From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 212955] Possible kernel regression USB2 (not USB3) port EDIROL UA-101 (in USB 1.1 mode, not USB2) error -110
Date: Fri, 07 May 2021 15:07:38 +0000 [thread overview]
Message-ID: <bug-212955-208809-ak2MUSTCsw@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-212955-208809@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=212955
--- Comment #9 from Alan Stern (stern@rowland.harvard.edu) ---
Interesting. I don't see any particular differences as far as the USB core is
concerned, but there are major differences in the way the device gets used.
You can even see it in the dmesg output:
[ 963.375444] usb 4-1.5: 0:1: add audio endpoint 0x2
[ 963.376273] usb 4-1.5: 1:1: add audio endpoint 0x81
Those lines are present in 5.9 but not in 5.12, and they occur before the
problem happens. These messages may not be directly relevant to the problem at
hand, but they do point to changes in the audio drivers. Those changes may
expose a bug somewhere else.
Judging from these results, I will guess that your bisection tests will
pinpoint a commit that affects the snd-ua101 audio driver.
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next prev parent reply other threads:[~2021-05-07 15:07 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-05 19:34 [Bug 212955] New: Possible kernel regression USB2 (not USB3) port EDIROL UA-101 (in USB 1.1 mode, not USB2) error -110 bugzilla-daemon
2021-05-05 20:20 ` [Bug 212955] " bugzilla-daemon
2021-05-06 5:12 ` bugzilla-daemon
2021-05-06 5:14 ` bugzilla-daemon
2021-05-06 5:17 ` bugzilla-daemon
2021-05-06 5:17 ` bugzilla-daemon
2021-05-06 15:45 ` bugzilla-daemon
2021-05-07 2:12 ` bugzilla-daemon
2021-05-07 2:21 ` bugzilla-daemon
2021-05-07 15:07 ` bugzilla-daemon [this message]
2021-05-08 3:10 ` bugzilla-daemon
2021-06-02 4:07 ` bugzilla-daemon
2021-06-02 4:25 ` bugzilla-daemon
2021-06-02 16:15 ` bugzilla-daemon
2021-06-02 18:15 ` bugzilla-daemon
2021-06-02 19:51 ` bugzilla-daemon
2021-06-02 19:54 ` bugzilla-daemon
2021-06-02 20:00 ` bugzilla-daemon
2021-06-03 4:42 ` bugzilla-daemon
2021-06-05 3:36 ` bugzilla-daemon
2021-06-07 3:47 ` bugzilla-daemon
2021-06-07 4:39 ` bugzilla-daemon
2021-06-07 15:16 ` bugzilla-daemon
2021-06-07 19:06 ` bugzilla-daemon
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