Re: 5.10 kernel series fails to build on newer toolchain: FAILED unresolved symbol filp_close

On 6/5/25 10:46, Greg KH wrote:

I have no context here, sorry...

So basically, starting with GCC 15.1 the kernel series doesn't compile again and errors out with: FAILED unresolved symbol filp_close. I tested now v5.10.237 as well, which failed similar to v5.10.238.

There are some Debian reports out there:

https://linux.debian.bugs.dist.narkive.com/2JKeaFga/bug-1104662-failed-unres... https://www.mail-archive.com/debian-kernel@lists.debian.org/msg142397.html

And I also found this one:

https://lists-ec2.96boards.org/archives/list/linux-stable-mirror@lists.linar...

For GCC 14.1 I had to add the gnu 11 patch, which was discussed already. Also 5.4 and 5.15 still compile with the newer toolchain ...