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From: Johan Hovold <johan@kernel.org>
To: "Niccolò Belli" <darkbasic@linuxsystems.it>
Cc: linux-usb@vger.kernel.org
Subject: Re: cdc_acm 2-2:1.0: acm_port_activate - usb_submit_urb(ctrl irq) failed
Date: Tue, 27 Apr 2021 09:10:48 +0200	[thread overview]
Message-ID: <YIe4+PSWak6BFpUq@hovoldconsulting.com> (raw)
In-Reply-To: <2fd1819252485b07e38f5154592dad43@linuxsystems.it>

On Mon, Apr 26, 2021 at 09:55:06PM +0200, Niccolò Belli wrote:
> My Aeon Labs ZWave USB stick doesn't work anymore since 5.11.12-arch1-1:
> [ 193.677337] usb 2-2: new full-speed USB device number 5 using xhci_hcd
> [ 193.818112] usb 2-2: New USB device found, idVendor=0658, 
> idProduct=0200, bcdDevice= 0.00
> [ 193.818117] usb 2-2: New USB device strings: Mfr=0, Product=0, 
> SerialNumber=0
> [ 194.372999] cdc_acm 2-2:1.0: ttyACM0: USB ACM device
> [ 194.373197] usbcore: registered new interface driver cdc_acm
> [ 194.373199] cdc_acm: USB Abstract Control Model driver for USB modems 
> and ISDN adapters
> [ 200.173616] cdc_acm 2-2:1.0: acm_port_activate - usb_submit_urb(ctrl 
> irq) failed
> 
> It works fine on 5.11.11-arch1-1 and on a Fedora 34 Live USB with kernel 
> 5.11.16.
> Arch's 5.11.16 doesn't work and latest Arch's linux-lts doesn't work 
> either.

I'm afraid this is a known regression due to a buggy stable backport.
The fix is now in Linus's tree:

	 a8b3b519618f ("USB: CDC-ACM: fix poison/unpoison imbalance")

and should be backported very soon.

Johan

  reply	other threads:[~2021-04-27  7:10 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-26 19:55 cdc_acm 2-2:1.0: acm_port_activate - usb_submit_urb(ctrl irq) failed Niccolò Belli
2021-04-27  7:10 ` Johan Hovold [this message]
2021-04-27  7:21   ` Greg KH

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