From: zwisler@google.com
To: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Andrzej Pietrasiewicz <andrzej.p@collabora.com>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
"kernel@collabora.com" <kernel@collabora.com>
Subject: Re: xhci problem -> general protection fault
Date: Mon, 12 Oct 2020 15:53:48 -0600
Message-ID: <20201012215348.GA3324220@google.com> (raw)
In-Reply-To: <69f8cbc3-0ae7-cfb2-2fdd-556ada77381f@linux.intel.com>
On Mon, Oct 12, 2020 at 10:20:31PM +0300, Mathias Nyman wrote:
> On 1.10.2020 19.43, zwisler@google.com wrote:
> > On Tue, Sep 29, 2020 at 01:35:31AM +0300, Mathias Nyman wrote:
> I'm rewriting how xhci driver handles halted and canceled transfers.
> While looking into it I found an older case where hardware gives bad data
> in the output context. This was 10 years ago and on some specic hardware,
> see commit:
>
> ac9d8fe7c6a8 USB: xhci: Add quirk for Fresco Logic xHCI hardware.
>
> >
> > I'm happy to gather logs with more debug or run other experiments, if that
> > would be helpful. As it is I don't really know how to debug the internal
> > state of the HC further, but hopefully the knowledge that the patch below
> > makes a difference will help us move forward.
>
> Great thanks, it will take some time before rewrite is ready.
Should we/I invest time in trying to create a quirk similar to
> ac9d8fe7c6a8 USB: xhci: Add quirk for Fresco Logic xHCI hardware.
in the mean time, or should we just wait for your rewrite?
next prev parent reply index
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-17 15:30 Andrzej Pietrasiewicz
2020-09-18 10:50 ` Mathias Nyman
2020-09-18 14:20 ` Andrzej Pietrasiewicz
2020-09-25 13:40 ` Mathias Nyman
2020-09-25 21:05 ` Ross Zwisler
2020-09-28 13:32 ` Andrzej Pietrasiewicz
2020-09-29 7:13 ` Mathias Nyman
2020-10-01 14:13 ` Andrzej Pietrasiewicz
2020-09-28 22:35 ` Mathias Nyman
2020-10-01 16:43 ` zwisler
2020-10-12 19:20 ` Mathias Nyman
2020-10-12 21:53 ` zwisler [this message]
2020-10-13 7:49 ` Mathias Nyman
2020-10-13 8:29 ` Andrzej Pietrasiewicz
2020-10-13 16:44 ` zwisler
2020-11-19 16:52 ` Ross Zwisler
2020-11-23 15:06 ` Mathias Nyman
2020-12-02 22:59 ` Ross Zwisler
2020-12-04 18:07 ` Mathias Nyman
2020-12-08 17:24 ` Ross Zwisler
2020-12-09 13:11 ` Mathias Nyman
2020-12-09 18:54 ` Ross Zwisler
2020-12-30 12:33 ` Mathias Nyman
2021-01-06 18:52 ` Ross Zwisler
2021-01-07 8:57 ` Mathias Nyman
2021-01-07 16:07 ` Ross Zwisler
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