On 1.01.2023 11:05, Willy Tarreau wrote: > On Sun, Jan 01, 2023 at 09:01:22AM +0000, Lukasz Kalamlacki wrote: >> On 1.01.2023 09:47, Greg KH wrote: >>> On Sun, Jan 01, 2023 at 08:14:12AM +0000, Lukasz Kalamlacki wrote: >>>> On 1.01.2023 07:53, Willy Tarreau wrote: >>>>> On Sat, Dec 31, 2022 at 04:58:51PM +0000, Lukasz Kalamlacki wrote: >>>>>> Hey, >>>>>> >>>>>> >>>>>> Do you have an issue compiling 6.1.2 linux kernel? >>>>>> >>>>>> I cannot compile it. >>>>> For me it compiles and boots. You'll need to share your config and error >>>>> report if you want to get some help. >>>>> >>>>> Willy >>>> I was trying to compile on Debian Bullseye where default gcc is version >>>> 10, when I upgraded gcc to version 12 from sid repo i Was able to >>>> compile too. On stable Debian without addition during compile >>>> "segmentation fault" occurs at the compilation of cx8-i2c.c file. You >>>> can try on kvm or virtualbox this compilation. >>> Sounds like a gcc bug you should be notifying the gcc developers about. >>> >>> good luck! >>> >>> greg k-h >> 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 > > Hoping this helps, > Willy Allright, my kernel config is available here: https://kalamlacki.eu/KERNELS/kconfig-6.1 Compilation on 11th gen i5 core cpu using command: make -j 9 bindeb-pkg Best, Łukasz
