Re: Cannot compile 6.1.2 kernel release

[Bagas Sanjaya <bagasdotme@gmail.com>]

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On Sun, Jan 01, 2023 at 11:05:18AM +0100, Willy Tarreau wrote:
> > 
> > To be precise I have this on gcc 10 in Debian:
> > 
> > 
> > during GIMPLE pass: fre
> > drivers/media/pci/cx18/cx18-i2c.c: In function 'init_cx18_i2c':
> > drivers/media/pci/cx18/cx18-i2c.c:300:1: internal compiler error:
> > Segmentation fault
> >    300 | }
> 
> As Greg said it's definitely a compiler bug, so it will interest Gcc
> developers, or your distro's gcc package maintainers in case it's not
> up to date. There are toolchains available on kernel.org here:
> 
>    https://mirrors.edge.kernel.org/pub/tools/crosstool/
> 
> The laest 10.x available is 10.4. If it works with this one it may indicate
> that your package is lacking some recent fixes, so it might be a question
> for your distro's gcc package maintainers. If it fails it indicates a bug
> not yet fixed in gcc and your distro maintainers won't be of any help here,
> you'll have to report it to the gcc devs instead.
> 
> Note that they'll very likely ask about a reproducer (and most likely your
> config). But a quick test for me with this driver built as a module on
> x86_64 with gcc-10.4 from kernel.org doesn't show any problem:
> 
>   $ make CROSS_COMPILE=/f/tc/nolibc/gcc-10.4.0-nolibc/x86_64-linux/bin/x86_64-linux- drivers/media/pci/cx18/cx18-i2c.o
>   (...)
>     CC [M]  drivers/media/pci/cx18/cx18-i2c.o
>   $ ll drivers/media/pci/cx18/cx18-i2c.o 
>   -rw-rw-r-- 1 willy users 33920 Jan  1 11:00 drivers/media/pci/cx18/cx18-i2c.o
> 

Hi Willy,

I can confirmed that no segfault reported when compiling
x86_64-defconfig + CONFIG_VIDEO_CX18 using default gcc from Debian 11,
so this can be hardware issues.

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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