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From: <Mario.Limonciello@dell.com>
To: <lukas@wunner.de>
Cc: <mika.westerberg@linux.intel.com>, <linux-kernel@vger.kernel.org>,
	<andreas.noever@gmail.com>, <michael.jamet@intel.com>,
	<YehezkelShB@gmail.com>, <rjw@rjwysocki.net>, <lenb@kernel.org>,
	<anthony.wong@canonical.com>, <rajmohan.mani@intel.com>,
	<raanan.avargil@intel.com>, <David.Laight@ACULAB.COM>,
	<linux-acpi@vger.kernel.org>
Subject: RE: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support
Date: Tue, 20 Aug 2019 17:00:11 +0000
Message-ID: <b5db55608d944b95a58cdfc7ccb60b69@AUSX13MPC101.AMER.DELL.COM> (raw)
In-Reply-To: <20190820113404.pm6qvqakdkcwdpat@wunner.de>

> -----Original Message-----
> From: Lukas Wunner <lukas@wunner.de>
> Sent: Tuesday, August 20, 2019 6:34 AM
> To: Limonciello, Mario
> Cc: mika.westerberg@linux.intel.com; linux-kernel@vger.kernel.org;
> andreas.noever@gmail.com; michael.jamet@intel.com;
> YehezkelShB@gmail.com; rjw@rjwysocki.net; lenb@kernel.org;
> anthony.wong@canonical.com; rajmohan.mani@intel.com;
> raanan.avargil@intel.com; David.Laight@ACULAB.COM; linux-
> acpi@vger.kernel.org
> Subject: Re: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support
> 
> 
> [EXTERNAL EMAIL]
> 
> On Mon, Aug 19, 2019 at 04:29:35PM +0000, Mario.Limonciello@dell.com wrote:
> > I've run into a problem when using
> > a WD19TB that after unplugging it will cause the following to spew in dmesg:
> >
> > [ 2198.017003] ============================================
> > [ 2198.017005] WARNING: possible recursive locking detected
> > [ 2198.017008] 5.3.0-rc5+ #75 Not tainted
> > [ 2198.017009] --------------------------------------------
> > [ 2198.017012] irq/122-pciehp/121 is trying to acquire lock:
> > [ 2198.017015] 00000000801d4de8 (&ctrl->reset_lock){.+.+}, at:
> pciehp_check_presence+0x1b/0x80
> > [ 2198.017026]
> >                but task is already holding lock:
> > [ 2198.017028] 000000000899e2eb (&ctrl->reset_lock){.+.+}, at:
> pciehp_ist+0xaf/0x1c0
> 
> This was first reported by Theodore in April and appears to be a
> false positive:
> 
> https://lore.kernel.org/linux-
> pci/20190402083257.kyqmirq4ovzscxsv@wunner.de/
> 
> Thanks,
> 
> Lukas

Indeed it does actually seem harmless and only comes up once.

I've filed https://bugzilla.kernel.org/show_bug.cgi?id=204639 to track down further
what's going on.

  reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-19 11:22 Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 1/8] thunderbolt: Correct path indices for PCIe tunnel Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 2/8] thunderbolt: Move NVM upgrade support flag to struct icm Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 3/8] thunderbolt: Use 32-bit writes when writing ring producer/consumer Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 4/8] thunderbolt: Do not fail adding switch if some port is not implemented Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 5/8] thunderbolt: Hide switch attributes that are not set Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 6/8] thunderbolt: Expose active parts of NVM even if upgrade is not supported Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 7/8] thunderbolt: Add support for Intel Ice Lake Mika Westerberg
2019-08-19 11:22 ` [PATCH v3 8/8] ACPI / property: Add two new Thunderbolt property GUIDs to the list Mika Westerberg
2019-08-19 16:29 ` [PATCH v3 0/8] thunderbolt: Intel Ice Lake support Mario.Limonciello
2019-08-19 17:57   ` Mika Westerberg
2019-08-19 18:22     ` Mario.Limonciello
2019-08-19 19:36       ` Mario.Limonciello
2019-08-20 10:01         ` Mika Westerberg
2019-08-20 11:34   ` Lukas Wunner
2019-08-20 17:00     ` Mario.Limonciello [this message]
2019-08-26  9:20 ` Mika Westerberg

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