci@gmail.com
Subject: [Bug 198181] New: BUG at drivers/pci/msi.c:352 when unplugging a sysfs
authorized thunderbolt 3 dock
https://bugzilla.kernel.org/show_bug.cgi?id=198181
Bug ID: 198181
Summary: BUG at drivers/pci/msi.c:352 when unplugging a sysfs
authorized thunderbolt 3 dock
Product: Drivers
Version: 2.5
Kernel Version: 4.14.4
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: PCI
Assignee: drivers_pci@kernel-bugs.osdl.org
Reporter: nheart@gmail.com
CC: bhelgaas@google.com
Regression: No
Created attachment 261219
--> https://bugzilla.kernel.org/attachment.cgi?id=261219&action=edit
dmesg output
Hey,
I have a CalDigit TS3 Lite Thunderbolt 3 Dock that I use with a Dell Alienware
13.
When plugged in, the dock works fine, except no USB devices are recognized.
After some googling I found that I need to authorize it access to the dock via
sysfs https://lkml.org/lkml/2017/5/18/848
After I run echo 1 > /sys/bus/thunderbolt/devices/0-1/authorized
I can take full use of the dock, however if I unplug it, I face a kernel bug
at:
drivers/pci/msi.c:352 (dmesg attached).
This is the free_msi_irqs function, but I don't understand the code. Any
explanation/help suggestions?
Cheers,
Nick
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