From: bugzilla-daemon@kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 216766] USB enumeration lockup
Date: Mon, 05 Dec 2022 16:06:21 +0000 [thread overview]
Message-ID: <bug-216766-208809-oOsQ04wpC6@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-216766-208809@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=216766
--- Comment #6 from Mathias Nyman (mathias.nyman@linux.intel.com) ---
But reading usbfs shouldn't block forever either, so there's something else
wrong as well.
Maybe we fails to give back an URB, or retry reading all the disconnected
devices forever.
Adding xhci and usb core dynamic debug could show more info about this.
before suspeding could you as root add:
mount -t debugfs none /sys/kernel/debug
echo 'module xhci_hcd =p' >/sys/kernel/debug/dynamic_debug/control
echo 'module usbcore =p' >/sys/kernel/debug/dynamic_debug/control
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next prev parent reply other threads:[~2022-12-05 16:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-02 18:54 [Bug 216766] New: USB enumeration lockup bugzilla-daemon
2022-12-02 20:27 ` [Bug 216766] " bugzilla-daemon
2022-12-02 21:09 ` bugzilla-daemon
2022-12-03 2:51 ` bugzilla-daemon
2022-12-03 14:32 ` bugzilla-daemon
2022-12-05 15:58 ` bugzilla-daemon
2022-12-05 16:06 ` bugzilla-daemon [this message]
2022-12-05 18:32 ` bugzilla-daemon
2022-12-05 18:33 ` bugzilla-daemon
2022-12-05 18:34 ` bugzilla-daemon
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