Re: [bugzilla-daemon@xxxxxxxxxx: [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]

[Sanath S]

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@xxxxxxxxxx -----
> >
> > Date: Wed, 10 Jan 2024 10:52:40 +0000
> > From: bugzilla-daemon@xxxxxxxxxx
> > To: bjorn@xxxxxxxxxxx
> > 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@xxxxxxxxxxxxxxxxxxxxxxxxx/>
> >
> > 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@xxxxxxx
> >
> > 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