linux-kernel - Re: [GIT PULL] dma-mapping updates for Linux 6.12

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Message-ID: <9e2388993a63cfbb7f48e847852d308dee850109.camel@xry111.site>
Date: Sat, 21 Sep 2024 01:48:20 +0800
From: Xi Ruoyao <xry111@...111.site>
To: Christoph Hellwig <hch@...radead.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>, 
	linux-kernel@...r.kernel.org, iommu@...ts.linux.dev
Subject: Re: [GIT PULL] dma-mapping updates for Linux 6.12

On Sat, 2024-09-21 at 01:15 +0800, Xi Ruoyao wrote:
> On Fri, 2024-09-20 at 07:06 -0700, Christoph Hellwig wrote:
> > On Fri, Sep 20, 2024 at 04:26:01AM -0700, Christoph Hellwig wrote:
> > > On Fri, Sep 20, 2024 at 05:41:51AM +0800, Xi Ruoyao wrote:
> > > > This breaks using my laptop camera with gstreamer (with "gst-
> > > > launch-1.0
> > > > v4l2src ! videoconvert ! autovideosink" or GNOME snapshot).
> > > 
> > > What camere and driver are you using?
> 
> Bus 003 Device 003: ID 0c45:6366 Microdia Webcam Vitade AF
> 
> The driver is uvcvideo.

And I just borrowed a different camera:

Bus 003 Device 010: ID 1bcf:2283 Sunplus Innovation Technology Inc. FULL HD webcam

It suffers the same issue so it's unlikely to be related to a specific
camera model.  This camera is also driven by uvcvideo.

v4l2gl from v4l-utils-1.28.1 suffers the issue either, so it's unlikely
to be related to a specific userspace v4l2 program too.

> > And what architecture and platform are you on? 
> 
> A x86_64 laptop (with Core i5-11300H CPU).
> 

-- 
Xi Ruoyao <xry111@...111.site>
School of Aerospace Science and Technology, Xidian University