> -----Original Message----- > From: Lukas Wunner <[email protected]> > Sent: Tuesday, August 20, 2019 6:34 AM > To: Limonciello, Mario > Cc: [email protected]; [email protected]; > [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; > [email protected]; [email protected]; linux- > [email protected] > Subject: Re: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support > > > [EXTERNAL EMAIL] > > On Mon, Aug 19, 2019 at 04:29:35PM +0000, [email protected] 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/[email protected]/ > > 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.
