[Letux-kernel] 5.4-rc1 woes

Andreas Kemnade andreas at kemnade.info
Wed Oct 2 23:16:27 CEST 2019


On Wed, 2 Oct 2019 22:19:31 +0200
Andreas Kemnade <andreas at kemnade.info> wrote:

[..]
> # first bad commit: [ac7c3e4ff401b304489a031938dbeaab585bfe0a] compiler: enable CONFIG_OPTIMIZE_INLINING forcibly
> 
> hmmmm...
> Now it depends on compliers?!
> andi at aktux:~/gta04/gta04-autotest-kernel$ arm-linux-gnueabihf-gcc --version
> arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0
> Copyright (C) 2018 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> And how to debug it? Well, lets first check whether reverting that
> improves things on 5.4-rc1.
> 
ok, tested to revert it: I had to disable it in .config afterwards,
seems to have crept into letux_defconfig. And so weird error messages.
No bad addresses. I guess it somehow incfluences some copy_to_user
stuff.
Weird. So where to ask...?

head()->scratch()
Regards,
Andreas


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