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From: Bjorn Helgaas <bhelgaas@google.com>
To: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Takashi Iwai <tiwai@suse.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Lukas Wunner <lukas@wunner.de>, Jiri Slaby <jslaby@suse.cz>,
	Michael Hirmke <opensuse@mike.franken.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux PCI <linux-pci@vger.kernel.org>
Subject: Re: [REGRESSION 5.0.8] Dell thunderbolt dock broken (xhci_hcd and thunderbolt)
Date: Mon, 29 Apr 2019 15:09:43 -0500	[thread overview]
Message-ID: <CAErSpo4awEXF3evh7=ZGi39y1dpMx9bdhXw8zt7s+1sDaH6nng@mail.gmail.com> (raw)
In-Reply-To: <20190429195459.GU2583@lahna.fi.intel.com>

[+cc linux-pci]

On Mon, Apr 29, 2019 at 2:55 PM Mika Westerberg
<mika.westerberg@linux.intel.com> wrote:
>
> On Mon, Apr 29, 2019 at 09:47:15PM +0200, Takashi Iwai wrote:
> > Hi,
>
> Hi,
>
> > we've got a regression report wrt xhci_hcd and thunderbolt on a Dell
> > machine.  5.0.7 is confirmed to work, so it must be a regression
> > introduced by 5.0.8.
> >
> > The details are found in openSUSE Bugzilla entry:
> >   https://bugzilla.opensuse.org/show_bug.cgi?id=1132943
> >
> > The probe of xhci_hcd on the dock fails like:
> > [    6.269062] pcieport 0000:3a:00.0: enabling device (0006 -> 0007)
> > [    6.270027] pcieport 0000:3b:03.0: enabling device (0006 -> 0007)
> > [    6.270758] xhci_hcd 0000:3c:00.0: init 0000:3c:00.0 fail, -16
> > [    6.270764] xhci_hcd: probe of 0000:3c:00.0 failed with error -16
> > [    6.271002] xhci_hcd 0000:3d:00.0: init 0000:3d:00.0 fail, -16
> >
> > and later on, thunderbolt gives warnings:
> > [   30.232676] thunderbolt 0000:05:00.0: unexpected hop count: 1023
> > [   30.232957] ------------[ cut here ]------------
> > [   30.232958] thunderbolt 0000:05:00.0: interrupt for TX ring 0 is already enabled
> > [   30.232974] WARNING: CPU: 3 PID: 1009 at drivers/thunderbolt/nhi.c:107 ring_interrupt_active+0x1ea/0x230 [thunderbolt]
> >
> >
> > I blindly suspected the commit 3943af9d01e9 and asked for a reverted
> > kernel, but in vain.  And now it was confirmed that the problem is
> > present with the latest 5.1-rc, too.
> >
> > I put some people who might have interest and the reporter (Michael)
> > to Cc.  If anyone has an idea, feel free to join to the Bugzilla, or
> > let me know if any help needed from the distro side.
>
> Since it exists in 5.1-rcX also it would be good if someone
> who see the problem (Michael?) could bisect it.

      parent reply	other threads:[~2019-04-29 20:09 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-29 19:47 [REGRESSION 5.0.8] Dell thunderbolt dock broken (xhci_hcd and thunderbolt) Takashi Iwai
2019-04-29 19:54 ` Mika Westerberg
2019-04-29 20:03   ` Michael Hirmke
2019-04-29 20:13     ` Mika Westerberg
2019-04-29 20:36       ` Mika Westerberg
2019-04-29 22:07         ` Takashi Iwai
2019-04-30  8:39           ` Michael Hirmke
2019-04-30  9:00             ` Mika Westerberg
2019-04-30  9:37               ` Rafael J. Wysocki
2019-05-02 11:48                 ` Greg Kroah-Hartman
2019-05-03 23:35                   ` Furquan Shaikh
2019-05-06  6:45                     ` Mika Westerberg
2019-05-09 11:52                       ` Furquan Shaikh
2019-04-29 20:09   ` Bjorn Helgaas [this message]

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