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Ubuntu kernel 7.0.0-42-generic fails to compile. 7.0.0-38-generic works. #49
Description
NVIDIA Open GPU Kernel Modules Version
615.78.08-p2p, efed674
Operating System and Version
Ubuntu 26.04.1 LTS
Kernel Release
Working: 7.0.0-38-generic #38-Ubuntu SMP PREEMPT_DYNAMIC Fri Sep 4 09:10:14 UTC 2026 x86_64 GNU/Linux
Failing: 7.0.0-42-generic
Please confirm you are running a stable release kernel (e.g. not a -rc). We do not accept bug reports for unreleased kernels.
- I am running on a stable kernel release.
Build Command
sudo ./install.sh
Terminal output/Build Log
././common/inc/nv-linux.h:1280:34: error: field ‘cxlds’ has incomplete type
1280 | struct cxl_dev_state cxlds;
| ^~~~~
In file included from ././common/inc/nv-dmabuf.h:27,
from nvidia/nv-dmabuf.c:24:
././common/inc/nv-linux.h:1280:34: error: field ‘cxlds’ has incomplete type
1280 | struct cxl_dev_state cxlds;
| ^~~~~
make[5]: *** [/usr/src/linux-headers-7.0.0-42-generic/scripts/Makefile.build:289: nvidia/nv-vtophys.o] Error 1
In file included from nvidia/nv-mmap.c:27:
././common/inc/nv-linux.h:1280:34: error: field ‘cxlds’ has incomplete type
1280 | struct cxl_dev_state cxlds;
| ^~~~~```
### More Info
After updating to the latest kernel 7.0.0-42 on ubuntu 26.04 the compile fails.
error: field 'cxlds' has incomplete type
It looks to be a bug in the NVIDIA Open GPU Kernel Modules: https://github.com/NVIDIA/open-gpu-kernel-modules/issues/1433
They also have a related upcoming change:
We have an equivalent fix in our tree already, and it should be included in our upcoming 620.xx releases.
https://github.com/NVIDIA/open-gpu-kernel-modules/pull/1438
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