From: "Michał Pecio" <michal.pecio@gmail.com>
To: torvalds@linux-foundation.org
Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
mathias.nyman@intel.com
Subject: Re: USB: workqueues stuck in 'D' state?
Date: Sun, 8 Dec 2024 21:17:12 +0100 [thread overview]
Message-ID: <20241208211712.7d475295@foxbook> (raw)
In-Reply-To: <CAHk-=wgBm_x2EfaSHvSL3otbcDbw06XW2j9EFNMK2_8XoMHYqA@mail.gmail.com>
Hi,
> > Are you using any USB devices on this thing, or is that just for
> > internal connections?
>
> All internal motherboard devices. Mostly the usual random hubs, but
> also some "ASRR USB Ethernet" and a "Multifunction Composite Gadget".
Dynamic debug has been suggested, it would tell which ports are being
suspended and how often. Either usbcore and/or this should do:
func xhci_set_link_state +p
Stacktrace looks like this function has just returned and the driver
is waiting for the HW to confirm new link state. (Which confirmation,
or lack thereof, seems to be subsequently ignored by the way.)
Regards,
Michal
next prev parent reply other threads:[~2024-12-08 20:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-06 23:07 USB: workqueues stuck in 'D' state? Linus Torvalds
2024-12-07 2:02 ` Alan Stern
2024-12-08 15:51 ` Greg Kroah-Hartman
2024-12-08 19:14 ` Linus Torvalds
2024-12-08 20:17 ` Michał Pecio [this message]
2024-12-09 23:27 ` Michał Pecio
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