[Bug 199631] New: WARNING: at drivers/thunderbolt/switch.c:587 tb_switch_add+0x63e/0x730 [thunderbolt]

From: bugzilla-daemon
Date: Mon May 07 2018 - 10:14:25 EST


https://bugzilla.kernel.org/show_bug.cgi?id=199631

Bug ID: 199631
Summary: WARNING: at drivers/thunderbolt/switch.c:587
tb_switch_add+0x63e/0x730 [thunderbolt]
Product: Drivers
Version: 2.5
Kernel Version: 4.17.0-0.rc3.git4.1.fc29.x86_64
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: PCI
Assignee: drivers_pci@xxxxxxxxxxxxxxxxxxxx
Reporter: bugzilla@xxxxxxxxxxxxxxxxx
Regression: No

Soon after boot, I'm getting a warning and a call trace

[ 36.051674] thunderbolt 0000:03:00.0: timeout reading config space 1 from
0x36
[ 36.051757] ------------[ cut here ]------------
[ 36.051769] thunderbolt 0000:03:00.0: 0:1: non switch port without a PHY
[ 36.051881] WARNING: CPU: 3 PID: 1511 at drivers/thunderbolt/switch.c:587
tb_switch_add+0x63e/0x730 [thunderbolt]


Does not happen with 4.16.6.

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