From: Alan Stern <stern@rowland.harvard.edu>
To: Zebediah Figura <zfigura@codeweavers.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
usb-storage@lists.one-eyed-alien.net, linux-usb@vger.kernel.org
Subject: Re: Bug 207877: ASMedia drive (174c:55aa) hangs in ioctl CDROM_DRIVE_STATUS when mounting a DVD
Date: Thu, 28 May 2020 12:04:20 -0400 [thread overview]
Message-ID: <20200528160420.GA14188@rowland.harvard.edu> (raw)
In-Reply-To: <465eaae3-fa60-f37e-1d62-c52236720798@codeweavers.com>
On Thu, May 28, 2020 at 10:02:07AM -0500, Zebediah Figura wrote:
> On 5/28/20 2:54 AM, Greg KH wrote:
> > On Wed, May 27, 2020 at 11:23:13PM -0500, Zebediah Figura wrote:
> > > Hello all,
> > >
> > > I was asked to report this bug here. There's more details in the bug report,
> > > but it's been proposed that there's a deadlock between device_reset() in
> > > scsiglue.c and usb_stor_control_thread().
> >
> > What bug report where? Can you provide a link and the details here in
> > the email?
>
> Oops, meant to link it and forgot. Sorry about that.
>
> https://bugzilla.kernel.org/show_bug.cgi?id=207877
This doesn't look like a deadlock to me, at least, not a deadlock
involving the device reset code.
Your next step should be to collect a usbmon trace showing what happens
when the problem occurs. See the instructions in
Documentation/usb/usbmon.rst.
Alan Stern
next prev parent reply other threads:[~2020-05-28 16:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 4:23 Bug 207877: ASMedia drive (174c:55aa) hangs in ioctl CDROM_DRIVE_STATUS when mounting a DVD Zebediah Figura
2020-05-28 7:54 ` Greg KH
2020-05-28 15:02 ` Zebediah Figura
2020-05-28 16:04 ` Alan Stern [this message]
2020-05-28 16:21 ` Zebediah Figura
2020-05-28 17:05 ` Alan Stern
2020-05-28 19:27 ` Zebediah Figura
2020-05-30 1:03 ` Alan Stern
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