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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