linux-kernel - Re: AArch64 boot failure on Hikey960 on latest master after "arm64: insn: Don't fallback on nosync path for general insn patching"

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Date:   Thu, 16 Aug 2018 21:37:22 +0300
From:   Tuomas Tynkkynen <tuomas.tynkkynen@....fi>
To:     John Stultz <john.stultz@...aro.org>,
        Will Deacon <will.deacon@....com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: AArch64 boot failure on Hikey960 on latest master after "arm64:
 insn: Don't fallback on nosync path for general insn patching"

Hi,

On 08/16/2018 08:57 PM, John Stultz wrote:
> On Thu, Aug 16, 2018 at 3:22 AM, Will Deacon <will.deacon@....com> wrote:
>> Hi Tuomas, [+John]
...
>>
>> Out of interest -- do you know if Hikey960 is used by any boot-testing
>> farms? The patch above has been in linux-next for ages, but we didn't see
>> any complaints until it hit mainline :(
> 
> Unfortunately not yet. HiKey960 upstreaming is ongoing, and the UFS
> support patches should land in the 4.19 merge window.
> After which, it will enable more mainline testing as folks won't have
> to carry patches just to get the system to boot.
> 

A microSD rootfs gets me a working system on e.g. v4.17... except that
even there the system hangs if I don't have 'clk_ignore_unused' on
the kernel command line. I wonder if this is a known problem?

- Tuomas