linux-kernel - Re: swiotlb/caamjr regression (Was: [GIT PULL] (swiotlb) stable/for-linus-5.12)

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Date:   Fri, 11 Jun 2021 08:21:53 +0200
From:   Christoph Hellwig <hch@....de>
To:     Horia Geantă <horia.geanta@....com>
Cc:     Dominique MARTINET <dominique.martinet@...ark-techno.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Christoph Hellwig <hch@....de>,
        Jianxiong Gao <jxgao@...gle.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Lukas Hartmann <lukas@...mn.com>,
        Aymen Sghaier <aymen.sghaier@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>
Subject: Re: swiotlb/caamjr regression (Was: [GIT PULL] (swiotlb)
 stable/for-linus-5.12)

On Thu, Jun 10, 2021 at 05:52:07PM +0300, Horia Geantă wrote:
> I've noticed the failure also in v5.10 and v5.11 stable kernels,
> since the patch set has been backported.

FYI, there has been a patch on the list that should have fixed this
for about a month:

https://lore.kernel.org/linux-iommu/20210510091816.GA2084@lst.de/T/#m0d0df6490350a08dcc24c9086c8edc165b402d6f

but it seems like it never got picked up.