lkml.org 
[lkml]   [2017]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [linux-sunxi] [PATCH v2 3/6] ARM: sun4i: Convert to CCU
On Tue, Dec 12, 2017 at 9:26 AM, Priit Laes <plaes@plaes.org> wrote:
> On Mon, Dec 11, 2017 at 02:22:30PM -0800, Kevin Hilman wrote:
>> On Sun, Mar 26, 2017 at 10:20 AM, Priit Laes <plaes@plaes.org> wrote:
>> > Convert sun4i-a10.dtsi to new CCU driver.
>> >
>> > Signed-off-by: Priit Laes <plaes@plaes.org>
>>
>> I finally got around to bisecting a mainline boot failure on
>> sun4i-a10-cubieboard that's been happening for quite a while. Based
>> on on kernelci.org, it showed up sometime during the v4.15 merge
>> window[1]. It bisected down to this commit (in mainline as commit
>> 41193869f2bdb585ce09bfdd16d9482aadd560ad).
>>
>> When it fails, there is no output on the serial console, so I don't
>> know exactly how it's failing, just that it no longer boots.
>
> We tried out latest 4.15 with various compilers and it works:
> - gcc version 7.1.1 20170622 (Red Hat Cross 7.1.1-3) (GCC) - A10 Gemei G9 tablet
> - gcc 7.2.0-debian - A10 Cubieboard

And you can reproduce the bug with gcc5 or gcc6?

Very strange that a DT only patch would cause a gcc related regression
and if it does, it should be investigated. I don't think requiring
gcc7 is an appropriate solution.

@Chen-Yu, @Maxime: are you guys OK with requiring gcc7 for working
upstream boot for A10?

Kevin

\
 
 \ /
  Last update: 2017-12-12 22:25    [W:0.116 / U:0.208 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site