linux-kernel - Re: [PATCH v8 0/4] Fix issues with huge mapping in ioremap for ARM64

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Message-ID: <fcc152ba-c88e-6330-7608-4bec398d33d8@codeaurora.org>
Date:   Thu, 5 Apr 2018 14:39:15 +0530
From:   Chintan Pandya <cpandya@...eaurora.org>
To:     Marc Zyngier <marc.zyngier@....com>, catalin.marinas@....com,
        will.deacon@....com, mark.rutland@....com, toshi.kani@....com
Cc:     linux-arch@...r.kernel.org, arnd@...db.de,
        ard.biesheuvel@...aro.org, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, kristina.martsenko@....com,
        takahiro.akashi@...aro.org, james.morse@....com,
        tglx@...utronix.de, akpm@...ux-foundation.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v8 0/4] Fix issues with huge mapping in ioremap for ARM64



On 4/3/2018 5:25 PM, Chintan Pandya wrote:
> 
> 
> On 4/3/2018 2:13 PM, Marc Zyngier wrote:
>> Hi Chintan,
> Hi Marc,
>>
>> On 03/04/18 09:00, Chintan Pandya wrote:
>>> This series of patches are follow up work (and depends on)
>>> Toshi Kani <toshi.kani@....com>'s patches "fix memory leak/
>>> panic in ioremap huge pages".
>>>
>>> This series of patches are tested on 4.9 kernel with Cortex-A75
>>> based SoC.
>>
>> Given that this is targeting mainline, can you please test with 4.16?
>> Basing your patches on something that is over 15 months old is not
>> exactly reassuring.
> 
> We have 4.14 ported with the devices (remotely) accessible to me. If
> that's sufficient, I will post test report by tomorrow.
> 
> If we really require these patches to be tested with 4.16, I would need
> some help here.
> 
Rajendra Nayak <rnayak@...eaurora.org> helped me with testing these
patches on 4.16 kernel (with all the dependent patches already part of
4.16) on SDM845.

In addition to kernel boot up, he executed my test-code which was
stressing ioremap framework and was able to reproduce the bug without
these patches (and Will Deacon's WA).

That passed 10hrs of run.

[36001.446355] IOREMAP_TEST: my tests ended now

Thanks Rajendra Nayak  for testing these patches.

> Thanks,
> 
>>
>> Thanks,
>>
>>     M.
>>
> 
> Chintan

Chintan
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