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From: Oliver Neukum <>
To: Alan Stern <>,
	Steven Rostedt <>
Cc: Jens Axboe <>,
	Greg Kroah-Hartman <>,, LKML <>,
Subject: Re: Lockup on USB and block devices
Date: Mon, 14 Oct 2019 13:59:41 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Am Dienstag, den 01.10.2019, 14:31 -0400 schrieb Alan Stern:
> It looks like a problem with your xHCI USB host controller.  Normally a
> usb-storage transfer would be aborted after 90 seconds.  But if the
> host controller (or its driver) isn't working right, and the abort
> never completes, you end up with a situation like this -- usb-storage
> and the higher SCSI and block layers waiting indefinitely for an event
> that won't occur.


that would imply that usb_unlink_urb() is malfunctioning
without taking down the whole bus. Is that likely?


  reply	other threads:[~2019-10-14 11:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-01 17:44 Steven Rostedt
2019-10-01 18:31 ` Alan Stern
2019-10-14 11:59   ` Oliver Neukum [this message]
2019-10-14 15:13     ` Alan Stern
2019-10-14 10:56 ` Oliver Neukum

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