From: Michal Pecio <michal.pecio@gmail.com>
To: Jeffrey Hein <jp@jphein.com>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>,
Ricardo Ribalda <ribalda@chromium.org>,
Alan Stern <stern@rowland.harvard.edu>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Hans de Goede <hansg@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-media@vger.kernel.org, linux-usb@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH v5 2/3] media: uvcvideo: add UVC_QUIRK_CTRL_THROTTLE for fragile firmware
Date: Mon, 13 Apr 2026 22:24:32 +0200 [thread overview]
Message-ID: <20260413222432.3f15151c.michal.pecio@gmail.com> (raw)
In-Reply-To: <CAD5VvzCEV_XbHc_Gby7mFPBSgSebqKDKJf3VC8HNRrD+xWaTJg@mail.gmail.com>
On Fri, 10 Apr 2026 16:06:43 -0700, Jeffrey Hein wrote:
> Test 2: Michal's xhci patch ONLY (clean isolation)
> ====================================================
> Active: ONLY Michal's xhci patch. No usbcore.quirks cmdline, stock
> uvcvideo (DKMS module disabled), LPM and autosuspend at defaults.
>
> Result: HC survived.
>
> Video call ran successfully.
Something weird when video was being disabled:
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Spurious event dma 0x0000000272e42200, comp_code 13 after 13
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Spurious event dma 0x0000000272e42230, comp_code 13 after 13
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Cancel URB 0000000052d839d8, dev 3.1, ep 0x81, starting at offset 0x272e42f00
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: // Ding dong!
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Stopped on Transfer TRB for slot 36 ep 2
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Removing canceled TD starting at 0x272e42f00 (dma) in stream 0 URB 0000000052d839d8
[...]
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: xhci_giveback_invalidated_tds: Giveback cancelled URB 0000000052d839d8 TD
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Cancel URB 00000000d8d84b58, dev 3.1, ep 0x81, starting at offset 0x260549210
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: // Ding dong!
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Transfer error for slot 36 ep 2 on endpoint
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 198 for slot 36 ep 2 , HC probably busted
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: Stopped on Transfer TRB for slot 36 ep 2
[...]
[Fri Apr 10 15:44:31 2026] xhci_hcd 0000:00:14.0: drop ep 0x81, slot id 36, new drop flags = 0x8, new add flags = 0x0
Video started again, seemed to work for a while:
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: add ep 0x81, slot id 36, new drop flags = 0x0, new add flags = 0x8
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: xhci_check_bandwidth called for udev 00000000e40f0c43
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: // Ding dong!
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: Successful Endpoint Configure command
[Fri Apr 10 15:44:47 2026] usb 2-3.1: Hub-initiated U1 disabled due to long timeout 16800us
[Fri Apr 10 15:44:47 2026] usb 2-3.1: Hub-initiated U1 disabled due to long timeout 132us
[Fri Apr 10 15:44:47 2026] usb 2-3.1: Hub-initiated U1 disabled due to long timeout 1050us
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: Set up evaluate context for LPM MEL change.
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: // Ding dong!
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: Successful evaluate context command
[Fri Apr 10 15:44:47 2026] usb 2-3.1: Disable U2, ESIT shorter than exit latency
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: Spurious event dma 0x0000000260549020, comp_code 13 after 13
[Fri Apr 10 15:44:47 2026] xhci_hcd 0000:00:14.0: Spurious event dma 0x0000000260549050, comp_code 13 after 13
Until it broke, not sure what caused this. No EP5IN unlinks here.
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: Spurious event dma 0x0000000272e42690, comp_code 13 after 13
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: Spurious event dma 0x0000000272e426d0, comp_code 13 after 13
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: No Ping response error for slot 36 ep 2, Skip one Isoc TD
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: No Ping response error for slot 36 ep 2, Skip one Isoc TD
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: No Ping response error for slot 36 ep 2, Skip one Isoc TD
Then EP5IN also fails and is soft-retried, but it doesn't help.
Control requests get EPROTO or ETIMEDOUT as usual.
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: Transfer error for slot 36 ep 10 on endpoint
[Fri Apr 10 15:45:09 2026] xhci_hcd 0000:00:14.0: Soft-reset ep 10, slot 36
Looks like the device is dead indeed, or the HC broke down and
can't communiate with it.
next prev parent reply other threads:[~2026-04-13 20:24 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-31 0:38 [PATCH v5 0/3] USB/UVC: Add quirks to prevent Razer Kiyo Pro xHCI cascade failure JP Hein
2026-03-31 0:38 ` [PATCH v5 1/3] USB: core: add NO_LPM quirk for Razer Kiyo Pro webcam JP Hein
2026-03-31 0:38 ` [PATCH v5 2/3] media: uvcvideo: add UVC_QUIRK_CTRL_THROTTLE for fragile firmware JP Hein
2026-04-09 6:45 ` Ricardo Ribalda
[not found] ` <CAD5VvzAu8+Qz7hEEBzuKvO11X=YD-wrtX3_Tk77g2Cq5rZZD0Q@mail.gmail.com>
2026-04-09 7:51 ` Jeffrey Hein
2026-04-09 8:02 ` Michal Pecio
2026-04-09 8:15 ` Jeffrey Hein
2026-04-09 20:17 ` Michal Pecio
2026-04-10 0:01 ` Jeffrey Hein
2026-04-10 0:24 ` Jeffrey Hein
2026-04-10 4:47 ` Michal Pecio
2026-04-10 21:48 ` Mathias Nyman
2026-04-10 23:06 ` Jeffrey Hein
2026-04-13 8:05 ` Michal Pecio
2026-04-13 20:24 ` Michal Pecio [this message]
2026-04-11 13:39 ` Michal Pecio
2026-03-31 0:38 ` [PATCH v5 3/3] media: uvcvideo: add quirks for Razer Kiyo Pro webcam JP Hein
2026-04-09 6:49 ` Ricardo Ribalda
2026-04-09 7:38 ` Jeffrey Hein
2026-04-09 7:42 ` [PATCH v6 0/2] media: uvcvideo: Add quirks to prevent Razer Kiyo Pro xHCI cascade failure JP Hein
2026-04-09 7:42 ` [PATCH v6 1/2] media: uvcvideo: add UVC_QUIRK_CTRL_THROTTLE for fragile USB firmware JP Hein
2026-04-09 7:57 ` Ricardo Ribalda
2026-04-09 8:12 ` Jeffrey Hein
2026-04-09 7:42 ` [PATCH v6 2/2] media: uvcvideo: add Razer Kiyo Pro to device info table JP Hein
2026-04-09 7:57 ` Ricardo Ribalda
2026-04-09 8:13 ` Jeffrey Hein
2026-04-10 0:28 ` [PATCH v7 0/2] media: uvcvideo: Add quirks to prevent Razer Kiyo Pro xHCI cascade failure JP Hein
2026-04-10 0:28 ` [PATCH v7 1/2] media: uvcvideo: add UVC_QUIRK_CTRL_THROTTLE for fragile USB firmware JP Hein
2026-04-10 0:28 ` [PATCH v7 2/2] media: uvcvideo: add Razer Kiyo Pro to device info table JP Hein
2026-04-13 20:40 ` [PATCH v7 0/2] media: uvcvideo: Add quirks to prevent Razer Kiyo Pro xHCI cascade failure Michal Pecio
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