linux-kernel - Re: [bugzilla-daemon@...nel.org: [Bug 218360] New: Disk drive of TBT3/USB4 storage device can’t show up if connecting behind TBT3 dock or some USB4 docks DFP TBT port]

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Date: Thu, 11 Jan 2024 10:20:43 +0530
From: Sanath S <sanaths2@....com>
To: Bjorn Helgaas <helgaas@...nel.org>,
 Alex Williamson <alex.williamson@...hat.com>,
 Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc: Sanath S <Sanath.S@....com>, shyam-sundar.s-k@....com,
 Andreas Noever <andreas.noever@...il.com>,
 Michael Jamet <michael.jamet@...el.com>,
 Yehezkel Bernat <YehezkelShB@...il.com>, linux-usb@...r.kernel.org,
 linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [bugzilla-daemon@...nel.org: [Bug 218360] New: Disk drive of TBT3/USB4 storage device can’t show up if connecting behind TBT3 dock or some USB4 docks DFP TBT port]


On 1/11/2024 8:02 AM, Sanath S wrote:
>
> On 1/11/2024 12:30 AM, Bjorn Helgaas wrote:
>> #regzbot introduced: d3fcd7360338 ("PCI: Fix runtime PM race with PME 
>> polling")
>>
>> Sanath, thank you very much for this report and the bisection!
>>
>> I assume this happens on hot-adds, i.e., you boot the kernel, then
>> connect a USB4 dock, then connect the TBT3/USB4 storage device to the
>> dock?
> Yes, correct.
>> Would you be able to attach the complete dmesgs log from working and
>> failing kernels?  The ideal would be from d3fcd7360338 ("PCI: Fix
>> runtime PM race with PME polling"), which fails, and 5cd903bce9dd
>> ("PCI/VPD: Add runtime power management to sysfs interface"), which
>> presumably works.  But v6.7 and v6.5 is OK too.
> Sure. I'll get that.
> Do you want any debug to be enabled ?
Attached required logs and outputs on bugzilla
https://bugzilla.kernel.org/show_bug.cgi?id=218360
>> Also the output of "sudo lspci -vv", which I assume doesn't depend on
>> which kernel you're running.
>>
>> Bjorn
>>
>> ----- Forwarded message from bugzilla-daemon@...nel.org -----
>>
>> Date: Wed, 10 Jan 2024 10:52:40 +0000
>> From: bugzilla-daemon@...nel.org
>> To: bjorn@...gaas.com
>> Subject: [Bug 218360] New: Disk drive of TBT3/USB4 storage device 
>> can’t show up if connecting behind TBT3 dock
>>     or some USB4 docks DFP TBT port
>> Message-ID: <bug-218360-41252@...ps.bugzilla.kernel.org/>
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=218360
>>
>>              Bug ID: 218360
>>             Summary: Disk drive of TBT3/USB4 storage device can’t 
>> show up
>>                      if connecting behind TBT3 dock or some USB4 
>> docks DFP
>>                      TBT port
>>            Reporter: Sanath.S@....com
>>
>> The disk drive of the TBT3/USB4 storage device can’t show up behind 
>> TBT3 dock
>> and some USB4 docks have a DFP TBT port.
>>
>> TBT3/USB4 storage device can be authorized, the disk drive doesn’t 
>> show up.
>>
>> Issue reproduce sequence: Connect USB4 dock to host → Connect 
>> TBT3/USB4 storage
>> device to dock DFP TBT3 port → TBT3/USB4 storage device disk driver 
>> can’t show
>> up.
>>
>> The issue was observed in the latest mainline kernel 6.7.
>>
>>
>> Failing on all the below combination
>>
>> HP Thunderbolt Dock 120W G2 HSN-IX01
>> HP Hook 2.0 USB4/TBT4 Dock (PV Phase)
>> CalDigit TS3Plus+ Thunderbolt Station 3 Plus
>> Dell Thunderbolt Dock – WD19TB