From: Oliver Neukum <oneukum@suse.com>
To: Alan Stern <stern@rowland.harvard.edu>,
Steven Rostedt <rostedt@goodmis.org>
Cc: Jens Axboe <axboe@kernel.dk>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-block@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
linux-usb@vger.kernel.org
Subject: Re: Lockup on USB and block devices
Date: Mon, 14 Oct 2019 13:59:41 +0200 [thread overview]
Message-ID: <1571054381.19529.16.camel@suse.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1910011427110.1991-100000@iolanthe.rowland.org>
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.
Hi,
that would imply that usb_unlink_urb() is malfunctioning
without taking down the whole bus. Is that likely?
Regards
Oliver
next prev parent 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 Lockup on USB and block devices 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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