Re: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support

Lukas Wunner
2019-08-20T11:34:07Z

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