> -----Original Message-----
> From: Lukas Wunner <lu...@wunner.de>
> Sent: Tuesday, August 20, 2019 6:34 AM
> To: Limonciello, Mario
> Cc: mika.westerb...@linux.intel.com; linux-kernel@vger.kernel.org;
> andreas.noe...@gmail.com; michael.ja...@intel.com;
> yehezkel...@gmail.com; r...@rjwysocki.net; l...@kernel.org;
> anthony.w...@canonical.com; rajmohan.m...@intel.com;
> raanan.avar...@intel.com; david.lai...@aculab.com; linux-
> a...@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.limoncie...@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.kyqmirq4ovzsc...@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.
