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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 214789] ehci-hcd.c ISR
Date: Thu, 21 Oct 2021 19:46:20 +0000	[thread overview]
Message-ID: <bug-214789-208809-Ijq3oU6fFr@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-214789-208809@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=214789

--- Comment #8 from Alan Stern (stern@rowland.harvard.edu) ---
How many of those 90 interrupts were issued by the EHCI host controller as
opposed to the card?

Are there any USB devices attached to the host controller?  What does
/sys/kernel/debug/usb/devices have to say?

Does the card use edge-triggered interrupts rather than level-triggered?

Have you tried adding any debugging messages to ehci_irq to find out what's
going on when it runs?

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  parent reply	other threads:[~2021-10-21 19:46 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-21  4:29 [Bug 214789] New: ehci-hcd.c ISR bugzilla-daemon
2021-10-21  5:56 ` Greg KH
2021-10-21  5:56 ` [Bug 214789] " bugzilla-daemon
2021-10-21 15:42 ` bugzilla-daemon
2021-10-21 16:02 ` bugzilla-daemon
2021-10-21 16:13 ` bugzilla-daemon
2021-10-21 19:27 ` bugzilla-daemon
2021-10-21 19:36 ` bugzilla-daemon
2021-10-21 19:37 ` bugzilla-daemon
2021-10-21 19:46 ` bugzilla-daemon [this message]
2021-10-21 20:04 ` bugzilla-daemon
2021-10-22  8:53   ` Johan Hovold
2021-10-22  8:53 ` bugzilla-daemon
2021-10-25 13:19   ` Johan Hovold
2021-10-25 13:19 ` bugzilla-daemon
2021-10-26 21:49 ` bugzilla-daemon
2021-10-27  2:05 ` bugzilla-daemon
2021-10-27 17:15 ` bugzilla-daemon
2021-10-27 20:07 ` bugzilla-daemon
2021-10-27 20:39 ` bugzilla-daemon
2021-10-27 21:14 ` bugzilla-daemon
2021-10-29 15:41 ` bugzilla-daemon
2021-11-01 19:07 ` bugzilla-daemon
2021-11-01 19:41 ` bugzilla-daemon
2021-11-01 19:49 ` bugzilla-daemon
2021-11-05 17:10 ` bugzilla-daemon
2021-11-05 19:39   ` Alan Stern
2021-11-16 19:40     ` Krzysztof Wilczyński
2021-11-05 18:56 ` bugzilla-daemon
2021-11-05 19:39 ` bugzilla-daemon
2021-11-16 19:40 ` bugzilla-daemon
2021-12-04  0:02 ` bugzilla-daemon
2021-12-04  0:05 ` bugzilla-daemon
2021-12-04  0:27 ` bugzilla-daemon
2021-12-04  0:29 ` bugzilla-daemon
2021-12-06 21:44 ` bugzilla-daemon

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