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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Thu, 14 Jul 2022 17:05:53 +0530
Message-ID: <CA+G9fYvKHDqghKAWy_8MP6+hTXmQqaoTT_STT7v74Oh+G6hKFQ@mail.gmail.com>
Subject: Re: [next] Kernel panic - not syncing: swiotlb_init_remap: nslabs = 0
 too small
To:     Christoph Hellwig <hch@lst.de>,
        Anshuman Khandual <anshuman.khandual@arm.com>
Cc:     Linux-Next Mailing List <linux-next@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>,
        lkft-triage@lists.linaro.org, regressions@lists.linux.dev,
        linux-mm <linux-mm@kvack.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        "open list:IOMMU DRIVERS" <iommu@lists.linux-foundation.org>,
        Tom Lendacky <thomas.lendacky@amd.com>, conor@kernel.org,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Robin Murphy <robin.murphy@arm.com>
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Hi Christoph and Anshuman,

On Thu, 14 Jul 2022 at 13:52, Christoph Hellwig <hch@lst.de> wrote:
>
> On Thu, Jul 14, 2022 at 01:50:02PM +0530, Anshuman Khandual wrote:
> > 26ffb91fa5e0fb282e8 ("swiotlb: split up the global swiotlb lock")
>
> This has been replace with 20347fca71a387a3751f7bb270062616ddc5317a
> that should fix the issue.

Thanks for your inputs.
As per your suggestion, I have reverted those two patches on Linux next tree
and built for arm64 and the boot test successfully.

467f49f87d84 Revert "swiotlb: split up the global swiotlb lock"
2706e93f7f8a Revert "swiotlb: fail map correctly with failed io_tlb_default_mem"

Boot pass log link,
https://lkft.validation.linaro.org/scheduler/job/5284375#L583

Best Regards
Naresh Kamboju

--
Linaro LKFT
https://lkft.linaro.org