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From: Michal Kubecek <>
To:, Alan Stern <>,
	Greg Kroah-Hartman <>,
	Jiri Kosina <>,
	Benjamin Tissoires <>
Subject: [REGRESSION][BISECTED] flood of "hid-generic ... control queue full" since v5.14-rc1
Date: Mon, 16 Aug 2021 15:00:59 +0200	[thread overview]
Message-ID: <> (raw)

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starting with v5.14-rc1, my kernel log gets flooded with messages

  hid-generic 0003:051D:0002.0002: control queue full

at rate of ~33 per second. Device 051d:0002 is an APC UPS (BR-650 VA).
I bisected the issue to commit

  7652dd2c5cb7 ("USB: core: Check buffer length matches wLength for control transfers")

Reverting this commit on top of v5.14-rc6 resolves the issue. I suspect
the problem is some missing cleanup when usb_submit_urb() bails out on
the newly added check but I'm not familiar enough with the code to see
what is missing or if the problem is on USB or HID side.


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             reply	other threads:[~2021-08-16 13:01 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-16 13:00 Michal Kubecek [this message]
2021-08-16 13:26 ` Greg Kroah-Hartman
2021-08-16 14:13   ` Michal Kubecek
2021-08-16 14:38     ` Alan Stern
2021-08-16 19:12       ` Michal Kubecek
2021-08-30 15:48         ` Oleksandr Natalenko
2021-08-30 16:07           ` Alan Stern
2021-08-30 16:31             ` Benjamin Tissoires
2021-08-30 19:23         ` Holger Hoffstätte

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