From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 212751] acm_port_activate - usb_submit_urb(ctrl irq) failed after kernel update
Date: Fri, 23 Apr 2021 08:31:52 +0000 [thread overview]
Message-ID: <bug-212751-208809-p76zBXG9im@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-212751-208809@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=212751
--- Comment #1 from Johan Hovold (johan@kernel.org) ---
On Thu, Apr 22, 2021 at 04:32:51PM +0000, bugzilla-daemon@bugzilla.kernel.org
wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=212751
>
> Bug ID: 212751
> Summary: acm_port_activate - usb_submit_urb(ctrl irq) failed
> after kernel update
> Product: Drivers
> Version: 2.5
> Kernel Version: 5.10.30
> Hardware: All
> OS: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: USB
> Assignee: drivers_usb@kernel-bugs.kernel.org
> Reporter: johann.wilhelm@wilhelm.consulting
> Regression: No
>
> Something between 5.10.26 and 5.20.30 broke (at least) the USB CDC
> implementation by ST Microsystems on their STM32 devices.
>
> On opending of the device following error occurs:
> [ 1333.790160] cdc_acm 1-10:1.0: acm_port_activate - usb_submit_urb(ctrl irq)
> failed
>
>
> 5.10.26 works - 5.10.30 does not.
This is likely due to commit 6069e3e927c8 ("USB: cdc-acm: untangle a
circular dependency between callback and softint") which had a bug that
was just fixed by commit a8b3b519618f ("USB: CDC-ACM: fix
poison/unpoison imbalance").
You can try applying the latter yourself but it will otherwise show up
in stable soon.
Johan
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next prev parent reply other threads:[~2021-04-23 8:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 16:32 [Bug 212751] New: acm_port_activate - usb_submit_urb(ctrl irq) failed after kernel update bugzilla-daemon
2021-04-23 8:31 ` bugzilla-daemon [this message]
2021-04-23 8:31 ` Johan Hovold
2021-05-27 12:54 ` [Bug 212751] " bugzilla-daemon
2021-06-10 11:09 ` bugzilla-daemon
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